EP0050517A1 - Intumescent seals - Google Patents
Intumescent seals Download PDFInfo
- Publication number
- EP0050517A1 EP0050517A1 EP81304916A EP81304916A EP0050517A1 EP 0050517 A1 EP0050517 A1 EP 0050517A1 EP 81304916 A EP81304916 A EP 81304916A EP 81304916 A EP81304916 A EP 81304916A EP 0050517 A1 EP0050517 A1 EP 0050517A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- holder
- channel
- opening
- seal
- intumescent material
- 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.)
- Granted
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Classifications
-
- 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
- E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
- E06B5/164—Sealing arrangements between the door or window and its frame, e.g. intumescent seals specially adapted therefor
Definitions
- the present invention relates to intumescent seals.
- the present invention relates to improved intumescent seals and to a method of making tamper-resistant intumescent seals.
- intumescent seals comprise an elongate holder containing intumescent material, the holder being provided with an opening or series of openings along its length.
- Such seals are fitted arround doors or window openings, usually in the door or window frame.
- the intumescent material when exposed to elevated temperature intumesces, that is it swells considerably and exudes through the opening or openings in the holder to seal any gap between the door or the window and the frame thereby preventing, or at least hindering, passage of smoke, flame and fumes past the door or window. This not only serves to retard spread of the fire but also assists in protecting people on the side of the door or window remote from the fire from the smoke and fumes produced by the fire.
- Certain known seals for sealing doors (or other closure members) against draughts, smoke and fire comprise an elongate metal holder defining at least two channels each having an opening. A first of the channels retains a resilient element which has a blade protruding through the opening of the channel.
- the other channel or channels (herein referred to as the "second channel or channels”) contain intumescent material.
- the sealing device is rebated into either the door frame or an edge of the door.
- the blade acts as a draught and smoke seal and the intumescent material, when subjected to high temperature as under fire conditions, expands through the opening of the second channel or channels to form a fire seal.
- Known sealing devices as described above include the sealing devices shown in Figure 6 of British Patent No.1529054 and Figure 3 of British Patent No.1529733, both granted to Dixon International Limited, and Figures 1 and 2 of British Patent Application No.17806/77 also in the name of Dixon International Limited.
- the blade of the resilient member is at right angles to the face of the holder having the opening or openings for the intumescent material. This has led to disadvantages. In particular the sealing devices have proved unsuitable for single action doors, especially single action duble doors.
- the present invention aims to provide on improved intumescent seal for sealing doors, particularly single action doors, against draughts, smoke and fire.
- intumescent seals especially when used in places frequented by children, such as schools, is that intumescent material is commonly removed from the holders by tamperers using pointed instruments as probes- ? ushediinto the holders through the openings.
- the intumescent seals comprise an elongate holder having an opening to the exterior of the holder, a baffle within the holder defining an interior chamber and a strait within the holder providing communication between the interior chamber and the opening.
- the interior chamber of the holder contains at least a major part of intumescent material in the holder.
- the intumescent material within the interior chamber can intumesce through the strait and out of the holder through the opening but the baffle restricts access to the interior chamber by a probe pushed through the opening by a tamperer.
- intumescent seals as described above in which a baffle is present in the holder, is that it has not hitherto provided possible to manufacture such seals in an economic manner. This is because the holders, as articles of indefinite length and uniform cross section, have to be made by extrusion but the dies used are necessarily complex and will not stand up to the required pressures.
- the present invention aims at overcoming or mitigating the disadvantage described above.
- a seal for sealing a pivotally mounted door against draughts, smoke and fire comprising an elongate holder defining two channels each having an opening, a first of the channels retaining a resilient element having a blade protruding from the opening of the channel and for acting as a draught and smoke seal, the second channel containing intumescent material, the intumescent material expanding through the opening of the second channel for forming a fire seal when subjected to high temperature, the blade being at an acute angle to a face of the holder in which the opening of the second channel is provided.
