WO2011124373A1 - Revêtement coupe-feu ou coupe-fumée pour une ouverture - Google Patents

Revêtement coupe-feu ou coupe-fumée pour une ouverture Download PDF

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Publication number
WO2011124373A1
WO2011124373A1 PCT/EP2011/001721 EP2011001721W WO2011124373A1 WO 2011124373 A1 WO2011124373 A1 WO 2011124373A1 EP 2011001721 W EP2011001721 W EP 2011001721W WO 2011124373 A1 WO2011124373 A1 WO 2011124373A1
Authority
WO
WIPO (PCT)
Prior art keywords
textile
guide
fire
closing element
side closing
Prior art date
Application number
PCT/EP2011/001721
Other languages
German (de)
English (en)
Inventor
Merlin MÜLLER
Daniel Reinhart
Stefan Siller
Original Assignee
Stöbich Brandschutz GmbH
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 Stöbich Brandschutz GmbH filed Critical Stöbich Brandschutz GmbH
Priority to EP11716825A priority Critical patent/EP2555831A1/fr
Publication of WO2011124373A1 publication Critical patent/WO2011124373A1/fr

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

Definitions

  • the invention relates to a fire or smoke protection cover for an opening with (a) a fire protection textile, (b) a guide, (c) a storage device by means of which the fire protection textile is mounted and which is guided on the guide and (d) a plurality of Closing devices, each having a textile-side closing element, which is arranged on an edge of the fire protection textile and a guide-side closing element which is attached to the guide, wherein the textile-side closing elements and the guide-side closing elements are designed for positive connection.
  • Such a fire or smoke protection cover is known from DE 203 10 017 U1.
  • a further disadvantage is that with known fire and smoke protection covers, it can be difficult to prove that the closing device withstands the loads even in case of fire.
  • DE 196 13 006 A1 discloses a device for refractory sealing of an opening is known. In the apparatus, a refractory flexible element is pulled along a path in front of the opening. The disadvantage of this is that it must be ensured that the rail is substantially free of dirt. Otherwise, it could lead to a blockage of the sliding movement of the flexible fire protection textile.
  • the invention has for its object to reduce disadvantages in the prior art.
  • the invention solves the problem by a generic fire or smoke protection cover, which has at least one locking device for holding the textile-side and the guide-side closing element engaged.
  • the locking device can be particularly simple. It is only necessary to absorb the forces originating from the fire protection textile without the closure device itself having to ensure that it remains securely closed even under load.
  • the opening can be securely closed even under load of the fire protection textile. Also, the secure closed holding the locking device is guaranteed. It is a further advantage that the opening and closing of the fire or smoke protection cover with a particularly simple kinematics is possible.
  • the invention is based on the finding that when closing the opening with the fire protection textile two separate functions of the connection between see the fire protection textile on the one hand and the counterpart on the edge of the opening on the other hand must be ensured.
  • the first function is to connect the fire protection fabric to a part of the wall attached to the opening Fire or smoke protection cover for picking up the load exerted by the fire protection textile.
  • the other function is to make sure that this connection does not break.
  • both functions are combined in one and the same device, which brings the above-mentioned disadvantages.
  • the closing elements can be of particularly simple construction.
  • a fire protection textile is understood to mean a flexible fabric structure which does not burn and offers fire resistance. It may, for example, be a glass filament fabric.
  • the term guide means any device which is arranged along the opening to be closed. It is possible that the guide comprises two or more guide elements which run on both sides of the opening. As a rule, the two guide elements are arranged parallel to one another.
  • the guide can be part of a frame.
  • the fire protection textile is fixed in the opening arrangement exclusively on a transverse side of the frame. A rail in which the fire protection textile is guided, is unnecessary.
  • the storage device is understood in particular to mean a device which makes it possible to bring the fire protection textile into an opening arrangement and a closure arrangement. In the opening arrangement, the opening is unobstructed. In the closure arrangement, the opening is closed by the fire protection textile.
  • the opening of the fire protection textile is completely closed in the closure assembly, so that no flames can penetrate through the opening.
  • the opening in the closure assembly is smoke-tightly sealed, the smoke-tightness in the relevant standards, in particular the DIN standards is defined.
  • Under the closing devices are understood in particular devices that are adapted to fix an edge of the fire protection fabric relative to an edge of the opening.
  • the closing devices are designed so that forces and stresses applied by the fire protection textile are safely absorbed.
  • Under the connection is understood in particular a meshing.
  • the guide-side closing elements are formed, for example, on side cheeks which extend along the opening.
  • the locking device is understood to mean any device which is designed to hold the locking elements in engagement with one another.
  • the locking device makes a release of the connection between the guide-side closing element and the textile-side closing element resistance.
  • the locking devices are present in addition to the closing elements.
  • a closing force that the two closing elements exert on one another has essentially no influence on a locking force with which the closing elements are held in engagement.
  • the locking force is significantly smaller than the closing force between the closing elements and may be less than one-tenth.
  • the locking force which prevents separation of the guide-side closing element from the textile-side closing element, forms an angle of, for example, more than 75 ° with the closing force which exerts the fire-resistant textile on the closing element on the textile side on the guide-side closing element.
