USRE37086E1 - Floor register mounting frame - Google Patents
Floor register mounting frame Download PDFInfo
- Publication number
- USRE37086E1 USRE37086E1 US09/480,940 US48094000A USRE37086E US RE37086 E1 USRE37086 E1 US RE37086E1 US 48094000 A US48094000 A US 48094000A US RE37086 E USRE37086 E US RE37086E
- Authority
- US
- United States
- Prior art keywords
- fitting
- flange
- register
- floor
- face
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/082—Grilles, registers or guards
- F24F13/084—Grilles, registers or guards with mounting arrangements, e.g. snap fasteners for mounting to the wall or duct
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
Definitions
- This invention relates to the installation of registers and grilles used as air outlets or inlets in warm air heating, ventilating, and air conditioning systems, specifically to floor mounted registers.
- the hole through the floor surface must be cut perfectly square and accurate. If the hole is cut too large, it will cause spaces, or gaps between the boot and flooring allowing air leakage between conditioned and unconditioned spaces, and allow undesirable lateral movement, and/or twisting of the register. Fasteners could be driven through the face of the register into the flooring, however they would be visible and unattractive, and could pose a hazard to a barefoot person.
- the register will either not fit, or will have to be forced into the hole, causing binding of volume damper blades or other moving parts on the register.
- This installation procedure generally requires two people, since one person must hold the boot into the hole from below the floor, to prevent it from falling out of the hole, while the second person fastens the boot to the flooring from above.
- a duct connection flange described in U.S. Pat No. 4,566,724 to Arnoldt et al utilizes a protuberance arrangement that eliminates the need for external fasteners when connecting it to a duct, but requires full engagement of the duct before any fastening takes place. If the installer needs to reposition after partially engaging a corner or side of the duct, it may fall free of the flange if pressure is released. This is especially true when making a vertical connection, due to gravity. Also, because of its physical configuration this device would not fit into the hole from above the flooring. Therefore to use this device for the above application it would have to be fastened from below the floor making it cumbersome to install, and difficult to seal. Also, any device that creates a flange on the perimeter of the holes, underside could interfere with floor joists or framing members adjacent to the hole.
- U.S. Pat. No. 5,472,380 to Sarazen, Jr. et al improves the original method by using a two piece snap together register which holds the register fast in the hole to prevent lateral, or twisting of the register after installation, without leaving any fasteners exposed from above.
- This invention does not make provisions for connection of the boot, but relies on creating an outwardly turned flange to be fastened to the underside of the floor surface. This requires overhead nailing which can be difficult in a confined space between floor joists as is commonly encountered in this situation. Also to achieve an airtight seal, would be difficult, since the underside of most flooring systems tends to be rough and have imperfections such as gaps in floorboards, and nails protruding from above.
- FIG. 1A shows an enlarged cross section view of a connection flange.
- FIG. 1B shows an full view of a connection flange with a removable dust cover.
- FIG. 2 shows a connection flange installed into a hole in a wooden floor.
- FIG. 3 shows a complete installation including duct and floor register.
- FIGS. 1A and 1B illustrate a duct connection flange 11 comprising a horizontal flange face 12 having a rectangular inner and outer perimeter. Attached to and extending at a generally right angle from the inner perimeter of face 12 is a tubular vertical flange collar 10 . Collar 10 has four sides joined at right angles, and is defined as having a first end adjacent to face 12 and a second, or open end. Two pairs of parallel and oppositely faced retaining legs 14 extend from the first end of the inner side of collar 10 to create receiving channels 18 along four sides on the open end of collar 10 . Attached to the channel facing side of legs 14 and running parallel to the intersection of face 12 and leg 14 are a plurality of retaining teeth 16 .
- teeth 16 are equal in length to legs 14 , have a triangular cross section, and are angled toward the first end of collar 10 .
- Located within channels 18 is a compressible gasket 28 .