- a door frame a door pivotally mounted relative to the door frame, and a sealing device comprising an elongate holder defining two channels each having an opening, a first of the channels retaining a resilient element having a blade protruding from the opening of the channel, the second channel containing intumescent material, the sealing device being affixed to one of the door and the door frame, wherein when the door is in a closed position the blade engages with the other of the door and the door frame to act as a draught and smoke seal and the intumescent material on being subjected to high temperature intumesces through the opening of the second channel to form a fire seal between the door and the door frame.
- There may be two channels in the holder having respective openings and each containing intumescent material, the resilient member preferably being disposed between the two channels.
- said acute angle is in the range 30 to 60°.
- the free edge of the blade should be the trailing edge of the blade in relation to the relative movement of the door and door frame during closure of the door.
- a method of making an intumescent seal comprising: providing a tubular holder having a longitudinal bore or interior chamber defined by a thickened longitudinally extending portion of the holder contiguous with a relatively thin wall of the holder; filling the bore of the holder with solid intumescent material; and thereafter removing a longitudinally extending part of said thickened portion thereby to leave part of said thickened portion as a baffle within the holder, the space left by said removed part forming a strait having a longitudinally extending opening to the exterior of the holder and a longitudinally extending opening to the bore of the holder.
- the bore of the holder may be filled with the intumescent material by first filling the bore with a slurry or paste of a composition which subsequently hardens to form the intumescent material.
- the removal of said part of the thickened portion leaves two webs, one of which constitutes the baffle and the other preferably being at the exterior of the holder.
- the thickened portion is preferably at a corner of the holder and is preferably square or rectangular in cross section.
- the removal of said part of the thickened portion is conveniently effected by means of a saw or other cutting tool and leaves the opening from the strait into the bore of the holder defined between a free edge of the relatively thin wall portion and a free edge of the baffle.
- the sealing device shown in Figure 1 comprises an,elongate holder 1 defining a first channel 2 and a second channel 3.
- the channels 2 and 3 have respective openings 4 and 5.
- the first channel 2 retains a resilient member 6 having a blade 6' protruding from the channel 2 through the opening 4.
- the second channel 3 contains intumescent material 7.
- the openings 5 and 6 are provided in a face 8 of the holder 1 and the blade 6' is at an angle of 45° to the face 8.
- the holder 1 is formed with a baffle 15 extending within the channel 3.
- the baffle 15 is co-extensive with the opening 5 and defines a strait 19 intermediate the opening 5 and an interior chamber 20 of the holder.
- the chann el 3 thus consists of the strait 19 and the chamber 20, the strait containing a minor proportion of the intumescent material 7 and the chamber containing a major proportion of the intumescent material.
- the sealing device may be installed in a groove 10 along one side edge of a door 11.
- the door 11 engages a stile 12 of a door frame.
- the top crosspiece of the door frame is not shown in Figures 2A and 2B.
- the door 11 is a single action door opening in the direction,indicated by arrow A and the free edge of the blade 6' is the trailing edge of the blade when the door is closed.
- Figure 2A shows the door closed under normal conditions, the blade 6' bearing against the stile 12 and acting as a draught seal. In the event of a fire the blade 6' at least initially continues to bear against the stile 12 and acts as a smoke seal.
- the baffle 15 protects the intumescent material 7 in the chamber 20 against a probe which may be pushed through the opening 5 by a tamperer.
- the intumescent material in the holder 1 intumesces through the opening 5 in the holder and fills, at 14, any gap between the stile 12 and the adjacent edge of the door 11 thereby acting as a fire seal. If the fire is on the same side of the holder as the opening 5, the intumesced material at 14 serves to protect the blade 6' against the heat of the fire.
- the holder 1 is made of material of high thermal conductivity e.g. aluminium.
- the resilient member is conveniently made of Neoprene.
- the seal shown in Figure 3 is similar to that shown in Figure 1 except that it has two channels 3 having respective openings 5 and each containing intumescent material 7.
- the channel 2 retaining the resilient member 6 is disposed between the two channels 3.
- seals described above with reference to Figures 1 to 3 may be made by a method such as described below.
- a rigid holder 1 is elongate and of uniform cross section and comprises two tubular portions 2, each having a longitudinal bore or interior chamber 3 and being interconnected by a web 4.