  • this angle is substantially 90 °, among which It is understood that although it is possible that the angle is exactly 90 °, but that deviations of, for example, 20 ° are tolerable. Due to the large angle between the locking force and the closing force, the at least one locking device can be designed to be particularly simple and thus robust.
  • the closing force acts between each textile-side closing element and the associated guide-side closing element.
  • the closing force may be different for each textile-side closing element.
  • the locking force is for each textile-side closing element, the opposite force to the force that must be applied to the locking device in order to move at least one of the closing elements so that the closing elements are disengaged.
  • the invention solves the problem also by a fire or smoke protection cover for an opening, with (a) a fire protection textile, (b) a guide, (c) a storage device by means of which the fire protection textile is mounted and which is guided on the guide, and (D) at least one closing device, each having a textile-side closing element, which is arranged on an edge of the fire protection textile, and a guide-side closing element which is attached to the guide, wherein the textile-side closing element and the guide-side closing element adapted for positive connection are, wherein the angle between closing force and locking force is more than 70 °, in particular more than 80 °.
  • the closing force can also be referred to as holding force, since it fixes the fire protection textile against the forces acting on the fire protection textile forces.
  • the closing elements can therefore also be referred to as holding elements.
  • the fire or smoke protection cover comprises a plurality of locking devices.
  • the locking lungsvorraumen associated with respective closing devices It is particularly favorable if each locking device is assigned at least one locking device.
  • the at least one locking device has a locking element which is movable in a first direction, which extends in particular along the guide, and immovable in a second direction running perpendicular to the first direction.
  • each locking element can be moved in any direction within the scope of its elasticity, but this is not meant.
  • the decisive factor is that the resistance in the first direction is much smaller than in the second direction.
  • the locking element is bendable and / or displaceable in the first direction.
  • the locking element in the second direction, is rigid, which is to be understood in particular that the flexural rigidity is larger by, for example, a factor of 5 than in the first direction.
  • Such a locking element is easy to manufacture and also ensures a safe functioning of the locking device.
  • the locking element comprises at least one spring element, in particular a leaf spring.
  • the leaf spring is easily bendable in the first direction, but not in the second direction.
  • Such spring elements are easy to manufacture and simple, so that they are robust.
  • the bearing device has a rotor which is adapted to actuate the at least one locking device, so that the textile-side closing element and the guide-side closing element can be disengaged.
  • the rotor may be configured such that when the bearing device is moved along the guide, it successively comes into contact with one, two or more locking devices and moves or deforms them in such a way that the closing elements engage. Upon further movement along the guide the contact ends, and the locking devices move back to the starting position.
  • the bearing device has at least one runner, which is set up for deflecting the locking element, so that the textile-side closing element and the guide-side closing element can come into positive connection, and for ending the deflection, so that the locking element is an out-of-engagement element.
  • Devices of textile-side closing element and guide-side closing element inhibits.
  • the textile-side closing element has a hole, which may be, for example, an oval hole or an eyelet.
  • the guide-side closing element has at least one hole.
  • the guide-side closing element has a projection, in particular a pin.
  • This pin is designed to cooperate with the textile-side closing element, which usually has a hole. If a runner is used for closing, then this is designed so that it inverts the oval hole over the pin during a movement along the guide, so that a positive connection is formed. Slippage of the textile-side closing element with the hole is prevented by the locking device.
  • the guide-side closing element has a hole, preferably the textile-side closing element has a projection such as a pin.
  • the fire protection textile has a plurality of transverse struts, at whose end in each case the textile-side closing element is attached.
  • the cross braces stiffen the fire protection textile.
  • Another advantage of the crossbars is that they allow a secure connection of the guide-side closing element and the textile-side closing element.
  • the storage device comprises an unwinding device for storing the fire protection textile as a winding.
  • the unwinding device is set up for laying the fire protection textile on at least one side. tenwange, especially on two side walls. Hang up means that there is essentially no tangential movement at the moment of first contact between the guide-side closing element and the textile-side closing element.
  • the bearing device may comprise a winding shaft, which is so rigid that it rests on both sides on the guide elements of the guide or the side cheeks and spans the opening. It is possible to seal off large ceiling openings with the fire or smoke protection cover according to the invention, without a supporting substructure, for example by steel cables, being necessary in the opening.
  • the fire or smoke protection cover may have a drive for moving the bearing device along the guide, this drive can be controlled automatically. As a rule, it will be an electric motor.
  • the fire protection textile unwinds and is stretched over the opening. Since there is no tangential movement between the guide-side closing element and the textile-side closing element at the moment of coming into contact, it is possible to design the unwinding device in such a way that tensile forces in the textile are absorbed along the guide during a movement of the bearing device. Such tensile forces are essentially unavoidable in textile ceiling finishes such as the present fire or smoke protection cover. It is possible, but not necessary, for the bearing device to have a housing.