- Gasket 28 is continuous, encircling the inner perimeter of face 12 .
- a plurality of locking tabs 34 extend from a point along the untoothed face of leg 14 .
- Tabs 34 have a generally triangular cross section, extend from leg 34 at an angle of less than 90 degrees and face toward the open end of collar 10 .
- FIG. 2 depicts flange 12 set into a hole cut through wooden flooring 30 .
- a plurality of screw or nail type fasteners 22 pass through screw holes 20 in face 12 .
- FIG. 3 displays the above described device as a complete installation with the addition of floor register 24 comprising an angular frame 36 , to which are attached multiple air directing vanes 40 arranged to channel passing air in a desired direction and pattern.
- a plurality of engagement tabs 42 extend outward from register 24 and are located in a position that allows alignment and engagement with locking tabs 34 .
- Floor boot 26 is pre-fabricated from sheet material, having a first end of sufficient size and shape to allow insertion into receiving channel 18 and a second generally round end sized to allow connection to the air distribution system.
- a plurality of snap locks 32 are created along the first end of boot 26 forming a protrusion or dimple with a lanced edge, on the sheet material.
- the invention described above may be manufactured from a suitable moldable material, preferably plastic (such as ABS, polyvinyl chloride, or polyethylene).
- plastic such as ABS, polyvinyl chloride, or polyethylene.
- a hole of sufficient size and shape is cut through wooden flooring material 30 .
- a connection flange 11 is inserted into this hole from above until flange face 12 makes contact with flooring material 30 .
- Flange 11 is then positioned within the hole to orient it parallel and square with room walls and partitions.
- fasteners 22 screws or nails
- FIG. 2 This stage of installation is shown in FIG. 2 .
- boot 26 The first end of boot 26 is inserted from below into channel 18 .
- Legs 14 alternately deflect and spring to their original position due to interference between teeth 16 and snap locks 32 causing a ratcheting action.
- the angle of teeth 16 and the lanced edge of snap locks 32 allow movement of boot 26 in this direction only. Because of this, at any point along this ratcheting action, boot 26 may be released by the installer's hands, and will remain supported by the flange 11 . This allows the installer to partially install one easily accessible side, or corner, of boot 26 , reposition hands or body for better visual perspective, or access to the remaining sides, or corners, then continue installing boot 26 .
- boot 26 As the first end of boot 26 is pushed further into channel 18 it will first contact, then compress gasket 28 . This will effectively create an air tight seal between boot 26 and flange 11 .
- the Floor register mounting frame provides a simple, efficient, air-tight method to install a floor mounted air outlet using only one person. It allows for some inaccuracy in the hole cut through the flooring, without sacrificing the integrity or air-tightness of the finished job. It also allows flexibility in respect to method of boot installation, through temporary fastening.
- channels 18 may be placed on only two sides of flange 11 .
- flange 11 may or may not include a removable dust cover 44 to prevent foreign matter from entering duct system during construction.
- Gasket 28 may be continuous and seamless, or consist of separate pieces, and may be held in place by friction, or by using an adhesive. Retaining legs 14 may be joined on their ends to provide rigidity, or may not be joined to allow flexibility of legs 14 .
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Floor Finish (AREA)
Abstract
A connection flange, used to fasten a floor register to a precut hole while providing an integral connection means for an air duct fitting.
Description
1. Field of Invention
This invention relates to the installation of registers and grilles used as air outlets or inlets in warm air heating, ventilating, and air conditioning systems, specifically to floor mounted registers.
2. Description of Prior Art
Heretofore, installers of heating, and air conditioning systems would install floor mounted registers in the following manner. A generally rectangular hole, somewhat larger than the register to be installed, would be cut through a wooden floor surface. Placed into this hole, from below, would be a duct fitting commonly refered to as a boot, generally pre-fabricated from a sheet material, having a first end of sufficient size and shape to allow insertion of the grille or register, and a second generally round end to allow connection to the air distribution system. After fastening the boot to the floor surface with screws or nails the register is inserted into the boot from above, being held in place by a combination of friction and gravity.