- Each tubular portion 2 comprises relatively thin walls 5 and a contiguous relatively thick portion 6 at a corner of the holder, the_portion 6 being of square cross section.
- a channel 7 is defined by facing walls of the two tubular portions 2 and the connecting web 4.
- the bores 2 are filled with a composition in the form of a slurry which is allowed or caused to harden to form a solid coherent mass of intumescent material 20. Then a longitudinal saw cut bounded by dot-dash line 8 is made into each portion 6 to remove a part thereof. The saw cut breaks into the bore 3 but leaves a web 9 (see Figure 1B) at the exterior of the holder and a web 10 within the holder. There is thus formed a strait 11 having an opening 12 to the exterior of the holder and an opening 13 to the longitudinal bore 3 of the holder.
- the web 10 constitutes a baffle, which, as can be seen from Figure 1B, restricts access to the bore or interior chamber 3 of the holder by a probe pushed through the opening 12 by a tamperer.
- a resilient draught and smoke sealing element 14 may be fitted to the seal.
- the sealing element 14 has a foot portion 15 which is located in the channel 7 and a blade 16 which extends away from the channel.
- the intumescent material in either of the tubular portions 2 can protect the sealing element from heat in the event of a fire. It is to be understood that it is not essential to provide the sealing element 14.
- Figures 5A to 9A show other shapes of holders and Figures 5B to 9B show intumescent seals made therefrom.
- the channel 7 faces in the opposite direction to the openings 12 in the intumescent seal, and the tubular portions are interconnected by a relatively thick portion 4'.
- the seal can be fixed to a structure such as a door by fasteners (e.g. nails) passed through the portion 4' and the channel 7 into the structure.
- the holder of Figures 6A and 6B has only one tubular portion 2 and hence only one interior chamber 3. Ideally in use the opening 12 is disposed between the source of fire and the sealing element 13.
- the holder of Figures 7A and 7B has an inverted T-shaped channel 7 to receive a correspondingly shaped base of a draught and smoke sealing element.
- the holder of Figures 8A and 8B has only a single tubular portion 2 and the channel 7 faces in the opposite direction to the opening 12 in the seal.
- a shallow V-shaped channel 16 in portion 4" of the holder In alignment with the channel 7 is a shallow V-shaped channel 16 in portion 4" of the holder.
- the seal can be fixed to a structure such as a door by fasteners (e.g.nails) passed through the portion 4" and the channel 7 into the structure, heads of the fasteners being sunk into the channel 16.
- tubular portions have a common wall or web 5', there being no interconnecting web 4.
- the holders described above and as shown in the "A" figures may be made by extrusion of aluminium, aluminium alloy or plastics material.
- plastics material preferably has inclusions of material of high thermal conductivity.
- seals described above and which comprise a resilient draught and smoke sealing element may be used with such element omitted simply as an intumescent fire seal.
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Special Wing (AREA)
Abstract
Description
- The present invention relates to intumescent seals. In particular the present invention relates to improved intumescent seals and to a method of making tamper-resistant intumescent seals.
- Known intumescent seals comprise an elongate holder containing intumescent material, the holder being provided with an opening or series of openings along its length. Such seals are fitted arround doors or window openings, usually in the door or window frame. In the event of a fire, the intumescent material, when exposed to elevated temperature intumesces, that is it swells considerably and exudes through the opening or openings in the holder to seal any gap between the door or the window and the frame thereby preventing, or at least hindering, passage of smoke, flame and fumes past the door or window. This not only serves to retard spread of the fire but also assists in protecting people on the side of the door or window remote from the fire from the smoke and fumes produced by the fire.
- Certain known seals for sealing doors (or other closure members) against draughts, smoke and fire comprise an elongate metal holder defining at least two channels each having an opening. A first of the channels retains a resilient element which has a blade protruding through the opening of the channel. The other channel or channels (herein referred to as the "second channel or channels") contain intumescent material.
- The sealing device is rebated into either the door frame or an edge of the door. When the door is closed the blade acts as a draught and smoke seal and the intumescent material, when subjected to high temperature as under fire conditions, expands through the opening of the second channel or channels to form a fire seal.
