WO1996023113A1 - Fire resistant covers for electrical fittings - Google Patents

Fire resistant covers for electrical fittings Download PDF

Info

Publication number
WO1996023113A1
WO1996023113A1 PCT/GB1995/002598 GB9502598W WO9623113A1 WO 1996023113 A1 WO1996023113 A1 WO 1996023113A1 GB 9502598 W GB9502598 W GB 9502598W WO 9623113 A1 WO9623113 A1 WO 9623113A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
intumescent material
fabric
intumescent
piece
Prior art date
Application number
PCT/GB1995/002598
Other languages
French (fr)
Inventor
Derek Alfred Ward
Original Assignee
Environmental Seals Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Environmental Seals Limited filed Critical Environmental Seals Limited
Priority to EP95936038A priority Critical patent/EP0805903B1/en
Priority to DK95936038T priority patent/DK0805903T3/en
Priority to AU38124/95A priority patent/AU3812495A/en
Priority to DE69508968T priority patent/DE69508968T2/en
Publication of WO1996023113A1 publication Critical patent/WO1996023113A1/en
Priority to GR990401733T priority patent/GR3030647T3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/006—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation with means for hanging lighting fixtures or other appliances to the framework of the ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling

Definitions

  • This invention relates to ventilated covers for electrical fittings and more especially but not exclusively to a ventilated cover for a recessed electrical fitting, such as a downlighter set in a plasterboard ceiling, which, in the event of a fire, isolates the fitting from the structure in which it is recessed to maintain the fire resistance thereof.
  • Light fittings recessed into ceilings are well known. Such light fittings are known as downlighters. The heat generated by such light fittings can be considerable and represents a fire hazard. Also the recess in which such a fitting is mounted can itself provide a path for fire and smoke to a room or area located above that ceiling.
  • the present invention sets out to provide a ventilated cover for an electrical fitting which eliminates, or at least alleviates, many of the disadvantages present in existing fire resistant covers.
  • a fire resistant cover for an electrical fitting to be recessed into a supporting structure, the cover comprising a fabric hood coated or impregnated with a liquid based intumescent material and including a top supported by one or more upstanding side walls, a piece of intumescent material secured to the top of the cover and including a plurality of apertures through one of which electrical wiring can pass to an electrical fitting protected by the cover, and means for connecting the cover to adjoining surfaces of the structure in which the electrical fitting is recessed.
  • the fabric is preferably a fibrous cloth (e.g. a glass fibre cloth) which is coated on one or each of its surfaces with liquid based intumescent material.
  • the layer of intumescent material may comprise a suitably shaped piece of card which overlies a similarly shaped piece of intumescent cloth.
  • the invention provides a fire resistant cover for a downlighter recessed into a suspended ceiling, the cover being produced from a fibrous cloth material coated or impregnated with a liquid based intumescent material and including, in the cover upper surface, apertures around which is provided intumescent material in cloth or sheet form.
  • Figure 1 is a perspective view of a cover in accordance with the invention.
  • Figure 2 is a plan view from above of the cover shown in Figure 1;
  • Figure 3 schematically illustrates a fixing for securing the cover to an adjoining ceiling structure
  • FIGS 4 and 5 are perspective and sectional views of an alternative cover in accordance with the invention.
  • the cover illustrated in Figures 1 and 2 is produced from a fibrous woven cloth (e.g. a glass fibre woven cloth) which has been coated on one or both of its sides with an intumescent paint or other intumescent medium.
  • the cloth is impregnated with intumescent medium.
  • the cover is generally circular in cross-section and comprises an upstanding side wall 1, a top 2 and floor pieces 3 which extend inwardly from the lower margin of the side wall. Wires 4 are sewn into the fabric of the side walls 1 to assist in holding the cover upright.
  • the side wall 1 is produced from a length of glass fibre cloth which is sewn together at the strip ends, the top 2 then being secured to the upper margin of the side wall again by sewing.
  • the floor pieces 3 are simply sewn to the lower margin of the side wall and are cut to enable the pieces 3 to lie flat on the adjoining surface of the suspended ceiling.
  • the outside diameter of the cover is 289mm and the height of the cover is typically 145mm.
  • the top of the cover has secured to it a circular piece of card 5 which overlies and is bonded to a similarly shaped piece of intumescent material to define an intumescent gasket.
  • This material typically comprises a fibrous sheet impregnated with an intumescent material such as carbon granules.
  • the gasket comprising the card and intumescent piece may simply be secured to the top of the cover by studs 6 or rivets.
  • the gasket is formed with a central opening 2 through which can pass electrical cabling for the light fitting and four ventilation apertures 8. Similar openings are formed in the top of the cover. Typically the outside diameter of the gasket is 60mm.
  • the opening through which the cover must pass is relatively small. Because of the flexibility of the fabric material from which the cover and the gasket is formed, the hood can simply be squashed or folded to form a narrow tube which can readily pass through even the smallest ceiling opening for location about the margin of the ceiling opening. Before doing so, the electric wire which carries current to the electrical fitting is passed through the central opening 7 formed in the top 2 of the cover. Once sited, the floor pieces 3 of the cover are secured to the upper surface of the ceiling plasterboard using fixing pins 9 such as illustrated in Figure 3. Other simple forms of fixings may be employed. The fixing pins 9 have the advantage that they can be secured in place using finger pressure.
  • Oownlighting can then simply be connected to a source of electricity via the appropriate wire and the opening formed in the plasterboard ceiling closed with a lens cover in the normal way.
  • the heat generated by downlighters recessed into ceilings can represent fire hazards.
  • the intumescent content of the cover and the card layer 5 quickly expands to isolate the fitting entirely from the surrounding structure thereby confining the fire and maintaining the fire resistance of the structure.
  • Covers in accordance with the invention have been subjected to fire testing with no failure of the integrity criterion at the end of four hours testing. Insulation failure occurred after 46 minutes.
  • the cover illustrated in Figures 4 and 5 differs from that described above by the presence of fixing straps 10 secured to the lower inner surface of the cover which can be deformed as shown in Figure 5 to locate around a sheet of plasterboard 11 (left hand construction of Figure 5) or around and between superimposed sheets of plasterboard 12 (right hand construction of Figure 5).
  • the floor pieces 3 are folded away from the cover interior and lie in contact with the upper surface of the ceiling plasterboard on which the cover is positioned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Insulating Bodies (AREA)
  • Casings For Electric Apparatus (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Building Environments (AREA)
  • Organic Insulating Materials (AREA)