  • the storage device is arranged unclad in a circumferential niche.
  • the storage device is then in a parking position on one side of the opening within, for example, a ceiling niche.
  • the complete storage device moves out of the parking position.
  • An additional veneering of the parking position is unnecessary because it could hinder the movement of the storage device.
  • the fire protection textile can have an edge stabilizing longitudinal reinforcement, for example in the form of an inserted, arched sheet metal strip. This longitudinal stripping has the effect of bridging the areas between the individual closing elements.
  • the fire protection textile is preferably connected on a transverse side fixed to a frame of the fire or smoke protection cover. This results in a very good seal.
  • the fire protection textile is stored folded by means of the storage device.
  • the fire-resistant textile has a plurality of guide-side folds and a plurality of folds facing away from the guide, wherein the fire protection textile has lateral struts in the guide-side folds, by means of which it is guided in a longitudinal guide.
  • the fire protection textile has cross struts in folds facing away from the guide, which are connected to textile-side closing devices. These textile-side closing elements then act together in respectively associated guide-side closing elements.
  • An advantage of this embodiment is that the cross struts are consistently performed in the guide side folds in the longitudinal guide.
  • the transverse struts of the folds facing away from the guide execute a pivoting movement during the unfolding of the fire protection textile and are then fixed relative to the guide.
  • the folds facing away from the fold generally alternate with the guide-side folds.
  • Closing element is connected.
  • each closing element is connected to at least one locking device.
  • the winding shaft is designed so stiff that it supports the fire protection textile at any time of movement of the opening assembly to the closure assembly.
  • Figure 1 shows a half-side section of a fire or inventive
  • FIG. 2 shows a detail of the view according to FIG. 1,
  • FIG. 1 with the subfigures 3 (a), 3 (b) and 3 (c) the fire or smoke protection cover according to FIG. 1 in three scale-oriented views, FIG.
  • FIG. 4 shows views of a part in FIGS. 4 (a), 4 (b) and 4 (c)
  • FIGS. 5 (a), 5 (b) show further closing devices and locking devices of a further fire or smoke protection cover according to the invention
  • FIGS. 6 (a), 6 (b) show further closing devices and locking devices of a further fire or smoke protection cover according to the invention.
  • FIG. 1 shows a fire or smoke protection cover 10 with a fire protection textile 12, a guide 14 which has a first guide element 16, and a bearing device 18 in the form of an unwinding device.
  • the fire protection textile 12 is wound on a winding shaft 20 which extends in a transverse direction.
  • the winding shaft 20 is rotatably attached to a rotor 22.
  • the rotor 22 is mounted translationally displaceable on the guide element 16.
  • a total of the bearing device 18 is mounted on the guide 14 so as to be longitudinally displaceable.
  • the guide 14 also has a first side wall 24 which is fixedly connected to the guide element 16 via a plurality of webs 26.1, 26.2,.
  • a plurality of closing devices 30.1, 30.2, ... are arranged.
  • Each closing device 30 comprises a guide-side closing element 32, in the present example in the form of a pin which extends substantially perpendicularly from the upper side 28 of the side cheek 24 to the fire protection textile 12.
  • the closing device 30.1 comprises the guide-side closing element 32.1 in the form of a cylindrical pin.
  • Each locking device 30 also has a textile-side closing element, which is designed to enter into a positive connection with the associated guide-side closing element 32.
  • the textile-side closing elements such as the closing element 34.5, in the present embodiment each comprise an oval eyelet 36.5, in which the guide-side closing element 32.5 engages in the form of the pin.
  • FIG. 1 shows the fire or smoke protection cover in a half-open position, in which the fire protection textile 12 only partially covers an opening 38.
  • the rotor 22 moves on the guide 14 in a closing direction R.
  • the winding shaft 20 and the textile-side closing elements 34 which are fastened to the fire protection textile 12 rotate in a form-fitting manner with the respectively associated guide-side closing element 32 connected.
  • each locking device 30 is assigned a locking device 40.
  • Each locking device 40 comprises a locking element 42 in the form of a leaf spring.
  • the Gelelement 42 (for example, locking element 42.7) is movable in a first direction R1, which exactly corresponds to the closing direction R in the present case, namely bendable.
  • a second direction R2 which in the present case is perpendicular to the first direction R1, the leaf spring, however, is largely immobile.
  • the locking element 42.7 In order for the textile-side closing element 34.7 to be able to disengage from the guide-side closing element 32.7, the locking element 42.7 would have to be moved in the second direction R2, which is not possible. In this way, the locking device 40.7 holds the guide-side closing element 32.7 in engagement with the textile-side closing element 34.7.
  • the fire protection textile 12 has a plurality of transverse struts 44 (for example 44.6, 44.7) at the respective ends of which the textile-side closure elements 34 are fastened.
  • Figure 1 shows a half-side view of the fire or smoke protection cover 10.
  • the guide 14 For each part of the guide 14 there is a mirror image with respect to a y-z plane component, wherein the x-y plane is spanned by the opening 38.
  • the winding shaft 20 at a second runner which is guided on a second guide.
  • the guide 14 can be fastened via wall anchors 46 in a not shown wall or ceiling of a building, also not shown.
  • the guide 14 forms, optionally with perpendicular to the guide 14 extending transverse elements a frame around the opening 38th
  • Figure 2 shows that the rotor 22 is formed for deflecting each of those locking element, which is arranged directly in the closing direction R in front of the rotor 22.