- Known sealing devices as described above include the sealing devices shown in Figure 6 of British Patent No.1529054 and Figure 3 of British Patent No.1529733, both granted to Dixon International Limited, and Figures 1 and 2 of British Patent Application No.17806/77 also in the name of Dixon International Limited.
- In the known sealing devices the blade of the resilient member is at right angles to the face of the holder having the opening or openings for the intumescent material. This has led to disadvantages. In particular the sealing devices have proved unsuitable for single action doors, especially single action duble doors.
- The present invention aims to provide on improved intumescent seal for sealing doors, particularly single action doors, against draughts, smoke and fire.
- Furthermore, a problem associated with intumescent seals, especially when used in places frequented by children, such as schools, is that intumescent material is commonly removed from the holders by tamperers using pointed instruments as probes-?ushediinto the holders through the openings.
- To overcome this problem, it has been proposed to provide a baffle within the holder, the baffle restricting access to the intumescent material by a probe pushed into the holder through the opening. Our British patent no.1529733 describes such intumescent seals. As disclosed in that patent, the intumescent seals comprise an elongate holder having an opening to the exterior of the holder, a baffle within the holder defining an interior chamber and a strait within the holder providing communication between the interior chamber and the opening. The interior chamber of the holder contains at least a major part of intumescent material in the holder. The intumescent material within the interior chamber can intumesce through the strait and out of the holder through the opening but the baffle restricts access to the interior chamber by a probe pushed through the opening by a tamperer.
- A disadvantage of intumescent seals as described above, in which a baffle is present in the holder, is that it has not hitherto provided possible to manufacture such seals in an economic manner. This is because the holders, as articles of indefinite length and uniform cross section, have to be made by extrusion but the dies used are necessarily complex and will not stand up to the required pressures.
- The present invention aims at overcoming or mitigating the disadvantage described above.
- In accordance with a first aspect of the present invention, there is provided a seal for sealing a pivotally mounted door against draughts, smoke and fire, the device comprising an elongate holder defining two channels each having an opening, a first of the channels retaining a resilient element having a blade protruding from the opening of the channel and for acting as a draught and smoke seal, the second channel containing intumescent material, the intumescent material expanding through the opening of the second channel for forming a fire seal when subjected to high temperature, the blade being at an acute angle to a face of the holder in which the opening of the second channel is provided.
- In accordance with a second aspect of the invention, there is provided, in combination, a door frame, a door pivotally mounted relative to the door frame, and a sealing device comprising an elongate holder defining two channels each having an opening, a first of the channels retaining a resilient element having a blade protruding from the opening of the channel, the second channel containing intumescent material, the sealing device being affixed to one of the door and the door frame, wherein when the door is in a closed position the blade engages with the other of the door and the door frame to act as a draught and smoke seal and the intumescent material on being subjected to high temperature intumesces through the opening of the second channel to form a fire seal between the door and the door frame. There may be two channels in the holder having respective openings and each containing intumescent material, the resilient member preferably being disposed between the two channels.
- Preferably said acute angle is in the range 30 to 60°.
- When the sealing device is installed on a single action door or a door frame for such a door, the free edge of the blade should be the trailing edge of the blade in relation to the relative movement of the door and door frame during closure of the door.
- In accordance with a further aspect of the present invention, there is provided a method of making an intumescent seal comprising: providing a tubular holder having a longitudinal bore or interior chamber defined by a thickened longitudinally extending portion of the holder contiguous with a relatively thin wall of the holder; filling the bore of the holder with solid intumescent material; and thereafter removing a longitudinally extending part of said thickened portion thereby to leave part of said thickened portion as a baffle within the holder, the space left by said removed part forming a strait having a longitudinally extending opening to the exterior of the holder and a longitudinally extending opening to the bore of the holder.
- The bore of the holder may be filled with the intumescent material by first filling the bore with a slurry or paste of a composition which subsequently hardens to form the intumescent material.
