EP1685634A1 - Dispositif coupe-feu, ensemble pour l'integration d'un dispositif coupe-feu, procede de realisation d'un tel ensemble, et passe-cables coupe-feu - Google Patents

Dispositif coupe-feu, ensemble pour l'integration d'un dispositif coupe-feu, procede de realisation d'un tel ensemble, et passe-cables coupe-feu

Info

Publication number
EP1685634A1
EP1685634A1 EP04797655A EP04797655A EP1685634A1 EP 1685634 A1 EP1685634 A1 EP 1685634A1 EP 04797655 A EP04797655 A EP 04797655A EP 04797655 A EP04797655 A EP 04797655A EP 1685634 A1 EP1685634 A1 EP 1685634A1
Authority
EP
European Patent Office
Prior art keywords
housing
fire protection
protection device
fire
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04797655A
Other languages
German (de)
English (en)
Inventor
Georg Wichmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Priority claimed from DE200410009101 external-priority patent/DE102004009101A1/de
Priority claimed from DE202004011259U external-priority patent/DE202004011259U1/de
Application filed by Individual filed Critical Individual
Publication of EP1685634A1 publication Critical patent/EP1685634A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • H02G3/0412—Heat or fire protective means
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/065—Physical fire-barriers having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/04—Sealing to form a firebreak device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462—Tubings, i.e. having a closed section
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings

