EP1607675A1 - Heat resistant casing - Google Patents
Heat resistant casing Download PDFInfo
- Publication number
- EP1607675A1 EP1607675A1 EP04257764A EP04257764A EP1607675A1 EP 1607675 A1 EP1607675 A1 EP 1607675A1 EP 04257764 A EP04257764 A EP 04257764A EP 04257764 A EP04257764 A EP 04257764A EP 1607675 A1 EP1607675 A1 EP 1607675A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- intumescent material
- fire
- heat resistant
- resistant
- 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- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 34
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 23
- 239000007787 solid Substances 0.000 claims abstract description 19
- 238000010276 construction Methods 0.000 claims description 2
- 239000003779 heat-resistant material Substances 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Images
Classifications
-
- 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
- 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
-
- 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
-
- 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
- F21V25/12—Flameproof or explosion-proof arrangements
Definitions
- This invention relates to a new fire resistant casing for use with electrical fittings, particularly for use with lamp holders.
- New building regulations require down-lighters fitted into ceilings to be provided with fire hoods to prevent or at least minimise the spread of fire.
- Various types of fire hood have been proposed which include a fire resistant intumescent material that upon excessive heating (e.g. in the event of a fire) expand to many times their original volume, thus forming a fire barrier to minimise or prevent fire spread.
- These hoods have been quite successful, but the aim is still to increase the efficiency of the built-in ventilation and fire/heat protection, whilst providing a cost effective and easy to install option.
- An object of the present invention is to provide a new heat resistant casing (fire hood) which can be supplied already fitted with a lamp holder or other electrical fitting and which in use is efficient at minimising heat build up and also in preventing or minimising fire spread, should that occur.
- a heat-resistant casing for an electrical fitting in which the casing comprises a housing of heat resistant material comprising a top supporting one or more side-walls, the top is provided with at least one aperture, the housing encloses an electrical fitting which is attached to the housing by an attachment means, and within the housing is a first solid fire-resistant intumescent material positioned between the interior surface of the top and the electrical fitting, characterised in that the first solid fire-resistant intumescent material is provided with at least one aperture and is spaced apart from the interior surface of the top, and the housing is further provided with a collar of a second solid fire-resistant intumescent material which extends substantially completely around the exterior surface of the side wall or walls.
- the housing is preferably of substantially circular cross-section and is preferably of self-supporting substantially rigid construction and of metal or plastic.
- the top preferably has a plurality of apertures for ventilation (heat dissipation), passage of electrical cables and attachment means for the first fire resistant intumescent material.
- the 'free edge' of the side wall i.e. the side wall remote from the top, preferably has an outwardly extending lip. This lip may be used for attachment of a cover for the electrical fitting. Where the electrical fitting is a lamp holder, a cover in the form of a decorative ring can be attached to the lip.
- the casing is particularly applicable for recessing into a support structure such as a ceiling or wall, especially when the support structure is being constructed.
- the intumescent material may be based on graphite or other intumesecent materials which upon exposure to extreme heat expand in volume.
- An example of a graphite based material is that supplied by Technical Fibre Products Limited as 'Intumescent Material' and consists of a high temperature Rockwool fibre mat containing easily dispersed foliating graphite bonded in acrylic.
- the first and second intumescent materials may be of the same composition or different.
- the first intumescent material is provided with a plurality of apertures.
- the apertures are for passage of electrical cables and/or for ventilation to dissipate heat that tends to build up in the casing when the electrical fitting is switched on.
- a plate is provided to support the first intumescent material, in which case the plate is usually provided with apertures, at least some of which coincide with those of the first intumescent material.
- the apertures are conveniently circular holes punched through with a suitable tool.
- the plate is preferably sized to fit snugly within the casing and may then be attached to the interior surface of the top by means of e.g. nuts and bolts. The nuts also serve to maintain the necessary space between the interior surface of the top and the first intumescent material supported on the plate.
- the gap between the interior surface of the top and the first intumescent material is in the range 2 to 8 mm, more preferably 2 to 5mm.