Abstract

A fire resistant cover for an electrical fitting to be recessed into a supporting structure comprises a fabric hood coated or impregnated with a liquid based intumescent material and includes a top (2) supported by one or more upstanding side walls (1) and a plurality of fabric pieces (3) which extend inwardly from the lower margin of the or each side wall (1). The top (2) of the cover includes a layer (5) of intumescent material which is formed with a plurality of apertures through one of which electrical wiring to the fitting can pass. Complementary apertures are formed in the top of the cover, and means are provided for connecting the inwardly extending material pieces (3) to adjoining surfaces of the structure in which the electrical fitting is recessed.

Description

FIRE RESISTANT COVERS FOR ELECTRICAL FITTINGS
This invention relates to ventilated covers for electrical fittings and more especially but not exclusively to a ventilated cover for a recessed electrical fitting, such as a downlighter set in a plasterboard ceiling, which, in the event of a fire, isolates the fitting from the structure in which it is recessed to maintain the fire resistance thereof.
Light fittings recessed into ceilings are well known. Such light fittings are known as downlighters. The heat generated by such light fittings can be considerable and represents a fire hazard. Also the recess in which such a fitting is mounted can itself provide a path for fire and smoke to a room or area located above that ceiling.
For cosmetic reasons, the aperture which is cut into a plasterboard ceiling to receive a downlighter is kept to a minimum. This restricts the size of ventilated cover which can be employed, particularly where an existing downlighter is to be fire-proofed. Fire resistant covers for downlighters have previously been proposed but are generally too large to pass through a downlighter recess formed in an existing ceiling. Also, where this is possible, the covers rely upon fixings into the exposed surface of the plasterboard ceiling for securement purposes. This is aesthetically unappealing.
The present invention sets out to provide a ventilated cover for an electrical fitting which eliminates, or at least alleviates, many of the disadvantages present in existing fire resistant covers.
According to the present invention in one aspect, there is provided a fire resistant cover for an electrical fitting to be recessed into a supporting structure, the cover comprising a fabric hood coated or impregnated with a liquid based intumescent material and including a top supported by one or more upstanding side walls, a piece of intumescent material secured to the top of the cover and including a plurality of apertures through one of which electrical wiring can pass to an electrical fitting protected by the cover, and means for connecting the cover to adjoining surfaces of the structure in which the electrical fitting is recessed.
The fabric is preferably a fibrous cloth (e.g. a glass fibre cloth) which is coated on one or each of its surfaces with liquid based intumescent material. The layer of intumescent material may comprise a suitably shaped piece of card which overlies a similarly shaped piece of intumescent cloth.
In another aspect, the invention provides a fire resistant cover for a downlighter recessed into a suspended ceiling, the cover being produced from a fibrous cloth material coated or impregnated with a liquid based intumescent material and including, in the cover upper surface, apertures around which is provided intumescent material in cloth or sheet form.
The invention will now be described by way of example only with reference to the accompanying diagrammatic drawings in which:-
Figure 1 is a perspective view of a cover in accordance with the invention;
Figure 2 is a plan view from above of the cover shown in Figure 1;
Figure 3 schematically illustrates a fixing for securing the cover to an adjoining ceiling structure; and
Figures 4 and 5 are perspective and sectional views of an alternative cover in accordance with the invention.