  • the rotor 22 may have a rigid deflection element 48, as in the present case. If the deflection element 48 comes into contact with the locking element 42 (in this case: 42.4) in the form of the leaf spring, then it is inserted in the first direction R1 deflected. If the runner 22 moves further, then the textile-side closing element (here: 34.4) comes into positive-locking connection with the guide-side closing element (here: 32.4) in the form of the spigot.
  • the textile-side closing element here: 34.4 comes into positive-locking connection with the guide-side closing element (here: 32.4) in the form of the spigot.
  • the deflecting element 48 of the rotor 22 releases the associated locking element 42.4 so that it snaps back and prevents the guide-side closing element 32.4 and the textile-side closing element 34.4 from becoming disengaged.
  • the locking element 42.3 ends like all locking elements in the immediate vicinity of the associated guide-side closing element 32.3, so that slipping out of the associated textile-side closing element 34.3 is prevented.
  • the deflecting element 48 deflects the respective locking elements 42, so that thereafter the eyelet 36 of the respective textile-side closing element 34 can be detached from the guide-side closing element 32. Only then does the deflection element 48 lose contact with the locking element, which then snaps back.
  • FIG. 2 schematically shows a longitudinal reinforcement 50 in the form of a sheet-metal strip, which is arranged on both longitudinal sides of the fire protection textile 12, in each case adjacent textile-side closure elements 34, for example the two
  • Closing elements 34.3 and 34.4 to keep at a defined distance. This ensures that when unwinding each eyelet 36 hits the associated pin.
  • the storage device 18 can be unclad in a circumferential Niche ceiling or wall are mounted in the opening 38 is located. An additional veneering is possible, but not necessary.
  • the winding shaft 20 is designed so that it spans the opening 38 rigid. At least for traversing the opening 38, no supporting substructure is required.
  • the fire or smoke protection cover also includes at least one, but in particular two not shown coupled drive and brake systems.
  • a tubular drive integrated into the winding shaft 20 makes it possible to wind up the fire protection textile 12 and thus also the opening movement.
  • another tubular drive is responsible, which is mounted in a drive shaft stationary on the closing side and is connected by means of a rotating cable on both sides of the rotor 22.
  • FIG. 2 schematically shows a closing force Fs which exerts the fire protection textile 12 on the textile-side closing element 32.7.
  • the locking force F R extends at an angle ⁇ of more than 70 ° and is smaller than the closing force F s .
  • FIG. 3 (b) shows the fire or smoke protection cover 10 in a dimensionally top view. It can be seen that the guide, which is provided in Figure 1 generally with the reference numeral 14, the two guide elements 16.1 and 16.2, which are arranged on both sides of the opening to be closed. You can also see the two side cheeks 24.1 and 24.2.
  • FIG. 3 (c) shows a sectional view through the rotor 22 and the winding shaft 20.
  • FIG. 3 (a) shows that the rotor 22 has a tubular drive 52 in the form of an electric motor arranged at least partially in the winding shaft 20.
  • the tubular drive 52 is electrically contacted via a flat cable 54.
  • a support roller 56 with the runner 22 runs on the guide element 16.
  • FIG. 4 (c) shows a perspective view of a closing device 30, wherein the associated locking device 40 is connected to the guide-side closing element 32. This is particularly good in Figure 4 (b), left field to see.
  • the locking device 40 is in the form of an elongate spring which is fixed at one end, in the present case on the side cheek 24, and which is integrally connected at the opposite end with the guide-side closing element 32.
  • the transverse strut 44 is shown schematically, at the end of which a head 58 is arranged.
  • the head 58 engages behind a recess 60 in a wall 62 facing the fire protection textile.
  • the head 58 together with the end of the transverse strut 44, forms the textile-side closing element 34.
  • FIG. 4 (a) shows a lever 64 of the guide-side closing element 32, which can be actuated by the schematically drawn deflection element 48 of the rotor.
  • the lever 64 runs in a slot 66 of a housing 68 which is fixed to the side cheek 24.
  • FIG. 5 (a) shows a section of a further embodiment of a fire or smoke protection cover 10 according to the invention, in which the fire protection textile 12 is present folded.
  • the fire protection textile 12 has a A plurality of guide-side folding points 68.1, 68.2, 68.3,..., Which in the folded state face the guide 14, in particular the guide element 16.1.
  • the fire protection textile 12 also has guide-facing folding points 70.1, 70.2, which are arranged alternately to the guide-side folding points 68.
  • the fire protection textile 12 has guide-side folds 68.1, 68.2, ... transverse struts 72.1, 72.2, ... by means of which it is longitudinally movably guided in a longitudinal guide 74, which is part of the guide element 16.1.
  • the fire protection textile 12 has transverse struts 76.1, 76.2,..., Which are connected to associated textile-side closure elements 34.1, 34.2,.
  • the transverse struts 72.1, 72.2,... Move in the longitudinal guide 74.
  • the transverse struts 76.1, 76.2,. .. perform a combined longitudinal and pivotal movement and then engage in the respective guide-side closing elements 32.1, 32.2, which have been opened by the deflection element 48 of the rotor at the right time in each case. Thereafter, the respective guide-side closing elements 32 close, as has been described above for the figure 4.
  • FIG. 5 (b) shows a detailed view of the closing device 30, in which according to FIG. 5 (a) it can be seen that the locking device 40 is firmly connected to the guide-side closing element 32.
  • the locking device 40 is formed by a leaf spring, at the free end of the guide-side closure member 32 is integrally formed.
  • FIG. 6 (a) shows a further embodiment of a closing device 30 for a fire or smoke protection cover 10 according to the invention, in which the textile-side closing element 34 is formed by a pin protruding from the fire protection textile 12, which represents the head of the transverse strut 76.
  • the end- The steering element 48 interacts with a V-shaped projection 78 of the guide-side closing element 32, so that it is moved in the direction of the transverse strut 76 when the deflection element 48 slides past the guide-side closing element 32.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

