EP1688663B1 - Fire-resistant lighting fitting - Google Patents

Fire-resistant lighting fitting Download PDF

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Publication number
EP1688663B1
EP1688663B1 EP06250433A EP06250433A EP1688663B1 EP 1688663 B1 EP1688663 B1 EP 1688663B1 EP 06250433 A EP06250433 A EP 06250433A EP 06250433 A EP06250433 A EP 06250433A EP 1688663 B1 EP1688663 B1 EP 1688663B1
Authority
EP
European Patent Office
Prior art keywords
lighting fitting
fitting
panel
lighting
fire
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.)
Active
Application number
EP06250433A
Other languages
German (de)
French (fr)
Other versions
EP1688663A2 (en
EP1688663A3 (en
Inventor
Di Hua
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.)
RD Europe Ltd
Original Assignee
RD Europe Ltd
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
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Application filed by RD Europe Ltd filed Critical RD Europe Ltd
Publication of EP1688663A2 publication Critical patent/EP1688663A2/en
Publication of EP1688663A3 publication Critical patent/EP1688663A3/en
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Classifications

    • 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
    • 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
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/04—Recessed bases
    • F21V21/041—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates
    • F21V21/042—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates using clamping means, e.g. for clamping with panel or wall
    • F21V21/044—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates using clamping means, e.g. for clamping with panel or wall with elastically deformable elements, e.g. spring tongues
    • F21V21/046—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates using clamping means, e.g. for clamping with panel or wall with elastically deformable elements, e.g. spring tongues being tensioned by rotation of parts
    • 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

  • the first body of material expands on heating.
  • the first body of material is intumescent.
  • the lighting fitting can be supplied with the first body of material in a convenient and/or compact form for ease of installation.
  • the first body of material will be activated to form an arrangement which is effective in inhibiting the transmission of fire.
  • any suitable intumescent material may be used as will be readily apparent to the man skilled in the art, including but not limited to, expandable granule or powder graphite, or carbon granules, used with rockwool fibre, thermoset epoxy, polymer base materials and glass fibre amongst others, as will be readily apparent to the man skilled in the art.
  • the silicone gasket 28 will melt or otherwise deteriorate allowing heat to reach the intumescent material 27, which will then expand to provide a fire-proof seal between the flange 26 and the panel 12.
  • the cylindrical sidewall 25 of the lighting fitting is closed at the opposite end to the flange 26 to form a top surface 30.
  • a second layer of intumescent material 31 is attached to the exterior of top surface 30 and held in place by a steel plate 32.
  • steel plate 32 is shown attached to top surface 30 of the lighting fitting by means of rivets 33, but the skilled man will appreciate that any suitable fire-resistant fastening means could be used.
  • a series of ventilation holes 34 pass through the top surface 30, intumescent material 31 and steel plate 32.

Landscapes

  • General Engineering & Computer Science (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Building Environments (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Special Wing (AREA)
  • Dowels (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A lighting fitting (10) intended to be mounted in a panel includes a body (20) in which a lamp (21) may be mounted, the body comprising a continuous, rigid sidewall, and a flange (26) which extends at least partially around the body (20). The lighting fitting (10) is arranged to be installed in a panel (12) so that the flange (26) lies adjacent to the panel (12). The flange (26) includes a first body of material (27) which is arranged in use to inhibit the transmission of fire in a region between the flange (26) and an adjacent panel (12). The body (20) is equipped with at least one ventilation hole (34) and includes a second body of material (31) which is arranged in use to inhibit the transmission of fire between the interior and exterior of the lighting fitting (10) via the at least one ventilation hole (34). A lighting fitting according to the invention obviates the need for a separate fire hood or equivalent whilst meeting fire regulations.