Definitions

  • Fire protection device arrangement for installing a fire protection device and method for producing an arrangement, as well as fire protection cable duct
  • the present invention relates to a fire protection device for
  • Invention an arrangement for installing a fire protection device according to the preamble of claim 17 and a method for producing an arrangement according to the preamble of claim 25.
  • Fire protection devices of the type mentioned at the outset are arranged in an opening in a wall or ceiling which is adapted to the cross-sectional shape of the housing of the fire protection device.
  • the breakthrough is cut out for installation in an existing wall or ceiling.
  • the dimension of the opening is selected in such a way that the fire protection device can be pushed into it, with a space remaining between the housing of the fire protection device and the surrounding wall or ceiling.
  • the housing is not arranged centrally with respect to the surrounding wall of the opening, but the housing lies against one side of the opening.
  • the sides of the opening facing the fire protection device have uneven surfaces due to the opening of the opening, so that the fire protection device follows the course of the
  • the object of the present invention is therefore to provide a fire protection device of the type mentioned at the outset, which is easy to handle and to assemble.
  • the fire protection device comprises at least one mounting element which is suitable for being adapted to a clear distance existing between the housing and the opening.
  • the mounting element enables the largely evenly spaced arrangement of the
  • the mounting element can be used as a spacer in the mounting position.
  • the mounting element proves to be equally advantageous when casting a wall or ceiling section in which the fire protection device is to be arranged.
  • the fire protection device can be fastened to the formwork by means of the mounting element and then cast in at least in sections.
  • the fastening ensures a secure arrangement of the fire protection device during the casting of the wall or ceiling, so that the position of the fire protection device cannot change during the casting.
  • the fire protection device can be arranged at a distance from the formwork by means of the at least one assembly element.
  • the mounting element enables the fire protection device to be supported on the surrounding ceiling or wall when the ceiling or wall is passed through.
  • the at least one assembly element can be transferred from a stowed position into an assembly position.
  • the fire protection device can thus be stacked, for example, for transport and / or storage purposes. Only when the fire protection device is installed is the at least one transferred
  • the mounting element can be essentially flush with the surface of the housing in the stowed position. This has the advantage that the fire protection device can be stacked, for example during transport or storage, without the mounting element protruding beyond the housing in a disruptive manner.
  • the mounting element can be set up at an angle to the housing in the mounting position.
  • the mounting element is only set up when the fire protection device is installed.
  • the mounting element enables, for example, the support of the fire protection device when carrying out the ceiling, the use as a spacer or the attachment to a wall or formwork.
  • at least one slot can be arranged on the housing, which surrounds the mounting element in sections.
  • the slot is preferably made by punching on the housing. This provides the mounting element in a simple manner, which can be bent out and set up relative to the housing.
  • the contour of the slot can essentially correspond to the contour of the mounting element. This enables the punching out of assembly elements, which can have different contours, so that the fire protection device can be easily adapted to different installation situations.
  • a substantially rectangular contour is preferably selected.
  • the slot can be made substantially U-shaped.
  • the slot can also be made essentially L-shaped, for example.
  • Such shaped slots can be easily attached to the housing due to their symmetrical contour.
  • the mounting element can be attached separately to the housing.
  • the mounting element is attached in sections to the housing, as a result of which the separately arranged mounting element can be transferred from the stowed position to the mounting position.
  • the mounting element can be attached, for example, by welding, riveting or the like.
  • the mounting element can also be adequately fastened by hooking or clamping on the housing.
  • recesses can be provided on the housing, for example, into which the mounting element is hooked in sections.
  • the mounting element can have at least one through-hole which serves to receive a fastening means.
  • the fastening means can be, for example, a screw or the like, by means of which the fire protection device can be fastened to the wall or ceiling.
  • the at least one assembly element consists of metal.
  • the mounting element can preferably be an elongated metal strip.
  • the fire protection device can comprise at least two assembly elements.
  • Fire protection device with several mounting elements which are arranged in particular distributed over the housing, allows greater flexibility with regard to fastening or supporting the fire protection device on the wall, ceiling or the like.
  • the housing can be closed at the end with lids, as a result of which the interior of the fire protection device is protected during transport or storage.
  • the covers can also be used for sound insulation and thermal insulation.
  • the interior of the housing can advantageously be filled at least in sections with an insulating material. Filling the interior of the housing with insulation material makes a significant contribution to sound insulation, whereby the insulation material can be designed as one or more foam plugs and / or mineral wool. For filling, mineral wool is introduced into the interior of the housing and / or the end of the housing is closed at least in sections with foam plugs.
  • the housing can have one or more openings arranged distributed over the circumference of the housing.
  • the openings can be distributed over the circumference of the housing.
  • the housing, which surrounds the at least one fire protection element at least in sections, can preferably be designed in two parts, wherein there can be no direct contact between the two housing halves.
