EP3243994B1 - Press fit storm window system - Google Patents
Press fit storm window system Download PDFInfo
- Publication number
- EP3243994B1 EP3243994B1 EP17170267.3A EP17170267A EP3243994B1 EP 3243994 B1 EP3243994 B1 EP 3243994B1 EP 17170267 A EP17170267 A EP 17170267A EP 3243994 B1 EP3243994 B1 EP 3243994B1
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- EP
- European Patent Office
- Prior art keywords
- bulb
- panel
- carrier
- window
- inch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/28—Wing frames not characterised by the manner of movement with additional removable glass panes or the like, framed or unframed
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/26—Compound frames, i.e. one frame within or behind another
- E06B3/2605—Compound frames, i.e. one frame within or behind another with frames permanently mounted behind or within each other, each provided with a pane or screen
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
- E06B7/23—Plastic, sponge rubber, or like strips or tubes
- E06B7/2305—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging
- E06B7/2307—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with a single sealing-line or -plane between the wing and the part co-operating with the wing
- E06B7/2309—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with a single sealing-line or -plane between the wing and the part co-operating with the wing with a hollow sealing part
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
- E06B7/23—Plastic, sponge rubber, or like strips or tubes
- E06B7/2305—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging
- E06B7/2312—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with two or more sealing-lines or -planes between the wing and part co-operating with the wing
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/04—Shutters, movable grilles, or other safety closing devices, e.g. against burglary of wing type, e.g. revolving or sliding
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B2009/005—Storm panels; hurricane shutters
Definitions
- This disclosure relates generally to storm windows, and more particularly to a press fit storm window that may include a facility for controlling blowout events.
- Storm windows are generally mounted on the outside or inside of main windows of a home or business. They are oftentimes used in cold climates to reduce energy leakage from the windows, for instance, cold air leaking into a house through the main windows. Storm windows may be mounted externally or internally, and are generally made from glass, plastic, or other transparent material. In some instances storm windows may be translucent or opaque.
- a method of measuring efficiency of thermal insulation which is the opposite of a rate of heat transfer, is R-Value.
- An R-value number indicates the relative resistance to heat flow, where a higher R-value has greater thermal efficiency.
- the R-value generally depends on the type and size of the insulation system being rated, for example the material selected, its size, thickness, and density.
- R-values of multi-layer systems equal the total of the individual layered systems.
- present-day storm window systems are difficult to install and remove.
- present-day storm window systems are mechanically attached with mounting hardware to either the inside or outside of the main window.
- the windows may be heavy and difficult to manipulate.
- Other, less expensive systems use see-through plastic sheets that are taped or attached to window casings.
- the plastic sheets may be "shrunk" using a heat gun which, when directed at the plastic sheet, causes the sheet to contract, making the sheet taught, and easier to see through.
- Such prior art systems are, similar to the mechanical systems as described above, difficult and time-consuming to install.
- Embodiments of the invention address these and other problems in the prior art.
- Document US 2014/157696 discloses an airflow reduction system including an insulating panel assembly for sealing a window within a jamb, wherein the insulating panel assembly has a frame configured to fit within the jamb and a glazing panel in the frame coated with a low-emissivity or solar control coating or film.
- Document US 5 887 392 discloses a jambliner having a multi-part design including a sash-engaging member defining a track and a pair of retaining arms extending from the sash-engaging member defining a channel.
- Document DE 203 12 327 discloses a sealing profile for a refrigerator sliding cover.
- Embodiments of the invention are directed to storm windows that may be easily and readily installed in a window frame of an existing window.
- a transparent portion of the window is generally see-through and may be made from glass, plastic, such as PLEXIGLASS, or other clear, generally rigid material.
- the window may be translucent, patterned, or opaque.
- a resilient material forming a resilient support surrounds the edges of the transparent portion, at least in part, such that, when the resilient material is compressed smaller than its natural state, it provides a "righting" or reformation force between the window frame and the transparent portion of the storm window. This reformation force of the resilient material puts pressure both on the window frame and the edge of the storm window and frictionally holds the storm window in place without the need for mounting hardware.
- the storm window may also include features for keeping it in place should outside forces act on the storm window system, such as a strong wind leaking through the main window, as described below.
- Fig. 1 is a side cutaway view of a portion of a storm window.
- a panel 130 is a rigid, transparent panel which serves as the "window" portion of the storm window.
- the panel 130 may be made from glass, plastic, such as PLEXIGLASS, or other suitable material.
- the thickness of the panel 130 is generally thin, such as 3.175 mm (1/8"), but other thickness panels may be used as well.
- the panel 130 may include decorative features, such as patterned translucent portions seen in privacy rooms, such as bathrooms. Other decorative features may include stained glass or material that appears to be stained glass. Still other decorative features may include decorative grill work such as iron grill work or material that appears to be such decorative grill work.
- the panel could be made of metal or wood.
- a resilient support 110 generally includes a bulb portion 103 and a groove portion 107, and is positioned to generally surround at least a portion of the edge of the panel 130.
- the resilient support 110 is mechanically held fast to the panel 130 by the "groove" 107 made from space between retaining portions 106, 108.
- the retaining portions 106, 108 are generally spaced so that they each contact a front or rear surface of the panel 130, thereby keeping the resilient support 110 in place and from moving relative to the panel.
- an adhesive may facilitate anchoring the resilient support 110 to the panel 130, at least in some portions of their contact.
- the retaining portions 106, 108 are generally sized to provide enough frictional force to securely hold the panel 130 surfaces.
- the retaining portions 106, 108 are 3.175 mm (1/8") tall, but could vary between approximately 0.79 mm (1/32") and approximately 50.8 mm (2 inches), depending on the size and material selection of the panel 130.
- the width of the groove 107 is generally sized to exactly match the thickness of the panel 130, but may be slightly smaller or larger depending on the installation.
- adhesives could be used to adhere or attach the panel to the resilient support 110, with or without requiring the retaining portions 106, 108.
- the bulb portion of the resilient support 110 may take one of several cross-sectional shapes.
- the cross section of the bulb portion 103 of the material making the resilient support 110 is circular, being formed from an outer surface 102 of the support 110 and a center "hole," the surface of which is indicated at 104.
- the cross section of the bulb portion 103 may take many shapes, as described below, and the "hole” may be partially or fully filled with additional resilient material, or another material, also as described in detail below.
- the resilient support 110 is formed of a yieldable material that deflects or deforms under pressure and, based on its shape and material selection, provides a return reformation force, i.e., the force that the material exerts on the contact point or points of the object causing its deformation.
- a return reformation force i.e., the force that the material exerts on the contact point or points of the object causing its deformation.
- the reformation force increases relative to the amount of deformation.
- the material of the resilient support 110 produces less and less reformation force until the material returns to its "natural,” undeformed state, at which point the reformation force is zero.
- the resilient support 110 is a single, uniform material, such as foam.
- the resilient support 110 is made from a combination of materials, such as a silicone cover or shell filled with a foam insert.
- the foam insert may be solid or may further include a cross sectional hole similar to the hole illustrated in Fig. 1 .
- Other materials may also be introduced into the hole, whether or not covered by a silicone shell, such as metal, foam or plastic, shaped in various shapes, all of which together provide the resilient support 110 with the desired reformation force.
- Embodiments of the invention may be produced from a large variety in materials, in various shapes and sizes.
- the resilient support 110 as described above, may be made from foam, silicone, EPDM, or PVC, or derivatives, or any other material having the properties desired.
- the cross-sectional shape of the resilient material forming the resilient support 110 can be selected for the desired properties of the storm window.
- the bulb of the resilient support 110 may be circular, oval, spiral, elliptical, square, triangular, or may have an "open" shape, such as L, U, V, or C. In either case, if there is a hole, such as the one illustrated at 104 of Fig.
- another material or set of materials may fully or partially fill the hole to provide desired qualities of reformative force, resiliency, compression set (or compression memory), etc.
- the materials used in the herein-described storm windows are subjected to large temperature variations and therefore should be selected to withstand the expected conditions, or to have their use limited only to conditions where the material properties will be satisfactory.
- the storm windows will generally be exposed to the sun, they should be resistant to radiation, such as UV radiation.
- Fig. 2 is a front view of a storm window 200.
- the storm window 200 includes a panel 230 surrounded by sections 210, 212, 214, and 220 of the resilient support 110 described above with reference to Fig. 1 .
- Individual sections of the resilient material may join with mitered corner joints, such as illustrated at 216, 218, or they may join with butt joints, as illustrated at 222, 224. Corner joints 216, 218 and butt joints 222, 224 may be sealed with thermal sealer or adhesive, or may be joined in other conventional methods.
- the bottom section 220 may be formed of a different material than the other sections 210, 212, 214 based on operational properties desired of the window 200, or based on other reasons.
- the bottom section 220 is formed of a rigid or semi-rigid material, such as aluminum, to stiffen the panel 230 and to prevent "droop".
- any of the sections 210, 212, 214, 220 may be formed of a different material, or have a different shape, or other properties, than the others.
- a rectangular window is illustrated in Fig. 2 , as it is the most common window shape, embodiments can have storm windows of any shape.
- Fig. 3 is a diagram illustrating installation of the storm window 200 of Fig. 2 inserted into a main window 00.
- the storm window 200 is gently or forcefully inserted into a frame 380 of the main window 300.
- the size of the storm window 200 is selected such that the overall dimensions of the panel 230 plus the sections 210, 212, 214, and 220, when such sections are in their natural, non-deformed state, is larger than the frame 380 of the main window.
- the sections 210, 212, 214, and 220 deflect or deform from their natural state, as described above.
- the resilient support 110 Fig.
- the resilient material 110 makes up the sections 210, 212, 214, and 220 remains in a continuously deformed state, by virtue of the selection of size of the storm window. Because the resilient material 110 is deformed, it produces the reformation force described above, between the edges of the panel 230 and the frame 380 of the main window 300. This reformation force, in conjunction with the frictional forces where the resilient support 110 meets the frame 380, keeps the storm window 200 in place. As described above, the resilient support 110 keeps the panel 230 in place by virtue of the groove 107 ( Fig. 1 ).
- Figs. 4 and 5 show additional detail of a corner section of a storm window 400, both before ( Fig. 4 ) and during ( Fig. 5 ) installation into a frame 580.
- Fig. 6A is a perspective view of a corner portion of a storm window.
- a silicone cover 603, 607 may also include nipple sections 601, 609, which may be inserted in a mating receiving portion of a section of resilient material of a resilient support, such as sections 210, 212, 214, or 220 described above.
- the nipple portion 601, 609 is shaped such that, when inserted into the resilient support, that the outside surfaces of the receiving portion matches to the outside surface of the silicon cover 603, 607, to make a uniform appearance.
- FIG. 6A are simply sections of the support having a diameter that matches the inside diameters of the silicone cover 605, 607, as well as the inside diameter of a section of the resilient support, thereby providing a joining surface that may be friction fit or otherwise fixed.
- a groove 617 is formed between retaining portions 605, 615, which is shaped to accept a panel (not illustrated in Fig. 6A ).
- the cover pieces 603 and 607 join at a corner 619.
- a corner piece 637 may be formed of multiple pieces, such as in Fig. 6A , or may be made in a single-constructed piece.
- the corner piece 637 may include a "fin" 641, formed of a relatively thin piece of material, which may be the same or different material used to make the corner piece 637.
- the fin 641 is generally yieldable and more easily deformed than the corner piece 637 itself.
- the fin 641 may further include a notch 643, which allows the fin 641 to better deform in a corner of a window frame (not illustrated). In other words, without the notch 643, the fin 641 may "pucker," due to excess material, if placed into a tight corner. In embodiments that include the notch 643, less or no puckering occurs.
- a curved corner is illustrated (excluding the fin 641) rather than a corner having straight lines.
- This feature of the design was included because, in many installations, the resilient material tends to bunch up and "buckle" in corners, due to so much material being present.
- Embodiments of the invention have sought to minimize the amount of material in the corners in a number of ways, such as the rounded corners as illustrated.
- the corner pieces do not form a 45 degree angle when not installed, and instead are separated by a pie-shaped gap between areas where the horizontal resilient material meets the vertical resilient material before being installed. When installed, the resilient material compresses to fill the corner with a minimum amount, or even no amount of gaps between the resilient material and the window frame.
- dimension "a” may extend from approximately 6.35mm (1/4 inch) to 76.2mm (3 inch)
- dimensions "b” and “c” may be 1.59mm (1/16")- 102mm (4") depending on the installation
- dimension "d” may be 8.47mm (1/3")- 114mm (4.5")
- dimension "e” may be 3.175mm (1/8")- 50.8mm (2") again, depending on the size and material selection making the corner piece 637.
- These dimensions may vary from 10-500% depending on the particular details.
- the storm window is sized according to the dimensions of the window frame in which the storm window is being installed.
- the storm window is inserted into the window frame in which a deformable, resilient material of the support is compressed during the insertion.
- the resilient material of the support exerts a reformation force between the window frame and the resilient support of the storm window. This reformation force coupled with frictional forces between the resilient support and the window frame, and to an extent, to the friction forces holding the panel in place by the resilient support, holds the storm window securely in place.
- the storm window When the wind forces are light, the storm window may simply re-position itself within the window frame. When wind forces are strong, however, the storm window may be blown completely out of the window frame, which could fall into the house and cause damage or injury. In any event, if the storm window is unseated by wind or other forces, it is generally no longer seated correctly in the window, such that wind may enter the house, which may significantly reduce the insulation value of the storm window.
- Fig. 7A is a top cross-sectional view of a storm window 700 described above.
- a panel 706 is held in place by side resilient support sections 702, 704.
- a resilient support section that would otherwise cover the top edge of the panel 706 is omitted.
- description of the storm window 700 is omitted for brevity, and can be found above.
- Fig. 7B is a top cross-sectional view of a storm window 710 that in many respects is identical to the storm window 700 of Fig. 7A .
- a panel 716 in the storm window 710 is formed with a pre-determined curve along its entire the top edge.
- the bottom edge (not illustrated) may be similarly curved, which gives the panel 716, overall, a partial-cylinder shape, and thereby creating a relatively stiff construction of the panel.
- Such a panel 716 is very resistant to bending, under force, across its vertical axis, while it would be more inclined to deflect across its horizontal axis.
- Using the bended shape of the panel 716 in a storm window such as described above generally creates a more rigid, stronger constructed window that may be able to withstand more force with less material than a conventional storm window having a flat panel, such as the panel 706 described in Fig. 7A .
- a flat panel such as the panel 706 described in Fig. 7A .
- Fig. 7C is a top cross-sectional view of a storm window 720, which is similar to the storm window 710 described above. Different from the storm window 710, the storm window 720 is constructed of a panel having a generally straight portion 726 and a generally curved portion 727. Similarly, Fig. 7D is a top cross-sectional view of a storm window 730 that includes two curved portions, 735, 737, curved in opposite directions, and having a relatively straight portion 736 therebetween. Various uses of storm windows having curved sections are described below with reference to Figs. 8A and 8B .
- top may as well be referred to as “side,” depending on which orientation the storm window is inserted into the window frame, as described in detail below.
- Fig. 8A is a front view of a storm window 820 having two curve points, 822 and 824.
- the curve points 822, 824 are similar to the areas of curvature illustrated with reference to Fig. 7D above.
- the storm window 820 is illustrated as being mounted within a window frame 840, and being held in place by resilient sections 830, 832, 834, and 836 as described above.
- the curvatures in the panel of the storm window 820 marked by the curve points 822 and 824 are in opposite directions, though not illustrated in Fig. 8A .
- the portion of the panel above the curve point 824, near the top of the window frame 840 is curved inward, toward the inside of a house Similarly, the portion of the panel below the curve point 822 is curved outward, toward the outside of the house.
- Such a construction and installation of the storm window 820 of Fig. 8A within the window frame 840 provides a number of advantages, the most important of which is a controlled blowout feature.
- the storm window is mostly likely to release pressure by the top portion of the window 820 moving toward the inside of the house, while the bottom portion and side portions remain relatively stationary. This happens because the curvature of the panel along the horizontal dimension, at the curve points 822, 824, stiffens the panel of the storm window 820 along its horizontal plane.
- the vertical dimension has no additional stiffening measures, therefore, under a force from blowing wind, it is more likely that either the top or bottom edges 836, 832 of the window illustrated in Fig. 8A fails before the side edges 830, 834.
- the portion of the panel 820 above the curve point 824 is already curved inward, toward the house, while the portion of the panel below the curve point 826 is curved outward.
- This configuration makes the top edge 836 of the storm window 820 more likely to move under pressure than the bottom edge 832. It is desirable to force a top edge of a storm window to release before the bottom edge of a window for a number of reasons.
- Fig. 8B is similar in many respects to Fig. 8A , however the window in the window frame 870 covered by storm window 850 is a horizontal window, rather than a vertical window in Fig. 8A .
- the storm window 850 may include only one curve point 852 or two curve points 852, 854.
- the storm window 850 of Fig. 8B includes both curve points 852, 854, both of the sections of the storm window beyond the curve points may bend inward toward the house.
- the windows can be installed in either a horizontal or vertical orientation.
- Fig. 9A illustrates another system for pre-disposing one or more portions of a storm window to release from its set position in a window frame before other portions.
- a resilient support section 910 includes a bulb portion 903 and a groove portion 907.
- the resilient support section 910 includes a series of friction ribs 911 coupled to the bulb portion 903.
- the friction ribs 911 may be made from the same material as the resilient support section 910 or may be made from another material. If made from another material, the friction ribs 911 are attached to the resilient support section 910 by appropriate methods, such as adhesive or thermal welding.
- the friction ribs 911 may be designed so that they provide more frictional force in one direction than another. For instance, with reference to Fig. 9B , it is easier to insert the resilient support section into the window frame, such as during installation, than removing it from the window frame, such as during a wind event. This increased frictional force is due to the shape and positioning of the friction ribs 911.
- the friction ribs 911 may be relatively long and thin, or, with reference to Fig. 9C , the friction ribs 912 may be relatively large and relatively "chunky". In either case the ribs 911, 912 may be angled in a certain direction relative to a vertical plane of the resilient support section 910. This angling, along with the physical structure of the ribs 911, 912 causes the friction difference depending on direction of movement of the resilient support section 910.
- Other designs of friction ribs are described below with reference to Figs. 16A-16C .
- the bulb portion of a resilient support section for example the bulb portion 103 in Fig. 1 can take any shape, and need not be circular in cross section.
- the hole illustrated in Fig. 1 may be filled with material that may change the reformation force of the resilient support sections. Changes in shape, thickness, material selection and the presence or absence of holes, for instance, in the resilient support can change the reformation force of the resilient support when it is holding a storm window in place.
- the hole in the resilient support on the sides of a storm window installation may be filled with a material that has more restorative force than that the material filling the hole in the resilient support attached to the top and bottom of the storm window.
- the sides of such a storm window are held more firmly to the window frame than the top and bottom.
- the top or bottom are more likely to release than either side, thereby giving a system of controlled blowout.
- top portion 948 of a storm window 930 has a lower resilient force when installed in a window frame than the bottom portion 944 or side portions 942, 946.