Description

  • This invention relates to lighting fittings. More specifically, it relates to lighting fittings which inhibit the passage of fire.
  • Lighting fittings are well known in the art. In general, lighting fittings may be classified into three types: freestanding (such as standard lamps), those mounted on a panel (such as wall mounted fittings, or those attached to the ceiling), and those mounted in a panel (such as downlighters typically mounted in a ceiling panel).
  • The latter type of fitting requires the creation of a sizeable aperture in the panel, through which the body of the lighting fitting is mounted. These are particularly popular because the lighting fitting can be flush or almost flush with the panel in which it is mounted, thereby providing illumination without visually obtrusive fittings.
  • However, one significant concern relates to the issue of fire safety. It is advisable, and in many situations may be required by health and safety or building regulations, to inhibit the spread of fire between different levels of a multi-storey building, and between different rooms within a building. This is assisted by the provision of a fire-resistant ceiling structure, which inhibits the spread of fire from a burning room below to the rooms above. For example, British Standard BS476 part 21 makes certain requirements about the construction and fire-resistance of a ceiling.
  • The ability of a ceiling to contain a fire is significantly eroded by the creation of apertures therein for the installation of lighting fittings. This is further compounded by the requirements of such lighting fittings for adequate ventilation to exhaust the heat produced by the lamp, and so further steps are required to ensure that the resistance to fire is maintained. Commonly the lighting fitting is equipped with a 'fire hood' such as that described in UK Patent No GB 2297609 , which is fitted over the top of the lighting fitting and provides a suitably fire-resistant barrier over the aperture in which the fitting is mounted. However, this significantly increases the cost of the lighting fitting, as well as the labour costs of installation.
  • GB 2326467 discloses a downlighter with integral fire-resistant hood. The arrangement disclosed therein comprises a cloth hood used in combination with support straps and a reflector to receive a lamp. The cloth hood is coated or impregnated with intumescent material.
  • EP 0909919 discloses a fire protection cover for an electrical device recessed into a wall or ceiling. The cover comprises one or more support layers coated with one or more layers of intumescent material. The cover may comprise one or more apertures to enable the cover to be ventilated and/or for access to cabling.
  • The present invention has been conceived with the above issues in mind.
  • According to the present invention, there is provided a lighting fitting intended to be mounted in a panel, comprising a body of a thermally conductive substance in which a lamp may be mounted, the body comprising a continuous, rigid sidewall, a flange which extends at least partially around the sidewall and a first body of heat activable material, the lighting fitting being arranged to be installed in a panel so that the first body of heat activable material lies adjacent to the panel and between the flange and the panel, the first body of material being arranged such that it inhibits the transmission of fire in a region between the flange and an adjacent panel, the body further comprising at least one ventilation hole and a second body of heat activable material arranged such that it inhibits the transmission of fire between the interior and exterior of the lighting fitting via the at least one ventilation hole, characterised in that the second body of heat activable material is attached to an external surface of the body, held in place by a further layer of a thermally conductive substance lying over the external surface of the second body of material and attached to the body, and in that the second body of heat activable material and the layer of a thermally conductive substance are each equipped with a ventilation hole corresponding to each of the at least one ventilation hole in the body of the lighting fitting.
  • In normal use, the ventilation holes allow operation of the lamp without the risk of overheating. In the case of a fire on either side of the panel, then the first body of material will inhibit transmission of fire through the aperture between the lighting fitting and the panel in which the lighting fitting is mounted. The second body of material will inhibit the transmission of fire through the at least one ventilation hole.
  • The body of the light fitting may comprise any rigid, heat resistant material as will be apparent to the man skilled in the art. Suitable materials include, but are not limited to, various metals, especially steel.
  • Preferably the first body of material expands on heating. Most preferably the first body of material is intumescent. Thus the lighting fitting can be supplied with the first body of material in a convenient and/or compact form for ease of installation. In the case of fire, the first body of material will be activated to form an arrangement which is effective in inhibiting the transmission of fire.
  • Preferably the second body of material expands on heating. Most preferably the second body of material is intumescent. Thus the cover can be supplied with the second body of material in a convenient and/or compact form for ease of installation. In the case of fire, the second body of material will be activated to form an arrangement which is effective in inhibiting the transmission of fire.
  • In a preferred embodiment, the first body of material and the second body of material have the same properties.
  • Suitable intumescent materials include, but are not limited to, expandable granule or powder graphite, or carbon granules, used with rockwool fibre, thermoset epoxy, polymer base materials and glass fibre amongst others, as will be readily apparent to the man skilled in the art.
  • In a preferred embodiment, the lighting fitting is equipped with a cover to prevent ingress of moisture from the room into the interior of the lighting fitting, said cover containing an at least partially transparent part to enable illumination of the room In which the lighting fitting is mounted. The cover enables the lighting fitting to be used in an environment of relatively high atmospheric moisture, such as in a bathroom or kitchen, without the risk of moisture affecting the electrical connections of the lamp.