The cover illustrated in Figures 1 and 2 is produced from a fibrous woven cloth (e.g. a glass fibre woven cloth) which has been coated on one or both of its sides with an intumescent paint or other intumescent medium. Preferably the cloth is impregnated with intumescent medium. The cover is generally circular in cross-section and comprises an upstanding side wall 1, a top 2 and floor pieces 3 which extend inwardly from the lower margin of the side wall. Wires 4 are sewn into the fabric of the side walls 1 to assist in holding the cover upright.
Typically the side wall 1 is produced from a length of glass fibre cloth which is sewn together at the strip ends, the top 2 then being secured to the upper margin of the side wall again by sewing. The floor pieces 3 are simply sewn to the lower margin of the side wall and are cut to enable the pieces 3 to lie flat on the adjoining surface of the suspended ceiling.
Typically the outside diameter of the cover is 289mm and the height of the cover is typically 145mm.
The top of the cover has secured to it a circular piece of card 5 which overlies and is bonded to a similarly shaped piece of intumescent material to define an intumescent gasket. This material typically comprises a fibrous sheet impregnated with an intumescent material such as carbon granules. The gasket comprising the card and intumescent piece may simply be secured to the top of the cover by studs 6 or rivets. The gasket is formed with a central opening 2 through which can pass electrical cabling for the light fitting and four ventilation apertures 8. Similar openings are formed in the top of the cover. Typically the outside diameter of the gasket is 60mm.
As will be appreciated, the opening through which the cover must pass is relatively small. Because of the flexibility of the fabric material from which the cover and the gasket is formed, the hood can simply be squashed or folded to form a narrow tube which can readily pass through even the smallest ceiling opening for location about the margin of the ceiling opening. Before doing so, the electric wire which carries current to the electrical fitting is passed through the central opening 7 formed in the top 2 of the cover. Once sited, the floor pieces 3 of the cover are secured to the upper surface of the ceiling plasterboard using fixing pins 9 such as illustrated in Figure 3. Other simple forms of fixings may be employed. The fixing pins 9 have the advantage that they can be secured in place using finger pressure. Oownlighting can then simply be connected to a source of electricity via the appropriate wire and the opening formed in the plasterboard ceiling closed with a lens cover in the normal way. In use, the heat generated by downlighters recessed into ceilings can represent fire hazards. In the event of such a fire, the intumescent content of the cover and the card layer 5 quickly expands to isolate the fitting entirely from the surrounding structure thereby confining the fire and maintaining the fire resistance of the structure. Covers in accordance with the invention have been subjected to fire testing with no failure of the integrity criterion at the end of four hours testing. Insulation failure occurred after 46 minutes.
The cover illustrated in Figures 4 and 5 differs from that described above by the presence of fixing straps 10 secured to the lower inner surface of the cover which can be deformed as shown in Figure 5 to locate around a sheet of plasterboard 11 (left hand construction of Figure 5) or around and between superimposed sheets of plasterboard 12 (right hand construction of Figure 5). In this embodiment, the floor pieces 3 are folded away from the cover interior and lie in contact with the upper surface of the ceiling plasterboard on which the cover is positioned.
It will be appreciated that the foregoing is merely exemplary of fire resistant covers in accordance with the invention and that modifications can readily by made thereto without departing from the true scope of the invention as set out in the appended claims.