- Various foams or other fillers used inside the hole of the resilient support may have different "compression set" values, which is the percent of original size a material will be restored to after deformation. Therefore, choosing materials having different compression set values to fill the hole in the resilient support allows the designer or builder choices for a material suitable for the particular installation.
- a resilient support having ribs 911 or 912 of Figs. 9A or 9B may be employed in only those portions of the storm window where extra friction is desired. In such a system, the resilient support that does not include such friction enhancing measures will likely be the first to release in a wind event.
- the size of the panel itself may be chosen relative to how strongly different portions of the storm window are desired to be held in a window frame. For instance, the width of the storm window, as a percentage of a size of the main window, may be different than the percentage size of the height of the main window.
- Fig. 11A illustrates a relief vent 970 through an area of a resilient support 960 in a storm window 950. Details are illustrated in Fig. 11B and 11C.
- Fig. 11B is a side cross sectional view of the resilient support 960 of Fig. 11A .
- a relief vent hole 972 may be laser drilled or otherwise formed through the material making up the resilient support, providing a portal through which air pressure could pass from one side of the resilient support 960, for instance the side facing the main window, into the room.
- the relief vent hole would have to be sized such that they provide such an air passage even when the resilient support 960 is compressed.
- An optional one-way flap 974 would prevent air from the house being forced in the other direction. Other variations of this concept are also possible.
- the size of the relief vent 970 may be modified to suit the anticipated amount of volume of wind to be vented. Additionally, multiple relief vents 970 may be included within the resilient support 960 and spaced out around the window 950 to allow an adequate volume of air to escape during a wind event.
- Figs. 12A-12D illustrate another embodiment of a vent for storm windows.
- a storm window 980 having a panel 981 includes a series of openings or perforations 982 formed through the panel.
- the panel 981 is held in place in a groove formed by two retaining portions, 984, 986 in a section of resilient support 983, as described above.
- the retaining portions 984, 986 are sized differently; in particular, one of the retaining portions is longer than the other. In this configuration the longer retaining portion 986, operates as a one-way flap that opens when sufficient pressure builds behind it. Eventually the retaining portion 986 yields under the pressure, as illustrated in Fig.
- retaining portion 986 operating as a flap or valve
- additional or different valves or other structures could be used in conjunction with the perforations 982, or other perforations through the window 980.
- a magnetic or spring seal or specific one-way valve could allow pressure to escape from behind the window 980, then re-seal when the pressure subsides.
- retaining portion 984 is the same size as retaining portion 986.
- An additional pressure relief tab 988 is instead additionally coupled to the section of resilient support 983. Similar to the embodiment illustrated in Fig. 12C , when wind pressure builds behind the storm window 980, the pressure relief tab 988 yields to allow air to escape into the room through the perforation 982, as illustrated in Fig. 12E .
- Fig. 13 is a side view of a storm window 990, similar to the one described above with reference to Fig. 2 , which further includes a retention strap 992 structured to hold the storm window in place should all of the blowout control mechanism described herein fail and a wind event would otherwise cause the window to separate completely from a window frame 980.
- the strap 992 includes a connection mechanism 994, such as a snap, which connects to the window frame 980. Of course other connection types could be used, such as hook and loop, direct attachment, etc.
- the strap 992 includes a connection mechanism 996 that is connectable to the window 990.
- an installer would set a bottom of the storm window 990 into the bottom of the window frame, then attach the retention strap 992 to the window frame 980 as well as the storm window 990.
- the resilient support not specifically shown in Fig. 12 , has enough "give” such that the retention strap can pass between the material and the side of the window frame 980.
- similar retention mechanisms such as springs, etc. could be used to retain the storm window 990.
- a spring return force could also be used to partially support the storm window in the window frame 980.
- Figs. 14A-14D illustrate yet another venting system in a storm window that additionally provide an integrated removal mechanism.
- an outside window 1020 is mounted between a bottom window frame 1030 and top window frame 1032.
- a press-fit storm window 1060 is set in the window frame, providing storm window coverage for the outside window 1020.
- a channel, or hole 1062 through which a string, chain, or other flexible tether passes and is attached to a side of the window frame at an attachment 1044.
- two objects such as balls 1040, 1050.
- the balls 1040, 1050 have different weights, and the ball 1040, stationed between the outside window 1020 and the storm window 1060 is the heavier ball.
- the balls 1040, 1050 have the same or nearly the same weights.
- an amount of string or chain that is located between the outside window 1020 and storm window 1060 is longer than the amount of chain outside the storm window, and this difference in weight pulls the ball 1050 toward the window 1060 based on the weight of the chain.
- the window will appear as it does in Fig. 14A , meaning that the heavier ball 1040, due to gravitational force, pulls the string so that the lighter ball 1050 rests near or against the panel 1060, and specifically near the hole 1062.
- the wind pressure builds in the space between the outside window 1020 and storm window 1060. The wind pressure builds until it dislodges the lighter ball 1050 from its resting position, giving the wind an avenue to vent through the hole 1062, and into the room.
- Figs. 14C and 14D illustrate how the same system can be used in an easy removal system.
- the user pulls on the light ball 1050. This raises the heavy ball 1040 by virtue of the string being pulled through the hole 1062. Further pulling will eventually cause the heavy ball 1040 to contact the inside of the hole 1062, as illustrated in Fig. 14C . Further pulling on the light ball 1050 will cause the heavy ball 1040 to exert pressure on the inside surface of the storm window 1060, eventually dislodging the storm window from the window frame, as illustrated in Fig. 14D . From the position illustrated in Fig.
- the user can slip his or her hand into the window frame and detach the string at the attachment 1044 to complete the removal.
- the same system works to additionally retain the storm window 1060 from a complete blowout should the hole 1062 in the storm window be too small to sufficiently vent the wind pressure.
- Figs. 15A , 15B , and 15C illustrate a storm window integrated retention system.
- a storm window 1100 may be the same type of window described above, i.e., one structured to be press-fit into a window frame.
- this facet of the invention is applicable to other types of windows as well.
- the storm window 1100 includes a panel 1110, such as glazing or plastic, having a hole 1112 therethrough. Within the hole 1112 is a male portion of a snap, including a stud post 1120, which in turn is attached to a snap stud 1122.
- the strap 1130 is attached to the panel 1110 by first passing the stud post 1120 through a hole in the strap, then sandwiching the strap between the stud post 1120 and the snap stud 1122.
- the strap 1130 further includes a snap hole 1134 ( Fig. 15A ) through which the snap stud 1122 passes, so that a face surface of the strap 1130 (furthest away from the panel 1110) lies generally flat against the panel when installed, as illustrated in Fig. 15B .
- a pull tab 1132 may be integrated into the strap 1130, or may be attached separately as illustrated in Figs. 15A-15C .
- the pull tab 1132 is made of a different material than the strap 1130, and is attached to the strap by stitching. Of course other embodiments are possible.
- the pull tab 1132 is attached to the strap 1130 such that the pull tab extends away from the panel 1110, allowing the user to easily grab the pull tab.
- a retaining strap 1140 is attached to the window frame (not illustrated) supporting the storm window 1100.
- the retaining strap 1140 includes a snap cap 1142.
- the snap cap 1142 is securely fastened onto the stud 1122 supported by the storm window 1100, thereby keeping the storm window in place by the secure retaining strap 1140.
- the retention system is easily released and the storm window may be moved or completely removed.
- the user merely grabs the pull tab 1132 and pulls the tab away from the window 1100. Pulling on the pull tab 1132 causes the strap 1130 to lift away from the panel 1110, and the hole 1134 passes over the snap stud 1122 by virtue of the lifting.
- the strap 1130 then exerts pressure on the retaining strap 1140 ( Fig. 15C ), and, depending on the diameter of the hole 1134, on the stud cap 1142 as well. This outward pressure causes the snap cap 1142 to release from the snap stud 1122, thereby separating the window 1100 from the retention system.
- the strap 1130 is affixed to the panel 1110 by virtue of the snap post 1120 and other portions of the system. Because the strap 1130 is so attached to the window 1100, continued pulling on the pull tab 1132 allows the user to remove the window from the window frame, or at least dislodge the window far enough to gain access to the outside window, such as illustrated above. Then the user may open the outside window as if the storm window had not been put in place.
- the retention system allows for rapid egress out of the window by a person in need of exiting through the window that has the storm window mounted within the window frame.
- Figs. 16A, 16B, and 16C illustrate another embodiment 1310 of the invention including a soft-bulb portion 1320 integrated with a rigid panel carrier 1330.
- the soft-bulb portion 1320 is co-produced with the rigid panel carrier 1330 and bonds to the carrier during production.
- the soft-bulb portion 1320 may be formed around an already existing rigid panel carrier 1330.
- the soft-bulb portion 1320 may be bound to the rigid panel carrier 1330, or may be attached to the carrier by other means, such as glue, epoxy, sonic bonding, or other bonding methods.
- the soft bulb portion 1320 may include a tongue or other extension that may engage a receiving slot formed in the carrier 1330.
- the embodiment 1310 may also be made by forming the soft-bulb portion 1320 separately from the rigid panel carrier 1330, and later binding the soft-bulb portion 1320 and carrier 1330 together using techniques described above.
- the soft-bulb portion 1320 may optionally include one or more friction ribs 1322, 1324, the function of which is described above.
- the friction ribs may include different sized ribs 1322, 1324, such as illustrated in Fig. 16A , with the outer ribs 1324 being larger and taller than the smaller ribs 1322.
- central ribs 1324 may be larger than outer ribs 1322.
- Other rib shapes, sizes, and orientations may be used depending on implementation.
- the soft-bulb portion 1320 may be made of from foam, silicone, EPDM, or PVC, or derivatives, or any other material having the properties desired.
- the soft-bulb portion 1320 is made of vulcanized polypropylene rubber, and more particularly of ThermoPlastic Vulcanisate (TPV), and even more particularly TPV 35A, which is widely available.
- TPV ThermoPlastic Vulcanisate
- the soft-bulb portion 1320 may optionally include one or more relief grooves 1326 formed on an inside surface of material, as illustrated in Fig. 16A . These relief grooves 1326 cause the soft-bulb portion 1320 to deform more at the relief grooves than in other areas of the soft-bulb, as illustrated in Figs. 16B and 16C .
- the relief grooves 1326 serve to help maintain a relatively constant reformative force even when the soft-bulb portion 1320 is exposed to various amounts of compression. For example, the relief grooves 1326 reduces the rate at which pressure builds on the panel 1340 during times of thermal expansion, and moderates the rate at which pressure is relieved from the panel 1340 during times of thermal contraction.
- the rigid panel carrier 1330 is sized to accept a desired panel.
- the panel may commonly be glass or acrylic, or other panel having the desired properties, such as panels specifically selected for sound or light absorption.
- nubs 1432 sized and shaped to cradle the panel, such as a panel 1340 in Figs. 16B and 16C within the panel carrier 1330.
- the nubs 1332 may be made of the TPV 35A, or may be made of another material selected for its properties.
- the nubs 1332 are preferably comparatively soft and yieldable, so that they deform as the panel 1340 is inserted within the carrier 1330. As illustrated in Fig.
- the positioning of the panel within the carrier 1330 as held by the nubs 1332 may help support the panel 1340 when inserted into a windowframe 1450 ( Fig. 16B ), and especially when the shape of the windowframe causes the panel 1340 to remain in an orientation that is not aligned with the center groove of the carrier 1330, as illustrated in Fig. 16C . Further, the panel 1340 may shift within the carrier 1330 as the embodiment 1310 is inserted or removed from a windowframe.
- Figs. 17A, 17B, and 17C illustrate a similar embodiment 1410 that is similar in most respects to the embodiment 1310 of Figs. 16A, 16B, and 16C , except that a rigid panel carrier 1430 is sized to accept a panel 1440 that is larger than the panel 1340 of Figs. 16B and 16C , such as a double-thickness panel.
- the rigid carrier 1330, 1430 may be sized to accept a largest possible panel 1440, and also be structured to accept thickness-adjusting inserts placed in the rigid carrier to permit strong grip on thinner panels.
- any of the embodiments illustrated in Figs. 16A-16C and 17A-17C may be used in conjunction with any of the controlled blowout features described above. Further, any of the embodiments illustrated in Figs. 16A-16C and 17A-17C may be used on one or more edges, or portions of edges of a window, and the previously described embodiments, where the soft gasket material is used to further receive the panel it its groove, such as groove 107 of Fig. 1 , may be used on the remaining edges of the window. This is similar to the embodiment described with reference to Figs. 2 and 3 above, which described a rigid groove supporting the panel.
- the soft-bulb portions 1320, 1420 of the supports 1310, 1410 may take one of several cross-sectional shapes.
- the cross section of the bulb portion 103 of the material making the resilient support 110 is relatively circular, being formed from with an outer surface 102 around a center "hole".
- the cross section of the soft-bulb portions 1320, 1420 may take many shapes, as described below, and the "hole" may be partially or fully filled with additional resilient material, or another material, also as described above.
- Fig. 18A illustrates another embodiment of the invention including a soft-bulb portion 1801 and a carrier 1802.
- the soft-bulb portion 1801 and the carrier 1802 may be formed separately and then pressed, snapped, or otherwise mechanically coupled together to form an assembly, such as the assembly 1800 shown in Fig. 18A .
- Fig. 18B is an exploded view of the soft-bulb portion 1801 and the carrier 1802 before they are pressed together.
- Glue may be used in some particular embodiments to help affix the soft-bulb portion 1801 and the carrier 1802. In other embodiments, no glue is necessary to keep the soft-bulb portion 1801 and the carrier 1802 together, as described in more detail below.
- the soft-bulb portion 1801 and the carrier 1802 are preferably extruded components.
- Figs. 18A and 18B show end-view profiles of the soft-bulb portion 1801 and the carrier 1802, each of which may be elongated and extend to any length in a dimension perpendicular to the two-dimensional representations shown in Figs. 18A and 18B .
- the soft-bulb portion 1801 and the carrier 1802 preferably are each symmetric about a vertical centerline 1803.
- features shown or described for the right side of the vertical centerline preferably have corresponding, mirrored features on the left side of the vertical centerline, such as illustrated in Figs. 18A and 18B .
- the soft-bulb portion and the carrier may have a number of orientations during installation or use, and a feature that is vertical or horizontal in the figures may not have that same orientation in actual use.
- the soft-bulb portion 1801 such as illustrated in Figs. 18A and 18B , includes friction ribs 1804, a base section 1805, and a tongue 1806.
- the soft-bulb portion 1801 is generally circular or rounded in cross section, enclosing a central void. More preferably, the soft-bulb portion 1801 is generally dome- or egg-shaped.
- the soft-bulb portion 1801 may have the form of the bulbs shown in Figs. 1 , 7A , 16A , 17A , or 19A or any other appropriate bulb design.
- the void 1807 at the center of the soft-bulb portion 1801 may be empty except for air or another gas, or the void 1807 may be partially or fully filled with a resilient material.
- the soft-bulb portion 1801 is said to be "soft" because its shape is deformable or compressible, and not necessarily its material makeup, although either or both are possible.
- friction ribs 1804 The function of the friction ribs 1804 is as described above. Some friction ribs may be larger and taller than other friction ribs, such as described for Figs. 16A, 16B, and 16C . Other rib shapes, sizes, and orientations may be used depending on implementation.
- the base section 1805 includes angled faces 1808, horizontal faces 1809, internal corner grooves, or relief grooves, 1810, and outer corners 1811.
- the horizontal faces 1809 are generally perpendicular to the vertical centerline 1803 of the soft-bulb portion 1801.
- the horizontal faces 1809 have an inner end 1812 and an outer end 1813.
- the corner grooves 1810 may cause the soft-bulb portion 1801 to deform more at the corner grooves than in other areas of the soft-bulb portion.
- the function of the corner grooves 1810 may be as described above in Fig. 16A for the relief grooves 1326.
- the tongue 1806 extends from the base section 1805 of the soft-bulb portion 1801 and from the inner ends 1812 of the horizontal faces 1809.
- the tongue 1806 includes shoulders 1814 at a distal end 1815 of the tongue 1806.
- the shoulders 1814 are configured to engage, and perhaps interlock with, edges 1816 of the carrier 1802, as described more fully below.
- the tongue 1806 is symmetric about the vertical centerline 1803 of the soft-bulb portion 1801.
- the angled faces 1808 extend from the outer ends 1813 of the horizontal faces 1809 and at an angle 1817 to the horizontal faces 1809.
- the outer corners 1811 are at outer ends 1813 of the angled faces 1808.
- the soft-bulb portion 1801 may be made, for example, from foam, silicone, EPDM, or PVC.
- the soft-bulb portion is made from a resilient polymer, such as silicone. More preferably, the soft-bulb portion is made from silicone having a hardness of about 50 durometer and conforming to the ASTM 2000 standard classification as set forth by ASTM International.
- the soft-bulb portion 1801 has a side wall thickness 1818 of between about 0.25mm (0.010 inch) and about 2.79mm (0.110 inch). More preferably, the soft-bulb portion has a side wall thickness of between about 1.02mm (0.040 inch) and about 2.03mm (0.080 inch). Even more preferably, the soft-bulb portion has a side wall thickness of between 1.32mm (0.052 inch) and 1.73mm (0.068 inch).
- the top wall thickness 1819 of the soft-bulb portion may be greater than the side wall thickness 1818. For example, the top wall thickness may be about 15% to 35% greater than the side wall thickness. In one embodiment, the side wall thickness is approximately 1.52mm (0.060 inch) and the top wall thickness is approximately 1.91mm (0.075 inch).
- the soft-bulb portion 1801 has an overall width 1820 of between about 31.8mm (1.25 inch) and about 6.35mm (0.250 inch). More preferably, the soft-bulb portion has an overall width of between about 25.4mm (1.00 inch) and about 12.7mm (0.500 inch). Even more preferably, the soft-bulb portion has an overall width of between 18.1mm (0.711 inch) and 20.0mm (0.789 inch).
- the distance 1821 between the shoulders 1814 of the tongue 1806 and the horizontal faces 1809 is between about 5.72mm (0.225 inch) and about 3.175mm (0.125 inch). More preferably, the distance between the shoulders and the horizontal faces is between about 5.33mm (0.210 inch) and about 3.56mm (0.140 inch). Even more preferably, the distance between the shoulders and the horizontal faces is between 4.83mm (0.190 inch) and 4.06mm (0.160 inch).
- the width 1822 across the shoulders 1814 is between about 5.08mm (0.200 inch) and about 1.78mm (0.070 inch). More preferably, the width across the shoulders is between about 4.19mm (0.165 inch) and about 2.67mm (0.105 inch). Even more preferably, the width across the shoulders is between 3.94mm (0.155 inch) and 3.175mm (0.125 inch).
- the height 1823 between the horizontal faces 1809 and the top of an outer friction rib 1824 is between about 25.4mm (1.00 inch) and about 4.83mm (0.190 inch). More preferably, the height between the horizontal faces and the top of an outer friction rib is between about 22.2mm (0.875 inch) and about 7.24mm (0.285 inch). Even more preferably, the height between the horizontal faces and the top of an outer friction rib is between 15.6mm (0.614 inch) and 14.0mm (0.552 inch).