  • The second body of material is protected from damage by sandwiching between the two thermally conductive layers. Furthermore, the layers on either side of the second body of material prevent localised build-up of heat (e.g. from the lamp) which might activate the second body of material unnecessarily. Thus, the second body of material will be activated to block the ventilation holes only when the ambient temperature reaches the required level, as would be the case in a fire.
  • In a preferred embodiment, the lighting fitting is secured against the panel in which it is mounted by means of a resiliently deformable means which acts to urge the flange against the panel. Preferably, the resiliently deformable means comprise spring clips attached to either side of the body of the lighting fitting. More preferably, the points of attachment of the spring clips are recessed into the side of the body of the lighting fitting. This minimises the size of the aperture that is needed for installation, thereby reducing the loss of fire-resistance caused by installation of the lighting fitting and hence reducing the dependence on the fire-resisting features of the lighting fitting itself.
  • In a preferred embodiment, the body of the lighting fitting has a double-walled construction with a layer of thermal insulation between the two walls. Preferably, the thermal insulation is air. This minimises the transfer of heat through the lighting fitting from the burning room below, thereby reducing the likelihood of ignition above the panel.
  • A specific embodiment of the present invention will now be described with reference to the accompanying drawing, which is a section through a lighting fitting according to the present invention.
  • A lighting fitting 10 is mounted in an aperture 11 of a ceiling panel 12. The lighting fitting comprises a body 20, a lamp 21, and spring clips 23.
  • The body 20 of the lighting fitting comprises a substantially cylindrical, continuous, rigid sidewall 25 which extends to form an annular flange 26 projecting from the sidewall at an open end of the cylindrical body. The sidewall material further extends to form a lip 26a around the peripheral edge of the flange 26. The rigid sidewall 25, flange 26 and lip 26a of the body 20 may be constructed from any suitably heat-tolerant material apparent to the man skilled in the art, such as for example 1mm thick steel. Mounted on the surface of flange 26 directed towards the remainder of the body (i.e. the surface which in use will lie adjacent to the panel 12) is an annular silicone rubber gasket 28 which extends around the entire circumference of the rigid sidewall 25 and substantially fills the region between the sidewall 25 and the lip 26a. Any other suitable resilient material could be used for the gasket.
  • The silicone rubber gasket 28 is stepped with a thicker region at its outer edge and a thinner region at it inner edge. The thicker region is slightly thicker than the height the lip 26a extends from the surface of the flange on which the gasket 28 is mounted. On the thinner region of the gasket there is mounted an annular gasket 27 of intumescent material. This gasket is a little thinner than the height of the thicker portion of the silicone rubber gasket 28, so that the thicker portion of the silicone rubber gasket protrudes above the intumescent gasket 27.
  • For the instumescent gasket 27, any suitable intumescent material may be used as will be readily apparent to the man skilled in the art, including but not limited to, expandable granule or powder graphite, or carbon granules, used with rockwool fibre, thermoset epoxy, polymer base materials and glass fibre amongst others, as will be readily apparent to the man skilled in the art.
  • The silicone rubber 28 gasket serves a number of functions. It inhibits the transmission of heat from the lighting fitting 10 to the ceiling panel 12 during normal use, thereby protecting the ceiling panel 12 from heat damage. As the thicker portion of the gasket 28 will contact a ceiling panel in which the fitting is installed it will form an at least partial seal with the ceiling panel reducing drafts and passage of dust and debris between the flange 26 and panel and its resilient nature will also inhibit the transmission of vibrations between the lighting fitting 10 and the ceiling panel 12, thereby helping to minimise the transmission of noise within the building. Further, the silicone rubber 28 gasket can form a seal between the intumescent material 27 and the outer lip 26a of flange 26, and serves to locate the intumescent gasket 27 on the flange 26.
  • In the event of a substantial increase in the temperature (e.g. in the event of a fire), the silicone gasket 28 will melt or otherwise deteriorate allowing heat to reach the intumescent material 27, which will then expand to provide a fire-proof seal between the flange 26 and the panel 12.
  • The spring clips 23 are mounted in recesses 40 in the sidewall 25 of the lighting fitting, and urge the lighting fitting against the ceiling panel 12 in order to securely mount the lighting fitting in place. It is preferable that the spring clips 23 are of high quality steel, such as tempered steel, which can withstand temperatures of at least 400-500 °C without significant loss of their mechanical properties. It is known that conventional spring clips in conventional lighting fittings may fail during a fire, at which point the entire fitting may break away from the ceiling panel.
  • The cylindrical sidewall 25 of the lighting fitting is closed at the opposite end to the flange 26 to form a top surface 30. A second layer of intumescent material 31 is attached to the exterior of top surface 30 and held in place by a steel plate 32. The skilled man will appreciate that any rigid thermally conductive material could be used in place of the steel. Steel plate 32 is shown attached to top surface 30 of the lighting fitting by means of rivets 33, but the skilled man will appreciate that any suitable fire-resistant fastening means could be used. A series of ventilation holes 34 pass through the top surface 30, intumescent material 31 and steel plate 32.
  • In the event of a substantial increase in the temperature (e.g. in the event of a fire), the intumescent material 31 will expand to provide a fire-proof seal across the ventilation holes 34.
  • The embodiment is described by way of example only, and many variations are possible without departing from the invention as defined by the appended claims.

