WO2015055993A1 - Smoke or fire barrier - Google Patents

Smoke or fire barrier Download PDF

Info

Publication number
WO2015055993A1
WO2015055993A1 PCT/GB2014/053076 GB2014053076W WO2015055993A1 WO 2015055993 A1 WO2015055993 A1 WO 2015055993A1 GB 2014053076 W GB2014053076 W GB 2014053076W WO 2015055993 A1 WO2015055993 A1 WO 2015055993A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
smoke
curtain
restraint
fire barrier
Prior art date
Application number
PCT/GB2014/053076
Other languages
French (fr)
Inventor
Andrew P Cooper
William Charles James
Original Assignee
Coopers Fire Limited
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 Coopers Fire Limited filed Critical Coopers Fire Limited
Publication of WO2015055993A1 publication Critical patent/WO2015055993A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/10—Fire-proof curtains
    • 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
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • E06B9/174—Bearings specially adapted therefor
    • 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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • E06B9/50—Bearings specially adapted therefor
    • 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
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • E06B9/174—Bearings specially adapted therefor
    • E06B2009/1743—Bearings specially adapted therefor allowing radial roller movement

Definitions

  • the present invention relates to a smoke or fire barrier
  • Smoke and fire barriers are intended to contain smoke, fire or smoke and fire.
  • fire barriers are required. In others the fire barrier must also stop smoke. Whereas in others still, the lower temperature task of restricting smoke from flowing throughout a building or other construction is adequate. Insofar as heat and smoke rises it may not be necessary for a smoke barrier to extend from a ceiling all the way to the floor. For instance at an atrium, a smoke curtain dropping from the ceilings around the atrium can contain the smoke to prevent lateral migration and ensure it rises up the atrium to be extracted at a higher level. However, where the barrier is a fire barrier, it must extend all the way to the floor.
  • twin roller smoke or fire barrier having two parallel rollers and curtain comprises of narrow curtain portions rolled on the rollers and arranged along the length of the roller on alternative rollers with end margins overlapping opposite each other. While this is satisfactory, it does involve an additional roller, and multiple sections of curtain all of which must be correctly aligned to ensure the creation of a smoke or fire barrier on deployment.
  • the object of the present invention is to provide an improved smoke or fire barrier.
  • a smoke or fire barrier for closing an opening in a building, the barrier including:
  • a roller having a central longitidinal axis, from which a curtain can be unwound for deployment and to which the curtain can be rewound for retraction;
  • the barrier will be provided with at least one intermediate support bearing for supporting the roller along its length, the arrangement being such that the roller is intermediately supported along its length and able to move substantially orthogonally to the axis of the roller to accommodate changes in the diameter of the curtain wound on the roller as the curtain is unwound from or rewound onto the roller during use.
  • the barrier will be provided in a head box mounted on the wall or ceiling of a building at the head of the opening.
  • the end plates may form ends of the head box.
  • the cruciform restraints are mounted on stub rollers on the end plates. However, they could be mounted on sliding bearings or any other form of sliding connection.
  • the journal bearings further include stub rollers for movement on the cruciform restraints.
  • the cruciform restraint will be arranged for substantially vertical movement of the restraint on the end plate and substantially horizontal movement of the journal bearing on the restraint. However, it could be arranged for substantially horizontal movement of the restrain on the end plate and substantially vertical movement of the journal bearing on the restraint. In further alternatives the movement could be in two substantially orthogonal, substantially non- vertical directions.
  • the intermediate support(s) will be rollers, against which the curtain rests, the support rollers being attached to the ceiling, wall or headbox containing the roller where provided.
  • the intermediate supports or sets of supports are provided, one at the lower extent of the movement of the roller and one at the outermost extent of the roller movement.
  • end plates, cruciform restraints and journal bearings are made from metal, typically steel.
  • the roller includes an internal motor and gearbox arrangement for unwinding and rewinding of the curtain.
  • this will be a fail-safe system, design to deploy the curtain on failure of the power supply.
  • Figure 1 is a front view of the fire curtain according to the invention.
  • Figure 2 is a cross-sectional view through the middle of the curtain
  • Figure 3 is a end view of the end plate according to the invention with the curtain withdrawn.
  • FIG 4 is an end view of the end plate of Figure 3 with the curtain fully deployed.
  • a fire and or smoke barrier 1 is shown for closing an opening in a building.
  • the barrier is provided in a head box 4 including a roller 6 around which a curtain 8 is rolled.