- Preferably the removal of said part of the thickened portion leaves two webs, one of which constitutes the baffle and the other preferably being at the exterior of the holder. To this end, the thickened portion is preferably at a corner of the holder and is preferably square or rectangular in cross section. The removal of said part of the thickened portion is conveniently effected by means of a saw or other cutting tool and leaves the opening from the strait into the bore of the holder defined between a free edge of the relatively thin wall portion and a free edge of the baffle.
- The invention is further described below by way of example with reference to the accompanying drawings, in which:
- Figure 1 is a cross section of a first sealing device according to the invention;
- Figure 2A is a perspective view of a door and a door stile, the door being equipped with the first sealing device.
- Figure 2B is similar to Figure 2A but with fire conditions on one side of the door; and
- Figure 3 is a section of a second sealing device according tq the invention.
- Figure 4A is a cross section of a holder before filling with the intumescent material;
- Figure 4B is a cross section of an intumescent seal made from the holder of Figure 1A;
- Figures 5A to 9A ("A" figures only) are cross sections of holders prior to filling with intumescent material; and
- Figures 6B to 9B ("B" figures only) are cross sections of intumescent seals made respectively from the holders of Figures 6A and 9B.
- The sealing device shown in Figure 1 comprises an,
elongate holder 1 defining afirst channel 2 and asecond channel 3. Thechannels respective openings first channel 2 retains aresilient member 6 having a blade 6' protruding from thechannel 2 through theopening 4. Thesecond channel 3 containsintumescent material 7. Theopenings holder 1 and the blade 6' is at an angle of 45° to the face 8. - The
holder 1 is formed with abaffle 15 extending within thechannel 3. Thebaffle 15 is co-extensive with theopening 5 and defines astrait 19 intermediate the opening 5 and aninterior chamber 20 of the holder. Thechann el 3 thus consists of thestrait 19 and thechamber 20, the strait containing a minor proportion of theintumescent material 7 and the chamber containing a major proportion of the intumescent material. - As shown in Figure 2A, the sealing device may be installed in a
groove 10 along one side edge of adoor 11. When closed thedoor 11 engages astile 12 of a door frame. (The top crosspiece of the door frame is not shown in Figures 2A and 2B.) Thedoor 11 is a single action door opening in the direction,indicated by arrow A and the free edge of the blade 6' is the trailing edge of the blade when the door is closed. - Figure 2A shows the door closed under normal conditions, the blade 6' bearing against the
stile 12 and acting as a draught seal. In the event of a fire the blade 6' at least initially continues to bear against thestile 12 and acts as a smoke seal. - The
baffle 15 protects theintumescent material 7 in thechamber 20 against a probe which may be pushed through theopening 5 by a tamperer. - As shown in Figure 2B when the fire reaches the holder, the intumescent material in the
holder 1 intumesces through theopening 5 in the holder and fills, at 14, any gap between thestile 12 and the adjacent edge of thedoor 11 thereby acting as a fire seal. If the fire is on the same side of the holder as the opening 5, the intumesced material at 14 serves to protect the blade 6' against the heat of the fire. - The
holder 1 is made of material of high thermal conductivity e.g. aluminium. The resilient member is conveniently made of Neoprene. - The seal shown in Figure 3 is similar to that shown in Figure 1 except that it has two
channels 3 havingrespective openings 5 and each containingintumescent material 7. Thechannel 2 retaining theresilient member 6 is disposed between the twochannels 3. - In the event of a fire, on either side of the
holder 1 the blade 6' is protected from the heat of the fire by material which has intumesced through theopening 5 nearer the fire. - Although in the foregoing description particular reference has been made to a single action single door, the seals are equally applicable to double action single doors, single action double doors and double action double doors.
- The seals described above with reference to Figures 1 to 3 may be made by a method such as described below.