When using this method, the hole through the floor surface must be cut perfectly square and accurate. If the hole is cut too large, it will cause spaces, or gaps between the boot and flooring allowing air leakage between conditioned and unconditioned spaces, and allow undesirable lateral movement, and/or twisting of the register. Fasteners could be driven through the face of the register into the flooring, however they would be visible and unattractive, and could pose a hazard to a barefoot person.
If the hole is cut too small, or not perfectly square, the register will either not fit, or will have to be forced into the hole, causing binding of volume damper blades or other moving parts on the register.
When fastening the boot to the floor surface, one must exercise caution not to split the flooring material since this sometimes happens when nailing or screwing into the end grain of plywood or solid flooring. These fasteners must be driven in perfectly flush with the inner surface of the boot so they will not interfere with the insertion of the register.
This installation procedure generally requires two people, since one person must hold the boot into the hole from below the floor, to prevent it from falling out of the hole, while the second person fastens the boot to the flooring from above.
A duct connection flange described in U.S. Pat No. 4,566,724 to Arnoldt et al utilizes a protuberance arrangement that eliminates the need for external fasteners when connecting it to a duct, but requires full engagement of the duct before any fastening takes place. If the installer needs to reposition after partially engaging a corner or side of the duct, it may fall free of the flange if pressure is released. This is especially true when making a vertical connection, due to gravity. Also, because of its physical configuration this device would not fit into the hole from above the flooring. Therefore to use this device for the above application it would have to be fastened from below the floor making it cumbersome to install, and difficult to seal. Also, any device that creates a flange on the perimeter of the holes, underside could interfere with floor joists or framing members adjacent to the hole.
U.S. Pat. No. 5,472,380 to Sarazen, Jr. et al improves the original method by using a two piece snap together register which holds the register fast in the hole to prevent lateral, or twisting of the register after installation, without leaving any fasteners exposed from above. This invention however, does not make provisions for connection of the boot, but relies on creating an outwardly turned flange to be fastened to the underside of the floor surface. This requires overhead nailing which can be difficult in a confined space between floor joists as is commonly encountered in this situation. Also to achieve an airtight seal, would be difficult, since the underside of most flooring systems tends to be rough and have imperfections such as gaps in floorboards, and nails protruding from above.
Accordingly, several objects and advantages of the present invention are:
(a) to achieve an air tight seal between conditioned and unconditioned spaces when installing an air register into a floor.
(b) to provide a system that allows for some inaccuracy in the hole cut through the floor, without sacrificing quality of the installation.
(c) to provide a means to fasten the register to the floor, without fasteners being visible or exposed after installation.
(d) to provide a means for duct connection without using external fasteners.
(e) to provide a means by which one person alone may easily complete the installation.
(f) to provide temporary fastening of boot when installed partially into duct connection, before full engagement, to allow repositioning of installer or installers hands, without boot falling from position.
(g) to provide a means to secure the boot to the top (most uniform) surface of the flooring.
Further objects and advantages will become apparent from a consideration of the ensuing description and drawings.
FIG. 1A shows an enlarged cross section view of a connection flange.
FIG. 1B shows an full view of a connection flange with a removable dust cover.
FIG. 2 shows a connection flange installed into a hole in a wooden floor.
FIG. 3 shows a complete installation including duct and floor register.