  • Attached to the bottom of the curtain 8 is a bottom bar 10, which acts as a weight for the curtain, and also to close the head box 4, when the curtain is wound on the roller.
  • the roller 6 includes a motor, gear box, and brake arrangement (not shown), which acts to unwind the curtain when necessary, for example in the event of a fire or for testing, and to rewind the curtain and to hold the curtain in its wound position when not required.
  • the arrangement is such that on disruption of all power, the motor and the brake are switched off, allowing deployment of the curtain under the weight of the bottom bar 10. All of this is as generally described in my earlier patent GB 2320944.
  • the drum is held within the headbox on end plates 12.
  • the roller as is conventional, is a long cylindrical drum 14, to which the curtain 8 is afixed and rolled around.
  • a central shaft 16 extends, journaled to the drum, which is supported by each end plate 12, as will be described further.
  • the motor, gear box and brake arrangement described above, provide rotation of the drum around the shafts 16.
  • a pair of stub rollers 18 is mounted on each end plate 12; they are positioned essentially vertically with respect of the fall of the curtain, which will also be vertical.
  • a bearing generally in the shape of a cross, is connected to the stub rollers.
  • the bearing 20 includes two sections of channel 29 arranged vertically, one section mounted on each of the stub bearings. The channels are open towards the end plate and are provided with in-turned lips 24 to hold them over the stub bearings 18.
  • the bearings 20 also include a further channel 23, which extends essentially horizontally, and joins the two vertical sections of channel 29 into a cruciform shape.
  • the horizontal channel 23 is open away from the end plate 12 and has in-turned lips 24 to hold within it a further pair of spaced stub rollers 26, joined together by a separating member 28.
  • the channels are closed at their ends to prevent removal of the respective stub rollers.
  • the shaft is connected to the separating member 28.
  • the provision of the spaced stub rollers prevents rotation of the shaft within the bearing 20.
  • the arrangement enables the cruciform bearing 20 to move vertically on the end plate, and allows the roller shaft to move horizontally on the cruciform bearing. As a result the roller shaft can move both horizontally and vertically with respect to the end plate.
  • the roller is able to move both vertically and horizontally to compensate for changes in its diameter as the blind is rolled off and onto the roller, while being held and supported on the end plates 12 via the bearings 20.
  • the channels of the bearing are arranged vertically and horizontally, although this is the preferred arrangement. As long as they are provided at substantially orthogonal to each other, with the stub rollers 18 on the end plates 12 correspondingly aligned, the arrangement will result in a full range of movement of the shaft of the roller with respect to the end plate.
  • the cruciform bearings are mounted on stub rollers on the end plates.
  • the cruciform bearings could be mounted on any sliding or rolling bearings on the end plates.
  • This arrangement is designed for use with a long drum, typically of 2-30m in length.
  • additional support will be required along the length of the drum, and any supporting system may be used in accordance with the invention, which acts both the support the middle portion of the drum and to maintain its position.
  • relieving rollers 30 are provided at the forward extent of the diameter of roller and the lower extent of the diameter of the roller. They provide support to the roller preventing sagging in the middle.
  • the relieving rollers 30 are attached to the headbox, where provided, or the ceiling or wall of the opening.
  • the relieving rollers 30 are made of sections of roller joined together at plates, which are then attached to the headbox, wall or ceiling at various points along its length. However, continuous rollers, short individual rollers or other forms of support could be used.
  • the diameter of the drum In use, in the position in which the curtain is withdrawn and is wound onto the drum, the diameter of the drum will be at a maximum. In this state the drum will be as urged back and up on the cruciform bearings 20 with respect to the end plates 12, as shown in Figure 2.
  • the outermost layer of the blind is supported on the relieving rollers 20, at the outermost extend of its diameter and the lower most extent of its diameter.
  • the diameter of the drum reduces.
  • the outermost layer on the drum stays in contact with the relieving rollers, causing the shaft of the roller to move down and across with respect to the end plate.
  • the movement of the drum traces out an arc shape, while having a full range of movement both vertically and horizontally.
  • the diameter of the drum is at a minimum. This is shown in Figure 3. As shown the drum has moved downwards and to the right with the edges of the drum still abutting the relieving rollers 20.
  • the invention is not intended to be restricted to the details of the above- described embodiment.
  • other means for supporting the drum can be used, for example support brackets spaced along its length.
  • the cruciform bearing can be provided within a solid shape for additional rigidity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Abstract