  • Measures contribute to a reduction in the thermal conductivity of the fire protection device and to a reduction in sound transmission through the sheet metal of the housing.
  • At least one expandable graphite strip can be arranged on the housing, which at least partially surrounds the housing.
  • the expandable graphite strip foams in such a way that the existing space between the housing and the wall or ceiling surrounding the housing is sealed in a smoke-tight manner. This ensures that the breakthrough surrounding the housing is also closed in the event of a fire.
  • the fire protection device can be suitable for arrangement according to one of claims 17 to 24.
  • Another object of the present invention is to propose an arrangement for installing a fire protection device in an opening, in which the part of the housing of the fire protection device arranged in the opening closes essentially without a gap with the surrounding wall or ceiling.
  • the part of the housing arranged in the interior of the opening is at least partially surrounded by a filler material.
  • the filler material surrounding the housing of the fire protection device is essentially gap-free with the surrounding wall or ceiling. In this way, thermal insulation and sound insulation contributed.
  • the filler material helps to fix and dampen the fire protection device in the opening.
  • the filling material can advantageously be introduced into the opening by means of a manually operable device.
  • the filling material can be introduced easily and inexpensively without additional mechanical outlay.
  • the filling material can be sprayable. This enables the filling material to be introduced in a simple manner by spraying, it thereby being possible to ensure that the housing is largely largely surrounded by the filling material.
  • the filling material can be foaming.
  • Breakthrough arranged part of the housing of the fire protection device is in this way essentially evenly surrounded by the filler material and gaps between the
  • the filler material can be self-curing, so that after a period of time that is dependent on the material used, filler material that is superfluous can be removed in a simple manner.
  • the filling material can still be processed during the curing process, so that subsequent corrections to the arrangement of the fire protection device in the opening are possible.
  • the fire protection device can comprise at least one mounting element, by means of which the fire protection device can be fixed to the surrounding wall or ceiling. It is therefore not necessary to fix the fire protection device in position during the introduction and curing of the filler material with spacers or the like.
  • the fire protection device can preferably have at least one expandable graphite strip. The expanded graphite strip is used to seal the breakthrough in a smoke-tight manner in the event of a fire if the filler material is burnt.
  • the fire protection device to be arranged can be designed according to one of claims 1 to 16. Such a fire protection device can be arranged in a simple manner in the opening and fixed to the surrounding wall to the in
  • Housing is at least partially introduced into the opening, and the housing is at least partially surrounded with a filler.
  • the filling material can be introduced into the opening by means of a manually operable device.
  • the at least one assembly element can be transferred from a stowed position to an assembly position.
  • the present invention also relates to a fire protection
  • a fire protection cable bushing of the aforementioned type is well known. Such systems are used for preventive fire protection within buildings.
  • Fire protection cable duct inserted into the masonry and the cables are led through the intended interior.
  • the Palusol packages foam up and completely seal the interior of the cable duct.
  • the partition can only be maintained from one side. In order to ensure functionality, the entire remaining interior has been clogged with mineral wool when the cover is only attached on one side.
  • Such cable bushings are now also equipped with insulating material, which completely fills the interior.
  • the insulation material used is, for example, mineral wool or a similar filler that has heat and sound insulation properties.
  • Insulation is destroyed and without, for example, dirt particles escaping from the cable duct.
  • this object is achieved by a cable bushing with the characterizing features of claim 28.
  • the insulation material is a package of insulation material that only fills the housing in sections and is provided on one or both sides of the opening of the housing can ensure that no dirt escapes from the housing, for example if a cable is retrofitted through the fire protection
  • the present invention fulfills the purpose of ensuring a functionally reliable seal against cold and hot flue gas in a cable insulation that foams in the event of fire, which can also be used with one-sided accessibility, without having to completely stuff the interior of the insulation. It also has the purpose of separating the flue gas seal functionally from the fire seal, so that the insulation packs themselves no longer have to foam up, so that the bulkhead basically remains functional even without a seal. It can advantageously be provided that the dam material packet has a shape that corresponds at least in sections to the housing contour. This ensures an optimal seal and a positive connection between the
  • the insulation pack consists of mineral wool.
  • Mineral wool has the necessary sound-insulating as well as heat-insulating properties.
  • the dam pack contains a binder.
  • the binder supports the maintenance of the spatial shape of the
  • Insulation packets which favors the positive locking.
  • the dam material package is equipped with a bore.
  • the drilling essentially fulfills two functions. On the one hand, the cable harness is passed through it, and on the other hand, the hole can be gripped behind and the insulation package can be removed.
  • a cover can advantageously be provided, through which the fire protection cable duct can be closed at least on one side.
  • the cover is connected to the pack of dam material. Accordingly, the lid can be removed from the outside, whereby the dam material package is removed in the same way. Accordingly, the lid can be equipped with a handle.
  • Figure 1 is a schematic view of a fire protection device in a position arranged in an opening.