- the electrical fitting is preferably positioned within the housing so that it does not touch the internal surface of the side wall or walls.
- a heat resistant casing 10 comprises a cylindrical pressed steel housing consisting of a top 11 supporting a side wall 12.
- the side wall 12 has a lip 13 onto which is clipped a cover 14 by means of spring clips 14a & 14b.
- a collar 15 of solid fire resistant intumescent material surrounds the lower edge of the side wall 12.
- the collar 15 is 25mm high and 12mm thick and is glued in place.
- Within the housing is a steel plate 16 supporting a 12mm thick layer of solid fire resistant intumescent material 17. Plate 16 and layer 17 have corresponding apertures.
- the gap 16A between the top 11 and layer 17 is chosen to be in the range 2 to 5mm.
- the plate 16 is held in place by nuts and bolts 18, which also keep the gap 16A consistent.
- a pressed steel lamp holder 19 is attached to plate 16 by means of nuts and bolts 20.
- An aluminium lamp 21 fits into the lamp holder 19.
- seven apertures are apparent in top 11.
- electrical cabling 22 to 24 passes, into two apertures are fitted fixing nuts and bolts for the terminal housing 25, one aperture 26 is open for ventilation, and one aperture 27 is occupied by a nut and bolt connected to the plate 16 inside the casing.
- FIG. 3 cables 22 and 23 are shown, together with ventilation apertures 28,29.
- FIG 4 cables 22 & 23 are shown through plate 16, plus four ventilation apertures e.g. 30.
- Figure 5 is a schematic representation showing i.a. more clearly how the down-lighter cover 14 clips into place.
- the apertures in the top 11, solid fire resistant intumescent material 17 and plate 16 act to ventilate the casing and dissipate heat.
- the solid fire resistant intumescent material 17 expands to 9 times its volume, filling the gap between the top 11 and plate 16 and the aforementioned apertures including those through which the cabling passes. This expansion helps to prevent the fire from spreading e.g.
- the collar 15 of solid fire resistant intumescent material expands to nine times its volume, filling the space between the housing and the surrounding structure e.g. the ceiling. This expansion helps to prevent the fire from spreading.
Landscapes
- General Engineering & Computer Science (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Insulated Conductors (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Building Environments (AREA)
- Glass Compositions (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Ceramic Products (AREA)
- Installation Of Indoor Wiring (AREA)
- Finishing Walls (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
A casing 10 (fire hood) for an electrical fitting comprises a top 11 of heat
resistant material provided with at least one aperture and supporting a sidewall
12.The housing encloses an electrical fitting 19 attached to the housing
by attachment means, and within the housing is a first solid fire-resistant
intumescent material 17 positioned between the interior surface of the top 11
and electrical fitting 19. Intumescent material 17 is provided with at least one
aperture and is spaced from the interior surface of top 11. The housing is
further provided with a collar of a second solid fire-resistant intumescent
material 15 extending around the exterior surface of side wall 12. In the event
of fire or significant temperature increase, intumescent material 17 and 15
expand to around nine times their original volume, filling the gap 16A between
the top 11 and plate 16, together with the apertures in the top 11, and the
space between the housing and the surrounding structure e.g. a ceiling or
wall. These expansions help to prevent a fire from spreading.
Description
- This invention relates to a new fire resistant casing for use with electrical fittings, particularly for use with lamp holders.
New building regulations require down-lighters fitted into ceilings to be provided with fire hoods to prevent or at least minimise the spread of fire. Various types of fire hood have been proposed which include a fire resistant intumescent material that upon excessive heating (e.g. in the event of a fire) expand to many times their original volume, thus forming a fire barrier to minimise or prevent fire spread. These hoods have been quite successful, but the aim is still to increase the efficiency of the built-in ventilation and fire/heat protection, whilst providing a cost effective and easy to install option. An object of the present invention is to provide a new heat resistant casing (fire hood) which can be supplied already fitted with a lamp holder or other electrical fitting and which in use is efficient at minimising heat build up and also in preventing or minimising fire spread, should that occur. - According to one aspect of the present invention, there is provided a heat-resistant casing for an electrical fitting in which the casing comprises a housing of heat resistant material comprising a top supporting one or more side-walls, the top is provided with at least one aperture, the housing encloses an electrical fitting which is attached to the housing by an attachment means, and within the housing is a first solid fire-resistant intumescent material positioned between the interior surface of the top and the electrical fitting, characterised in that the first solid fire-resistant intumescent material is provided with at least one aperture and is spaced apart from the interior surface of the top, and the housing is further provided with a collar of a second solid fire-resistant intumescent material which extends substantially completely around the exterior surface of the side wall or walls.
