GB2453954A - Anti lift blocking member for a patio door - Google Patents

Anti lift blocking member for a patio door Download PDF

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Publication number
GB2453954A
GB2453954A GB0720718A GB0720718A GB2453954A GB 2453954 A GB2453954 A GB 2453954A GB 0720718 A GB0720718 A GB 0720718A GB 0720718 A GB0720718 A GB 0720718A GB 2453954 A GB2453954 A GB 2453954A
Authority
GB
United Kingdom
Prior art keywords
panel
door
door panel
frame
blocking member
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.)
Withdrawn
Application number
GB0720718A
Other versions
GB0720718D0 (en
Inventor
Anthony Lee Hughes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Epwin Group PLC
Original Assignee
Epwin Group PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Epwin Group PLC filed Critical Epwin Group PLC
Priority to GB0720718A priority Critical patent/GB2453954A/en
Publication of GB0720718D0 publication Critical patent/GB0720718D0/en
Publication of GB2453954A publication Critical patent/GB2453954A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
    • E05D15/0621—Details, e.g. suspension or supporting guides
    • E05D15/066—Details, e.g. suspension or supporting guides for wings supported at the bottom
    • E05D15/0691—Top guides
    • 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
    • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
    • E06B3/42—Sliding wings; Details of frames with respect to guiding
    • E06B3/46—Horizontally-sliding wings
    • 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
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/11—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against burglary
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Wing Frames And Configurations (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

A patio door assembly is provided, including a slidable door panel 1 in a door frame 2. The panel 1 has a blocking member 9, which projects into a clearance 7 between the door panel 1 and the door frame, thus limiting the upward movement of the panel in the frame. The door may have two blocking members, preferably situated on either end of the door. The blocking member may be a straight metal plate but also could be bent in a variety of configurations (Figure 4). A method of retrofitting a sliding patio door with a blocking member is also disclosed. The blocking member prevents a burglar or other intruder from lifting the sliding door panel into the clearance gap and then removing the door panel by pivoting it out of the plane of the frame.