  • FIG. 2 shows a perspective view of a housing of the fire protection device according to FIG. 1;
  • FIG. 3 shows a schematic view of the housing according to FIG. 2 in a position arranged in the opening
  • FIG. 5 shows a cable bushing according to the invention in a perspective view
  • FIG. 7 shows a cross section through a housing of a cable bushing installed flush with the wall or ceiling
  • FIG. 9 shows a cross section through a housing with insulation packages as a lid.
  • the illustration shows a fire protection device 1 in a position arranged in an opening, for example in a wall or ceiling.
  • the fire protection device 1 comprises a housing 2, which has an essentially cuboid cross-section, two expandable graphite strips 3 surrounding the housing 2, and a multiplicity of mounting elements 4 arranged on the housing 2.
  • the housing 2, in its position arranged in the opening, is at least in sections from surrounded a blanket 5.
  • the dimension of the opening is selected such that when the fire protection device 1 is arranged, an interspace 6 remains in the opening between the housing 2 and the ceiling 5 surrounding the housing 2 at least in sections.
  • an interspace 6 In the space 6 is by means of a manually operable device
  • Filling material 7 introduced, which essentially completely fills the space 6.
  • the filling material 7 is preferably self-curing.
  • a sprayable mortar or a sprayable, foaming plastic can be used as the filling material 7.
  • FIG. 2 shows the housing 2 of the fire protection device 1.
  • the housing 2 comprises side walls 9 which enclose a hollow interior.
  • the interior of the housing 2 has fire protection elements that foam up in the event of a fire and can close the interior of the housing 2 in a smoke-tight manner.
  • Openings 10 are provided on the end faces of the housing 2 and are used for the passage of cables, pipes or the like through the fire protection device 1.
  • the mounting elements 4 are preferably formed on the side walls 9 of the housing 2 by punching slots 8.
  • the contour of the punched slots 8 essentially corresponds to the contour of the mounting elements 4.
  • the slots 8 are essentially U-shaped, so that they form essentially web-shaped mounting elements 4.
  • the assembly elements 4 can be transferred from a stowed position into an assembly position. In the stowed position, the mounting element 4 is essentially flush with the surface of the respective side wall 9 from which they are punched out.
  • the slots 8 are arranged on the side walls 9 such that the two parallel legs of the essentially U-shaped slots 8, starting from the outer edge 11 of the side wall 9, face the opposite outer edge 11 of the side wall 9. This means that the necessary for installation can be
  • assembly elements 4 are individually bent out of the surface of the side wall 9 and pivoted through an angle with respect to the outer edge 11.
  • the bending movement of the mounting elements 4 is preferably directed away from the center of the side wall 9.
  • the remaining mounting elements 4 can remain in their original position, which is flush with the housing 2.
  • the slots 8 are preferably punched into the
  • a Fasteners can serve, for example, the implementation of a screw or the like.
  • Fig. 3 shows the fire protection device 1 in a position installed in the breakthrough, the gap 6 not with the
  • Filling material 7 was filled.
  • at least individual mounting elements 4 are bent before the fire protection device 1 is introduced into the opening such that they extend essentially perpendicular to the surface of the respective side wall 9 on which the mounting elements 4 are arranged ,
  • the length of the mounting elements 4 is selected such that they rest at least in sections on the ceiling 5 surrounding the housing 2. This enables the housing 2 to be fastened to the ceiling 5 in such a way that the housing 2 is spaced substantially uniformly from the surrounding ceiling 5.
  • the intermediate space 6 created in this way, surrounding the housing 2, is as in FIG.
  • Fig. 1 shown can be filled with the filling material 7 in the manner already described.
  • a fire protection cable duct 101 according to the invention essentially comprises a housing 102, palusol packages 103 arranged inside the housing 102, and a dam material package 107.
  • FIG. 4 shows a cable duct 101 according to the invention as it is introduced into a masonry 104. Is also a
  • Cable harness 109 indicated how it is laid through the fire protection cable duct 101.
  • the housing 102 has a cuboid shape and an interior through which the cables 109 to be laid can be guided. Furthermore, the interior is equipped with Palusol packages 103, which are applied to the inner wall of the housing 102.
  • a dam material packet 107 is provided, which is arranged on one side of the housing 102. It is essential that that
  • Dammstoff-Packet 107 does not fill the entire interior of the cable duct 101, as is known in the prior art, but only a portion, advantageously in the area of the housing opening.
  • the dam material packet 107 advantageously has a predetermined shape which corresponds to the shape of the housing interior.
  • the dam material package 107 may, for example, have been treated with a binder or consist of a material which naturally maintains its spatial shape in an elastic manner. It is furthermore provided that the dam material packet 107 is equipped with a bore 108, which is used for cable entry and also for handling, so that the dam material packet 107 can be easily gripped and removed.
  • the cable bushing 101 also has a cover 105 which is fastened to the housing 102 with fastening elements 106.
  • the preferred embodiment of the cable bushing 101 according to the invention shown here is only equipped on one side with a dam material packet 107. Of course, are conceivable also embodiments that are equipped on both sides with both a lid 105 and a dam material package 107.
  • FIGS. 6 and 7 show the installation of a housing of a cable bushing flush with the wall or ceiling.
  • the insulation packs 107 which can be made of mineral wool or foam, can also serve as a cover, so that a separate cover can be dispensed with.
  • Fire protection device Housing Expandable graphite strips Mounting element Ceiling Intermediate space Filling material Slot Side wall Opening Outside edge Through hole Fire protection cable duct Housing Palusol package Masonry Lid Fastening elements Dammstoff-Package Hole Cable