- The housing is preferably of substantially circular cross-section and is preferably of self-supporting substantially rigid construction and of metal or plastic. The top preferably has a plurality of apertures for ventilation (heat dissipation), passage of electrical cables and attachment means for the first fire resistant intumescent material. The 'free edge' of the side wall, i.e. the side wall remote from the top, preferably has an outwardly extending lip. This lip may be used for attachment of a cover for the electrical fitting. Where the electrical fitting is a lamp holder, a cover in the form of a decorative ring can be attached to the lip. The casing is particularly applicable for recessing into a support structure such as a ceiling or wall, especially when the support structure is being constructed.
The intumescent material may be based on graphite or other intumesecent materials which upon exposure to extreme heat expand in volume. An example of a graphite based material is that supplied by Technical Fibre Products Limited as 'Intumescent Material' and consists of a high temperature Rockwool fibre mat containing easily dispersed foliating graphite bonded in acrylic. The first and second intumescent materials may be of the same composition or different. - Preferably the first intumescent material is provided with a plurality of apertures. The apertures are for passage of electrical cables and/or for ventilation to dissipate heat that tends to build up in the casing when the electrical fitting is switched on. Preferably a plate is provided to support the first intumescent material, in which case the plate is usually provided with apertures, at least some of which coincide with those of the first intumescent material. The apertures are conveniently circular holes punched through with a suitable tool. The plate is preferably sized to fit snugly within the casing and may then be attached to the interior surface of the top by means of e.g. nuts and bolts. The nuts also serve to maintain the necessary space between the interior surface of the top and the first intumescent material supported on the plate. Preferably the gap between the interior surface of the top and the first intumescent material is in the range 2 to 8 mm, more preferably 2 to 5mm.
- Where a plate is provided, this may conveniently be used for attachment of the electrical fitting e.g. by means of nuts and bolts. The electrical fitting is preferably positioned within the housing so that it does not touch the internal surface of the side wall or walls.
- It will be appreciated that certain features of the invention which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features of the invention, which are for brevity described in the context of a single embodiment, may also be provided separately or in any suitable combination.
- Embodiments of the present invention will now be described with reference to the accompanying drawings in which:
- Figure 1 is a schematic view, partly in section, of a casing according to the present invention;
- Figure 2 is a perspective top view of the casing of Figure 1, also showing connections of the electrical cable to a terminal housing.
- Figure 3 is a perspective top view of the first solid fire-resistant material used in Figure 1, attached to its backing plate and threaded through with electrical cables.
- Figure 4 is a bottom view of the first solid fire-resistant material and attached backing plate of Figure 3 in position in the casing.
- Figure 5 is a schematic side view, partly in section, of the casing of Figure 1.
-
- Referring now to Figure 1 a heat
resistant casing 10 comprises a cylindrical pressed steel housing consisting of atop 11 supporting aside wall 12. Theside wall 12 has alip 13 onto which is clipped acover 14 by means ofspring clips 14a & 14b. Acollar 15 of solid fire resistant intumescent material surrounds the lower edge of theside wall 12. Thecollar 15 is 25mm high and 12mm thick and is glued in place. Within the housing is asteel plate 16 supporting a 12mm thick layer of solid fire resistantintumescent material 17.Plate 16 andlayer 17 have corresponding apertures. Thegap 16A between thetop 11 andlayer 17 is chosen to be in the range 2 to 5mm. Theplate 16 is held in place by nuts andbolts 18, which also keep thegap 16A consistent. A pressedsteel lamp holder 19 is attached toplate 16 by means of nuts andbolts 20. Analuminium lamp 21 fits into thelamp holder 19.