- the angle 1817 between the horizontal face and the angled face is between about 95 degrees and about 175 degrees. More preferably, the angle between the horizontal face and the angled face is between about 115 degrees and about 145 degrees. In one embodiment, the angle is about 130 degrees.
- the carrier 1802 such as illustrated in Figs. 18A and 18B , includes a carrier body 1825, nubs 1826, and stabilizers 1827.
- the nubs 1826 are generally as described above for Figs. 16A, 16B, and 16C .
- the nubs 1826 are sized, shaped, and configured to cradle a panel, such as the panel 1340 in Figs. 16B and 16C , within the carrier 1802.
- the nubs 1826 are comparatively soft and yieldable, relative to the panel and the carrier 1802, so that the nubs 1826 deform as the panel is inserted within a panel gap 1835 of the carrier 1802. While Figs. 18A and 18B do not show a panel, the panel inserts into the carrier 1802 generally as shown in Figs. 16B and 16C or, for a wider panel, as shown in Figs. 17B and 17C .
- the stabilizers 1827 are generally located on either side of the panel gap 1835 and protrude into the panel gap 1835.
- the stabilizers 1827 may provide lateral stability and alignment to the panel within the carrier 1802, and the stabilizers 1827 may help prevent dust and other contaminants from entering the panel gap 1835 when a panel is installed within the carrier 1802.
- the stabilizers may be made from thermoplastic polyurethane (TPU).
- the stabilizers 1827 may be configured to align the panel so that the panel is symmetric about the vertical centerline 1803 of the soft-bulb portion 1801 when the soft-bulb portion 1801 is assembled to the carrier 1802.
- the stabilizers 1827 may be configured to align the panel so that the panel is not symmetric about the vertical centerline 1803 of the soft-bulb portion 1801 when the soft-bulb portion 1801 is assembled to the carrier 1802.
- a panel that is not symmetric about the vertical centerline of the bulb may be useful when, for example, the window frame is bowed in or out so that it is not straight.
- the position and type of nub 1826 such as its material and thickness, may be altered to change the alignment of the soft-bulb portion 1801 with respect to the panel and allow the user to fill in gaps caused by a bowed window frame.
- the carrier body 1825 includes sloped faces 1828, top faces 1829, resilient prongs 1830, and a snap channel 1831.
- the sloped faces 1828 are configured to align with and contact the angled faces 1808 of the soft-bulb portion 1801 when the soft-bulb portion is assembled to the carrier 1802, such as shown in Fig. 18A .
- the slope of the sloped faces 1828 preferably matches or corresponds to the angle 1817 of the angled faces 1808.
- the top faces 1829 are configured to align with and contact the horizontal faces 1809 of the soft-bulb portion 1801 when the soft-bulb portion 1801 is assembled to the carrier 1802, such as shown in Fig. 18A .
- the resilient prongs 1830 extend into the snap channel 1831, and the distal end 1836 of each resilient prong 1830 includes an edge 1816.
- the width 1832 of the snap channel 1831 is between about 3.81mm (0.150 inch) and about 0.89mm (0.035 inch). More preferably, the width of the snap channel is between about 3.175mm (0.125 inch) and about 1.27mm (0.050 inch). Even more preferably, the width of the snap channel is between 2.54mm (0.100 inch) and 1.68mm (0.066 inch).
- the width 1833 of the carrier body 1825 is between about 22.9mm (0.900 inch) and about 5.08mm (0.200 inch). More preferably, the width of the carrier body is between about 19.1mm (0.750 inch) and about 8.89mm (0.350 inch). Even more preferably, the width of the carrier body is between 16.0mm (0.630 inch) and 14.4mm (0.568 inch).
- the overall height 1834 of the carrier body 1825 is between about 30.5mm (1.20 inch) and about 12.7mm (0.500 inch). More preferably, the overall height of the carrier body is between about 25.4mm (1.00 inch) and about 16.5mm (0.650 inch). Even more preferably, the overall height of the carrier body is between 21.7mm (0.856 inch) and 19.8mm (0.778 inch).
- the depth 1837 of the panel gap 1835 is between about 25.4mm (1.00 inch) and about 1.60mm (0.063 inch). More preferably, the depth of the panel gap is between about 19.1mm (0.750 inch) and about 2.54mm (0.100 inch). Even more preferably, the depth of the panel gap is between 9.53mm (0.375 inch) and 3.175mm (0.125 inch).
- the tongue 1806 may be inserted into the snap channel 1831 until the shoulders 1814 of the tongue 1806 abut the edges 1816 of the resilient prongs 1830.
- the resiliency of the prongs allow the edges 1816 of the prongs 1830 to diverge, or separate, enough for the shoulders 1814, which may be pliable, of the tongue 1806 to pass the edges 1816 of the resilient prongs 1830 during the insertion process.
- the resiliency of the prongs 1830 allows the edges 1816 of the prongs 1830 to converge again, thus causing the edges 1816 to engage with the shoulders 1814 of the tongue 1806, such as shown in Fig. 18A .
- the horizontal faces 1809 of the soft-bulb portion 1801 contact the top faces 1829 of the carrier 1802.
- the angled faces 1808 and the outer corners 1811 of the soft-bulb portion 1801 contact the sloped faces 1828 of the carrier 1802.
- the carrier 1802 is made from a polymer, such as a thermoplastic polymer.
- the polymer may be rigid or semi-rigid.
- the carrier body 1825 is made from acrylonitrile butadiene styrene (ABS), while the nubs 1826 and the stabilizers 1827 are made from thermoplastic polyurethane (TPU).
- ABS acrylonitrile butadiene styrene
- TPU thermoplastic polyurethane
- Fig. 19A illustrates another embodiment including a soft-bulb portion 1901 and a carrier 1902.
- the soft-bulb portion 1901 and the carrier 1902 may be formed separately and then pressed, snapped, or otherwise mechanically coupled together to form an assembly, such as the assembly 1900 shown in Fig. 19A .
- Fig. 19B is an exploded view of the soft-bulb portion 1901 and the carrier 1902 before they are pressed together.
- Glue may be used in some particular embodiments to help affix the soft-bulb portion 1901 and the carrier 1902. In other embodiments, no glue is necessary to keep the soft-bulb portion 1901 and the carrier 1902 together, as described in more detail below.
- the soft-bulb portion 1901 and the carrier 1902 are preferably extruded components.
- Figs. 19A and 19B show end-view profiles of the soft-bulb portion 1901 and the carrier 1902, each of which may be elongated and extend to any length in a dimension perpendicular to the two-dimensional representations shown in Figs. 19A and 19B .
- the soft-bulb portion 1901 and the carrier 1902 preferably are each symmetric about a vertical centerline 1903.
- the soft-bulb portion 1901 such as illustrated in Figs. 19A and 19B , includes a base section 1904 and tongues 1905.
- the base section 1904 includes a horizontal face 1906.
- the soft-bulb portion 1901 may include friction ribs having the shapes, sizes, and orientations as generally as described above.
- the soft-bulb portion 1901 may also include corner grooves, or relief grooves, such as those described above for Figs. 18A and 18B .
- the soft-bulb portion 1901 is generally circular or rounded in cross section, enclosing a central void. More preferably, the cross-sectional profile of the soft-bulb portion 1901 is generally in the shape of a domed or rounded pentagon, for example as shown in Figs. 19A and 19B , although other bulb profiles could be used.
- the soft-bulb portion 1801 may have the form of the bulbs shown in Figs. 1 , 7A , 16A , 17A , or 18A or any other appropriate bulb design.
- the side walls 1907 of the soft-bulb portion 1901 may collectively angle toward the vertical centerline 1903, such that top ends 1908 of the side walls 1907 are closer together than bottom ends 1909 of the side walls 1907.
- the angled side walls 1907 may allow the soft-bulb portion 1901 to deform first at a top section 1910 of the soft-bulb portion 1901 before the base section 1904, which may improve the lateral stability of the soft-bulb portion 1901 within the assembly 1900.
- a void 1911 at the center of the soft-bulb portion 1901 may be empty except for air or another gas, or the void 1911 may be partially or fully filled with a resilient material.
- Each of the tongues 1905 extends from the base section 1904 of the soft-bulb portion 1901.
- the tongues 1905 includes shoulders 1912 at distal ends 1913 of the tongues 1905.
- the shoulders 1912 are shaped and configured to engage, and perhaps interlock with, edges 1914 of the carrier 1902, such as described above for Figs. 18A and 18B .
- the tongues 1905 are collectively symmetric about the vertical centerline 1903 of the soft-bulb portion 1901. While the embodiment illustrated in Figs. 19A and 19B includes two tongues 1905, some embodiments have more than two tongues 1905.
- the soft-bulb portion 1901 may be made, for example, from foam, silicone, EPDM, or PVC.
- the soft-bulb portion is made from a resilient polymer, such as silicone. More preferably, the soft-bulb portion is made from silicone having a hardness of about 50 durometer and conforming to the ASTM 2000 standard classification as set forth by ASTM International.
- the carrier 1902 such as illustrated in Figs. 19A and 19B , includes a carrier body 1915. While not shown in Figs. 19A and 19B , the carrier 1902 may also include nubs and stabilizers, such as the nubs and stabilizers discussed above for Figs. 18A and 18B . As noted above, a panel inserts into the carrier 1902 generally as shown in Figs. 16B and 16C or, for a wider panel, as shown in Figs. 17B and 17C .
- the carrier body 1915 includes resilient prongs 1916, a top face 1917, snap channels 1918, and outer corners 1919.
- the top face 1917 is configured to align with and contact the horizontal face 1906 of the soft-bulb portion 1901 when the soft-bulb portion 1901 is assembled to the carrier 1902, such as shown in Fig. 18A .
- the resilient prongs 1916 extend into the snap channel 1918, and a distal end 1920 of each resilient prong 1916 includes an edge 1914.
- Each snap channel 1918 provides a passage between the resilient prongs 1916 for insertion of the tongue 1905 of the soft-bulb portion 1901.
- the carrier 1902 is made from a polymer, such as a thermoplastic polymer.
- the polymer may be rigid or semi-rigid.
- the carrier body 1915 is made from acrylonitrile butadiene styrene (ABS), while the nubs and the stabilizers are made from thermoplastic polyurethane (TPU).
- each of the tongues 1905 may be inserted into the respective snap channel 1918 until the shoulders 1912 of the tongue 1905 abut the edges 1914 of the resilient prongs 1916.
- the horizontal faces 1906 of the soft-bulb portion 1901 contact the top faces 1917 of the carrier 1902.
- the outer corners 1919 of the carrier 1902 contact the base section 1904 of the soft-bulb portion 1901.
- the relatively broad base section 1904 of the soft-bulb portion 1901 and the relatively wide top faces 1917 of the carrier 1902, as measured between the outer corners 1919 of the carrier 1902, may help increase lateral stability of the assembly 1900 in the event a non-vertical force is applied to the soft-bulb portion 1901 or the carrier 1902.
- Slip force is a measure of the lateral load that an assembly can withstand without slipping as measured at various amounts of bulb compression.
- a surface may be placed against the top of the soft-bulb portion 1901 of Fig. 19A , and the soft-bulb portion 1901 may be compressed to various amounts in a direction parallel to the vertical centerline 1903. Those various amounts may be, for example, increments of 1.59mm (1/16 of an inch).
- a force is applied to the soft-bulb portion 1901 and in a direction perpendicular to the vertical centerline 1903. The force may be expressed as force per unit length, such as per inch, of the soft-bulb portion 1901.
- the slip force metric should be sufficiently high enough to help prevent the secondary panel from dislodging from the window frame under typical conditions. For example, as noted above, when forceful winds blow from outside the window through air gaps in older windows, they may create significant pressure on the secondary window mounted inside. On the other hand, the slip force metric should be sufficiently low enough to help prevent the buildup of air pressure between the secondary panel and the existing window. As discussed above, that can also dislodge the secondary panel from dislodging from the window frame. Accordingly, it is preferred that the slip force changes relatively little as compression of the bulb increases.
- Secondary panel systems incorporating an assembly may have a slip force that increases less than 50% as the bulb compression increases from about 10% of overall bulb height to about 65% of overall bulb height.
- some conventional panel systems have a slip force that increases over 400% for the same compression interval.
- the push force is the force, per unit area, that it takes to dislodge a mounted secondary panel from a window frame. In other words, it is a measure of the resistance to air pressure acting, or pushing, on the panel.
- pull force is a measure of the effort it takes to dislodge the panel by pulling it, from a localized point on the panel, rather than pushing it.
- the pull force may quantify how difficult it would be for a user to intentionally dislodge the mounted panel from a window frame by pulling on the panel.
- the pull force and push force are generally determined relative to a frame depth, which is how deep into a window frame the panel, including the bulb and the carrier, is mounted.
- secondary panel systems incorporating an assembly such as the assembly 1900, may have a push force that is about 5.2 pounds per square foot and a pull force of about 10.5 pounds on a panel having an area of about 3.5 square feet.
- Fig. 20A illustrates another embodiment including a soft-bulb portion 2001, a carrier or frame 2002, and a snap bead or receiver 2003.
- the soft-bulb portion 2001, the carrier 2002, and the snap bead 2003 may be formed separately and then pressed or snapped together to form an assembly, such as the assembly 2000 shown in Fig. 20A .
- the carrier 2002 and the snap bead 2003 may be pressed or snapped together over a flexible sheet 2004, such as a plastic film or a screen.
- the assembly 2000 may serve as a frame or edging for a window screen.
- Fig. 20B is an exploded view of the soft-bulb portion 2001, the carrier 2002, and the snap bead 2003 before they are pressed together.
- the soft-bulb portion 2001, the carrier 2002, and the snap bead 2003 are preferably extruded components.
- Figs. 20A and 20B show end-view profiles of the soft-bulb portion 2001, the carrier 2002, and the snap bead 2003, each of which may be elongated extend to any length in a dimension perpendicular to the two-dimensional representations shown in Figs. 20A and 20B .
- the soft-bulb portion 2001 is generally as described above for Figs. 19A and 19B .
- the carrier 2002 includes resilient prongs, a top face, snap channels, and outer corners, such as described above for Figs. 19A and 19B .
- the soft-bulb portion 2001 may be connected to the carrier 2002 generally as described above for
- FIG. 19A and 19B Figs. 19A and 19B .
- the carrier 2002 includes an arm 2005 having a protrusion 2006.
- the arm 2005 may provide physical separation between the protrusion 2006 and the top face 2007 of the carrier 2002.
- the protrusion 2006 is configured to engage, and possibly interlock with, the snap bead 2003.
- the protrusion 2006 may have a rounded tip 2008, such as shown in Figs. 20A and 20B .
- the protrusion 2006 extends from the arm 2006 at a non-parallel angle.
- the protrusion may extend at a 45, 90, or 150 degree angle from the arm, although other angles are also feasible.
- the snap bead 2003 includes a gap 2009 and may include nubs, such as the nubs discussed above for Figs. 18A and 18B .
- the nubs may help position the protrusion 2006 and the screen 2004 within the gap 2009.
- the nubs are preferably comparatively soft and yieldable, so that they deform as the protrusion 2006 is inserted within the gap 2009.
- the gap 2009 is configured to accept the protrusion 2006 of the arm 2005 and to receive or pinch the screen 2004 between the protrusion 2006 and the snap bead 2003.
- the snap bead 2003 may be disengaged from, or pulled off of, the protrusion 2006.
- the carrier 2002 and the snap bead 2003 are each made from a polymer, such as a thermoplastic polymer.
- the polymer may be rigid or semi-rigid.
- the carrier and the snap bead are made from acrylonitrile butadiene styrene (ABS).
- Figs. 21A-21D illustrate an embodiment of the invention including a soft-bulb portion 2101 and a carrier 2102.
- the soft-bulb portion 2101 and the carrier 2102 may be formed separately and then mechanically coupled together to form an assembly, such as the assembly 2100 shown in Fig. 21A.
- Fig. 21B is an exploded view of the soft-bulb portion 2101 and the carrier 2102 before they are coupled together.
- Fig. 21C is an end view of the soft-bulb portion of Fig. 21A shown in isolation.
- Fig. 21D is an end view of the carrier of Fig. 21A shown in isolation.
- the soft-bulb portion 2101 and the carrier 2102 are preferably extruded components.
- Figs. 21A-21D show end-view profiles of the soft-bulb portion 2101 and the carrier 2102, each of which may be elongated and extend to any length in a dimension perpendicular to the two-dimensional representations shown in Figs. 21A-21D .
- the soft-bulb portion 2101 and the carrier 2102 preferably are each symmetric about a vertical centerline 2103.
- features shown or described for the right side of the vertical centerline preferably have corresponding, mirrored features on the left side of the vertical centerline, such as illustrated in Fig. 21A .
- the soft-bulb portion and the carrier may have a number of orientations during installation or use, and a feature that is vertical or horizontal in the figures may not have that same orientation in actual use. Additionally, laterally means in a direction substantially perpendicular to the vertical centerline 2103.
- the soft-bulb portion 2101 such as illustrated in Figs. 21A, 21B , and 21C , includes friction ribs 2104, a base section 2105, and a T-connector 2106, so called because it resembles an upside-down capital letter T.
- the soft-bulb portion 2101 is generally circular or rounded in cross section, enclosing a central void. More preferably, the soft-bulb portion 2101 is generally dome- or egg-shaped.
- the soft-bulb portion 2101 may have the form of the bulbs shown in Figs. 1 , 7A , 16A , 17A , 18A , or 19A , or any other appropriate bulb design.
- the void 2107 at the center of the soft-bulb portion 2101 may be empty except for air or another gas, or the void 2107 may be partially or fully filled with a resilient material.
- the soft-bulb portion 2101 is said to be "soft" because its shape is deformable or compressible, and not necessarily its material makeup, although either or both are possible.
- the function of the friction ribs 2104 is as described above for Figs. 9A-9C .
- Some friction ribs may be larger and taller than other friction ribs, such as described for Figs. 16A, 16B, and 16C .
- Other rib shapes, sizes, and orientations may be used depending on the implementation.
- the base section 2105 may include internal corner grooves, or relief grooves, 2108.
- the corner grooves 2108 may cause the soft-bulb portion 2101 to deform more at the corner grooves than in other areas of the soft-bulb portion.
- the function of the corner grooves 2108 may be as described above in Fig. 16A for the relief grooves 1326.
- the T-connector 2106 extends from the base section 2105 of the soft-bulb portion 2101.
- the T-connector 2106 is symmetric about the vertical centerline 2103 of the soft-bulb portion 2101.
- the T-connector 2106 may include an extension 2109 and a crosspiece 2110.
- the extension 2109 extends away from the base section 2105 and may include an aperture 2111.
- the aperture 2111 may have a generally rectangular cross-section, such as shown in Figs. 21A, 21B , and 21C .
- the aperture 2111 may have a generally oval or round cross-section. Other shapes may also be used depending on the implementation.
- a support rod 2112 may be inserted into the aperture 2111 to provide additional stiffness to the assembly 2100.