- Referring to Figure 4A, a
rigid holder 1 is elongate and of uniform cross section and comprises twotubular portions 2, each having a longitudinal bore orinterior chamber 3 and being interconnected by aweb 4. Eachtubular portion 2 comprises relativelythin walls 5 and a contiguous relativelythick portion 6 at a corner of the holder,the_portion 6 being of square cross section. Achannel 7 is defined by facing walls of the twotubular portions 2 and the connectingweb 4. - In making an intumescent seal, the
bores 2 are filled with a composition in the form of a slurry which is allowed or caused to harden to form a solid coherent mass ofintumescent material 20. Then a longitudinal saw cut bounded by dot-dash line 8 is made into eachportion 6 to remove a part thereof. The saw cut breaks into thebore 3 but leaves a web 9 (see Figure 1B) at the exterior of the holder and aweb 10 within the holder. There is thus formed a strait 11 having anopening 12 to the exterior of the holder and anopening 13 to thelongitudinal bore 3 of the holder. - The
web 10 constitutes a baffle, which, as can be seen from Figure 1B, restricts access to the bore orinterior chamber 3 of the holder by a probe pushed through theopening 12 by a tamperer. - A resilient draught and smoke sealing element 14 may be fitted to the seal. The sealing element 14 has a
foot portion 15 which is located in thechannel 7 and a blade 16 which extends away from the channel. - The intumescent material in either of the
tubular portions 2 can protect the sealing element from heat in the event of a fire. It is to be understood that it is not essential to provide the sealing element 14. - Figures 5A to 9A show other shapes of holders and Figures 5B to 9B show intumescent seals made therefrom.
- In the holder of Figures 5A and 5B the
channel 7 faces in the opposite direction to theopenings 12 in the intumescent seal, and the tubular portions are interconnected by a relatively thick portion 4'. The seal can be fixed to a structure such as a door by fasteners (e.g. nails) passed through the portion 4' and thechannel 7 into the structure. - The holder of Figures 6A and 6B has only one
tubular portion 2 and hence only oneinterior chamber 3. Ideally in use theopening 12 is disposed between the source of fire and the sealingelement 13. - The holder of Figures 7A and 7B has an inverted T-shaped
channel 7 to receive a correspondingly shaped base of a draught and smoke sealing element. - The holder of Figures 8A and 8B has only a single
tubular portion 2 and thechannel 7 faces in the opposite direction to theopening 12 in the seal. In alignment with thechannel 7 is a shallow V-shaped channel 16 inportion 4" of the holder. The seal can be fixed to a structure such as a door by fasteners (e.g.nails) passed through theportion 4" and thechannel 7 into the structure, heads of the fasteners being sunk into the channel 16. - In the holder of Figures 9A and 9B, the tubular portions have a common wall or web 5', there being no interconnecting
web 4. - The holders described above and as shown in the "A" figures may be made by extrusion of aluminium, aluminium alloy or plastics material. Such plastics material preferably has inclusions of material of high thermal conductivity.
- It will be appreciated that the seals described above and which comprise a resilient draught and smoke sealing element, may be used with such element omitted simply as an intumescent fire seal.
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT81304916T ATE11318T1 (en) | 1980-10-20 | 1981-10-20 | EXPANDING SEAL STRIPS. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8033772 | 1980-10-20 | ||
GB8033772 | 1980-10-20 | ||
GB8038921 | 1980-12-04 | ||
GB8038921 | 1980-12-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0050517A1 true EP0050517A1 (en) | 1982-04-28 |
EP0050517B1 EP0050517B1 (en) | 1985-01-16 |
Family
ID=26277270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81304916A Expired EP0050517B1 (en) | 1980-10-20 | 1981-10-20 | Intumescent seals |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0050517B1 (en) |