Referring to Figure 2, seven apertures are apparent intop 11. Through three apertureselectrical cabling 22 to 24 passes, into two apertures are fitted fixing nuts and bolts for theterminal housing 25, oneaperture 26 is open for ventilation, and oneaperture 27 is occupied by a nut and bolt connected to theplate 16 inside the casing. - Referring to Figure 3,
cables ventilation apertures
Referring to Figure 4,cables 22 & 23 are shown throughplate 16, plus four ventilation apertures e.g. 30.
Figure 5 is a schematic representation showing i.a. more clearly how the down-lighter cover 14 clips into place.
In operation, the apertures in thetop 11, solid fire resistantintumescent material 17 andplate 16 act to ventilate the casing and dissipate heat.
In the event of a fire, the solid fire resistantintumescent material 17 expands to 9 times its volume, filling the gap between thetop 11 andplate 16 and the aforementioned apertures including those through which the cabling passes.
This expansion helps to prevent the fire from spreading e.g. to an upper floor when the housing is recessed into a ceiling. Also, thecollar 15 of solid fire resistant intumescent material expands to nine times its volume, filling the space between the housing and the surrounding structure e.g. the ceiling.
This expansion helps to prevent the fire from spreading.
Claims (11)
- A heat resistant casing for an electrical fitting in which the casing comprises a housing of fire resistant material comprising a top supporting one or more side-walls, the top is provided with at least one aperture, the housing encloses an electrical fitting which is attached to the housing by an attachment means, and within the housing is a first solid fire-resistant intumescent material positioned between the interior surface of the top and the electrical fitting, characterised in that the first solid fire-resistant intumescent material is provided with at least one aperture and is spaced apart from the interior surface of the top, and the housing is further provided with a collar of a second solid fire-resistant intumescent material which extends substantially completely around the exterior surface of the side wall or walls.
- A heat resistant casing according to Claim 1 characterised in that the housing is of a self-supporting substantially rigid construction.
- A heat resistant casing according to Claim 1 or 2 characterised in that the collar is adjacent the edge of the side wall remote from the top.
- A heat resistant casing according to any preceding claim characterised in that the first solid fire-resistant intumescent material is provided with a plurality of apertures.
- A heat resistant casing according to any preceding claim characterised in that the housing is further provided with a plate which supports the first solid fire-resistant intumescent material.
- A heat resistant casing according to any preceding claim characterised in that the first solid fire-resistant intumescent material is spaced apart from the internal surface of the top by a gap of from 2 to 8mm.
- A heat resistant casing according to Claim 6 characterised in that the gap is from 2 to 5mm.
- A heat resistant casing according to Claim 5 characterised in that the plate is provided with at least one aperture.
- A heat resistant casing according Claim 8 characterised in that at least one aperture in the plate coincides with at least one aperture in the first solid fire-resistant intumescent material.
- A heat resistant casing according to any one of claims 5 to 9 characterised in that the electrical fitting is attached to the plate.