- the support rod 2112 may contact in interior edges 2118 of the aperture 2111.
- the support rod 2112 is made of metal.
- the support rod 2112 may have a cross-sectional profile that is, for example, round, oval, or rectangular. Other shapes may also be used depending on the implementation.
- the crosspiece 2110 is coupled to a distal end 2113 of the extension 2109. Shoulders 2114 of the crosspiece 2110 extend laterally away from the vertical centerline 2103 of the soft-bulb portion 2101. Accordingly, the shoulders 2114 protrude laterally beyond the extension, such as shown in Figs. 21A, 21B , and 21C .
- the angle 2142 between the base section 2105 and the extension 2109 is preferably less than about ninety degrees.
- the angle 2142 between the base section 2105 and the extension 2109 is preferably about ninety degrees. This interference fit provides a small spring force and allows the soft-bulb portion 2101 to grip the base section 2105 where the base section 2105 and the extension 2109 contact the carrier 2102.
- the soft-bulb portion 2101 may be made, for example, from foam, silicone, EPDM, or PVC.
- the soft-bulb portion is made from a resilient polymer, such as silicone. More preferably, the soft-bulb portion is made from silicone having a hardness between about 45 durometer and about 75 durometer. Even more preferably, the soft-bulb portion is made from silicone having a hardness of about 60 durometer.
- All or a portion of the T-connector 2106 may also be sprayed or otherwise coated with a clear, low friction coating.
- the bottom surface 2115, left-side surface 2116, and right-side surface 2117 of the crosspiece 2110 may include the clear, low friction coating.
- the soft-bulb portion 2101 has a side wall thickness 2119 of between about 0.25mm (0.010 inch) and about 2.79mm (0.110 inch). More preferably, the soft-bulb portion has a side wall thickness of between about 1.02mm (0.040 inch) and about 2.03mm (0.080 inch). Even more preferably, the soft-bulb portion has a side wall thickness of about 1.52mm (0.060 inch).
- the top wall thickness 2120 of the soft-bulb portion may be greater than the side wall thickness 2119. For example, the top wall thickness may be about 15% to 35% greater than the side wall thickness. In one embodiment, the side wall thickness is approximately 1.52mm (0.060 inch) and the top wall thickness is approximately 1.91mm (0.075 inch).
- the soft-bulb portion 2101 has an overall width 2121 of between about 31.8mm (1.25 inch) and about 6.35mm (0.250 inch). More preferably, the soft-bulb portion has an overall width of between about 25.4mm (1.00 inch) and about 12.7mm (0.500 inch). Even more preferably, the soft-bulb portion has an overall width of between 18.1mm (0.711 inch) and 20.0mm (0.789 inch).
- the lateral width 2122 between the shoulders 2114 is between about 20.3mm (0.800 inch) and about 4.06mm (0.160 inch). More preferably, the lateral width 2122 is between about 15.2mm (0.600 inch) and about 7.62mm (0.300 inch). Even more preferably, the lateral width 2122 is between 12.9mm (0.506 inch) and 11.3mm (0.444 inch).
- the lateral width 2123 of the aperture 2111 is between about 8.89mm (0.350 inch) and about 1.78mm (0.070 inch). More preferably, the lateral width 2123 is between about 7.11mm (0.280 inch) and about 3.56mm (0.140 inch). Even more preferably, the lateral width 2123 is between 5.84mm (0.230 inch) and 4.83mm (0.190 inch).
- the height 2124 of the aperture 2111 is between about 6.10mm (0.240 inch) and about 1.27mm (0.050 inch). More preferably, the height 2124 is between about 0.190 inch and about 2.54mm (0.100 inch). Even more preferably, the height 2124 is between 4.09mm (0.161 inch) and 3.28mm (0.129 inch).
- the distance 2125 between the bottom surface 2115 of the crosspiece 2110 and the upper surface of the crosspiece 2110 is between about 3.30mm (0.130 inch) and about 0.64mm (0.025 inch). More preferably, the distance 2125 is between about 2.79mm (0.110 inch) and about 1.27mm (0.050 inch). Even more preferably, the distance 2125 is between 2.39mm (0.094 inch) and 1.68mm (0.066 inch).
- the distance 2126 between the bottom surface 2115 of the crosspiece 2110 and the lower surface of the base section 2105 is between about 7.37mm (0.290 inch) and about 1.52mm (0.060 inch). More preferably, the distance 2126 is between about 5.84mm (0.230 inch) and about 2.79mm (0.110 inch). Even more preferably, the distance 2126 is between 4.95mm (0.195 inch) and 3.94mm (0.155 inch).
- the height 2127 of the void 2107 is between about 26.0mm (1.025 inch) and about 5.08mm (0.200 inch). More preferably, the height 2127 is between about 20.3mm (0.800 inch) and about 10.2mm (0.400 inch). Even more preferably, the height 2127 is between 16.4mm (0.646 inch) and 14.8mm (0.584 inch).
- the angle 2142 is between about 86 degrees and about 75 degrees. More preferably, the angle 2142 is between about 85 degrees and about 79 degrees. Even more preferably, the angle 2142 is between 80 degrees and 83 degrees.
- the carrier 2102 such as illustrated in Figs. 21A, 21B , and 21D , includes a carrier body 2128, nubs 2129, stabilizers 2130, and protuberances 2143.
- the nubs 2129 are generally as described above for Figs. 16A, 16B, and 16C .
- the nubs 2129 are sized, shaped, and configured to cradle a panel, such as the panel 1340 in Figs. 16B and 16C , within the carrier 2102.
- the nubs 2129 are comparatively soft and yieldable, relative to the panel and the carrier 2102, so that the nubs 2129 deform as the panel is inserted within a panel gap 2131 of the carrier 2102. While Fig. 21A does not show a panel, the panel inserts into the carrier 2102 generally as shown in Figs. 16B and 16C or, for a wider panel, as shown in Figs. 17B and 17C .
- the stabilizers 2130 are generally located on either side of the panel gap 2131 and protrude into the panel gap 2131.
- the stabilizers 2130 may provide lateral stability and alignment to the panel within the carrier 2102, and the stabilizers 2130 may help prevent dust and other contaminants from entering the panel gap 2131 when a panel is installed within the carrier 2102.
- the stabilizers may be made from thermoplastic polyurethane (TPU).
- the stabilizers 2130 may be configured to align the panel so that the panel is symmetric about the vertical centerline 2103 of the soft-bulb portion 2101 when the soft-bulb portion 2101 is assembled to the carrier 2102.
- the stabilizers 2130 may be configured to align the panel so that the panel is not symmetric about the vertical centerline 2103 of the soft-bulb portion 2101 when the soft-bulb portion 2101 is assembled to the carrier 2102.
- a panel that is not symmetric about the vertical centerline of the bulb may be useful when, for example, the window frame is bowed in or out so that it is not straight.
- the position and type of nub 2126 such as its material and thickness, may be altered to change the alignment of the soft-bulb portion 2101 with respect to the panel and allow the user to fill in gaps caused by a bowed window frame.
- the protuberances 2143 are configured to align the panel within the panel gap 2131 and to keep the panel from shifting within the panel gap 2131 when a panel is installed within the carrier 2102.
- the carrier body 2128 includes a receiving slot 2132 opposite the panel gap.
- the receiving slot 2132 has a neck 2133 that is laterally narrower than an interior cavity 2134 of the receiving slot 2132.
- the neck 2133 may be between about 15% and about 40% narrower than the interior cavity 2134.
- the carrier body 2128 may include steps 2135 that extend toward the vertical centerline 2103, forming the neck 2133 of the receiving slot 2132.
- the receiving slot 2132 is therefore configured to securely receive the crosspiece 2110 of the bulb 2101 and to confine the shoulders 2114 of the crosspiece 2110. Hence, during normal use the soft-bulb portion 2101 cannot be removed from the receiving slot 2132 through the neck 2133.
- the carrier 2102 is made from a polymer, such as a thermoplastic polymer.
- the polymer may be rigid or semi-rigid.
- the carrier body 2128 is made from acrylonitrile butadiene styrene (ABS), while the nubs 2129 and the stabilizers 2130 are made from thermoplastic polyurethane (TPU).
- ABS acrylonitrile butadiene styrene
- TPU thermoplastic polyurethane
- the length 2136 of the panel gap 2131 is between about 20.3mm (0.800 inch) and about 4.32mm (0.170 inch). More preferably, the length 2136 is between about 17.8mm (0.700 inch) and about 7.62mm (0.300 inch). Even more preferably, the length 2136 is between 13.5mm (0.531 inch) and 11.9mm (0.469 inch).
- the height 2137 of the receiving slot 2132 is between about 7.62mm (0.300 inch) and about 1.52mm (0.060 inch). More preferably, the height 2137 is between about 5.84mm (0.230 inch) and about 3.05mm (0.120 inch). Even more preferably, the height 2137 is between 4.95mm (0.195 inch) and 3.94mm (0.155 inch).
- the lateral width 2138 of the neck 2133 is between about 15.2mm (0.600 inch) and about 3.05mm (0.120 inch). More preferably, the width 2138 is between about 12.2mm (0.480 inch) and about 6.10mm (0.240 inch). Even more preferably, the width 2138 is between 9.75mm (0.384 inch) and 8.38mm (0.330 inch).
- the carrier 2102 may accommodate panels of different widths.
- the carrier 2102 may accommodate at least two panels, one being relatively thinner than the other.
- the thinner panel may have a thickness of about 3.00mm (0.118 inch), while the thicker panel may have a thickness of about 5.59mm (0.220 inch).
- the gap 2139 between the nubs 2129 is between about 8.76mm (0.345 inch) and about 1.78mm (0.070 inch). More preferably, the gap 2139 is between about 6.99mm (0.275 inch) and about 3.56mm (0.140 inch). Even more preferably, the gap 2139 is between 5.77mm (0.227 inch) and 4.75mm (0.187 inch). For the thinner panel, preferably the gap 2139 is between about 4.45mm (0.175 inch) and about 0.89mm (0.035 inch). More preferably, the gap 2139 is between about 3.56mm (0.140 inch) and about 1.78mm (0.070 inch). Even more preferably, the gap 2139 is between 3.07mm (0.121 inch) and 2.26mm (0.089 inch).
- the gap 2140 between the stabilizers 2130 is between about 7.62mm (0.300 inch) and about 1.52mm (0.060 inch). More preferably, the gap 2140 is between about 6.10mm (0.240 inch) and about 3.05mm (0.120 inch). Even more preferably, the gap 2140 is between 5.13mm (0.202 inch) and 4.12mm (0.162 inch). For the thinner panel, preferably the gap 2140 is between about 3.30mm (0.130 inch) and about 0.64mm (0.025 inch). More preferably, the gap 2140 is between about 2.54mm (0.100 inch) and about 1.27mm (0.050 inch). Even more preferably, the gap 2140 is between 2.39mm (0.094 inch) and 1.68mm (0.066 inch).
- the height 2141 of the interior cavity 2134 of the receiving slot 2132 is between about 4.06mm (0.160 inch) and about 0.76mm (0.030 inch). More preferably, the height 2141 is between about 3.175mm (0.125 inch) and about 1.52mm (0.060 inch). Even more preferably, the height 2141 is between 2.77mm (0.109 inch) and 2.06mm (0.081 inch).
- the T-connector 2106 of the soft-bulb portion 2101 may be inserted into the receiving slot 2132 of the carrier 2102 from an end of the carrier 2102, for example, by sliding the T-connector 2106 into the receiving slot 2132.
- the soft-bulb portion 2101 and the carrier 2102 are preferably elongated components.
- Figs. 21A-21D show end-views of the soft-bulb portion 2101 and the carrier 2102, each of which may extend to any length in a dimension perpendicular to the two-dimensional representations shown in Figs. 21A-21D .
- the T-connector 2106 may be slid out of the receiving slot 2132 from an end of the carrier 2102.
- the soft-bulb portion 2101 may be attached to the carrier 2102 without the use of glue or another adhesive to fix the bulb to the carrier.
- the assembly when made to the preferred dimensions, provides lateral stability by reducing or eliminating bulb roll when the assembly is pressed into a window frame.
- Fig. 22 illustrates another embodiment of the invention, including a soft-bulb portion 2201 and a carrier 2202.
- the soft-bulb portion 2201 may be the soft-bulb portion 2101 that is described above for Figs. 21A-21D .
- the carrier 2202 may also be generally as described above for the carrier 2102, except as noted here.
- the soft-bulb portion 2201 and the carrier 2202 may be formed separately and then mechanically coupled together to form an assembly 2200 as shown in Fig. 22 .
- the carrier 2202 such as illustrated in Fig. 22 , includes a carrier body 2203, nubs 2204, stabilizers 2205, a first protrusion 2206, and a second protrusion 2207.
- a support rod 2211 may be inserted into the soft-bulb portion 2201 to provide additional stiffness to the assembly 2200.
- the support rod 2211 may be the support rod 2112 that is described above for Figs. 21A-21D .
- the first protrusion 2206 and the second protrusion 2207 are configured to receive between them a portion, such as an edge, of a flexible sheet 2208 and a spline 2209.
- the flexible sheet 2208 such as a plastic film or a screen, is pinched between the spline 2209, the first protrusion 2206, and the second protrusion 2207 to securely attach the flexible sheet 2208 to the carrier 2202.
- the carrier 2202 is symmetrical about a vertical centerline 2210, such that there is the first protrusion 2206 and the second protrusion 2207 have corresponding, mirrored features on the left side of the vertical centerline 2210.
Description
- This disclosure relates generally to storm windows, and more particularly to a press fit storm window that may include a facility for controlling blowout events.
- Storm windows are generally mounted on the outside or inside of main windows of a home or business. They are oftentimes used in cold climates to reduce energy leakage from the windows, for instance, cold air leaking into a house through the main windows. Storm windows may be mounted externally or internally, and are generally made from glass, plastic, or other transparent material. In some instances storm windows may be translucent or opaque.
- A method of measuring efficiency of thermal insulation, which is the opposite of a rate of heat transfer, is R-Value. An R-value number indicates the relative resistance to heat flow, where a higher R-value has greater thermal efficiency. The R-value generally depends on the type and size of the insulation system being rated, for example the material selected, its size, thickness, and density. R-values of multi-layer systems equal the total of the individual layered systems.
- Many present-day storm window systems are difficult to install and remove. Generally present-day storm window systems are mechanically attached with mounting hardware to either the inside or outside of the main window. The windows may be heavy and difficult to manipulate. Other, less expensive systems use see-through plastic sheets that are taped or attached to window casings. Sometimes the plastic sheets may be "shrunk" using a heat gun which, when directed at the plastic sheet, causes the sheet to contract, making the sheet taught, and easier to see through. Such prior art systems are, similar to the mechanical systems as described above, difficult and time-consuming to install.
- Embodiments of the invention address these and other problems in the prior art.
- Document
US 2004/016099 discloses a seal attachment fixture and method for attaching a seal to an encapsulated gasket disposed on a work piece, for example, an automotive window assembly. - Document
US 2014/157696 discloses an airflow reduction system including an insulating panel assembly for sealing a window within a jamb, wherein the insulating panel assembly has a frame configured to fit within the jamb and a glazing panel in the frame coated with a low-emissivity or solar control coating or film. - Document
US 5 887 392 discloses a jambliner having a multi-part design including a sash-engaging member defining a track and a pair of retaining arms extending from the sash-engaging member defining a channel. - Document
DE 203 12 327 discloses a sealing profile for a refrigerator sliding cover. - Document
US 2015/376938 discloses a system for mounting a secondary panel within a window frame of an existing window. - Embodiments of the invention are set out in the appended claims.
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Fig. 1 is a side cutaway view of a portion of a storm window. -
Fig. 2 is a front view of the storm window ofFig. 1 . -
Fig. 3 is a diagram illustrating installation of the storm window ofFig. 1 inserted into a main window. -
Fig. 4 is a detailed view of a corner portion of the storm window ofFig. 1 . -
Fig. 5 is a detailed view illustrating installation of the storm window corner portion ofFig. 4 . -
Fig. 6A is a perspective view of a corner portion of a storm window. -
Fig. 6B is a front view of a corner portion of a storm window. -
Fig. 6C is an edge view of the corner portion ofFig. 6B . -
Figs. 7A, 7B ,7C, and 7D are top cross-sectional view of a various storm windows. -
Fig. 8A is a front view of a storm window according toFig. 7C or 7D mounted into a vertical window frame. -
Fig. 8B is a front view of a storm window according toFig. 7C or 7D mounted into a horizontal window frame. -
Figs. 9A, 9B, and 9C are cross-sectional diagrams of resilient support sections. -
Fig. 10 is a front view of a storm window illustrating choices made when determining a controlled blowout. -
Figs. 11A, 11B, and 11C are diagrams illustrating a venting system in a storm window. -
Figs. 12A ,12B, 12C, 12D, and 12E are diagrams illustrating another venting system in a storm window. -
Fig. 13 is side view of a storm window retention mechanism. -
Figs. 14A, 14B ,14C, and 14D are diagrams illustrating yet another venting system in a storm window that additionally provide an integrated removal mechanism. -
Figs. 15A ,15B , and15C are diagrams illustrating a retaining system. -
Figs. 16A, 16B, and 16C are side cutaway views of a portion of a storm window. -
Figs. 17A, 17B, and 17C are side cutaway views of a portion of a storm window. -
Fig. 18A is an end view of a portion of a system for mounting a secondary panel within a window frame of an existing window. -
Fig. 18B is an exploded view of the portion shown inFig. 18A . -
Fig. 19A is an end view of a portion of a system for mounting a secondary panel within a window frame of an existing window. -
Fig. 19B is an exploded view of the portion shown inFig. 19A . -
Fig. 20A is an end view of a portion of a system for mounting a flexible sheet within a window frame of an existing window. -
Fig. 20B is an exploded view of the portion shown inFig. 20A . -
Fig. 21A is an end view of a portion of a system for mounting a secondary panel within a window frame of an existing window, according to embodiments of the invention.Fig. 21B is an exploded view of the portion shown inFig. 21A , but excluding the support rod shown inFig. 21A .Fig. 21C is an end view of the soft-bulb portion ofFig. 21A , shown in isolation.Fig. 21D is an end view of the carrier ofFig. 21A , shown in isolation. -
Fig. 22 is an end view of a portion of a system for mounting a flexible sheet or screen within a window frame of an existing window, according to embodiments of the invention. - Embodiments of the invention are directed to storm windows that may be easily and readily installed in a window frame of an existing window. A transparent portion of the window is generally see-through and may be made from glass, plastic, such as PLEXIGLASS, or other clear, generally rigid material. In other embodiments the window may be translucent, patterned, or opaque. A resilient material forming a resilient support surrounds the edges of the transparent portion, at least in part, such that, when the resilient material is compressed smaller than its natural state, it provides a "righting" or reformation force between the window frame and the transparent portion of the storm window. This reformation force of the resilient material puts pressure both on the window frame and the edge of the storm window and frictionally holds the storm window in place without the need for mounting hardware. The storm window may also include features for keeping it in place should outside forces act on the storm window system, such as a strong wind leaking through the main window, as described below.