Description

_____ 2453954
PATIO DOOR
This invention is in the field of sliding doors,
especially patio doors. More particularly, the invention relates to patio doors with added security features.
Patio doors are a common means of entry by burglars, so it is important to fit locks to secure the doors against unauthorised entry. However, even with multiple locks in place, sliding patio doors may still be vulnerable to attack by levering the sliding panel out of its frame.
Typical sliding leaf patio doors are fitted into an outer frame which constrains and locates the sliding leaf at the bottom and the top. The leaf is supported on rollers which roll on a track at the bottom of the frame. For reasons of manufacture and installation, the patio door requires clearances between the leaf and the frame at the bottom and top of the leaf.
This means that, if the leaf can be forced upwards into the clearance between the frame and the top of the leaf, it may be possible to force the leaf from its frame.
At its most general, the present invention relates to a sliding door with a device to project into the clearance at the top of the door, to limit vertical movement of the sliding leaf, thus improving security against intrusion.
A first aspect of the present invention provides a door assembly, including a slidable door panel located in a frame, having a clearance between the frame and the top of the door panel, wherein the door panel includes a lock, located on a side edge of the door panel, and a blocking member attached to the opposite side edge of the door panel, wherein the blocking member projects from the top of the panel into the clearance and limits upward movement of the panel into the clearance, but does not block lateral sliding of the door panel in the frame As discussed above, sliding door assemblies are well known in the art and are typically used e.g. for patio doors.
The door assemblies consist of an outer door frame, in which the sliding doors themselves are mounted. The door panels are supported on rollers at the base of the frame and slide laterally within the frame to open and close the door. There may be one or more fixed door panels in addition to one or more sliding panels.
The present invention relates to door assemblies having a clearance between the top of the door panel and the frame. The clearance is necessary to enable the door to be inserted into its frame during the installation of the door assembly. This means that there is a gap, extending vertically from the top of the panel to the inside top edge of the outer frame.
Typically this clearance is approximately 15 mm in height.
There may be more than one clearance, for example if the top of the door panel is shaped to cooperate with the shape of the outer frame, there may be clearances between each top surface of the panel and the corresponding part of the frame.
The slidable door panel is preferably a sliding patio door panel, and may also be called a sliding door leaf or sash. Such door panels are well known in the art and are generally rectangular in shape, the long sides of the rectangle usually being vertical when the door is installed in a door frame. The door panel has edges which define the outer boundary of the panel. As used herein, the side edges' therefore correspond to the vertical sides of the rectangle.
The edges also have a depth, or thickness, that can vary depending on the materials used to construct the door panels.
Glass panel doors are particularly popular for patio doors.
These doors are usually made from wooden, metal or plastic frames into which glass panels, often double glazed panels, are mounted.
The door panel in the door assembly of the invention has a blocking member projecting from the top of the panel into the clearance between the top of the panel and the door frame.
In the first aspect of the invention, the door panel also includes a lock which is located on a side edge of the door panel. As used herein, the term lock' may refer to a lock body, containing a locking portion, e.g. a cylinder or bolt, or equally may refer to a plate through which a locking portion is received, sometimes called a strike plate.
In this aspect of the invention, the blocking member is attached to the side edge of the door panel which is opposite the lock, and projects therefrom, above the top edge of the panel into the clearance. The blocking member in this aspect of the invention may project from a top corner of the rectangle defined by the panel boundary, which is the corner above the edge opposite the lock.
A second aspect of the present invention provides a door assembly including a slidable door panel located in a frame, having a clearance between the frame and the top of the door panel, wherein the door panel includes a blocking member, which projects from the top of the door panel at a position between the side edges of the panel, and wherein the blocking member limits upward movement of the panel.into the clearance, but does not block lateral sliding of the door panel in the frame.
The door panel in the door assembly of the second aspect need not have a lock, although a lock may optionally be present. Door panels suitable for use in the second aspect of the invention are as described above.
In this aspect of the invention, the blocking member projects from a position between the side edges of the panel.
By this is meant that it projects upwards from a point between, but not including, the two top corners of the rectangle defined by the panel boundary. In some embodiments the blocking member may be fixed in, and project from, a groove in a side edge, but is not fixed on the edge itself.
In the door assemblies of the invention, the blocking member may be of any shape, provided that it can project upwards into the clearance to limit vertical movement of the panel. The blocking member preferably projects to a height which is less than 7 mm short of the top of the inside of the frame, more preferably less than 6 mm, even more preferably less than 5mm. This ensures that the door panel cannot be sufficiently forced up to facilitate levering of the door out of the frame. In some preferred embodiments the blocking member may be adjustable, so that the ideal height can be set when the panel is installed or replaced in the door assembly.