- A heat resistant casing according to any preceding claim characterised in that the electrical fitting is spaced from the internal surface of the side wall or walls.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0413655.2A GB0413655D0 (en) | 2004-06-18 | 2004-06-18 | Heat resistant casing |
GB0413655 | 2004-06-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1607675A1 true EP1607675A1 (en) | 2005-12-21 |
Family
ID=32750154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04257764A Withdrawn EP1607675A1 (en) | 2004-06-18 | 2004-12-14 | Heat resistant casing |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1607675A1 (en) |
CN (2) | CN1710326A (en) |
AT (1) | ATE465371T1 (en) |
DE (1) | DE602005020778D1 (en) |
DK (1) | DK1756472T3 (en) |
GB (2) | GB0413655D0 (en) |
HK (1) | HK1107137A1 (en) |
NZ (1) | NZ551296A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1686315A1 (en) | 2005-01-27 | 2006-08-02 | RD Europe Limited | Fire-resistant cover for lighting fitting |
EP2228591A1 (en) * | 2007-12-11 | 2010-09-15 | Liangju Wu | Embedded type lamp with heat radiating device |
EP2778509A1 (en) * | 2011-10-26 | 2014-09-17 | Liangju Wu | Fireproof led lighting |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2422191B (en) * | 2005-01-27 | 2007-01-10 | Rd Europe Ltd | Fire-resistant lighting fitting |
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 |
CN200958737Y (en) * | 2006-09-22 | 2007-10-10 | 武良举 | Fireproof cylindrical light |
US8029345B2 (en) * | 2006-09-29 | 2011-10-04 | Unico, Inc. | Fire stop outlet for small duct, high velocity air distribution systems |
US7670033B2 (en) * | 2007-01-11 | 2010-03-02 | Tenmat Ltd. | Fire stop for light fixture |
GB0710328D0 (en) | 2007-05-30 | 2007-07-11 | Intram Bramwell Ltd | Casing |
WO2009006786A1 (en) * | 2007-07-05 | 2009-01-15 | Liangju Wu | A fireproof lamp |
GB2453950A (en) * | 2007-10-23 | 2009-04-29 | Emcogroup Ltd | Fire damper |
GB2459538B (en) * | 2008-05-01 | 2011-07-20 | Photonstar Led Ltd | Fire rated luminaire |
CN202118720U (en) * | 2011-05-19 | 2012-01-18 | 武良举 | Embedded fireproof ceiling lamp |
US20150087174A1 (en) * | 2013-09-25 | 2015-03-26 | Osram Sylvania Inc. | Mountable connector box for electrical device |
GB2515649B (en) * | 2014-06-09 | 2015-10-14 | Kosnic Lighting Ltd | Fire resistant downlight |
US9512994B2 (en) | 2015-02-16 | 2016-12-06 | Elite Lighting | Fire rated recessed lighting assembly |
US9752765B2 (en) | 2015-02-16 | 2017-09-05 | Elite Lighting | Fire rated recessed lighting assembly |
USD791395S1 (en) | 2015-04-03 | 2017-07-04 | Elite Lighting | Disc insert for a lighting assembly |
USD785852S1 (en) | 2015-04-03 | 2017-05-02 | Elite Lighting | Adapter for a fire rated lighting assembly |
USD810997S1 (en) | 2015-04-07 | 2018-02-20 | Elite Lighting | Ring for recessed lighting |
USD799935S1 (en) | 2015-04-09 | 2017-10-17 | Elite Lighting | Disc |
USD791394S1 (en) | 2015-11-06 | 2017-07-04 | Elite Lighting | Disc insert for a lighting assembly |
GB2552937B (en) * | 2016-08-08 | 2018-11-14 | All Led Ltd | Downlight assembly |
WO2021055450A1 (en) * | 2019-09-16 | 2021-03-25 | Hubbell Incorporated | Fire rated canless recessed luminaire |
Citations (3)
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 |
GB2325728A (en) * | 1997-05-29 | 1998-12-02 | Euro Passive Fire Protection L | Fire-resistant, ventilated covers for electrical fittings |
GB2326467A (en) * | 1997-05-29 | 1998-12-23 | Environmental Seals Ltd | Downlighter with integral fire-resistant hood |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9220478D0 (en) * | 1992-09-29 | 1992-11-11 | Hamilton Arthur P | Fire stop covering device for aperture in fire resistant structure |