According to the invention there is provided a smoke or fire barrier for closing an opening in a building, the barrier including: • a roller, having a central longitudinal axis, from which a curtain can be unwound for deployment and to which the curtain can be rewound for retraction; • a pair of end plates, arrangeable at sides of a head of the opening, for locating the roller; • a journal bearing for each end of the roller; • a respective cruciform restraint between the end plates and the journal bearings, the restraint being slidably mounted on: • the end plate for radial movement of the roller in one direction substantially orthogonal to the axis of the roller and on • the journal bearing for radial movement of the roller in another direction, substantially orthogonal to the direction of the roller and substantially orthogonal to the one direction.

Description

SMOKE OR FIRE BARRIER
The present invention relates to a smoke or fire barrier Smoke and fire barriers are intended to contain smoke, fire or smoke and fire.
In certain applications, fire barriers are required. In others the fire barrier must also stop smoke. Whereas in others still, the lower temperature task of restricting smoke from flowing throughout a building or other construction is adequate. Insofar as heat and smoke rises it may not be necessary for a smoke barrier to extend from a ceiling all the way to the floor. For instance at an atrium, a smoke curtain dropping from the ceilings around the atrium can contain the smoke to prevent lateral migration and ensure it rises up the atrium to be extracted at a higher level. However, where the barrier is a fire barrier, it must extend all the way to the floor. Wide curtains, that is curtains having a considerable lateral extent, can be too heavy for deployment from a single, unsupported roller, because the roller does not have sufficient stiffness to support the weight of the curtain. It is known to provide intermediate bearings or supports for the roller. However, the roller including the curtain will increase and decrease in diameter as the barrier is opened and closed, as the curtain is unwound from the roller or rewound back on to it. As a result the roller will not be correctly seated on intermediate supports at least at one of these extremes, generally once the curtain is unwound. This is likely to cause sag in the roller and alter the way in which the curtain passes over the intermediate supports, which may lead to damage of the curtain, and uneven deployment.
To overcome this problem it is known to provide multiple overlapping rollers. For example in our international application, published under WO2010/142944, we describe a twin roller smoke or fire barrier having two parallel rollers and curtain comprises of narrow curtain portions rolled on the rollers and arranged along the length of the roller on alternative rollers with end margins overlapping opposite each other. While this is satisfactory, it does involve an additional roller, and multiple sections of curtain all of which must be correctly aligned to ensure the creation of a smoke or fire barrier on deployment. The object of the present invention is to provide an improved smoke or fire barrier.
According to the invention there is provided a smoke or fire barrier for closing an opening in a building, the barrier including:
• a roller, having a central longitidinal axis, from which a curtain can be unwound for deployment and to which the curtain can be rewound for retraction;
• a pair of end plates, arrangeable at sides of a head of the opening, for locating the roller;
• a journal bearing for each end of the roller;
• a respective cruciform restraint between the end plates and the journal bearings, the restraint being slidably mounted on:
• the end plate for radial movement of the roller in one direction
substantially orthogonal to the axis of the roller and on
• the journal bearing for radial movement of the roller in another
direction, substantially orthogonal to the direction of the roller and substantially orthogonal to the one direction. Preferably the barrier will be provided with at least one intermediate support bearing for supporting the roller along its length, the arrangement being such that the roller is intermediately supported along its length and able to move substantially orthogonally to the axis of the roller to accommodate changes in the diameter of the curtain wound on the roller as the curtain is unwound from or rewound onto the roller during use.