Claims

CLAIMS :
1. A fire resistant cover for an electrical fitting to be recessed into a supporting structure, the cover comprising a fabric hood coated or impregnated with a liquid based intumescent material and including a top supported by one or more upstanding side walls, a piece of intumescent material secured to the top of the cover and including a plurality of apertures through one of which electrical wiring can pass to an electrical fitting protected by the cover, and means for connecting the cover to adjoining surfaces of the structure in which the electrical fitting is recessed.
2. A cover as claimed in claim 1 further comprising a plurality of fabric pieces secured to the lower margin(s) of the side wall(s) of the cover.
3. A cover as claimed in claim 2 wherein the fabric pieces extend inwardly from the lower margin(s) of the side wall(s), the connecting means co-operating with the fabric pieces to secure the cover to the adjoining surfaces of the structure.
4. A cover as claimed in claim 1 or claim 2 wherein the connecting means comprises at least one fixing strap secured to the interior of the side wall(s) of the hood and deformable around an edge of the supporting structure to connect the hood to the supporting structure.
5. A cover as claimed in any one of claims 1 to 4 wherein the top of the cover extends below the piece of intumescent material and includes apertures complementary to those of the piece of intumescent material.
6. A cover as claimed in any one of claims 1 to 5 wherein the piece of intumescent material comprises a sheet of card which overlies a similarly shaped layer of intumescent material.
7. A cover as claimed in claim 6 wherein the intumescent layer comprises a fibrous sheet impregnated with carbon granules.
8. A cover as claimed in any one of the preceding claims wherein the cover top includes a plurality of ventilation apertures.
9. A cover as claimed in any one of claims 1 to 8 wherein the fabric is a fibrous cloth.
10. A cover as claimed in claim 9 wherein the fabric is a glass fibre cloth coated on one or each of its surfaces with liquid based intumescent material.
11. A cover as claimed in any one of the preceding claims wherein the layer of intumescent material comprises a suitably shaped piece of card which overlies a similarly shaped piece of intumescent cloth.
12. A fire resistant cover for a downlighter recessed into a suspended ceiling, the cover being produced from a fibrous cloth material coated or impregnated with a liquid based intumescent material and including, in the cover upper surface, apertures around which is provided intumescent material in cloth or sheet form.
13. A fire resistant cover substantially as herein described and as described with reference to Figures 1 to 3 or Figures 4 and 5 of the accompanying diagrammatic drawings.
PCT/GB1995/002598 1995-01-25 1995-11-06 Fire resistant covers for electrical fittings WO1996023113A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP95936038A EP0805903B1 (en) 1995-01-25 1995-11-06 Fire resistant covers for electrical fittings
DK95936038T DK0805903T3 (en) 1995-01-25 1995-11-06 Fire resistant covers for electric luminaires
AU38124/95A AU3812495A (en) 1995-01-25 1995-11-06 Fire resistant covers for electrical fittings
DE69508968T DE69508968T2 (en) 1995-01-25 1995-11-06 FIRE RESISTANT COVERS FOR ELECTRICAL EQUIPMENT
GR990401733T GR3030647T3 (en) 1995-01-25 1999-06-30 Fire resistant covers for electrical fittings

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9501391.8A GB9501391D0 (en) 1995-01-25 1995-01-25 Ventilated covers for electrical fittings
GB9501391.8 1995-01-25

Publications (1)

Publication Number Publication Date
WO1996023113A1 true WO1996023113A1 (en) 1996-08-01

Family

ID=10768500

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1995/002598 WO1996023113A1 (en) 1995-01-25 1995-11-06 Fire resistant covers for electrical fittings

Country Status (10)