The blocking member is a projection from the top of the door panel, and may be integral with the panel itself.
Alternatively the blocking member may be a separate element attachable to the door panel. In some preferred embodiments the blocking member may be formed from a metal plate which may be attached to an edge of the panel. The plate may be bent, to enable attachment to the top or the side edges. Alternatively, or additionally, the plate may be located in a groove at the side of the door panel, and be fixed such that it projects above the top of the panel. In door assemblies according to the second aspect, the blocking member may be a flat plate, preferably a metal plate, attached to the side edge opposite the lock edge, and arranged to project above the line of the panel top.
Other types of blocking member are also possible, such as blocks or lugs which may simply be fixed to the top edge of the door, for example by screw fixing or gluing. Existing door panels can be adapted for use in the door assembly of the invention by fixing to them a blocking member in an appropriate manner. A blocking member formed from a plate, more preferably a metal plate, of rectangular cross-section may therefore be preferred, as this makes the part easy to manufacture and easy to locate in grooves which may be present in the edge of the panel. It may be useful if the fixing arrangement for the blocking member includes a slot, together with holes. In this way the blocking member can be adjusted to the correct position, so that it takes up the clearance between the leaf and the frame but doesn't impede the free sliding action of the leaf. When a suitable position has been achieved, for example by trial and error when fitting or adapting the door assembly, the blocking device can then be finally secured in position.
The blocking member does not block lateral motion of the door panel in the frame. This means that the presence of the blocking member does not prevent the door's sliding motion and allows travel of the panel along its full range of lateral positions i.e. from a fully closed to a fully open position.
The door assembly may of course have other means to lock the door, which will prevent such sideways sliding motion, when in use. However these locking means are separate to the blocking member and, when the door is unlocked, the presence of the blocking member does not impede sliding of the door.
In some preferred embodiments of the first and second aspects of the invention1 more than one blocking member may project into the clearance from the top of the panel.
preferably, these are spaced apart, to prevent any possibility of the door panel being levered out by a twisting motion.
For example, a preferred embodiment of the door assembly of the first aspect may have a blocking member fixed to the side on which the lock is located as well as on the side opposite the lock. A door assembly of the second aspect may have a pair of blocking members each located in grooves in the opposing side edges. Alternatively, multiple blocking members or additional blocking members may be fixed to points along the top edge.
A further aspect of the present invention provides a door assembly, including a slidable door panel located in a frame, having a clearance between the frame and the top of the door panel, wherein the door panel includes two spaced apart blocking members which project above the top edge of the door panel into the clearance, wherein the blocking members limit upward movement of the panel into the clearance, but do not block lateral sliding of the door panel in the frame.
The blocking members may be attached to opposite sides of the door panel, for example. The door panel and blocking members may be as described above.
A further aspect of the present invention provides a method of fitting a door assembly, including the steps of: a) providing a door panel including a lock located on a side edge of the door panel, and a blocking member attached to the opposite side edge of the door panel, wherein the blocking member projects from the top of the door panel; b) slidably mounting the door panel in a frame, such that the blocking member projects into a clearance between the top of the door panel and the frame and limits upward movement of the panel into the clearance, but does not block lateral sliding of the door panel in the frame.
Another aspect of the invention provides a method of fitting a door assembly, including the steps of: a) providing a door panel including a blocking member, which projects from the top of the panel at a position between the side edges of the panel; b) slidably mounting the door panel in a frame, such that the blocking member projects into a clearance between the top of the door panel and the frame and limits upward movement of the panel into the clearance, but does not block lateral sliding of the door panel in the frame.
A still further aspect provides a method of fitting a door assembly, including the steps of: a) providing a door panel including two blocking members, which project from the top of the panel; b) slidably mounting the door panel in a frame, such that the blocking member projects into a clearance between the top of the door panel and the frame and limits upward movement of the panel into the clearance, but does not block lateral sliding of the door panel in the frame.
Advantageously, the blocking member can be fixed to the door panel after the door has been mounted in its frame, i.e. after the clearance has done its job of allowing the door to be inserted.
The methods may optionally include the step of adjusting the height of the blocking member, such that it limits upward movement of the panel into the clearance but does not block lateral sliding of the panel in the frame.
In some preferred embodiments the methods may involve adapting a door panel from a conventional door assembly by affixing thereto a blocking member as described herein.