Preferably the barrier will be provided in a head box mounted on the wall or ceiling of a building at the head of the opening. The end plates may form ends of the head box.
Usually the cruciform restraints are mounted on stub rollers on the end plates. However, they could be mounted on sliding bearings or any other form of sliding connection. Usually the journal bearings further include stub rollers for movement on the cruciform restraints. Typically the cruciform restraint will be arranged for substantially vertical movement of the restraint on the end plate and substantially horizontal movement of the journal bearing on the restraint. However, it could be arranged for substantially horizontal movement of the restrain on the end plate and substantially vertical movement of the journal bearing on the restraint. In further alternatives the movement could be in two substantially orthogonal, substantially non- vertical directions.
Usually the intermediate support(s) will be rollers, against which the curtain rests, the support rollers being attached to the ceiling, wall or headbox containing the roller where provided. Preferably two intermediate supports or sets of supports are provided, one at the lower extent of the movement of the roller and one at the outermost extent of the roller movement.
Preferably the end plates, cruciform restraints and journal bearings are made from metal, typically steel.
Preferably the roller includes an internal motor and gearbox arrangement for unwinding and rewinding of the curtain. Typically this will be a fail-safe system, design to deploy the curtain on failure of the power supply.
To help understanding of the invention, a specific embodiment thereof will now be described by way of example and with reference to the accompanying drawings, in which:
Figure 1 is a front view of the fire curtain according to the invention;
Figure 2 is a cross-sectional view through the middle of the curtain;
Figure 3 is a end view of the end plate according to the invention with the curtain withdrawn; and
Figure 4 is an end view of the end plate of Figure 3 with the curtain fully deployed. Referring to the drawings, a fire and or smoke barrier 1 is shown for closing an opening in a building. The barrier is provided in a head box 4 including a roller 6 around which a curtain 8 is rolled. Attached to the bottom of the curtain 8 is a bottom bar 10, which acts as a weight for the curtain, and also to close the head box 4, when the curtain is wound on the roller.
The roller 6 includes a motor, gear box, and brake arrangement (not shown), which acts to unwind the curtain when necessary, for example in the event of a fire or for testing, and to rewind the curtain and to hold the curtain in its wound position when not required. The arrangement is such that on disruption of all power, the motor and the brake are switched off, allowing deployment of the curtain under the weight of the bottom bar 10. All of this is as generally described in my earlier patent GB 2320944.
Conventionally the drum is held within the headbox on end plates 12. The roller, as is conventional, is a long cylindrical drum 14, to which the curtain 8 is afixed and rolled around. At each end of the drum a central shaft 16 extends, journaled to the drum, which is supported by each end plate 12, as will be described further. The motor, gear box and brake arrangement described above, provide rotation of the drum around the shafts 16.