GB9501391D0 (en) * | 1995-01-25 | 1995-03-15 | Environmental Seals Ltd | Ventilated covers for electrical fittings |
US6105334A (en) * | 1997-09-16 | 2000-08-22 | Logic Construction Systems, L.L.C. | Fire resistant lighting enclosure |
GB2345125B (en) * | 1998-12-23 | 2002-05-01 | Tenmat Ltd | Intumescent downlighter cover and method of manufacturing same |
GB2403235B (en) * | 2002-07-20 | 2005-06-08 | Laurence Keith Kovacs | A mounting arrangement |
-
2004
- 2004-06-18 GB GBGB0413655.2A patent/GB0413655D0/en not_active Ceased
- 2004-12-14 EP EP04257764A patent/EP1607675A1/en not_active Withdrawn
-
2005
- 2005-03-02 GB GB0504267A patent/GB2415245B/en active Active
- 2005-03-07 CN CN200510052654.XA patent/CN1710326A/en active Pending
- 2005-05-17 NZ NZ551296A patent/NZ551296A/en not_active IP Right Cessation
- 2005-05-17 AT AT05744670T patent/ATE465371T1/en not_active IP Right Cessation
- 2005-05-17 DE DE602005020778T patent/DE602005020778D1/en active Active
- 2005-05-17 CN CN200580019996.XA patent/CN100529513C/en active Active
- 2005-05-17 DK DK05744670.0T patent/DK1756472T3/en active
-
2007
- 2007-11-16 HK HK07112559.1A patent/HK1107137A1/en not_active IP Right Cessation
Patent Citations (3)
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 |
GB2325728A (en) * | 1997-05-29 | 1998-12-02 | Euro Passive Fire Protection L | Fire-resistant, ventilated covers for electrical fittings |
GB2326467A (en) * | 1997-05-29 | 1998-12-23 | Environmental Seals Ltd | Downlighter with integral fire-resistant hood |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1686315A1 (en) | 2005-01-27 | 2006-08-02 | RD Europe Limited | Fire-resistant cover for lighting fitting |
EP1686315B1 (en) * | 2005-01-27 | 2007-08-22 | RD Europe Limited | Fire-resistant cover for lighting fitting |
EP2228591A1 (en) * | 2007-12-11 | 2010-09-15 | Liangju Wu | Embedded type lamp with heat radiating device |
EP2228591A4 (en) * | 2007-12-11 | 2011-11-16 | Liangju Wu | Embedded type lamp with heat radiating device |
EP2778509A1 (en) * | 2011-10-26 | 2014-09-17 | Liangju Wu | Fireproof led lighting |
EP2778509A4 (en) * | 2011-10-26 | 2015-04-22 | Liangju Wu | Fireproof led lighting |
Also Published As
Publication number | Publication date |
---|---|
CN1969146A (en) | 2007-05-23 |
ATE465371T1 (en) | 2010-05-15 |
CN1710326A (en) | 2005-12-21 |
CN100529513C (en) | 2009-08-19 |
DE602005020778D1 (en) | 2010-06-02 |
GB0504267D0 (en) | 2005-04-06 |
GB2415245B (en) | 2007-03-28 |
GB2415245A (en) | 2005-12-21 |
HK1107137A1 (en) | 2008-03-28 |
GB0413655D0 (en) | 2004-07-21 |
NZ551296A (en) | 2009-12-24 |
DK1756472T3 (en) | 2010-07-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1607675A1 (en) | Heat resistant casing | |
EP1756472B1 (en) | Heat resistant casing | |
EP2206950A1 (en) | Heat resistant casing | |
EP1688663B1 (en) | Fire-resistant lighting fitting | |
US7651238B2 (en) | Fireproof trim and insulated lighting assembly | |
US10544622B2 (en) | Wired pocket | |
GB2325728A (en) | Fire-resistant, ventilated covers for electrical fittings | |
US20080170404A1 (en) | Fire stop for light fixture | |
EP0995064B1 (en) | Ventilated covers for electrical fittings | |
US7665256B2 (en) | Method and apparatus for firestopping a through-penetration | |
EP1754935A1 (en) | A built-in light fitting for fire preventing | |
EP2556291B1 (en) | An adapter for a light fitting | |
US7569776B2 (en) | Intumescent cover for a poke-through assembly | |
GB2453950A (en) | Fire damper | |
JP3994524B2 (en) | Fireproof damping wall | |
WO2008037152A1 (en) | A cylindrical shaped fireproof lamp fitting | |
GB2454449A (en) | Fireproof ventilated recessed downlighter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR LV MK YU |
|
AKX | Designation fees paid | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20060622 |