Another aspect of the invention provides a method of adapting a slidable door panel in a door assembly, wherein the door panel is located in a frame with a clearance between the frame and the top of the door panel, including the step of: attaching to the door panel a blocking member to project from the top edge of the panel, such that the blocking member limits upward movement of the panel into the clearance but does not block lateral sliding of the door panel in the frame.
Preferably the blocking member is a plate, for example a metal plate, which is preferably affixed to a side edge of the door panel so as to project above the line of the top edge of the panel into the clearance. Most preferably the plate is fixed by screwing the plate to the edge of the panel. In preferred embodiments the plate has a longitudinal slot for passage of the screws and this slot enables the height of the plate above the panel top to be adjusted to the correct height to prevent leverage of the door panel while not blocking lateral sliding of the door. When a suitable position has been achieved, the device can then be finally fixed to ensure that it does not move throughout the lifetime of the door assembly.
In some preferred embodiments the plate is fixed in a groove in the side edge of the door panel.
An embodiment of the invention will now be described in detail, with reference to the accompanying drawings, in which: Figures].a and lb show an elevation and a vertical section respectively through the sliding leaf of a patio door.
Figure 2a shows a view of the top corner of a sliding sash having a blocking member attached.
Figure 2b shows a cross-section of a door panel showing a blocking member fixed in place in a groove in the side edge.
Figures 3a and 3b are vertical cross-sections showing two possible positions for a blocking member.
Figure 4a shows an adjustable fixing arrangement for a blocking member.
Figures 4b and 4c show alternative shaped blocking members.
A type of patio door to which the present invention is applicable is shown in Figure 1. The sliding leaf 1 of this type of door is fitted into an outer frame 2 which constrains and locates the leaf at the bottom 3 and the top 4. The leaf 1 is also constrained at the two vertical sides but this is not shown.
The sliding leaf 1 consists of a double glazed panel 10 which is held within a surround 11. The glass 10 is held in place at its edges, in a slot 12 in the surround 11, with a flexible seal or gasket 13 along either side.
The surround 11 which holds the glass panel is usually of moulded PVC-U and has a substantially hollow cross-section which may include several separate cavities 14. This arrangement produces a strong but light structure. The surround is substantially U-shaped in cross-section, with the outer frame 2 of the door assembly being shaped to cooperate with the shape of the surround 11. For example in Fig. 1 it can be seen that part of the outer frame 21 is received between the arms of the Ii. Brushes 15 create a seal between the frame and the surround.
The leaf 1 is supported on rollers 5 which roll on a track 6. The rollers 5 and track 6 are between the arms of the ti-shaped cross-section at the bottom of the leaf surround 11.
For reasons of manufacture and installation, the patio door requires clearances between the leaf and the frame at the top of the leaf 7 and at the bottom of the leaf 9. As discussed above, the panel surround is 0-shaped and so there is also a clearance 8 between the bottom of the U and the frame 2.
It can be seen from Figure 1 that the leaf 1 can be forced upwards, into clearance 7, rendering it possible to force the leaf 1 from the frame 2. Door assemblies according to the invention include blocking members to prevent this upward movement of the leaf.
The door shown in Figure 2 is fitted with a blocking member 9 according to one embodiment of the invention. Figure 2a shows a view of the top corner of the sliding sash. A flat metal plate 9 is fixed to the vertical edge of the sliding leaf. In Figure 2a the plate is fixed in a groove 25 in the edge of the panel, but, as shown in Figure 2b, it may be fixed to the projections 26 on either side of that groove 25. The metal plate 9 projects above the line of the top of the leaf 1, into the clearance 8. In this way vertical movement of the leaf relative to the frame is substantially reduced and the possibility of forced entry is minimised.
The metal plate shown in Figure 2 is a straight metal plate, but it could also be bent, for example a stepped arrangement is possible, as shown in Figure 4b, wherein the plate is fixed at the side edge but projects into the clearance at a position further along the top. Alternatively the plate could be fixed to the top edge and bent to project vertically into the clearance, as shown in Figure 4c.
Although not shown in this Figure, there may also be further blocking members on the door panel -for example a similar blocking member can be attached at the opposite top corner of the sliding leaf.
Figure 3 shows the vertical cross section of the top of the door assembly, with the position of the blocking member 9 indicated by a dotted line. In Fig 3a, the blocking member is fixed to one of the projections 26 of Fig 2b and projects into the clearance 7. In Fig 3b, the blocking member is fixed in the groove 25, as in Fig 2a, and projects into the clearance 8. In each case the blocking member projects to a height which is just short of the frame.
Distance h between the top of the blocking member and the frame is sufficient to prevent levering of the door out of the frame. As can be seen from Figure 3, attempts to move the door panel upwards will cause the blocking member to abut with the frame, impeding further upward movement. The panel can therefore only be lifted by distance h, rather than by the whole height of the clearance, and this is not enough to enable prising of the door out of the frame.
In the example shown in Figure 2, the device is a flat metal plate 9, of rectangular cross-section and is fixed to the side edge of the door panel by screws 20 passing through holes in the plate. An alternative arrangement is shown in Figure 4a, wherein the fixing arrangement includes a slot 21 in the plate, together with holes 22 in the door panel. This device is adjustable to the correct height above the door to take up the clearance between the leaf and the frame, without impeding the free sliding action of the leaf.