Country Link
EP (1) EP0805903B1 (en)
AT (1) ATE178678T1 (en)
AU (1) AU3812495A (en)
DE (1) DE69508968T2 (en)
DK (1) DK0805903T3 (en)
ES (1) ES2132730T3 (en)
GB (2) GB9501391D0 (en)
GR (1) GR3030647T3 (en)
WO (1) WO1996023113A1 (en)
ZA (1) ZA959774B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007110662A1 (en) * 2006-03-27 2007-10-04 Magenta Group International Corporation Fitting protector

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998012472A1 (en) * 1996-09-20 1998-03-26 Peter Charles Jones Installation of lighting or other fittings in ceilings
GB9710921D0 (en) * 1997-05-29 1997-07-23 Euro Passive Fire Protection L Ventilated covers for electrical fittings
GB2326467A (en) * 1997-05-29 1998-12-23 Environmental Seals Ltd Downlighter with integral fire-resistant hood
EP0995064B1 (en) 1997-07-08 2002-03-27 Euro Passive Fire Protection Limited Ventilated covers for electrical fittings
EP0909919A3 (en) * 1997-10-14 2000-03-22 Carboline Europe Limited Downlighter cover
GB2345125B (en) * 1998-12-23 2002-05-01 Tenmat Ltd Intumescent downlighter cover and method of manufacturing same
GB2348603B (en) * 1999-03-23 2002-02-13 Uri Friedlander Fire barrier for electrical fittings
GB0130869D0 (en) * 2001-12-21 2002-02-06 Environmental Seals Ltd Covers for electrical fittings
GB0130519D0 (en) 2001-12-21 2002-02-06 Environmental Seals Ltd Covers for electrical fittings
DE10216373A1 (en) * 2002-04-12 2003-10-30 Gessler Accumulatorentechnik G Fireproof safety lamp installation for use in tunnel, has metal housing surrounding gas- or vapor-discharge lamp and starter circuit and lined with panels of gypsum and fireproof fibrous material
US20050229510A1 (en) * 2002-05-11 2005-10-20 Tsang Michael M Fitting protector
DE10223904A1 (en) * 2002-05-29 2003-12-11 Kaiser Gmbh & Co Kg Suspended ceiling for fire protection purposes
GB2403235B (en) * 2002-07-20 2005-06-08 Laurence Keith Kovacs A mounting arrangement
AU2002950939A0 (en) * 2002-08-22 2002-09-12 Ian Thomas Craig Downlight protector housing
AU2005201631B2 (en) * 2004-04-20 2006-07-06 Wolfgang Trumpelmann Down light cover to guard against dust, insulation and combustible material
DE602005016922D1 (en) * 2004-06-09 2009-11-12 Liangju Wu BUILT-IN LIGHT FOR FIRE PREVENTION
CN100529526C (en) * 2004-06-09 2009-08-19 武良举 Inserted fire-proof lamp
GB0413655D0 (en) * 2004-06-18 2004-07-21 Scolmore Int Ltd Heat resistant casing
CN100483023C (en) * 2004-08-20 2009-04-29 武良举 Embedded lamp
GB2418784A (en) * 2004-10-01 2006-04-05 Environmental Seals Ltd A fire resistant cover for an electrical conduit or socket.
GB2422191B (en) * 2005-01-27 2007-01-10 Rd Europe Ltd Fire-resistant lighting fitting
GB2421070B (en) * 2005-01-27 2007-01-10 Rd Europe Ltd Fire-resistant cover for lighting fitting
US8127800B2 (en) 2005-02-28 2012-03-06 Parker-Hannifin Corporation Fire protective hose assembly
CN1676178B (en) * 2005-04-13 2010-04-28 韦洪贞 Fire-proof mask and special expansion material of its radiating fin
GB2426300B (en) * 2005-05-18 2010-03-10 Environmental Seals Ltd Improvements in and relating to intumescent gaskets
GB0510494D0 (en) 2005-05-23 2005-06-29 Aurora Ltd Improvements to fire related downlights
GB2429052B (en) * 2005-08-08 2010-09-22 Laurence Kovacs Lighting assemblies
GB0523777D0 (en) 2005-11-23 2006-01-04 Environmental Seals Ltd Improved fixing mechanism for covers for electrical light fittings
FR2895489B1 (en) * 2005-12-27 2008-05-30 Jerome Martin SAFETY DEVICE FOR CEILINGS AND FALSE CEILINGS
GB2463533A (en) 2008-09-22 2010-03-24 Intumescent Systems Ltd Fire resistant cover for downlight.
GB0900420D0 (en) * 2009-01-12 2009-02-11 Scolmore Int Ltd Heat resistant casing
US8713944B2 (en) 2010-09-23 2014-05-06 Delavan Inc. High temperature manifolds for gas turbine engines
GB2551335A (en) * 2016-06-13 2017-12-20 Levco Ltd Improvements in or relating to organic material
GB2582544B (en) * 2019-03-14 2022-03-30 Hoody Speaker Hoods Ltd Covers for electrical appliances
WO2021055450A1 (en) * 2019-09-16 2021-03-25 Hubbell Incorporated Fire rated canless recessed luminaire