Abstract

L'invention concerne un dispositif coupe-feu (1) utilisé pour faire passer des câbles ou des tubes par un passage ménagé dans un mur ou un plafond, lequel comprend un corps (2) qui présente, dans sa partie intérieure, au moins un élément coupe-feu dont le volume peut augmenter en cas d'incendie pour remplir ledit corps (2) au moins temporairement et dans une section. Ce dispositif coupe-feu (1) comprend au moins un élément de montage (4) qui est conçu pour être adapté à l'espace libre existant entre le corps (2) et ledit passage. L'invention concerne en outre un passe-câbles coupe-feu (101) qui comprend un corps (102) ouvert sur ses deux côtés, qui présente un espace intérieur et est pourvu d'une matière remplissant au moins une partie dudit espace intérieur sous l'effet de la chaleur. Dans ledit boîtier (102) est également placé un matériau isolant, notamment un bloc de matériau isolant (107) qui remplit seulement une section du corps (102) et est disposé sur un seul côté ou sur les deux côtés de l'ouverture du boîtier (102).
EP04797655A 2003-11-07 2004-11-05 Dispositif coupe-feu, ensemble pour l'integration d'un dispositif coupe-feu, procede de realisation d'un tel ensemble, et passe-cables coupe-feu Withdrawn EP1685634A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20317313 2003-11-07
DE200410009101 DE102004009101A1 (de) 2004-02-25 2004-02-25 Brandschutzvorrichtung, Anordnung zum Einbau einer Brandschutzvorrichtung sowie Verfahren zur Herstellung einer Anordnung
DE202004011259U DE202004011259U1 (de) 2003-11-07 2004-07-17 Brandschutz-Kabeldurchführung
PCT/EP2004/012547 WO2005046016A1 (fr) 2003-11-07 2004-11-05 Dispositif coupe-feu, ensemble pour l'integration d'un dispositif coupe-feu, procede de realisation d'un tel ensemble, et passe-cables coupe-feu

Publications (1)

Publication Number Publication Date
EP1685634A1 true EP1685634A1 (fr) 2006-08-02

Family

ID=34577311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04797655A Withdrawn EP1685634A1 (fr) 2003-11-07 2004-11-05 Dispositif coupe-feu, ensemble pour l'integration d'un dispositif coupe-feu, procede de realisation d'un tel ensemble, et passe-cables coupe-feu

Country Status (2)

Country Link
EP (1) EP1685634A1 (fr)
WO (1) WO2005046016A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006011374U1 (de) * 2006-07-25 2006-09-21 Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg Wanddurchführung zum Durchführen einer Leitung durch eine Gebäudewandung
DE102008049863A1 (de) * 2008-09-03 2010-03-04 Winkler Gmbh Wanddurchführung
GB0818679D0 (en) * 2008-10-11 2008-11-19 Mccann Jamie fire retardant structures
DE102017100277A1 (de) * 2017-01-09 2018-07-12 Wichmann Brandschutzsysteme Gmbh & Co. Kg Brandschutzvorrichtung
RU2719408C1 (ru) * 2019-11-04 2020-04-17 Общество С Ограниченной Ответственностью "Атоминопром" Проходка кабельная с огнестойким герметиком и монтажный набор
RU2717084C1 (ru) * 2019-11-04 2020-03-18 Общество С Ограниченной Ответственностью "Атоминопром" Проходка кабельная с минеральноватным наполнителем в коробе, или лотке, или тому подобном и монтажный набор
RU2717082C1 (ru) * 2019-11-04 2020-03-18 Общество С Ограниченной Ответственностью "Атоминопром" Проходка кабельная с минеральноватным наполнителем и монтажный набор

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4419535A (en) * 1981-07-31 1983-12-06 Hara Robert J O Multi-cable conduit for floors and walls
DE8904670U1 (fr) * 1988-08-01 1989-06-29 Studsvik Fireseal Ab, Nykoeping, Se

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Publication number Priority date Publication date Assignee Title
DE3943165A1 (de) * 1989-12-28 1991-07-04 Kuhn Gmbh Rolf Vorrichtung zum herstellen und wiederverschliessen von oeffnungen in elastischen baustoffen
DE19653963C2 (de) * 1996-10-28 1999-09-23 Reinhold Drosselmeyer Brandschutz-Kabelgehäuse
JP3683727B2 (ja) * 1998-04-17 2005-08-17 未来工業株式会社 貫通部閉鎖方法
JP4158868B2 (ja) * 1998-05-27 2008-10-01 株式会社古河テクノマテリアル 可燃性長尺物貫通部の防火処理部材
JP2001252367A (ja) * 2000-03-10 2001-09-18 Mirai Ind Co Ltd 防火区画貫通ダクト及びその使用方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4419535A (en) * 1981-07-31 1983-12-06 Hara Robert J O Multi-cable conduit for floors and walls
DE8904670U1 (fr) * 1988-08-01 1989-06-29 Studsvik Fireseal Ab, Nykoeping, Se

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005046016A1 *

Also Published As

Publication number Publication date
WO2005046016A1 (fr) 2005-05-19

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