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Fig. 1 is a side cutaway view of a portion of a storm window. Apanel 130 is a rigid, transparent panel which serves as the "window" portion of the storm window. As described above, thepanel 130 may be made from glass, plastic, such as PLEXIGLASS, or other suitable material. The thickness of thepanel 130 is generally thin, such as 3.175 mm (1/8"), but other thickness panels may be used as well. In some embodiments thepanel 130 may include decorative features, such as patterned translucent portions seen in privacy rooms, such as bathrooms. Other decorative features may include stained glass or material that appears to be stained glass. Still other decorative features may include decorative grill work such as iron grill work or material that appears to be such decorative grill work. In other embodiments the panel could be made of metal or wood. Although these embodiments would obviously not be transparent, such storm "windows" or coverings could be used for inside demolition operations where an easily insertable and removable window covering would be beneficial to protect the underlying window. Additionally, if light, sound, or thermal blocking properties were desired, the panel could be selected from an appropriate material without deviating from the scope of the invention. - A
resilient support 110 generally includes abulb portion 103 and agroove portion 107, and is positioned to generally surround at least a portion of the edge of thepanel 130. In one embodiment, theresilient support 110 is mechanically held fast to thepanel 130 by the "groove" 107 made from space between retainingportions portions panel 130, thereby keeping theresilient support 110 in place and from moving relative to the panel. In other embodiments an adhesive may facilitate anchoring theresilient support 110 to thepanel 130, at least in some portions of their contact. The retainingportions panel 130 surfaces. In one embodiment the retainingportions panel 130. The width of thegroove 107 is generally sized to exactly match the thickness of thepanel 130, but may be slightly smaller or larger depending on the installation. In some embodiments adhesives could be used to adhere or attach the panel to theresilient support 110, with or without requiring the retainingportions - The bulb portion of the
resilient support 110 may take one of several cross-sectional shapes. InFig. 1 , the cross section of thebulb portion 103 of the material making theresilient support 110 is circular, being formed from anouter surface 102 of thesupport 110 and a center "hole," the surface of which is indicated at 104. The cross section of thebulb portion 103 may take many shapes, as described below, and the "hole" may be partially or fully filled with additional resilient material, or another material, also as described in detail below. - The
resilient support 110, as described above, is formed of a yieldable material that deflects or deforms under pressure and, based on its shape and material selection, provides a return reformation force, i.e., the force that the material exerts on the contact point or points of the object causing its deformation. As theresilient support 110 is further deformed, for instance pressing on the material of the support with a finger, the reformation force increases relative to the amount of deformation. In reverse, as the deformation force is reduced, the material of theresilient support 110 produces less and less reformation force until the material returns to its "natural," undeformed state, at which point the reformation force is zero. - In some embodiments the
resilient support 110 is a single, uniform material, such as foam. In other embodiments theresilient support 110 is made from a combination of materials, such as a silicone cover or shell filled with a foam insert. The foam insert may be solid or may further include a cross sectional hole similar to the hole illustrated inFig. 1 . Other materials may also be introduced into the hole, whether or not covered by a silicone shell, such as metal, foam or plastic, shaped in various shapes, all of which together provide theresilient support 110 with the desired reformation force. - Embodiments of the invention may be produced from a large variety in materials, in various shapes and sizes. For instance the
resilient support 110, as described above, may be made from foam, silicone, EPDM, or PVC, or derivatives, or any other material having the properties desired. Additionally, as mentioned above, the cross-sectional shape of the resilient material forming theresilient support 110 can be selected for the desired properties of the storm window. For instance the bulb of theresilient support 110 may be circular, oval, spiral, elliptical, square, triangular, or may have an "open" shape, such as L, U, V, or C. In either case, if there is a hole, such as the one illustrated at 104 ofFig. 1 , another material or set of materials may fully or partially fill the hole to provide desired qualities of reformative force, resiliency, compression set (or compression memory), etc. Further, it may be the case that the materials used in the herein-described storm windows are subjected to large temperature variations and therefore should be selected to withstand the expected conditions, or to have their use limited only to conditions where the material properties will be satisfactory. Finally, because the storm windows will generally be exposed to the sun, they should be resistant to radiation, such as UV radiation. -
Fig. 2 is a front view of astorm window 200. Thestorm window 200 includes apanel 230 surrounded bysections resilient support 110 described above with reference toFig. 1 . Individual sections of the resilient material may join with mitered corner joints, such as illustrated at 216, 218, or they may join with butt joints, as illustrated at 222, 224. Corner joints 216, 218 andbutt joints bottom section 220 may be formed of a different material than theother sections window 200, or based on other reasons. In one embodiment thebottom section 220 is formed of a rigid or semi-rigid material, such as aluminum, to stiffen thepanel 230 and to prevent "droop". In other embodiments any of thesections Fig. 2 , as it is the most common window shape, embodiments can have storm windows of any shape. -
Fig. 3 is a diagram illustrating installation of thestorm window 200 ofFig. 2 inserted into a main window 00. In installation, thestorm window 200 is gently or forcefully inserted into aframe 380 of themain window 300. The size of thestorm window 200 is selected such that the overall dimensions of thepanel 230 plus thesections frame 380 of the main window. Then, as the storm window is inserted, thesections Fig. 1 ) making up thesections resilient material 110 is deformed, it produces the reformation force described above, between the edges of thepanel 230 and theframe 380 of themain window 300. This reformation force, in conjunction with the frictional forces where theresilient support 110 meets theframe 380, keeps thestorm window 200 in place. As described above, theresilient support 110 keeps thepanel 230 in place by virtue of the groove 107 (Fig. 1 ). -
Figs. 4 and5 show additional detail of a corner section of astorm window 400, both before (Fig. 4 ) and during (Fig. 5 ) installation into aframe 580. -
Fig. 6A is a perspective view of a corner portion of a storm window. In this embodiment asilicone cover nipple sections sections nipple portion silicon cover sections Fig. 6A are simply sections of the support having a diameter that matches the inside diameters of thesilicone cover groove 617 is formed between retainingportions Fig. 6A ). Thecover pieces corner 619. - Further detail of the corner is illustrated in
Figs. 6A and 6B . In particular, acorner piece 637 may be formed of multiple pieces, such as inFig. 6A , or may be made in a single-constructed piece. Thecorner piece 637 may include a "fin" 641, formed of a relatively thin piece of material, which may be the same or different material used to make thecorner piece 637. Thefin 641 is generally yieldable and more easily deformed than thecorner piece 637 itself. Thefin 641 may further include anotch 643, which allows thefin 641 to better deform in a corner of a window frame (not illustrated). In other words, without thenotch 643, thefin 641 may "pucker," due to excess material, if placed into a tight corner. In embodiments that include thenotch 643, less or no puckering occurs. - Also with respect to
Fig. 6B , a curved corner is illustrated (excluding the fin 641) rather than a corner having straight lines. This feature of the design was included because, in many installations, the resilient material tends to bunch up and "buckle" in corners, due to so much material being present. Embodiments of the invention have sought to minimize the amount of material in the corners in a number of ways, such as the rounded corners as illustrated. In other embodiments the corner pieces do not form a 45 degree angle when not installed, and instead are separated by a pie-shaped gap between areas where the horizontal resilient material meets the vertical resilient material before being installed. When installed, the resilient material compresses to fill the corner with a minimum amount, or even no amount of gaps between the resilient material and the window frame. - With respect to dimensions illustrated in
Fig. 6B , dimension "a" may extend from approximately 6.35mm (1/4 inch) to 76.2mm (3 inch), dimensions "b" and "c" may be 1.59mm (1/16")- 102mm (4") depending on the installation, dimension "d" may be 8.47mm (1/3")- 114mm (4.5") and dimension "e" may be 3.175mm (1/8")- 50.8mm (2") again, depending on the size and material selection making thecorner piece 637. These dimensions may vary from 10-500% depending on the particular details. - As described above, to install the storm window, first the storm window is sized according to the dimensions of the window frame in which the storm window is being installed. Next the storm window is inserted into the window frame in which a deformable, resilient material of the support is compressed during the insertion. After being placed and set in the window frame, the resilient material of the support exerts a reformation force between the window frame and the resilient support of the storm window. This reformation force coupled with frictional forces between the resilient support and the window frame, and to an extent, to the friction forces holding the panel in place by the resilient support, holds the storm window securely in place.
- Although the above method works well for many windows, there are situations when outside forces can overcome the frictional and reformation forces of such a storm window set in a window frame. For instance, older windows were generally manufactured with much larger size tolerances and, combined with years or decades of use, may therefore include large air gaps. When forceful winds blow from outside the window through such air gaps they may create significant pressure on the storm window mounted inside, which generally forms an air-tight seal by virtue of its ring of resilient material of the support. Other actions can also cause pressure on the storm window, such as airflow caused by other windows in the home opening or closing, pressurizations or depressurizations due to airflow such as HVAC, or other motion due to humans or earthquakes, for example. As a result, the storm window may become unseated from the window frame. When the wind forces are light, the storm window may simply re-position itself within the window frame. When wind forces are strong, however, the storm window may be blown completely out of the window frame, which could fall into the house and cause damage or injury. In any event, if the storm window is unseated by wind or other forces, it is generally no longer seated correctly in the window, such that wind may enter the house, which may significantly reduce the insulation value of the storm window.
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Fig. 7A is a top cross-sectional view of astorm window 700 described above. For example, apanel 706 is held in place by sideresilient support sections panel 706 is omitted. Other than to note that thepanel 706 is planar, description of thestorm window 700 is omitted for brevity, and can be found above. -
Fig. 7B is a top cross-sectional view of astorm window 710 that in many respects is identical to thestorm window 700 ofFig. 7A . Importantly, apanel 716 in thestorm window 710 is formed with a pre-determined curve along its entire the top edge. The bottom edge (not illustrated) may be similarly curved, which gives thepanel 716, overall, a partial-cylinder shape, and thereby creating a relatively stiff construction of the panel. Such apanel 716 is very resistant to bending, under force, across its vertical axis, while it would be more inclined to deflect across its horizontal axis. Using the bended shape of thepanel 716 in a storm window such as described above generally creates a more rigid, stronger constructed window that may be able to withstand more force with less material than a conventional storm window having a flat panel, such as thepanel 706 described inFig. 7A . Of course, in other situations it may be preferable that, instead of having a curve along the top and bottom edges, that the curve instead be made across side edges, giving a partial-cylinder shape and resistance to bending across its horizontal axis. -
Fig. 7C is a top cross-sectional view of a storm window 720, which is similar to thestorm window 710 described above. Different from thestorm window 710, the storm window 720 is constructed of a panel having a generallystraight portion 726 and a generallycurved portion 727. Similarly,Fig. 7D is a top cross-sectional view of a storm window 730 that includes two curved portions, 735, 737, curved in opposite directions, and having a relativelystraight portion 736 therebetween. Various uses of storm windows having curved sections are described below with reference toFigs. 8A and 8B . - With respect to all of the illustrations 7A, 7B, 7C, and 7D, what is referred to as "top" may as well be referred to as "side," depending on which orientation the storm window is inserted into the window frame, as described in detail below.
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Fig. 8A is a front view of astorm window 820 having two curve points, 822 and 824. The curve points 822, 824 are similar to the areas of curvature illustrated with reference toFig. 7D above. Thestorm window 820 is illustrated as being mounted within awindow frame 840, and being held in place byresilient sections storm window 820 marked by the curve points 822 and 824 are in opposite directions, though not illustrated inFig. 8A . The portion of the panel above thecurve point 824, near the top of thewindow frame 840, is curved inward, toward the inside of a house Similarly, the portion of the panel below thecurve point 822 is curved outward, toward the outside of the house. - Such a construction and installation of the
storm window 820 ofFig. 8A within thewindow frame 840 provides a number of advantages, the most important of which is a controlled blowout feature. When wind pressure builds from outside the window and presses through the outside window to apply pressure to thestorm window 820, the storm window is mostly likely to release pressure by the top portion of thewindow 820 moving toward the inside of the house, while the bottom portion and side portions remain relatively stationary. This happens because the curvature of the panel along the horizontal dimension, at the curve points 822, 824, stiffens the panel of thestorm window 820 along its horizontal plane. At the same time, the vertical dimension has no additional stiffening measures, therefore, under a force from blowing wind, it is more likely that either the top orbottom edges Fig. 8A fails before the side edges 830, 834. Recall, however, that the portion of thepanel 820 above thecurve point 824 is already curved inward, toward the house, while the portion of the panel below the curve point 826 is curved outward. This configuration makes thetop edge 836 of thestorm window 820 more likely to move under pressure than thebottom edge 832. It is desirable to force a top edge of a storm window to release before the bottom edge of a window for a number of reasons. First, many people store household items along the bottom edge of a window because the bottom window frame generally provides a flat, wide, horizontal surface. Encouraging the bottom portion of a storm window to release before a top portion could cause the storm window to knock such items from the window frame ledge and cause damage to the items or force the homeowner to reposition the items on the ledge. Conversely, the top edge of a window frame provides no such ledge for household items and it would be unlikely that a controlled release at the top edge would cause damage. -
Fig. 8B is similar in many respects toFig. 8A , however the window in thewindow frame 870 covered bystorm window 850 is a horizontal window, rather than a vertical window inFig. 8A . In such an installation thestorm window 850 may include only onecurve point 852 or two curve points 852, 854. Differently from the vertical installation referred to inFig. 8A , if thestorm window 850 ofFig. 8B , includes both curve points 852, 854, both of the sections of the storm window beyond the curve points may bend inward toward the house. Regardless of the number and direction of curve points of the windows illustrated inFigs. 8A and 8B , the windows can be installed in either a horizontal or vertical orientation. -
Fig. 9A illustrates another system for pre-disposing one or more portions of a storm window to release from its set position in a window frame before other portions. Similar to the resilient support illustrated inFig. 1 , aresilient support section 910 includes abulb portion 903 and agroove portion 907. Differently, though, in this embodiment is that theresilient support section 910 includes a series offriction ribs 911 coupled to thebulb portion 903. Thefriction ribs 911 may be made from the same material as theresilient support section 910 or may be made from another material. If made from another material, thefriction ribs 911 are attached to theresilient support section 910 by appropriate methods, such as adhesive or thermal welding. - The
friction ribs 911 may be designed so that they provide more frictional force in one direction than another. For instance, with reference toFig. 9B , it is easier to insert the resilient support section into the window frame, such as during installation, than removing it from the window frame, such as during a wind event. This increased frictional force is due to the shape and positioning of thefriction ribs 911. In some embodiments thefriction ribs 911 may be relatively long and thin, or, with reference toFig. 9C , thefriction ribs 912 may be relatively large and relatively "chunky". In either case theribs resilient support section 910. This angling, along with the physical structure of theribs resilient support section 910. Other designs of friction ribs are described below with reference toFigs. 16A-16C . - Instead of adding friction ribs to the resilient material making up the support, there are other methods of varying the force at which the resilient support holds a section of storm window in place. For instance, recall from above that the bulb portion of a resilient support section, for example the
bulb portion 103 inFig. 1 can take any shape, and need not be circular in cross section. Further recall that the hole illustrated inFig. 1 may be filled with material that may change the reformation force of the resilient support sections. Changes in shape, thickness, material selection and the presence or absence of holes, for instance, in the resilient support can change the reformation force of the resilient support when it is holding a storm window in place. - Therefore, selection and control of the properties that affect how much restoration force is being applied by the resilient support in the installed storm window can be used to control how the storm window performs during a wind event. For instance, the hole in the resilient support on the sides of a storm window installation may be filled with a material that has more restorative force than that the material filling the hole in the resilient support attached to the top and bottom of the storm window. In effect, then, the sides of such a storm window are held more firmly to the window frame than the top and bottom. In such a system, during a wind event, the top or bottom are more likely to release than either side, thereby giving a system of controlled blowout. A similar system is illustrated in
Fig. 10 , in which thetop portion 948 of astorm window 930 has a lower resilient force when installed in a window frame than thebottom portion 944 orside portions - Similar considerations can be made in other embodiments. For example, a resilient
support having ribs Figs. 9A or 9B may be employed in only those portions of the storm window where extra friction is desired. In such a system, the resilient support that does not include such friction enhancing measures will likely be the first to release in a wind event. In yet another embodiment, the size of the panel itself may be chosen relative to how strongly different portions of the storm window are desired to be held in a window frame. For instance, the width of the storm window, as a percentage of a size of the main window, may be different than the percentage size of the height of the main window. When installed, the resilient support along the sides of such a storm window will be compressed more than the top or bottom, and the resulting storm window will be more strongly held along the sides than at the bottom or top. -