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210070A (en) * 1978-03-06 1980-07-01 Dayus Barry R Ceiling fixture with thermal protection
GB2235710A (en) * 1989-09-05 1991-03-13 Environmental Seals Ltd Fire barrier for light fittings in suspended ceilings
GB2270936A (en) * 1992-09-29 1994-03-30 Arthur Peter Hamilton Fire stop covering device, e.g. for ceiling aperture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210070A (en) * 1978-03-06 1980-07-01 Dayus Barry R Ceiling fixture with thermal protection
GB2235710A (en) * 1989-09-05 1991-03-13 Environmental Seals Ltd Fire barrier for light fittings in suspended ceilings
GB2270936A (en) * 1992-09-29 1994-03-30 Arthur Peter Hamilton Fire stop covering device, e.g. for ceiling aperture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007110662A1 (en) * 2006-03-27 2007-10-04 Magenta Group International Corporation Fitting protector

Also Published As

Publication number Publication date
AU3812495A (en) 1996-08-14
EP0805903B1 (en) 1999-04-07
DK0805903T3 (en) 1999-10-25
ATE178678T1 (en) 1999-04-15
ZA959774B (en) 1996-05-29
GB9526310D0 (en) 1996-02-21
GR3030647T3 (en) 1999-10-29
DE69508968T2 (en) 1999-12-09
DE69508968D1 (en) 1999-05-12
GB9501391D0 (en) 1995-03-15
ES2132730T3 (en) 1999-08-16
GB2297609A (en) 1996-08-07
GB2297609B (en) 1998-02-18
EP0805903A1 (en) 1997-11-12

Similar Documents

Publication Publication Date Title
EP0805903B1 (en) Fire resistant covers for electrical fittings
US4038799A (en) Joiner bulkhead method and apparatus
US2697163A (en) Mounting means for ceiling fans
EP0983471B1 (en) Electric light fittings
EP0995064B1 (en) Ventilated covers for electrical fittings
US6536169B2 (en) Adjustable rack for supporting firestop material in a through-penetration
US3418766A (en) Suspended ceiling system
US6293056B1 (en) Multi-purpose above-ceiling utility support system
GB2582544A (en) Covers for electrical appliances
EP1459008B1 (en) Covers for electrical fittings
GB2348603A (en) Fire barrier or cover for electrical fittings
JP2009509252A (en) Alarm device and housing for alarm device
GB2235710A (en) Fire barrier for light fittings in suspended ceilings
JP2008092666A (en) Wiring duct and method for manufacturing wiring duct
KR20080018121A (en) Vents for temporary shelters and coverings
WO2008026005A1 (en) A fire-rated lighting assembly and corresponding method of assembly
CN109780638B (en) Communication board base, communication board and air condensing units
KR102641476B1 (en) Electric shock prevention distribution box for connecting underground power distribution lines
JP3472388B2 (en) Flameproof sheet
WO2000074190A1 (en) Decorative frame
EP3736929A1 (en) Cable trays
KR102506376B1 (en) Flame retardant hook band and manufacturing method thereof
JPH038794Y2 (en)
GB2388382A (en) Protector device for fittings which extend into a ceiling aperture
EP1476695A1 (en) Covers for electric fittings

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AM AT AU BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TT UA UG US UZ VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1995936038

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1995936038

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWG Wipo information: grant in national office

Ref document number: 1995936038

Country of ref document: EP