According to the invention, a pair of stub rollers 18 is mounted on each end plate 12; they are positioned essentially vertically with respect of the fall of the curtain, which will also be vertical. A bearing, generally in the shape of a cross, is connected to the stub rollers. The bearing 20 includes two sections of channel 29 arranged vertically, one section mounted on each of the stub bearings. The channels are open towards the end plate and are provided with in-turned lips 24 to hold them over the stub bearings 18. The bearings 20 also include a further channel 23, which extends essentially horizontally, and joins the two vertical sections of channel 29 into a cruciform shape. The horizontal channel 23 is open away from the end plate 12 and has in-turned lips 24 to hold within it a further pair of spaced stub rollers 26, joined together by a separating member 28. The channels are closed at their ends to prevent removal of the respective stub rollers. The shaft is connected to the separating member 28. The provision of the spaced stub rollers prevents rotation of the shaft within the bearing 20. The arrangement enables the cruciform bearing 20 to move vertically on the end plate, and allows the roller shaft to move horizontally on the cruciform bearing. As a result the roller shaft can move both horizontally and vertically with respect to the end plate. Thus the roller is able to move both vertically and horizontally to compensate for changes in its diameter as the blind is rolled off and onto the roller, while being held and supported on the end plates 12 via the bearings 20.
It is not essential that the channels of the bearing are arranged vertically and horizontally, although this is the preferred arrangement. As long as they are provided at substantially orthogonal to each other, with the stub rollers 18 on the end plates 12 correspondingly aligned, the arrangement will result in a full range of movement of the shaft of the roller with respect to the end plate.
Similarly it is not essential that the cruciform bearings are mounted on stub rollers on the end plates. The cruciform bearings could be mounted on any sliding or rolling bearings on the end plates.
This arrangement is designed for use with a long drum, typically of 2-30m in length. In such long drums, additional support will be required along the length of the drum, and any supporting system may be used in accordance with the invention, which acts both the support the middle portion of the drum and to maintain its position.
As shown in the embodiment of the drawings, relieving rollers 30 are provided at the forward extent of the diameter of roller and the lower extent of the diameter of the roller. They provide support to the roller preventing sagging in the middle. The relieving rollers 30 are attached to the headbox, where provided, or the ceiling or wall of the opening. The relieving rollers 30 are made of sections of roller joined together at plates, which are then attached to the headbox, wall or ceiling at various points along its length. However, continuous rollers, short individual rollers or other forms of support could be used.
In use, in the position in which the curtain is withdrawn and is wound onto the drum, the diameter of the drum will be at a maximum. In this state the drum will be as urged back and up on the cruciform bearings 20 with respect to the end plates 12, as shown in Figure 2. The outermost layer of the blind is supported on the relieving rollers 20, at the outermost extend of its diameter and the lower most extent of its diameter. As the curtain 8 is deployed from the drum, the diameter of the drum reduces. As it does so, the outermost layer on the drum stays in contact with the relieving rollers, causing the shaft of the roller to move down and across with respect to the end plate. The movement of the drum traces out an arc shape, while having a full range of movement both vertically and horizontally. When the curtain is fully deployed from the drum, the diameter of the drum is at a minimum. This is shown in Figure 3. As shown the drum has moved downwards and to the right with the edges of the drum still abutting the relieving rollers 20.
This provision of the cruciform bearing end plate allows the roller to "float" and thus move vertically and horizontally so that the roller is always supported in the correct position relative to the diameter of the drum including the curtain at any time. This ensures that the drum is held on the end plate but also supported along its length on the relieving rollers.
The invention is not intended to be restricted to the details of the above- described embodiment. For instance, other means for supporting the drum can be used, for example support brackets spaced along its length. In addition, the cruciform bearing can be provided within a solid shape for additional rigidity.