L'invention concerne un revêtement coupe-feu ou coupe-fumée pour une ouverture (38), comprenant un textile ignifuge (12), un guide (14), un dispositif d'appui (18) qui permet de monter le textile ignifuge (12) et qui est guidé le long du guide (14), et (d) au moins un dispositif de fermeture (30) qui présente respectivement un élément de fermeture (34.4) qui est côté textile et est disposé sur un bord du textile ignifuge (12), et un élément de fermeture (32.4) qui est côté guide et est fixé au guide (14); l'élément de fermeture (34.4) côté textile et l'élément de fermeture (32.4) côté guide sont conçus pour une liaison par complémentarité de forme, caractérisé en ce que qu'au moins un dispositif de verrouillage (40.4) permet de maintenir en contact l'élément de fermeture (34.4) côté textile et l'élément de fermeture (32.4) côté guide.
PCT/EP2011/001721 2010-04-09 2011-04-07 Revêtement coupe-feu ou coupe-fumée pour une ouverture WO2011124373A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11716825A EP2555831A1 (fr) 2010-04-09 2011-04-07 Revêtement coupe-feu ou coupe-fumée pour une ouverture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010014459A DE102010014459A1 (de) 2010-04-09 2010-04-09 Brand- oder Rauchschutzabdeckung für eine Öffnung
DE102010014459.2 2010-04-09