10 | vertical flange collar | 11 | |
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12 | horizontal flange face | 14 | |
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16 | retaining |
18 | receiving |
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20 | |
22 | |
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24 | |
26 | |
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28 | |
30 | |
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32 | |
34 | |
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36 | |
40 | |
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42 | |
44 | dust cover | ||
FIGS. 1A and 1B illustrate a duct connection flange 11 comprising a horizontal flange face 12 having a rectangular inner and outer perimeter. Attached to and extending at a generally right angle from the inner perimeter of face 12 is a tubular vertical flange collar 10. Collar 10 has four sides joined at right angles, and is defined as having a first end adjacent to face 12 and a second, or open end. Two pairs of parallel and oppositely faced retaining legs 14 extend from the first end of the inner side of collar 10 to create receiving channels 18 along four sides on the open end of collar 10. Attached to the channel facing side of legs 14 and running parallel to the intersection of face 12 and leg 14 are a plurality of retaining teeth 16. These teeth 16 are equal in length to legs 14, have a triangular cross section, and are angled toward the first end of collar 10. Located within channels 18 is a compressible gasket 28. Gasket 28 is continuous, encircling the inner perimeter of face 12. A plurality of locking tabs 34 extend from a point along the untoothed face of leg 14. Tabs 34 have a generally triangular cross section, extend from leg 34 at an angle of less than 90 degrees and face toward the open end of collar 10.
FIG. 2 depicts flange 12 set into a hole cut through wooden flooring 30. A plurality of screw or nail type fasteners 22 pass through screw holes 20 in face 12.
FIG. 3 displays the above described device as a complete installation with the addition of floor register 24 comprising an angular frame 36, to which are attached multiple air directing vanes 40 arranged to channel passing air in a desired direction and pattern. A plurality of engagement tabs 42 extend outward from register 24 and are located in a position that allows alignment and engagement with locking tabs 34. Floor boot 26 is pre-fabricated from sheet material, having a first end of sufficient size and shape to allow insertion into receiving channel 18 and a second generally round end sized to allow connection to the air distribution system. A plurality of snap locks 32 are created along the first end of boot 26 forming a protrusion or dimple with a lanced edge, on the sheet material.
The invention described above may be manufactured from a suitable moldable material, preferably plastic (such as ABS, polyvinyl chloride, or polyethylene).
The method of installing the present invention and the function of its parts is described below. A hole of sufficient size and shape is cut through wooden flooring material 30. A connection flange 11 is inserted into this hole from above until flange face 12 makes contact with flooring material 30. Flange 11 is then positioned within the hole to orient it parallel and square with room walls and partitions. At this time fasteners 22 (screws or nails) may be installed through screw holes 20 into flooring 30. This stage of installation is shown in FIG. 2.
The first end of boot 26 is inserted from below into channel 18. Legs 14 alternately deflect and spring to their original position due to interference between teeth 16 and snap locks 32 causing a ratcheting action. The angle of teeth 16 and the lanced edge of snap locks 32 allow movement of boot 26 in this direction only. Because of this, at any point along this ratcheting action, boot 26 may be released by the installer's hands, and will remain supported by the flange 11. This allows the installer to partially install one easily accessible side, or corner, of boot 26, reposition hands or body for better visual perspective, or access to the remaining sides, or corners, then continue installing boot 26.
As the first end of boot 26 is pushed further into channel 18 it will first contact, then compress gasket 28. This will effectively create an air tight seal between boot 26 and flange 11.
Accordingly, the reader will see that the Floor register mounting frame provides a simple, efficient, air-tight method to install a floor mounted air outlet using only one person. It allows for some inaccuracy in the hole cut through the flooring, without sacrificing the integrity or air-tightness of the finished job. It also allows flexibility in respect to method of boot installation, through temporary fastening.
Although the description above contains many specificities, these should not be construed as limiting the scope of the invention but as merely providing an illustration of the preferred embodiment. For example, channels 18 may be placed on only two sides of flange 11. Also flange 11 may or may not include a removable dust cover 44 to prevent foreign matter from entering duct system during construction. Gasket 28 may be continuous and seamless, or consist of separate pieces, and may be held in place by friction, or by using an adhesive. Retaining legs 14 may be joined on their ends to provide rigidity, or may not be joined to allow flexibility of legs 14.