Claims (15)

  1. CLAiMS: 1. A door assembly, including a slidable door panel located in a frame, having a clearance between the frame and the top of the door panel, wherein the door panel includes a lock, located on a first side edge of the door panel, and a blocking member attached to a second side edge of the door panel, the second side edge being opposite the first side edge, wherein the blocking member projects from the top of the door panel into the clearance and limits upward movement of the panel into the clearance, but does not block lateral sliding of the door panel in the frame.
  2. 2. A door assembly, including a slidable door panel located in a frame, having a clearance between the frame * S. * * I * .. and the top of the door panel, wherein the door panel *S*. * S
    includes a blocking member, which projects from the top *S.S * . of the door panel into the clearance at a position S. S**s * S between the side edges of the panel, and wherein the *5 S I: blocking member limits upward movement of the panel into the clearance, but does not block lateral sliding of the door panel in the frame.
  3. 3. A door assembly according to claim 2, wherein the blocking member is fixed in a groove extending inwards from a side edge of the panel.
  4. 4. A door assembly according to any of claims 1 to 3, wherein the door panel includes a further blocking member which projects from the top of the door panel into the clearance, said further blocking member being spaced apart from the first blocking member along the top edge of the door panel.
  5. 5. A door assembly, including a slidable door panel located in a frame, having a clearance between the frame and the top of the door panel, wherein the door panel includes two blocking members spaced apart along the top edge of the door panel, which project from the top of the * ** * * a * door panel into the clearance, wherein the blocking * a *S..
    members limit upward movement of the panel into the *** * * clearance, but do not block lateral sliding of the door a..... * .
    panel in the frame. * .
    S S.
  6. 6. A door assembly according to claim 5, wherein the blocking members are attached to opposite side edges of the door panel.
  7. 7. A door assembly according to any of claims 1 to 6, wherein the blocking member projects to a height which is les5 than 7mm, 6mm, 5mm or 3mm shorter than the height of the clearance.
  8. 8. A door assembly according to any of claims 1 to 6, wherein the height to which the blocking member projects from the top of the door panel is adjustable.
  9. 9. A door assembly according to any of claims 1 to 8, wherein the blocking member is a metal plate attached to the panel.
  10. 10. A method of fitting a door assembly, including the steps of: a) providing a door panel including a lock located on a * I. first side edge of the door panel, and a blocking member *SS* * S **.S attached to a second side edge of the door panel, the S... * .
    second side edge being opposite the first side edge, S..... * .
    wherein the blocking member projects from the top of the S. * door panel; b) slidably mounting the door panel in a frame, such that the blocking member projects into a clearance between the top of the door panel and the frame and limits upward movement of the panel into the clearance, but does not block lateral sliding of the door panel in the frame.
  11. 11. A method of fitting a door assembly, including the steps of: a) providing a door panel including a blocking member, which projects from the top of the panel at a position between the side edges of the panel; b) slidably mounting the door panel in a frame, such that the blocking member projects into a clearance between the top of the door panel and the frame and limits upward movement of the panel into the clearance, but does not block lateral sliding of the door panel in the frame.
  12. 12. A method of fitting a door assembly, including the steps of: a) providing a door panel including two blocking members, which project from the top of the panel; * 0* * -* * *. b) slidably mounting the door panel in a frame, such that *** S * S **.
    the blocking member projects into a clearance between the * S top of the door panel and the frame and limits upward S..... * S
    movement of the panel into the clearance, but does not
    -S
    S S
    block lateral sliding of the door panel in the frame.
  13. 13. A method according to any of claims 10 to 12, including the step of adjusting the height to which the blocking member projects from the top of the door panel such that it limits upward movement of the panel into the clearance but does not block lateral sliding of the panel in the frame.
  14. 14. A method of adapting a slidable door panel in a door assembly, wherein the door panel is located in a frame with a clearance between the frame and the top of the door panel, including the step of: attaching to the door panel a blocking member to project from the top edge of the panel, such that the blocking member limits upward movement of the panel into the clearance but does not block lateral sliding of the door panel in the frame. * *. * -* *q
    S
  15. 15. A door assembly substantially as described herein, * with reference to and as illustrated in Figures 2 and 3, S.... * *
    or Fig. 4a, or Fig. 4b, or Fig. 4c of the accompanying a. * * ** * drawings.
    14. A method according to any of claims 10 to 13, wherein step a) includes adapting a door panel by fixing to it a blocking member.
GB0720718A 2007-10-23 2007-10-23 Anti lift blocking member for a patio door Withdrawn GB2453954A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0720718A GB2453954A (en) 2007-10-23 2007-10-23 Anti lift blocking member for a patio door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0720718A GB2453954A (en) 2007-10-23 2007-10-23 Anti lift blocking member for a patio door