AU (1) | AU544875B2 (en) |
CA (1) | CA1186498A (en) |
DE (1) | DE3168376D1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988001335A1 (en) * | 1986-08-20 | 1988-02-25 | Dixon International Limited | Intumescent seals |
EP0283537A1 (en) * | 1986-03-20 | 1988-09-28 | MANIBS Spezialarmaturen GmbH & Co. KG | Cut-off tap |
EP0388773A2 (en) * | 1989-03-23 | 1990-09-26 | Theo Schröders | Fire-proof door |
EP0597517A1 (en) * | 1992-11-12 | 1994-05-18 | Alprokon Promotie En Ontwikkeling B.V. | Elongated profile provided with at least one insertion space |
US5492208A (en) * | 1994-02-01 | 1996-02-20 | Pemko Manufacturing Company | Intumescent security pin for fire rated doors |
FR2764631A1 (en) * | 1997-05-26 | 1998-12-18 | Magri | Door or swing door assembly |
GB2371827A (en) * | 2001-02-01 | 2002-08-07 | Lorient Polyprod Ltd | Gas seal |
US20140345886A1 (en) * | 2011-11-29 | 2014-11-27 | Sekisui Chemical Co., Ltd. | Thermally expandable multilayer packing for building material |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4676025A (en) * | 1986-01-02 | 1987-06-30 | Schlegel Corporation | Remotely activatable seal |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2335134A7 (en) * | 1975-12-08 | 1977-07-08 | Ind Handelsondernem Elton | Seal of heat:expanding material - has hollow portion closed on outside containing expandible material |
FR2348330A1 (en) * | 1976-04-13 | 1977-11-10 | Dixon International Ltd | FIRE RESISTANT SEAL |
FR2391347A1 (en) * | 1977-05-18 | 1978-12-15 | Ind Handelsonderneming Elt | INSULATION TAPE |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1529054A (en) * | 1974-10-01 | 1978-10-18 | Dixon Int Ltd | Fire resistant seals |
-
1981
- 1981-10-19 CA CA000388208A patent/CA1186498A/en not_active Expired
- 1981-10-20 AU AU76621/81A patent/AU544875B2/en not_active Ceased
- 1981-10-20 EP EP81304916A patent/EP0050517B1/en not_active Expired
- 1981-10-20 DE DE8181304916T patent/DE3168376D1/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2335134A7 (en) * | 1975-12-08 | 1977-07-08 | Ind Handelsondernem Elton | Seal of heat:expanding material - has hollow portion closed on outside containing expandible material |
FR2348330A1 (en) * | 1976-04-13 | 1977-11-10 | Dixon International Ltd | FIRE RESISTANT SEAL |
FR2391347A1 (en) * | 1977-05-18 | 1978-12-15 | Ind Handelsonderneming Elt | INSULATION TAPE |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0283537A1 (en) * | 1986-03-20 | 1988-09-28 | MANIBS Spezialarmaturen GmbH & Co. KG | Cut-off tap |
WO1988001335A1 (en) * | 1986-08-20 | 1988-02-25 | Dixon International Limited | Intumescent seals |
GB2213184A (en) * | 1986-08-20 | 1989-08-09 | Dixon International Ltd | Intumescent seals |
GB2213184B (en) * | 1986-08-20 | 1990-07-18 | Dixon International Ltd | Intumescent seals |
EP0388773A2 (en) * | 1989-03-23 | 1990-09-26 | Theo Schröders | Fire-proof door |
EP0388773A3 (en) * | 1989-03-23 | 1990-12-19 | Theo Schroeders | Fire-proof door |
EP0597517A1 (en) * | 1992-11-12 | 1994-05-18 | Alprokon Promotie En Ontwikkeling B.V. | Elongated profile provided with at least one insertion space |
US5492208A (en) * | 1994-02-01 | 1996-02-20 | Pemko Manufacturing Company | Intumescent security pin for fire rated doors |
FR2764631A1 (en) * | 1997-05-26 | 1998-12-18 | Magri | Door or swing door assembly |
GB2371827A (en) * | 2001-02-01 | 2002-08-07 | Lorient Polyprod Ltd | Gas seal |
GB2371827B (en) * | 2001-02-01 | 2004-05-19 | Lorient Polyprod Ltd | Gas seal |
US20140345886A1 (en) * | 2011-11-29 | 2014-11-27 | Sekisui Chemical Co., Ltd. | Thermally expandable multilayer packing for building material |
Also Published As
Publication number | Publication date |
---|---|
AU544875B2 (en) | 1985-06-20 |
DE3168376D1 (en) | 1985-02-28 |
AU7662181A (en) | 1982-04-29 |
EP0050517B1 (en) | 1985-01-16 |
CA1186498A (en) | 1985-05-07 |
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