Thus the scope of the invention should be determined by the appended claims and their legal equivalents, rather than by the examples given.
Claims (4)
1. A connection flange, used to fasten a floor register to a precut hole while providing a connection for an air duct fitting, comprising:
a face with a generally rectangular tubular inner and outer perimeter,
a tubular member with a first end extending from the inner perimeter of said face and a second end,
said tubular member containing a continuous channel open to said second end to allow insertion of the end portion of said fitting
said channel having a plurality of teeth extending into said channel to provide a retaining means for said fitting,
said fitting comprising:
one or more protuberances located along the surface of said fitting adjacent to said end portion of said fitting, said protuberances positioned to allow movement of said fitting only in a direction which moves said fitting closer to said face.
2. The flange in claim 1 further including a sealing means located within said channel to prevent air leakage.
3. The flange in claim 1 further including one or more protuberances extending from the inner perimeter of said tubular member to provide fastening means for said register.
4. The flange in claim 1 further including a removable dust cover.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/480,940 USRE37086E1 (en) | 1998-02-23 | 2000-01-11 | Floor register mounting frame |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/028,261 US5928078A (en) | 1998-02-23 | 1998-02-23 | Floor register mounting frame |
US09/480,940 USRE37086E1 (en) | 1998-02-23 | 2000-01-11 | Floor register mounting frame |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/028,261 Reissue US5928078A (en) | 1998-02-23 | 1998-02-23 | Floor register mounting frame |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE37086E1 true USRE37086E1 (en) | 2001-03-06 |
Family
ID=21842441
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/028,261 Ceased US5928078A (en) | 1998-02-23 | 1998-02-23 | Floor register mounting frame |
US09/480,940 Expired - Fee Related USRE37086E1 (en) | 1998-02-23 | 2000-01-11 | Floor register mounting frame |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/028,261 Ceased US5928078A (en) | 1998-02-23 | 1998-02-23 | Floor register mounting frame |
Country Status (1)
Country | Link |
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US (2) | US5928078A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050003754A1 (en) * | 2002-07-11 | 2005-01-06 | Allan Pilger | Boot hanger mounting bracket |
US6866579B2 (en) | 2002-07-11 | 2005-03-15 | Applied Applications International, Inc. | Boot hanger mounting bracket |
US20060025067A1 (en) * | 2003-12-24 | 2006-02-02 | Juergen Koessler | Vent apparatus |
US20060105700A1 (en) * | 2004-11-18 | 2006-05-18 | Hadlock Leonard R Jr | Duct |
US20070123161A1 (en) * | 2002-07-11 | 2007-05-31 | Allan Pilger | Boot hanger mounting bracket |
US7338095B1 (en) | 2005-12-05 | 2008-03-04 | Dura-Tite Systems, Llc | Plastic heating duct connectors |
US20100003913A1 (en) * | 2008-06-30 | 2010-01-07 | John Patrick Sanchez | Hvac air duct vent cover and methdology for its use |
US20100112928A1 (en) * | 2008-11-03 | 2010-05-06 | Airex Inc. | Adaptable exhaust box |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6234894B1 (en) | 2000-03-13 | 2001-05-22 | Mark A. Goracke | Forced air vent register |
FR2827368B1 (en) * | 2001-07-13 | 2003-11-14 | Dixneuf Atel | DEVICE FOR THE DIFFUSION OF LIQUID OR GASEOUS FLUIDS |