Publications (2)

Publication Number Publication Date
GB0720718D0 GB0720718D0 (en) 2007-12-05
GB2453954A true GB2453954A (en) 2009-04-29

Family

ID=38829745

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0720718A Withdrawn GB2453954A (en) 2007-10-23 2007-10-23 Anti lift blocking member for a patio door

Country Status (1)

Country Link
GB (1) GB2453954A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2981976A1 (en) * 2011-11-02 2013-05-03 Norsk Hydro As Closure for opening of construction, has longitudinal cover fixed on sealing baffles alternately such that cover fixed on inner baffle is guided on outer guide rails, and cover fixed on outer baffle is guided on inner guide rails
FR3017407A1 (en) * 2014-02-13 2015-08-14 Kawneer France ANTI-LIFTING SAFETY FOR SLIDING WINDOWS AND SLIDING DOORS
US20200232271A1 (en) * 2017-05-12 2020-07-23 Iph International Pty Ltd Security door system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1544308A (en) * 1976-02-07 1979-04-19 Yoshida Kogyo Kk Window unit with sash removal prevention device
US4526412A (en) * 1983-07-05 1985-07-02 Alfred Gist Security device to prevent removal of sliding windows and doors
GB2200688A (en) * 1986-12-23 1988-08-10 Kavanagh Kenneth Gordon Sliding window or door
GB2225802A (en) * 1988-09-27 1990-06-13 Robert Leslie Hamilton Sliding door or window
US5228733A (en) * 1992-11-25 1993-07-20 Winters John R Safety lock for sliding glass doors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1544308A (en) * 1976-02-07 1979-04-19 Yoshida Kogyo Kk Window unit with sash removal prevention device
US4526412A (en) * 1983-07-05 1985-07-02 Alfred Gist Security device to prevent removal of sliding windows and doors
GB2200688A (en) * 1986-12-23 1988-08-10 Kavanagh Kenneth Gordon Sliding window or door
GB2225802A (en) * 1988-09-27 1990-06-13 Robert Leslie Hamilton Sliding door or window
US5228733A (en) * 1992-11-25 1993-07-20 Winters John R Safety lock for sliding glass doors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2981976A1 (en) * 2011-11-02 2013-05-03 Norsk Hydro As Closure for opening of construction, has longitudinal cover fixed on sealing baffles alternately such that cover fixed on inner baffle is guided on outer guide rails, and cover fixed on outer baffle is guided on inner guide rails
FR3017407A1 (en) * 2014-02-13 2015-08-14 Kawneer France ANTI-LIFTING SAFETY FOR SLIDING WINDOWS AND SLIDING DOORS
US20200232271A1 (en) * 2017-05-12 2020-07-23 Iph International Pty Ltd Security door system
US11739588B2 (en) * 2017-05-12 2023-08-29 Iph International Pty Ltd Security door system

Also Published As

Publication number Publication date
GB0720718D0 (en) 2007-12-05

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