Claims

CLAIMS:
1. A smoke or fire barrier for closing an opening in a building, the barrier including:
• a roller, having a central longitudinal axis, from which a curtain can be
unwound for deployment and to which the curtain can be rewound for retraction;
• a pair of end plates, arrangeable at sides of a head of the opening, for locating the roller;
• a journal bearing for each end of the roller;
• a respective cruciform restraint between the end plates and the journal
bearings, the restraint being slidably mounted on:
• the end plate for radial movement of the roller in one direction
substantially orthogonal to the axis of the roller and on
• the journal bearing for radial movement of the roller in another
direction, substantially orthogonal to the direction of the roller and substantially orthogonal to the one direction.
2. A smoke or fire barrier as claimed in claim 1 , including at least one intermediate support bearing for supporting the roller along its length, the arrangement being such that the roller is intermediately supported along its length and able to move substantially orthogonally to the axis of the roller to accommodate changes in the diameter of the curtain wound on the roller as the curtain is unwound from or rewound onto the roller during use.
3. A smoke or fire barrier as claimed in claim 2, wherein the at least one
intermediate support is a roller, against which the curtain rests, the support roller being attached to the ceiling, wall or headbox containing the roller where provided.
4. A smoke or fire barrier as claimed in claim 2 or claim 3, wherein two intermediate supports or sets of supports are provided, one at the lowest extent of the movement of the roller and one at the outermost extent of the roller movement.
5. A smoke or fire barrier as claimed in any preceding claim, wherein the cruciform restraints are mounted on stub rollers on the end plates, on sliding bearings or any other form of sliding connection.
6. A smoke or fire barrier as claimed in any preceding claim, wherein the journal bearings further include stub rollers for movement on the cruciform restraints.
7. A smoke or fire barrier as claimed in any preceding claim, wherein the cruciform restraint is arranged for substantially vertical movement of the restraint on the end plate and substantially horizontal movement of the journal bearing on the restraint.
8. A smoke or fire barrier as claimed in any preceding claim, wherein the cruciform restraint is arranged for substantially horizontal movement of the restrain on the end plate and substantially vertical movement of the journal bearing on the restraint.
PCT/GB2014/053076 2013-10-14 2014-10-13 Smoke or fire barrier WO2015055993A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1318177.1 2013-10-14
GBGB1318177.1A GB201318177D0 (en) 2013-10-14 2013-10-14 Fire os smoke barrier

Publications (1)

Publication Number Publication Date
WO2015055993A1 true WO2015055993A1 (en) 2015-04-23

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ID=49680027

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GB (2) GB201318177D0 (en)
WO (1) WO2015055993A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10309153B2 (en) 2016-09-26 2019-06-04 Draper, Inc. Support system for rolled material
US11512523B2 (en) 2017-03-27 2022-11-29 Cornellcookson, Llc Fire rated door

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320944A (en) 1996-12-23 1998-07-08 Andrew Paul Cooper Roller blind:drum brake
US20100116443A1 (en) * 2008-11-07 2010-05-13 Mechoshade Systems, Inc. Through shade system and method
WO2010142944A1 (en) 2009-06-08 2010-12-16 Coopers Fire Limited Smoke or fire barrier
US20120255684A1 (en) * 2011-04-06 2012-10-11 Frank Krueger Fire or smoke protection device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09279967A (en) * 1996-04-11 1997-10-28 Katsuaki Tomita Roll screen
DE29901034U1 (en) * 1999-01-24 1999-08-12 Höhne, Rainer, 02625 Bautzen Device for a roller shutter shaft
JP3574397B2 (en) * 2000-11-09 2004-10-06 新日軽株式会社 Shutter device
US8220520B2 (en) * 2004-09-17 2012-07-17 Stephen Lukos Spring biased slide arrangement for anti-bow roller tube

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320944A (en) 1996-12-23 1998-07-08 Andrew Paul Cooper Roller blind:drum brake
US20100116443A1 (en) * 2008-11-07 2010-05-13 Mechoshade Systems, Inc. Through shade system and method
WO2010142944A1 (en) 2009-06-08 2010-12-16 Coopers Fire Limited Smoke or fire barrier
US20120255684A1 (en) * 2011-04-06 2012-10-11 Frank Krueger Fire or smoke protection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10309153B2 (en) 2016-09-26 2019-06-04 Draper, Inc. Support system for rolled material
US11512523B2 (en) 2017-03-27 2022-11-29 Cornellcookson, Llc Fire rated door

Also Published As

Publication number Publication date
GB201418101D0 (en) 2014-11-26
GB201318177D0 (en) 2013-11-27
GB2521038A (en) 2015-06-10
GB2521038B (en) 2016-10-05

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