US7258607B1 (en) * | 2004-03-12 | 2007-08-21 | Machiorlette Steven C | Return air grille assembly |
WO2005114057A1 (en) * | 2004-04-19 | 2005-12-01 | Applied Applications International, Inc. | Boot hanger mounting bracket |
US7771259B2 (en) * | 2005-09-20 | 2010-08-10 | Michael Pettit | Flush mounted frame for an access panel or register |
US20070232217A1 (en) * | 2006-04-04 | 2007-10-04 | Davis Michael C | Vent cover |
US10871305B2 (en) * | 2014-01-06 | 2020-12-22 | Oemetrix, L.L.C. | Dry wall extrusion grille |
US9765988B2 (en) * | 2014-01-06 | 2017-09-19 | Oemetrix, L.L.C. | Dry wall extrusion grille |
US20150260427A1 (en) * | 2014-03-17 | 2015-09-17 | Darryl L. Snyder | Connector frame for duct boot |
US11402121B2 (en) * | 2015-03-25 | 2022-08-02 | Sterling Custom Sheet Metal, Inc. | Insulated register box with boot rail adaptor |
US20170082316A1 (en) * | 2015-09-18 | 2017-03-23 | John T. Miller | Air flow deflector attachment and system |
US10508445B2 (en) * | 2016-11-07 | 2019-12-17 | Carl H Voellmecke, III | Housing apparatus for installation of ceiling or wall-mounted electrical appliances |
JP7142358B2 (en) * | 2019-06-28 | 2022-09-27 | 株式会社アステム | Frame for air valve, anti-slip member |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1336210A (en) * | 1919-08-18 | 1920-04-06 | George W Druliner | Register |
US3236171A (en) * | 1964-06-29 | 1966-02-22 | Vaskov Ind Inc | Air circulation register attachment device |
US4566724A (en) * | 1982-12-20 | 1986-01-28 | Ductmate Industries, Inc. | Duct joint frame |
US5472380A (en) * | 1994-05-26 | 1995-12-05 | Sarazen, Jr.; Paul M. | Modular forced-air floor register with filter |
-
1998
- 1998-02-23 US US09/028,261 patent/US5928078A/en not_active Ceased
-
2000
- 2000-01-11 US US09/480,940 patent/USRE37086E1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1336210A (en) * | 1919-08-18 | 1920-04-06 | George W Druliner | Register |
US3236171A (en) * | 1964-06-29 | 1966-02-22 | Vaskov Ind Inc | Air circulation register attachment device |
US4566724A (en) * | 1982-12-20 | 1986-01-28 | Ductmate Industries, Inc. | Duct joint frame |
US5472380A (en) * | 1994-05-26 | 1995-12-05 | Sarazen, Jr.; Paul M. | Modular forced-air floor register with filter |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050003754A1 (en) * | 2002-07-11 | 2005-01-06 | Allan Pilger | Boot hanger mounting bracket |
US6866579B2 (en) | 2002-07-11 | 2005-03-15 | Applied Applications International, Inc. | Boot hanger mounting bracket |
US7140960B2 (en) | 2002-07-11 | 2006-11-28 | Applied Applications International, Inc. | Boot hanger mounting bracket |
US20070123161A1 (en) * | 2002-07-11 | 2007-05-31 | Allan Pilger | Boot hanger mounting bracket |
US7645189B2 (en) | 2002-07-11 | 2010-01-12 | Applied Applications International, Inc. | Boot hanger mounting bracket |
US20060025067A1 (en) * | 2003-12-24 | 2006-02-02 | Juergen Koessler | Vent apparatus |
US20060105700A1 (en) * | 2004-11-18 | 2006-05-18 | Hadlock Leonard R Jr | Duct |
US7390251B2 (en) * | 2004-11-18 | 2008-06-24 | Leonard R. Hadlock, Jr. | Air duct cover and boot |
US7338095B1 (en) | 2005-12-05 | 2008-03-04 | Dura-Tite Systems, Llc | Plastic heating duct connectors |
US20100003913A1 (en) * | 2008-06-30 | 2010-01-07 | John Patrick Sanchez | Hvac air duct vent cover and methdology for its use |
US20100112928A1 (en) * | 2008-11-03 | 2010-05-06 | Airex Inc. | Adaptable exhaust box |
Also Published As
Publication number | Publication date |
---|---|
US5928078A (en) | 1999-07-27 |
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