Fig. 11A illustrates arelief vent 970 through an area of aresilient support 960 in astorm window 950. Details are illustrated inFig. 11B and 11C. Fig. 11B is a side cross sectional view of theresilient support 960 ofFig. 11A . Arelief vent hole 972 may be laser drilled or otherwise formed through the material making up the resilient support, providing a portal through which air pressure could pass from one side of theresilient support 960, for instance the side facing the main window, into the room. Of course the relief vent hole would have to be sized such that they provide such an air passage even when theresilient support 960 is compressed. An optional one-way flap 974 would prevent air from the house being forced in the other direction. Other variations of this concept are also possible. The size of therelief vent 970 may be modified to suit the anticipated amount of volume of wind to be vented. Additionally,multiple relief vents 970 may be included within theresilient support 960 and spaced out around thewindow 950 to allow an adequate volume of air to escape during a wind event. -
Figs. 12A-12D illustrate another embodiment of a vent for storm windows. In these figures, astorm window 980 having apanel 981 includes a series of openings orperforations 982 formed through the panel. As illustrated onFig. 12B , thepanel 981 is held in place in a groove formed by two retaining portions, 984, 986 in a section ofresilient support 983, as described above. In this embodiment, however, the retainingportions portion 986, operates as a one-way flap that opens when sufficient pressure builds behind it. Eventually the retainingportion 986 yields under the pressure, as illustrated inFig. 12C , and the air pressure, i.e., wind, vents through theperforation 982 and past the retainingportion 986 into the open room. Although this embodiment is illustrated with a retainingportion 986 operating as a flap or valve, additional or different valves or other structures could be used in conjunction with theperforations 982, or other perforations through thewindow 980. For instance, a magnetic or spring seal or specific one-way valve could allow pressure to escape from behind thewindow 980, then re-seal when the pressure subsides. A similar concept is illustrated inFig. 12D , except that, instead of differently sized retaining portions, as in the illustrated embodiments above, retainingportion 984 is the same size as retainingportion 986. An additionalpressure relief tab 988 is instead additionally coupled to the section ofresilient support 983. Similar to the embodiment illustrated inFig. 12C , when wind pressure builds behind thestorm window 980, thepressure relief tab 988 yields to allow air to escape into the room through theperforation 982, as illustrated inFig. 12E . -
Fig. 13 is a side view of astorm window 990, similar to the one described above with reference toFig. 2 , which further includes aretention strap 992 structured to hold the storm window in place should all of the blowout control mechanism described herein fail and a wind event would otherwise cause the window to separate completely from awindow frame 980. In this figure thestrap 992 includes a connection mechanism 994, such as a snap, which connects to thewindow frame 980. Of course other connection types could be used, such as hook and loop, direct attachment, etc. Similarly thestrap 992 includes aconnection mechanism 996 that is connectable to thewindow 990. In practice an installer would set a bottom of thestorm window 990 into the bottom of the window frame, then attach theretention strap 992 to thewindow frame 980 as well as thestorm window 990. The resilient support, not specifically shown inFig. 12 , has enough "give" such that the retention strap can pass between the material and the side of thewindow frame 980. Of course similar retention mechanisms such as springs, etc. could be used to retain thestorm window 990. In the case of a spring retention device, a spring return force could also be used to partially support the storm window in thewindow frame 980. -
Figs. 14A-14D illustrate yet another venting system in a storm window that additionally provide an integrated removal mechanism. InFig. 14A , an outside window 1020 is mounted between abottom window frame 1030 and top window frame 1032. A press-fit storm window 1060 is set in the window frame, providing storm window coverage for the outside window 1020. - Within the panel or glazing of the storm window 1060 is a channel, or
hole 1062, through which a string, chain, or other flexible tether passes and is attached to a side of the window frame at anattachment 1044. Coupled to the string are two objects, such asballs 1040, 1050. In some embodiments theballs 1040, 1050 have different weights, and theball 1040, stationed between the outside window 1020 and the storm window 1060 is the heavier ball. In other embodiments theballs 1040, 1050 have the same or nearly the same weights. In some embodiments an amount of string or chain that is located between the outside window 1020 and storm window 1060 is longer than the amount of chain outside the storm window, and this difference in weight pulls the ball 1050 toward the window 1060 based on the weight of the chain. - During the majority of time, the window will appear as it does in
Fig. 14A , meaning that theheavier ball 1040, due to gravitational force, pulls the string so that the lighter ball 1050 rests near or against the panel 1060, and specifically near thehole 1062. During a wind event, as illustrated inFig. 14B , the wind pressure builds in the space between the outside window 1020 and storm window 1060. The wind pressure builds until it dislodges the lighter ball 1050 from its resting position, giving the wind an avenue to vent through thehole 1062, and into the room. -
Figs. 14C and 14D illustrate how the same system can be used in an easy removal system. When a user wishes to remove the storm window 1060 from thewindow frame 1030, the user pulls on the light ball 1050. This raises theheavy ball 1040 by virtue of the string being pulled through thehole 1062. Further pulling will eventually cause theheavy ball 1040 to contact the inside of thehole 1062, as illustrated inFig. 14C . Further pulling on the light ball 1050 will cause theheavy ball 1040 to exert pressure on the inside surface of the storm window 1060, eventually dislodging the storm window from the window frame, as illustrated inFig. 14D . From the position illustrated inFig. 14D , the user can slip his or her hand into the window frame and detach the string at theattachment 1044 to complete the removal. In an especially large wind event, the same system works to additionally retain the storm window 1060 from a complete blowout should thehole 1062 in the storm window be too small to sufficiently vent the wind pressure. -
Figs. 15A ,15B , and15C illustrate a storm window integrated retention system. In these illustrations, astorm window 1100 may be the same type of window described above, i.e., one structured to be press-fit into a window frame. Of course, this facet of the invention is applicable to other types of windows as well. - The
storm window 1100 includes apanel 1110, such as glazing or plastic, having ahole 1112 therethrough. Within thehole 1112 is a male portion of a snap, including astud post 1120, which in turn is attached to asnap stud 1122. Thestrap 1130 is attached to thepanel 1110 by first passing thestud post 1120 through a hole in the strap, then sandwiching the strap between thestud post 1120 and thesnap stud 1122. - The
strap 1130 further includes a snap hole 1134 (Fig. 15A ) through which thesnap stud 1122 passes, so that a face surface of the strap 1130 (furthest away from the panel 1110) lies generally flat against the panel when installed, as illustrated inFig. 15B . Apull tab 1132 may be integrated into thestrap 1130, or may be attached separately as illustrated inFigs. 15A-15C . In the illustrated example thepull tab 1132 is made of a different material than thestrap 1130, and is attached to the strap by stitching. Of course other embodiments are possible. In a preferred embodiment thepull tab 1132 is attached to thestrap 1130 such that the pull tab extends away from thepanel 1110, allowing the user to easily grab the pull tab. - As illustrated in
Fig. 15C , a retainingstrap 1140 is attached to the window frame (not illustrated) supporting thestorm window 1100. The retainingstrap 1140 includes asnap cap 1142. When the retention system is installed, thesnap cap 1142 is securely fastened onto thestud 1122 supported by thestorm window 1100, thereby keeping the storm window in place by thesecure retaining strap 1140. - If there is a need to remove the
storm window 1100, for example during an emergency when rapid egress is required, the retention system is easily released and the storm window may be moved or completely removed. Specifically, in operation, the user merely grabs thepull tab 1132 and pulls the tab away from thewindow 1100. Pulling on thepull tab 1132 causes thestrap 1130 to lift away from thepanel 1110, and thehole 1134 passes over thesnap stud 1122 by virtue of the lifting. Thestrap 1130 then exerts pressure on the retaining strap 1140 (Fig. 15C ), and, depending on the diameter of thehole 1134, on thestud cap 1142 as well. This outward pressure causes thesnap cap 1142 to release from thesnap stud 1122, thereby separating thewindow 1100 from the retention system. - Recall, however, that the
strap 1130 is affixed to thepanel 1110 by virtue of thesnap post 1120 and other portions of the system. Because thestrap 1130 is so attached to thewindow 1100, continued pulling on thepull tab 1132 allows the user to remove the window from the window frame, or at least dislodge the window far enough to gain access to the outside window, such as illustrated above. Then the user may open the outside window as if the storm window had not been put in place. Thus the retention system allows for rapid egress out of the window by a person in need of exiting through the window that has the storm window mounted within the window frame. -
Figs. 16A, 16B, and 16C illustrate anotherembodiment 1310 of the invention including a soft-bulb portion 1320 integrated with arigid panel carrier 1330. In one embodiment the soft-bulb portion 1320 is co-produced with therigid panel carrier 1330 and bonds to the carrier during production. In other embodiments the soft-bulb portion 1320 may be formed around an already existingrigid panel carrier 1330. In such embodiments the soft-bulb portion 1320 may be bound to therigid panel carrier 1330, or may be attached to the carrier by other means, such as glue, epoxy, sonic bonding, or other bonding methods. Alternatively, or in addition, thesoft bulb portion 1320 may include a tongue or other extension that may engage a receiving slot formed in thecarrier 1330. Theembodiment 1310 may also be made by forming the soft-bulb portion 1320 separately from therigid panel carrier 1330, and later binding the soft-bulb portion 1320 andcarrier 1330 together using techniques described above. - The soft-
bulb portion 1320 may optionally include one ormore friction ribs sized ribs Fig. 16A , with theouter ribs 1324 being larger and taller than thesmaller ribs 1322. In other embodiments,central ribs 1324 may be larger thanouter ribs 1322. Other rib shapes, sizes, and orientations may be used depending on implementation. - The soft-
bulb portion 1320, as described above, may be made of from foam, silicone, EPDM, or PVC, or derivatives, or any other material having the properties desired. In a particular embodiment the soft-bulb portion 1320 is made of vulcanized polypropylene rubber, and more particularly of ThermoPlastic Vulcanisate (TPV), and even more particularly TPV 35A, which is widely available. - The soft-
bulb portion 1320 may optionally include one ormore relief grooves 1326 formed on an inside surface of material, as illustrated inFig. 16A . Theserelief grooves 1326 cause the soft-bulb portion 1320 to deform more at the relief grooves than in other areas of the soft-bulb, as illustrated inFigs. 16B and 16C . Therelief grooves 1326 serve to help maintain a relatively constant reformative force even when the soft-bulb portion 1320 is exposed to various amounts of compression. For example, therelief grooves 1326 reduces the rate at which pressure builds on thepanel 1340 during times of thermal expansion, and moderates the rate at which pressure is relieved from thepanel 1340 during times of thermal contraction. - The
rigid panel carrier 1330 is sized to accept a desired panel. As described above, the panel may commonly be glass or acrylic, or other panel having the desired properties, such as panels specifically selected for sound or light absorption. Within therigid panel carrier 1330 arenubs 1432 sized and shaped to cradle the panel, such as apanel 1340 inFigs. 16B and 16C within thepanel carrier 1330. Thenubs 1332 may be made of the TPV 35A, or may be made of another material selected for its properties. Thenubs 1332 are preferably comparatively soft and yieldable, so that they deform as thepanel 1340 is inserted within thecarrier 1330. As illustrated inFig. 16C , the positioning of the panel within thecarrier 1330 as held by thenubs 1332 may help support thepanel 1340 when inserted into a windowframe 1450 (Fig. 16B ), and especially when the shape of the windowframe causes thepanel 1340 to remain in an orientation that is not aligned with the center groove of thecarrier 1330, as illustrated inFig. 16C . Further, thepanel 1340 may shift within thecarrier 1330 as theembodiment 1310 is inserted or removed from a windowframe. -
Figs. 17A, 17B, and 17C illustrate asimilar embodiment 1410 that is similar in most respects to theembodiment 1310 ofFigs. 16A, 16B, and 16C , except that arigid panel carrier 1430 is sized to accept apanel 1440 that is larger than thepanel 1340 ofFigs. 16B and 16C , such as a double-thickness panel. - In other embodiments, the
rigid carrier possible panel 1440, and also be structured to accept thickness-adjusting inserts placed in the rigid carrier to permit strong grip on thinner panels. - Any of the embodiments illustrated in
Figs. 16A-16C and17A-17C may be used in conjunction with any of the controlled blowout features described above. Further, any of the embodiments illustrated inFigs. 16A-16C and17A-17C may be used on one or more edges, or portions of edges of a window, and the previously described embodiments, where the soft gasket material is used to further receive the panel it its groove, such asgroove 107 ofFig. 1 , may be used on the remaining edges of the window. This is similar to the embodiment described with reference toFigs. 2 and3 above, which described a rigid groove supporting the panel. - Also as described above with reference to
Fig. 1 , the soft-bulb portions 1320, 1420 of thesupports Figs. 16A-C and17-C , the cross section of thebulb portion 103 of the material making theresilient support 110 is relatively circular, being formed from with anouter surface 102 around a center "hole". The cross section of the soft-bulb portions 1320, 1420 may take many shapes, as described below, and the "hole" may be partially or fully filled with additional resilient material, or another material, also as described above. -
Fig. 18A illustrates another embodiment of the invention including a soft-bulb portion 1801 and acarrier 1802. The soft-bulb portion 1801 and thecarrier 1802 may be formed separately and then pressed, snapped, or otherwise mechanically coupled together to form an assembly, such as theassembly 1800 shown inFig. 18A .Fig. 18B is an exploded view of the soft-bulb portion 1801 and thecarrier 1802 before they are pressed together. Glue may be used in some particular embodiments to help affix the soft-bulb portion 1801 and thecarrier 1802. In other embodiments, no glue is necessary to keep the soft-bulb portion 1801 and thecarrier 1802 together, as described in more detail below. - The soft-
bulb portion 1801 and thecarrier 1802 are preferably extruded components. Thus,Figs. 18A and18B show end-view profiles of the soft-bulb portion 1801 and thecarrier 1802, each of which may be elongated and extend to any length in a dimension perpendicular to the two-dimensional representations shown inFigs. 18A and18B . Additionally, the soft-bulb portion 1801 and thecarrier 1802 preferably are each symmetric about avertical centerline 1803. Thus, features shown or described for the right side of the vertical centerline preferably have corresponding, mirrored features on the left side of the vertical centerline, such as illustrated inFigs. 18A and18B . - Directions such as "vertical," "horizontal," "right," and "left" with respect to the soft-bulb portion or the carrier are used for convenience and in reference to the views provided in figures. The soft-bulb portion and the carrier may have a number of orientations during installation or use, and a feature that is vertical or horizontal in the figures may not have that same orientation in actual use.
- The soft-
bulb portion 1801, such as illustrated inFigs. 18A and18B , includesfriction ribs 1804, abase section 1805, and atongue 1806. Preferably, the soft-bulb portion 1801 is generally circular or rounded in cross section, enclosing a central void. More preferably, the soft-bulb portion 1801 is generally dome- or egg-shaped. Thus, the soft-bulb portion 1801 may have the form of the bulbs shown inFigs. 1 ,7A ,16A ,17A , or19A or any other appropriate bulb design. The void 1807 at the center of the soft-bulb portion 1801 may be empty except for air or another gas, or the void 1807 may be partially or fully filled with a resilient material. The soft-bulb portion 1801 is said to be "soft" because its shape is deformable or compressible, and not necessarily its material makeup, although either or both are possible. - The function of the
friction ribs 1804 is as described above. Some friction ribs may be larger and taller than other friction ribs, such as described forFigs. 16A, 16B, and 16C . Other rib shapes, sizes, and orientations may be used depending on implementation. - The
base section 1805 includes angled faces 1808,horizontal faces 1809, internal corner grooves, or relief grooves, 1810, andouter corners 1811. The horizontal faces 1809 are generally perpendicular to thevertical centerline 1803 of the soft-bulb portion 1801. The horizontal faces 1809 have aninner end 1812 and anouter end 1813. Thecorner grooves 1810 may cause the soft-bulb portion 1801 to deform more at the corner grooves than in other areas of the soft-bulb portion. The function of thecorner grooves 1810 may be as described above inFig. 16A for therelief grooves 1326. - The
tongue 1806 extends from thebase section 1805 of the soft-bulb portion 1801 and from the inner ends 1812 of the horizontal faces 1809. Thetongue 1806 includesshoulders 1814 at adistal end 1815 of thetongue 1806. Theshoulders 1814 are configured to engage, and perhaps interlock with, edges 1816 of thecarrier 1802, as described more fully below. Preferably, thetongue 1806 is symmetric about thevertical centerline 1803 of the soft-bulb portion 1801. - The angled faces 1808 extend from the outer ends 1813 of the
horizontal faces 1809 and at anangle 1817 to the horizontal faces 1809. Theouter corners 1811 are atouter ends 1813 of the angled faces 1808. - The soft-
bulb portion 1801 may be made, for example, from foam, silicone, EPDM, or PVC. Preferably, the soft-bulb portion is made from a resilient polymer, such as silicone. More preferably, the soft-bulb portion is made from silicone having a hardness of about 50 durometer and conforming to theASTM 2000 standard classification as set forth by ASTM International. - Preferably, the soft-
bulb portion 1801 has aside wall thickness 1818 of between about 0.25mm (0.010 inch) and about 2.79mm (0.110 inch). More preferably, the soft-bulb portion has a side wall thickness of between about 1.02mm (0.040 inch) and about 2.03mm (0.080 inch). Even more preferably, the soft-bulb portion has a side wall thickness of between 1.32mm (0.052 inch) and 1.73mm (0.068 inch). The top wall thickness 1819 of the soft-bulb portion may be greater than theside wall thickness 1818. For example, the top wall thickness may be about 15% to 35% greater than the side wall thickness. In one embodiment, the side wall thickness is approximately 1.52mm (0.060 inch) and the top wall thickness is approximately 1.91mm (0.075 inch). - Preferably, the soft-
bulb portion 1801 has anoverall width 1820 of between about 31.8mm (1.25 inch) and about 6.35mm (0.250 inch). More preferably, the soft-bulb portion has an overall width of between about 25.4mm (1.00 inch) and about 12.7mm (0.500 inch). Even more preferably, the soft-bulb portion has an overall width of between 18.1mm (0.711 inch) and 20.0mm (0.789 inch). - Preferably, the
distance 1821 between theshoulders 1814 of thetongue 1806 and the horizontal faces 1809 is between about 5.72mm (0.225 inch) and about 3.175mm (0.125 inch). More preferably, the distance between the shoulders and the horizontal faces is between about 5.33mm (0.210 inch) and about 3.56mm (0.140 inch). Even more preferably, the distance between the shoulders and the horizontal faces is between 4.83mm (0.190 inch) and 4.06mm (0.160 inch). - Preferably, the