Publications (1)

Publication Number Publication Date
WO2011124373A1 true WO2011124373A1 (fr) 2011-10-13

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Application Number Title Priority Date Filing Date
PCT/EP2011/001721 WO2011124373A1 (fr) 2010-04-09 2011-04-07 Revêtement coupe-feu ou coupe-fumée pour une ouverture

Country Status (3)

Country Link
EP (1) EP2555831A1 (fr)
DE (1) DE102010014459A1 (fr)
WO (1) WO2011124373A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104474647A (zh) * 2014-11-26 2015-04-01 宁波大地化工环保有限公司 一种料坑防火装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011116281A1 (de) * 2011-10-19 2013-04-25 Stöbich Brandschutz GmbH Brand- oder Rauchschutzvorrichtung zum Verschließen einer Deckenöffnung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195594A (en) 1991-08-12 1993-03-23 Allen Thomas H Apparatus and method for rapidly and reliably sealing off certain exit and entrance ways in response to smoke or fire
DE19613006A1 (de) 1996-03-21 1997-09-25 Sicherheits U Brandschutztechn Vorrichtung zum feuerfesten Verschließen einer Öffnung
DE20310017U1 (de) 2003-06-28 2004-11-04 Bs Brandschutztore Gmbh & Co. Kg Brandschutzvorrichtung
US6942001B1 (en) * 2003-09-04 2005-09-13 Grantlin, Inc. Magnetic sealing apparatus for portal covering
WO2010010152A1 (fr) * 2008-07-25 2010-01-28 Becoflex S.A. Dispositif de couverture d'une surface

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195594A (en) 1991-08-12 1993-03-23 Allen Thomas H Apparatus and method for rapidly and reliably sealing off certain exit and entrance ways in response to smoke or fire
DE19613006A1 (de) 1996-03-21 1997-09-25 Sicherheits U Brandschutztechn Vorrichtung zum feuerfesten Verschließen einer Öffnung
DE20310017U1 (de) 2003-06-28 2004-11-04 Bs Brandschutztore Gmbh & Co. Kg Brandschutzvorrichtung
US6942001B1 (en) * 2003-09-04 2005-09-13 Grantlin, Inc. Magnetic sealing apparatus for portal covering
WO2010010152A1 (fr) * 2008-07-25 2010-01-28 Becoflex S.A. Dispositif de couverture d'une surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104474647A (zh) * 2014-11-26 2015-04-01 宁波大地化工环保有限公司 一种料坑防火装置

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DE102010014459A1 (de) 2012-05-10
EP2555831A1 (fr) 2013-02-13

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