width 1822 across theshoulders 1814 is between about 5.08mm (0.200 inch) and about 1.78mm (0.070 inch). More preferably, the width across the shoulders is between about 4.19mm (0.165 inch) and about 2.67mm (0.105 inch). Even more preferably, the width across the shoulders is between 3.94mm (0.155 inch) and 3.175mm (0.125 inch). - Preferably, the
height 1823 between thehorizontal faces 1809 and the top of an outer friction rib 1824 is between about 25.4mm (1.00 inch) and about 4.83mm (0.190 inch). More preferably, the height between the horizontal faces and the top of an outer friction rib is between about 22.2mm (0.875 inch) and about 7.24mm (0.285 inch). Even more preferably, the height between the horizontal faces and the top of an outer friction rib is between 15.6mm (0.614 inch) and 14.0mm (0.552 inch). - Preferably, the
angle 1817 between the horizontal face and the angled face is between about 95 degrees and about 175 degrees. More preferably, the angle between the horizontal face and the angled face is between about 115 degrees and about 145 degrees. In one embodiment, the angle is about 130 degrees. - The
carrier 1802, such as illustrated inFigs. 18A and18B , includes acarrier body 1825,nubs 1826, andstabilizers 1827. - The
nubs 1826 are generally as described above forFigs. 16A, 16B, and 16C . In general, thenubs 1826 are sized, shaped, and configured to cradle a panel, such as thepanel 1340 inFigs. 16B and 16C , within thecarrier 1802. Preferably, thenubs 1826 are comparatively soft and yieldable, relative to the panel and thecarrier 1802, so that thenubs 1826 deform as the panel is inserted within apanel gap 1835 of thecarrier 1802. WhileFigs. 18A and18B do not show a panel, the panel inserts into thecarrier 1802 generally as shown inFigs. 16B and 16C or, for a wider panel, as shown inFigs. 17B and 17C . - The
stabilizers 1827 are generally located on either side of thepanel gap 1835 and protrude into thepanel gap 1835. Thestabilizers 1827 may provide lateral stability and alignment to the panel within thecarrier 1802, and thestabilizers 1827 may help prevent dust and other contaminants from entering thepanel gap 1835 when a panel is installed within thecarrier 1802. For example, the stabilizers may be made from thermoplastic polyurethane (TPU). In some embodiments, thestabilizers 1827 may be configured to align the panel so that the panel is symmetric about thevertical centerline 1803 of the soft-bulb portion 1801 when the soft-bulb portion 1801 is assembled to thecarrier 1802. In some embodiments, thestabilizers 1827 may be configured to align the panel so that the panel is not symmetric about thevertical centerline 1803 of the soft-bulb portion 1801 when the soft-bulb portion 1801 is assembled to thecarrier 1802. A panel that is not symmetric about the vertical centerline of the bulb may be useful when, for example, the window frame is bowed in or out so that it is not straight. Thus, the position and type ofnub 1826, such as its material and thickness, may be altered to change the alignment of the soft-bulb portion 1801 with respect to the panel and allow the user to fill in gaps caused by a bowed window frame. - The
carrier body 1825 includes sloped faces 1828, top faces 1829,resilient prongs 1830, and asnap channel 1831. The sloped faces 1828 are configured to align with and contact the angled faces 1808 of the soft-bulb portion 1801 when the soft-bulb portion is assembled to thecarrier 1802, such as shown inFig. 18A . Accordingly, the slope of the sloped faces 1828 preferably matches or corresponds to theangle 1817 of the angled faces 1808. Likewise, the top faces 1829 are configured to align with and contact thehorizontal faces 1809 of the soft-bulb portion 1801 when the soft-bulb portion 1801 is assembled to thecarrier 1802, such as shown inFig. 18A . - The
resilient prongs 1830 extend into thesnap channel 1831, and the distal end 1836 of eachresilient prong 1830 includes an edge 1816. - Preferably, the
width 1832 of thesnap channel 1831 is between about 3.81mm (0.150 inch) and about 0.89mm (0.035 inch). More preferably, the width of the snap channel is between about 3.175mm (0.125 inch) and about 1.27mm (0.050 inch). Even more preferably, the width of the snap channel is between 2.54mm (0.100 inch) and 1.68mm (0.066 inch). - Preferably, the
width 1833 of thecarrier body 1825 is between about 22.9mm (0.900 inch) and about 5.08mm (0.200 inch). More preferably, the width of the carrier body is between about 19.1mm (0.750 inch) and about 8.89mm (0.350 inch). Even more preferably, the width of the carrier body is between 16.0mm (0.630 inch) and 14.4mm (0.568 inch). - Preferably, the
overall height 1834 of thecarrier body 1825 is between about 30.5mm (1.20 inch) and about 12.7mm (0.500 inch). More preferably, the overall height of the carrier body is between about 25.4mm (1.00 inch) and about 16.5mm (0.650 inch). Even more preferably, the overall height of the carrier body is between 21.7mm (0.856 inch) and 19.8mm (0.778 inch). - Preferably, the
depth 1837 of thepanel gap 1835 is between about 25.4mm (1.00 inch) and about 1.60mm (0.063 inch). More preferably, the depth of the panel gap is between about 19.1mm (0.750 inch) and about 2.54mm (0.100 inch). Even more preferably, the depth of the panel gap is between 9.53mm (0.375 inch) and 3.175mm (0.125 inch). - To assemble the soft-
bulb portion 1801 to thecarrier 1802, thetongue 1806 may be inserted into thesnap channel 1831 until theshoulders 1814 of thetongue 1806 abut the edges 1816 of theresilient prongs 1830. The resiliency of the prongs allow the edges 1816 of theprongs 1830 to diverge, or separate, enough for theshoulders 1814, which may be pliable, of thetongue 1806 to pass the edges 1816 of theresilient prongs 1830 during the insertion process. Once theshoulders 1814 of thetongue 1806 pass the edges 1816 of theresilient prongs 1830, the resiliency of theprongs 1830 allows the edges 1816 of theprongs 1830 to converge again, thus causing the edges 1816 to engage with theshoulders 1814 of thetongue 1806, such as shown inFig. 18A . With thetongue 1806 fully inserted into thesnap channel 1831, the horizontal faces 1809 of the soft-bulb portion 1801 contact the top faces 1829 of thecarrier 1802. Also, the angled faces 1808 and theouter corners 1811 of the soft-bulb portion 1801 contact the sloped faces 1828 of thecarrier 1802. - Preferably, the
carrier 1802 is made from a polymer, such as a thermoplastic polymer. The polymer may be rigid or semi-rigid. More preferably, thecarrier body 1825 is made from acrylonitrile butadiene styrene (ABS), while thenubs 1826 and thestabilizers 1827 are made from thermoplastic polyurethane (TPU). -
Fig. 19A illustrates another embodiment including a soft-bulb portion 1901 and acarrier 1902. The soft-bulb portion 1901 and thecarrier 1902 may be formed separately and then pressed, snapped, or otherwise mechanically coupled together to form an assembly, such as theassembly 1900 shown inFig. 19A .Fig. 19B is an exploded view of the soft-bulb portion 1901 and thecarrier 1902 before they are pressed together. Glue may be used in some particular embodiments to help affix the soft-bulb portion 1901 and thecarrier 1902. In other embodiments, no glue is necessary to keep the soft-bulb portion 1901 and thecarrier 1902 together, as described in more detail below. - As illustrated in
Figs. 19A and19B , the soft-bulb portion 1901 and thecarrier 1902 are preferably extruded components. Thus,Figs. 19A and19B show end-view profiles of the soft-bulb portion 1901 and thecarrier 1902, each of which may be elongated and extend to any length in a dimension perpendicular to the two-dimensional representations shown inFigs. 19A and19B . Additionally, the soft-bulb portion 1901 and thecarrier 1902 preferably are each symmetric about avertical centerline 1903. - The soft-
bulb portion 1901, such as illustrated inFigs. 19A and19B , includes abase section 1904 andtongues 1905. Thebase section 1904 includes ahorizontal face 1906. While not shown inFigs. 19A or19B , the soft-bulb portion 1901 may include friction ribs having the shapes, sizes, and orientations as generally as described above. While not shown inFigs. 19A or19B , the soft-bulb portion 1901 may also include corner grooves, or relief grooves, such as those described above forFigs. 18A and18B . - Preferably, the soft-
bulb portion 1901 is generally circular or rounded in cross section, enclosing a central void. More preferably, the cross-sectional profile of the soft-bulb portion 1901 is generally in the shape of a domed or rounded pentagon, for example as shown inFigs. 19A and19B , although other bulb profiles could be used. Thus, the soft-bulb portion 1801 may have the form of the bulbs shown inFigs. 1 ,7A ,16A ,17A , or18A or any other appropriate bulb design. Theside walls 1907 of the soft-bulb portion 1901 may collectively angle toward thevertical centerline 1903, such that top ends 1908 of theside walls 1907 are closer together than bottom ends 1909 of theside walls 1907. In the event of a non-vertical force applied to the soft-bulb portion 1901, theangled side walls 1907 may allow the soft-bulb portion 1901 to deform first at atop section 1910 of the soft-bulb portion 1901 before thebase section 1904, which may improve the lateral stability of the soft-bulb portion 1901 within theassembly 1900. A void 1911 at the center of the soft-bulb portion 1901 may be empty except for air or another gas, or the void 1911 may be partially or fully filled with a resilient material. - Each of the
tongues 1905 extends from thebase section 1904 of the soft-bulb portion 1901. Thetongues 1905 includesshoulders 1912 atdistal ends 1913 of thetongues 1905. Theshoulders 1912 are shaped and configured to engage, and perhaps interlock with,edges 1914 of thecarrier 1902, such as described above forFigs. 18A and18B . Preferably, thetongues 1905 are collectively symmetric about thevertical centerline 1903 of the soft-bulb portion 1901. While the embodiment illustrated inFigs. 19A and19B includes twotongues 1905, some embodiments have more than twotongues 1905. - The soft-
bulb portion 1901 may be made, for example, from foam, silicone, EPDM, or PVC. Preferably, the soft-bulb portion is made from a resilient polymer, such as silicone. More preferably, the soft-bulb portion is made from silicone having a hardness of about 50 durometer and conforming to theASTM 2000 standard classification as set forth by ASTM International. - The
carrier 1902, such as illustrated inFigs. 19A and19B , includes acarrier body 1915. While not shown inFigs. 19A and19B , thecarrier 1902 may also include nubs and stabilizers, such as the nubs and stabilizers discussed above forFigs. 18A and18B . As noted above, a panel inserts into thecarrier 1902 generally as shown inFigs. 16B and 16C or, for a wider panel, as shown inFigs. 17B and 17C . - The
carrier body 1915 includesresilient prongs 1916, atop face 1917,snap channels 1918, andouter corners 1919. Thetop face 1917 is configured to align with and contact thehorizontal face 1906 of the soft-bulb portion 1901 when the soft-bulb portion 1901 is assembled to thecarrier 1902, such as shown inFig. 18A . Theresilient prongs 1916 extend into thesnap channel 1918, and adistal end 1920 of eachresilient prong 1916 includes anedge 1914. Eachsnap channel 1918 provides a passage between theresilient prongs 1916 for insertion of thetongue 1905 of the soft-bulb portion 1901. - Preferably, the
carrier 1902 is made from a polymer, such as a thermoplastic polymer. The polymer may be rigid or semi-rigid. More preferably, thecarrier body 1915 is made from acrylonitrile butadiene styrene (ABS), while the nubs and the stabilizers are made from thermoplastic polyurethane (TPU). - To assemble the soft-
bulb portion 1901 to thecarrier 1902, the process is similar to what is described above forFigs. 18A and18B . That is, each of thetongues 1905 may be inserted into therespective snap channel 1918 until theshoulders 1912 of thetongue 1905 abut theedges 1914 of theresilient prongs 1916. With thetongue 1905 fully inserted into thesnap channel 1918, the horizontal faces 1906 of the soft-bulb portion 1901 contact the top faces 1917 of thecarrier 1902. Also, theouter corners 1919 of thecarrier 1902 contact thebase section 1904 of the soft-bulb portion 1901. The relativelybroad base section 1904 of the soft-bulb portion 1901 and the relatively widetop faces 1917 of thecarrier 1902, as measured between theouter corners 1919 of thecarrier 1902, may help increase lateral stability of theassembly 1900 in the event a non-vertical force is applied to the soft-bulb portion 1901 or thecarrier 1902. - One important metric for systems for mounting a secondary panel within a window frame is called slip force. Slip force is a measure of the lateral load that an assembly can withstand without slipping as measured at various amounts of bulb compression. For example, a surface may be placed against the top of the soft-
bulb portion 1901 ofFig. 19A , and the soft-bulb portion 1901 may be compressed to various amounts in a direction parallel to thevertical centerline 1903. Those various amounts may be, for example, increments of 1.59mm (1/16 of an inch). At each increment, a force is applied to the soft-bulb portion 1901 and in a direction perpendicular to thevertical centerline 1903. The force may be expressed as force per unit length, such as per inch, of the soft-bulb portion 1901. - On the one hand, the slip force metric should be sufficiently high enough to help prevent the secondary panel from dislodging from the window frame under typical conditions. For example, as noted above, when forceful winds blow from outside the window through air gaps in older windows, they may create significant pressure on the secondary window mounted inside. On the other hand, the slip force metric should be sufficiently low enough to help prevent the buildup of air pressure between the secondary panel and the existing window. As discussed above, that can also dislodge the secondary panel from dislodging from the window frame. Accordingly, it is preferred that the slip force changes relatively little as compression of the bulb increases.
- Secondary panel systems incorporating an assembly, such as the
assembly 1900, may have a slip force that increases less than 50% as the bulb compression increases from about 10% of overall bulb height to about 65% of overall bulb height. By comparison, some conventional panel systems have a slip force that increases over 400% for the same compression interval. - Another important set of metrics for systems for mounting a secondary panel within a window frame are the push force and the pull force. The push force is the force, per unit area, that it takes to dislodge a mounted secondary panel from a window frame. In other words, it is a measure of the resistance to air pressure acting, or pushing, on the panel. By contrast, pull force is a measure of the effort it takes to dislodge the panel by pulling it, from a localized point on the panel, rather than pushing it. The pull force, for example, may quantify how difficult it would be for a user to intentionally dislodge the mounted panel from a window frame by pulling on the panel. The pull force and push force are generally determined relative to a frame depth, which is how deep into a window frame the panel, including the bulb and the carrier, is mounted.
- At a frame depth of about 19.1mm (3/4 inch), secondary panel systems incorporating an assembly, such as the
assembly 1900, may have a push force that is about 5.2 pounds per square foot and a pull force of about 10.5 pounds on a panel having an area of about 3.5 square feet. -
Fig. 20A illustrates another embodiment including a soft-bulb portion 2001, a carrier orframe 2002, and a snap bead orreceiver 2003. The soft-bulb portion 2001, thecarrier 2002, and thesnap bead 2003 may be formed separately and then pressed or snapped together to form an assembly, such as theassembly 2000 shown inFig. 20A . Thecarrier 2002 and thesnap bead 2003 may be pressed or snapped together over aflexible sheet 2004, such as a plastic film or a screen. Thus, for example, theassembly 2000 may serve as a frame or edging for a window screen.Fig. 20B is an exploded view of the soft-bulb portion 2001, thecarrier 2002, and thesnap bead 2003 before they are pressed together. - As illustrated in
Figs. 20A and 20B , the soft-bulb portion 2001, thecarrier 2002, and thesnap bead 2003 are preferably extruded components. Thus,Figs. 20A and 20B show end-view profiles of the soft-bulb portion 2001, thecarrier 2002, and thesnap bead 2003, each of which may be elongated extend to any length in a dimension perpendicular to the two-dimensional representations shown inFigs. 20A and 20B . - The soft-
bulb portion 2001 is generally as described above forFigs. 19A and19B . Also, thecarrier 2002 includes resilient prongs, a top face, snap channels, and outer corners, such as described above forFigs. 19A and19B . The soft-bulb portion 2001 may be connected to thecarrier 2002 generally as described above for -
Figs. 19A and19B . - As illustrated in
Figs. 20A and 20B , thecarrier 2002 includes anarm 2005 having aprotrusion 2006. Thearm 2005 may provide physical separation between theprotrusion 2006 and thetop face 2007 of thecarrier 2002. Theprotrusion 2006 is configured to engage, and possibly interlock with, thesnap bead 2003. For example, theprotrusion 2006 may have a roundedtip 2008, such as shown inFigs. 20A and 20B . Preferably, theprotrusion 2006 extends from thearm 2006 at a non-parallel angle. For example, the protrusion may extend at a 45, 90, or 150 degree angle from the arm, although other angles are also feasible. - The
snap bead 2003 includes agap 2009 and may include nubs, such as the nubs discussed above forFigs. 18A and18B . In theassembly 2000, though, the nubs may help position theprotrusion 2006 and thescreen 2004 within thegap 2009. Thus, the nubs are preferably comparatively soft and yieldable, so that they deform as theprotrusion 2006 is inserted within thegap 2009. Thegap 2009 is configured to accept theprotrusion 2006 of thearm 2005 and to receive or pinch thescreen 2004 between theprotrusion 2006 and thesnap bead 2003. To remove thescreen 2004, thesnap bead 2003 may be disengaged from, or pulled off of, theprotrusion 2006. - Preferably, the
carrier 2002 and thesnap bead 2003 are each made from a polymer, such as a thermoplastic polymer. The polymer may be rigid or semi-rigid. More preferably, the carrier and the snap bead are made from acrylonitrile butadiene styrene (ABS). -
Figs. 21A-21D illustrate an embodiment of the invention including a soft-bulb portion 2101 and acarrier 2102. The soft-bulb portion 2101 and thecarrier 2102 may be formed separately and then mechanically coupled together to form an assembly, such as theassembly 2100 shown inFig. 21A. Fig. 21B is an exploded view of the soft-bulb portion 2101 and thecarrier 2102 before they are coupled together.Fig. 21C is an end view of the soft-bulb portion ofFig. 21A shown in isolation.Fig. 21D is an end view of the carrier ofFig. 21A shown in isolation. - The soft-
bulb portion 2101 and thecarrier 2102 are preferably extruded components. Thus,Figs. 21A-21D show end-view profiles of the soft-bulb portion 2101 and thecarrier 2102, each of which may be elongated and extend to any length in a dimension perpendicular to the two-dimensional representations shown inFigs. 21A-21D . Additionally, the soft-bulb portion 2101 and thecarrier 2102 preferably are each symmetric about avertical centerline 2103. Thus, features shown or described for the right side of the vertical centerline preferably have corresponding, mirrored features on the left side of the vertical centerline, such as illustrated inFig. 21A . - Directions such as "top," "bottom," "vertical," "horizontal," "right," and "left" with respect to the soft-bulb portion or the carrier are used for convenience and in reference to the views provided in figures. The soft-bulb portion and the carrier may have a number of orientations during installation or use, and a feature that is vertical or horizontal in the figures may not have that same orientation in actual use. Additionally, laterally means in a direction substantially perpendicular to the
vertical centerline 2103. - The soft-
bulb portion 2101, such as illustrated inFigs. 21A, 21B , and21C , includesfriction ribs 2104, abase section 2105, and a T-connector 2106, so called because it resembles an upside-down capital letter T. Preferably, the soft-bulb portion 2101 is generally circular or rounded in cross section, enclosing a central void. More preferably, the soft-bulb portion 2101 is generally dome- or egg-shaped. Thus, the soft-bulb portion 2101 may have the form of the bulbs shown inFigs. 1 ,7A ,16A ,17A ,18A , or19A , or any other appropriate bulb design. The void 2107 at the center of the soft-bulb portion 2101 may be empty except for air or another gas, or the void 2107 may be partially or fully filled with a resilient material. The soft-bulb portion 2101 is said to be "soft" because its shape is deformable or compressible, and not necessarily its material makeup, although either or both are possible. - The function of the
friction ribs 2104 is as described above forFigs. 9A-9C . Some friction ribs may be larger and taller than other friction ribs, such as described forFigs. 16A, 16B, and 16C . Other rib shapes, sizes, and orientations may be used depending on the implementation. - The
base section 2105 may include internal corner grooves, or relief grooves, 2108. Thecorner grooves 2108 may cause the soft-bulb portion 2101 to deform more at the corner grooves than in other areas of the soft-bulb portion. The function of thecorner grooves 2108 may be as described above inFig. 16A for therelief grooves 1326. - The T-
connector 2106 extends from thebase section 2105 of the soft-bulb portion 2101. Preferably, the T-connector 2106 is symmetric about thevertical centerline 2103 of the soft-bulb portion 2101. As illustrated inFigs 21A, 21B , and21C , the T-connector 2106 may include anextension 2109 and acrosspiece 2110. Theextension 2109 extends away from thebase section 2105 and may include anaperture 2111. Theaperture 2111 may have a generally rectangular cross-section, such as shown inFigs. 21A, 21B , and21C . As other examples, theaperture 2111 may have a generally oval or round cross-section. Other shapes may also be used depending on the implementation. In some embodiments asupport rod 2112 may be inserted into theaperture 2111 to provide additional stiffness to theassembly 2100. For example, thesupport rod 2112 may contact ininterior edges 2118 of theaperture 2111. Preferably, thesupport rod 2112 is made of metal. Thesupport rod 2112 may have a cross-sectional profile that is, for example, round, oval, or rectangular. Other shapes may also be used depending on the implementation. Thecrosspiece 2110 is coupled to adistal end 2113 of theextension 2109.Shoulders 2114 of thecrosspiece 2110 extend laterally away from thevertical centerline 2103 of the soft-bulb portion 2101. Accordingly, theshoulders 2114 protrude laterally beyond the extension, such as shown inFigs. 21A, 21B , and21C . - When the soft-
bulb portion 2101 is not installed in thecarrier 2102, theangle 2142 between thebase section 2105 and theextension 2109 is preferably less than about ninety degrees. By contrast, when the soft-bulb portion 2101 is installed in thecarrier 2102, theangle 2142 between thebase section 2105 and theextension 2109 is preferably about ninety degrees. This interference fit provides a small spring force and allows the soft-bulb portion 2101 to grip thebase section 2105 where thebase section 2105 and theextension 2109 contact thecarrier 2102. - The soft-
bulb portion 2101 may be made, for example, from foam, silicone, EPDM, or PVC. Preferably, the soft-bulb portion is made from a resilient polymer, such as silicone. More preferably, the soft-bulb portion is made from silicone having a hardness between about 45 durometer and about 75 durometer. Even more preferably, the soft-bulb portion is made from silicone having a hardness of about 60 durometer. All or a portion of the T-connector 2106 may also be sprayed or otherwise coated with a clear, low friction coating. For example, thebottom surface 2115, left-side surface 2116, and right-side surface 2117 of thecrosspiece 2110 may include the clear, low friction coating. - Preferably, the soft-
bulb portion 2101 has aside wall thickness 2119 of between about 0.25mm (0.010 inch) and about 2.79mm (0.110 inch). More preferably, the soft-bulb portion has a side wall thickness of between about 1.02mm (0.040 inch) and about 2.03mm (0.080 inch). Even more preferably, the soft-bulb portion has a side wall thickness of about 1.52mm (0.060 inch). Thetop wall thickness 2120 of the soft-bulb portion may be greater than theside wall thickness 2119. For example, the top wall thickness may be about 15% to 35% greater than the side wall thickness. In one embodiment, the side wall thickness is approximately 1.52mm (0.060 inch) and the top wall thickness is approximately 1.91mm (0.075 inch). - Preferably, the soft-
bulb portion 2101 has anoverall width 2121 of between about 31.8mm (1.25 inch) and about 6.35mm (0.250 inch). More preferably, the soft-bulb portion has an overall width of between about 25.4mm (1.00 inch) and about 12.7mm (0.500 inch). Even more preferably, the soft-bulb portion has an overall width of between 18.1mm (0.711 inch) and 20.0mm (0.789 inch). - Preferably, the
lateral width 2122 between theshoulders 2114 is between about 20.3mm (0.800 inch) and about 4.06mm (0.160 inch). More preferably, thelateral width 2122 is between about 15.2mm (0.600 inch) and about 7.62mm (0.300 inch). Even more preferably, thelateral width 2122 is between 12.9mm (0.506 inch) and 11.3mm (0.444 inch). - Preferably, the
lateral width 2123 of theaperture 2111 is between about 8.89mm (0.350 inch) and about 1.78mm (0.070 inch). More preferably, thelateral width 2123 is between about 7.11mm (0.280 inch) and about 3.56mm (0.140 inch). Even more preferably, thelateral width 2123 is between 5.84mm (0.230 inch) and 4.83mm (0.190 inch). Preferably, theheight 2124 of theaperture 2111 is between about 6.10mm (0.240 inch) and about 1.27mm (0.050 inch). More preferably, theheight 2124 is between about 0.190 inch and about 2.54mm (0.100 inch). Even more preferably, theheight 2124 is between 4.09mm (0.161 inch) and 3.28mm (0.129 inch). - Preferably, the
distance 2125 between thebottom surface 2115 of thecrosspiece 2110 and the upper surface of thecrosspiece 2110 is between about 3.30mm (0.130 inch) and about 0.64mm (0.025 inch). More preferably, thedistance 2125 is between about 2.79mm (0.110 inch) and about 1.27mm (0.050 inch). Even more preferably, thedistance 2125 is between 2.39mm (0.094 inch) and 1.68mm (0.066 inch). - Preferably, the
distance 2126 between thebottom surface 2115 of thecrosspiece 2110 and the lower surface of thebase section 2105 is between about 7.37mm (0.290 inch) and about 1.52mm (0.060 inch). More preferably, thedistance 2126 is between about 5.84mm (0.230 inch) and about 2.79mm (0.110 inch). Even more preferably, thedistance 2126 is between 4.95mm (0.195 inch) and 3.94mm (0.155 inch). - Preferably, the
height 2127 of thevoid 2107 is between about 26.0mm (1.025 inch) and about 5.08mm (0.200 inch). More preferably, theheight 2127 is between about 20.3mm (0.800 inch) and about 10.2mm (0.400 inch). Even more preferably, theheight 2127 is between 16.4mm (0.646 inch) and 14.8mm (0.584 inch). - Preferably, the
angle 2142 is between about 86 degrees and about 75 degrees. More preferably, theangle 2142 is between about 85 degrees and about 79 degrees. Even more preferably, theangle 2142 is between 80 degrees and 83 degrees. - The
carrier 2102, such as illustrated inFigs. 21A, 21B , and21D , includes acarrier body 2128,nubs 2129,stabilizers 2130, andprotuberances 2143. - The
nubs 2129 are generally as described above forFigs. 16A, 16B, and 16C . In general, thenubs 2129 are sized, shaped, and configured to cradle a panel, such as thepanel 1340 inFigs. 16B and 16C , within thecarrier 2102. Preferably, thenubs 2129 are comparatively soft and yieldable, relative to the panel and thecarrier 2102, so that thenubs 2129 deform as the panel is inserted within apanel gap 2131 of thecarrier 2102. WhileFig. 21A does not show a panel, the panel inserts into thecarrier 2102 generally as shown inFigs. 16B and 16C or, for a wider panel, as shown inFigs. 17B and 17C . - The
stabilizers 2130 are generally located on either side of thepanel gap 2131 and protrude into thepanel gap 2131. Thestabilizers 2130 may provide lateral stability and alignment to the panel within thecarrier 2102, and thestabilizers 2130 may help prevent dust and other contaminants from entering thepanel gap 2131 when a panel is installed within thecarrier 2102. For example, the stabilizers may be made from thermoplastic polyurethane (TPU). In some embodiments, thestabilizers 2130 may be configured to align the panel so that the panel is symmetric about thevertical centerline 2103 of the soft-bulb portion 2101 when the soft-bulb portion 2101 is assembled to thecarrier 2102. In some embodiments, thestabilizers 2130 may be configured to align the panel so that the panel is not symmetric about thevertical centerline 2103 of the soft-bulb portion 2101 when the soft-bulb portion 2101 is assembled to thecarrier 2102. A panel that is not symmetric about the vertical centerline of the bulb may be useful when, for example, the window frame is bowed in or out so that it is not straight. Thus, the position and type ofnub 2126, such as its material and thickness, may be altered to change the alignment of the soft-bulb portion 2101 with respect to the panel and allow the user to fill in gaps caused by a bowed window frame. - The
protuberances 2143 are configured to align the panel within thepanel gap 2131 and to keep the panel from shifting within thepanel gap 2131 when a panel is installed within thecarrier 2102. - The
carrier body 2128 includes areceiving slot 2132 opposite the panel gap. The receivingslot 2132 has aneck 2133 that is laterally narrower than aninterior cavity 2134 of the receivingslot 2132. For example, theneck 2133 may be between about 15% and about 40% narrower than theinterior cavity 2134. As illustrated inFigs. 21A, 21B , and21D , thecarrier body 2128 may includesteps 2135 that extend toward thevertical centerline 2103, forming theneck 2133 of the receivingslot 2132. The receivingslot 2132 is therefore configured to securely receive thecrosspiece 2110 of thebulb 2101 and to confine theshoulders 2114 of thecrosspiece 2110. Hence, during normal use the soft-bulb portion 2101 cannot be removed from the receivingslot 2132 through theneck 2133. - Preferably, the
carrier 2102 is made from a polymer, such as a thermoplastic polymer. The polymer may be rigid or semi-rigid. More preferably, thecarrier body 2128 is made from acrylonitrile butadiene styrene (ABS), while thenubs 2129 and thestabilizers 2130 are made from thermoplastic polyurethane (TPU). - Preferably, the
length 2136 of thepanel gap 2131 is between about 20.3mm (0.800 inch) and about 4.32mm (0.170 inch). More preferably, thelength 2136 is between about 17.8mm (0.700 inch) and about 7.62mm (0.300 inch). Even more preferably, thelength 2136 is between 13.5mm (0.531 inch) and 11.9mm (0.469 inch). - Preferably, the
height 2137 of the receivingslot 2132 is between about 7.62mm (0.300 inch) and about 1.52mm (0.060 inch). More preferably, theheight 2137 is between about 5.84mm (0.230 inch) and about 3.05mm (0.120 inch). Even more preferably, theheight 2137 is between 4.95mm (0.195 inch) and 3.94mm (0.155 inch). - Preferably, the
lateral width 2138 of theneck 2133 is between about 15.2mm (0.600 inch) and about 3.05mm (0.120 inch). More preferably, thewidth 2138 is between about 12.2mm (0.480 inch) and about 6.10mm (0.240 inch). Even more preferably, thewidth 2138 is between 9.75mm (0.384 inch) and 8.38mm (0.330 inch). - As discussed above, the
carrier 2102 may accommodate panels of different widths. Preferably, thecarrier 2102 may accommodate at least two panels, one being relatively thinner than the other. For example, the thinner panel may have a thickness of about 3.00mm (0.118 inch), while the thicker panel may have a thickness of about 5.59mm (0.220 inch). - For the thicker panel, preferably the
gap 2139 between thenubs 2129 is between about 8.76mm (0.345 inch) and about 1.78mm (0.070 inch). More preferably, thegap 2139 is between about 6.99mm (0.275 inch) and about 3.56mm (0.140 inch). Even more preferably, thegap 2139 is between 5.77mm (0.227 inch) and 4.75mm (0.187 inch). For the thinner panel, preferably thegap 2139 is between about 4.45mm (0.175 inch) and about 0.89mm (0.035 inch). More preferably, thegap 2139 is between about 3.56mm (0.140 inch) and about 1.78mm (0.070 inch). Even more preferably, thegap 2139 is between 3.07mm (0.121 inch) and 2.26mm (0.089 inch). - For the thicker panel, preferably the
gap 2140 between thestabilizers 2130 is between about 7.62mm (0.300 inch) and about 1.52mm (0.060 inch). More preferably, thegap 2140 is between about 6.10mm (0.240 inch) and about 3.05mm (0.120 inch). Even more preferably, thegap 2140 is between 5.13mm (0.202 inch) and 4.12mm (0.162 inch). For the thinner panel, preferably thegap 2140 is between about 3.30mm (0.130 inch) and about 0.64mm (0.025 inch). More preferably, thegap 2140 is between about 2.54mm (0.100 inch) and about 1.27mm (0.050 inch). Even more preferably, thegap 2140 is between 2.39mm (0.094 inch) and 1.68mm (0.066 inch). - Preferably the height 2141 of the
interior cavity 2134 of the receivingslot 2132 is between about 4.06mm (0.160 inch) and about 0.76mm (0.030 inch). More preferably, the height 2141 is between about 3.175mm (0.125 inch) and about 1.52mm (0.060 inch). Even more preferably, the height 2141 is between 2.77mm (0.109 inch) and 2.06mm (0.081 inch). - To assemble the soft-
bulb portion 2101 to thecarrier 2102, the T-connector 2106 of the soft-bulb portion 2101 may be inserted into the receivingslot 2132 of thecarrier 2102 from an end of thecarrier 2102, for example, by sliding the T-connector 2106 into the receivingslot 2132. As noted above, the soft-bulb portion 2101 and thecarrier 2102 are preferably elongated components. Thus,Figs. 21A-21D show end-views of the soft-bulb portion 2101 and thecarrier 2102, each of which may extend to any length in a dimension perpendicular to the two-dimensional representations shown inFigs. 21A-21D . To disassemble the soft-bulb portion 2101 from thecarrier 2102, the T-connector 2106 may be slid out of the receivingslot 2132 from an end of thecarrier 2102. - In this way, the soft-
bulb portion 2101 may be attached to thecarrier 2102 without the use of glue or another adhesive to fix the bulb to the carrier. Also, the assembly, when made to the preferred dimensions, provides lateral stability by reducing or eliminating bulb roll when the assembly is pressed into a window frame. -
Fig. 22 illustrates another embodiment of the invention, including a soft-bulb portion 2201 and acarrier 2202. The soft-bulb portion 2201 may be the soft-bulb portion 2101 that is described above forFigs. 21A-21D . Thecarrier 2202 may also be generally as described above for thecarrier 2102, except as noted here. As with theassembly 2100, the soft-bulb portion 2201 and thecarrier 2202 may be formed separately and then mechanically coupled together to form anassembly 2200 as shown inFig. 22 . - The
carrier 2202, such as illustrated inFig. 22 , includes acarrier body 2203, nubs 2204,stabilizers 2205, afirst protrusion 2206, and asecond protrusion 2207. In some embodiments asupport rod 2211 may be inserted into the soft-bulb portion 2201 to provide additional stiffness to theassembly 2200. Thesupport rod 2211 may be thesupport rod 2112 that is described above forFigs. 21A-21D . - The
first protrusion 2206 and thesecond protrusion 2207 are configured to receive between them a portion, such as an edge, of aflexible sheet 2208 and aspline 2209. Theflexible sheet 2208, such as a plastic film or a screen, is pinched between thespline 2209, thefirst protrusion 2206, and thesecond protrusion 2207 to securely attach theflexible sheet 2208 to thecarrier 2202. In some embodiments, thecarrier 2202 is symmetrical about avertical centerline 2210, such that there is thefirst protrusion 2206 and thesecond protrusion 2207 have corresponding, mirrored features on the left side of thevertical centerline 2210. - Throughout the foregoing, all measurements were provided in inches (i.e. imperial) units in the original text, and hence the imperial units are the definitive units. As such, all metric units provided are nearest reasonable equivalents, by way of example only.
- Some embodiments of the invention have been described above, and in addition, some specific details are shown for purposes of illustrating the inventive principles. However, numerous other arrangements may be devised in accordance with the inventive principles of this patent disclosure. Further, well known processes have not been described in detail in order not to obscure the invention. Thus, while the invention is described in conjunction with the specific embodiments illustrated in the drawings, it is not limited to these embodiments or drawings. Rather, the invention is intended to cover alternatives, modifications, and equivalents that come within the scope of the appended claims.
Claims (12)
- A system for mounting a secondary, rigid panel (130) within a window frame of an existing window in a building, the system comprising:a rigid panel (130) having an edge;an elongated, deformable bulb (2101) having:a resilient portion (110),a base section (2105),an extension (2109) extending from the base section (2105), and including an aperture (2111) through the extension (2109),
anda crosspiece (2110) coupled to a distal end (2113) of the extension (2109), the crosspiece (2110) including a pair of shoulders (2114) at opposite ends of the crosspiece (2110), each shoulder (2114) protruding laterally beyond the extension (2109) extending from the base section (2105); andan elongated carrier (2102) configured to receive at least a portion of the edge of the panel (130) within a panel gap (2131) of the carrier (2102), the carrier (2102) having a receiving slot (2132) opposite the panel gap (2131), the receiving slot (2132) having a neck (2133) laterally narrower than an interior cavity (2134) of the receiving slot (2132), the receiving slot (2132) configured to securely receive the crosspiece (2110) of the bulb (2101) and to confine the shoulders (2114) of the crosspiece (2110), characterized in that an elongated support rod (2112) is inserted through the aperture (2111). - The system of claim 1, in which the aperture (2111) is generally rectangular and has two pairs of opposing parallel edges (2118).
- The system of claim 2, in which the support rod (2112) contacts at least one of the pairs of opposing parallel edges (2118).
- The system of any preceding claim, in which the bulb (2101) further includes friction ribs (2104) on an outer portion of the resilient portion (110) of the bulb (2101), the friction ribs (2104) configured to increase friction between the bulb (2101) and the window frame.
- The system of any preceding claim, in which the bulb (2101) has an internal corner groove (2108) at a transition between the resilient portion (110) and the base section (2105) of the bulb (2101).
- The system of any preceding claim, wherein the carrier (2102) further includes yieldable nubs (2129) within the panel gap (2131), the nubs (2129) structured to support and retain the panel (130)within the carrier (2102).
- The system of claim 5 or 6, in which the bulb (2101) further includes friction ribs (2104) on an outer portion of the resilient portion (110) of the bulb (2101), the friction ribs (2104) configured to increase friction between the bulb (2101) and the window frame.
- The system of claim 6 or 7, in which the bulb (2101) has an internal corner groove (2108) at a transition between the rounded portion and the base section (2105) of the bulb (2101).
- The system of any preceding claim, wherein the carrier (2102) further includes stabilizers (2130) on opposing sides within the panel gap (2131), the stabilizers (2130) configured to provide lateral stability to the panel (130) within the carrier (2102).
- The system of claim 9, in which the bulb (2101) further includes friction ribs (2104) on an outer portion of the resilient portion (110) of the bulb (2101), the friction ribs (2104) configured to increase friction between the bulb (2101) and the window frame; and/or
wherein the bulb (2101) has an internal corner groove (2108) at a transition between the rounded portion and the base section (2105) of the bulb (2101). - The system of any preceding claim, wherein the carrier (2102) further includes a first protrusion (2206) and a second protrusion (2207) extending laterally away from a first side of the elongated carrier (2102), the first protrusion (2206) and the second protrusion (2207) being configured to receive between them an edge of a flexible sheet (2208) and an elongated spline (2209), the flexible sheet (2208) being pinched between the spline (2209), the first protrusion (2206), and the second protrusion (2207).
- The system of claim 13, in which the bulb (2101) further includes friction ribs (2104) on an outer portion of the resilient portion (110) of the bulb (2101), the friction ribs (2104) configured to increase friction between the bulb (2101) and the window frame.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/150,191 US9580954B2 (en) | 2009-10-05 | 2016-05-09 | Press fit storm window system |
US15/411,577 US9752373B2 (en) | 2009-10-05 | 2017-01-20 | Press fit storm window system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3243994A1 EP3243994A1 (en) | 2017-11-15 |
EP3243994B1 true EP3243994B1 (en) | 2019-01-30 |
Family
ID=58701449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP17170267.3A Active EP3243994B1 (en) | 2016-05-09 | 2017-05-09 | Press fit storm window system |
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EP (1) | EP3243994B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102020127347A1 (en) | 2020-10-16 | 2022-04-21 | Wsvk Oederan Gmbh | Modular storm protection |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5887392A (en) * | 1997-02-10 | 1999-03-30 | Amesbury Group, Inc. | Window jambliner with removably attached members for biasing and sealing |
US6874218B2 (en) * | 2002-07-25 | 2005-04-05 | Pilkington North America, Inc. | Apparatus and method for attaching a seal to an encapsulated window assembly |
UA16513U (en) * | 2003-08-09 | 2006-08-15 | Rehau Ag And Co | Tightening profile for slide cover of cooling apparatus |
US9255438B2 (en) * | 2009-10-05 | 2016-02-09 | R Value, Inc. | Press fit storm window system |
US9512666B2 (en) * | 2012-12-07 | 2016-12-06 | Quanta Technologies, Inc. | Air infiltration reduction system, insulating panel assembly, mounting assembly, and method of installing the same |
-
2017
- 2017-05-09 EP EP17170267.3A patent/EP3243994B1/en active Active
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