Claims (16)

  1. A lighting fitting (10) intended to be mounted in a panel (12), comprising a body (20) of a thermally conductive substance in which a lamp (21) may be mounted, the body comprising a continuous, rigid sidewall (25), a flange (26) which extends at least partially around the sidewall and a first body of heat activable material (27), the lighting fitting being arranged to be installed in a panel so that the first body of heat activable material lies adjacent to the panel and between the flange and the panel, the first body of material being arranged such that it inhibits the transmission of fire in a region between the flange and an adjacent panel, the body further comprising at least one ventilation hole (34) and a second body of heat activable material (31) arranged such that it inhibits the transmission of fire between the interior and exterior of the lighting fitting via the at least one ventilation hole characterised in that the second body of heat activable material is attached to an external surface of the body, held in place by a further layer of a thermally conductive substance lying over the external surface of the second body of material and attached to the body, and in that the second body of heat activable material and the layer of a thermally conductive substance are each equipped with a ventilation hole corresponding to each of the at least one ventilation hole in the body of the lighting fitting.
  2. The lighting fitting of claim 1, wherein the body of the light fitting comprises a heat resistant material.
  3. The lighting fitting of claim 1 or 2, wherein the first body of material expands on heating.
  4. The lighting fitting of any preceding claim wherein the first body of material is intumescent.
  5. The lighting fitting of any preceding claim, wherein the second body of material expands on heating.
  6. The lighting fitting of claim 4 or 5, wherein the second body of material is intumescent.
  7. The lighting fitting of any preceding claim, wherein the first body of material and the second body of material have the same properties.
  8. The lighting fitting of any preceding claim, wherein the lighting fitting is equipped with a cover to prevent ingress of moisture from the room into the interior of the lighting fitting, said cover containing an at least partially transparent part to enable illumination of the room in which the lighting fitting is mounted.
  9. The lighting fitting of any preceding claim, wherein the sidewall of the body has recesses.
  10. The lighting fitting of any preceding claim, comprising a resiliently deformable means (23) which acts, in use, to urge the flange against the panel in which the fitting is mounted.
  11. The lighting fitting of claim 10, wherein the resiliently deformable means comprises spring clips attached to the body of the lighting fitting.
  12. The fighting fitting of claim 11, wherein the spring clips are mounted at points on the side of the body, which points are recessed into the side of the body of the lighting fitting.
  13. The lighting fitting of any preceding claim, wherein the body of the lighting fitting has a double-walled construction with a layer of thermal insulation between the two walls.
  14. The lighting fitting of claim 13, wherein the thermal insulation is air.
  15. The lighting fitting of claim 10 when dependent on claim 9, wherein the resiliently deformable means is mounted in the recesses.
  16. The lighting fitting of claim 15, wherein the resiliently deformable means is at least partially disposed in the recesses.
EP06250433A 2005-01-27 2006-01-26 Fire-resistant lighting fitting Active EP1688663B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0501607A GB2422191B (en) 2005-01-27 2005-01-27 Fire-resistant lighting fitting

Publications (3)

Publication Number Publication Date
EP1688663A2 EP1688663A2 (en) 2006-08-09
EP1688663A3 EP1688663A3 (en) 2006-08-23
EP1688663B1 true EP1688663B1 (en) 2009-04-01

Family

ID=34259701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06250433A Active EP1688663B1 (en) 2005-01-27 2006-01-26 Fire-resistant lighting fitting

Country Status (7)

Country Link
EP (1) EP1688663B1 (en)
AT (1) ATE427454T1 (en)
DE (1) DE602006005965D1 (en)
DK (1) DK1688663T3 (en)
ES (1) ES2324956T3 (en)
GB (1) GB2422191B (en)
NO (1) NO328171B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB2443837B (en) * 2006-12-22 2009-02-25 Rd Europe Ltd Fire resistant lighting fitting
GB2446160B (en) * 2006-12-22 2009-11-18 Rd Europe Ltd Lighting fitting
CN201149181Y (en) * 2007-12-11 2008-11-12 武良举 Embedded type lamp with heat radiating device
GB0900420D0 (en) * 2009-01-12 2009-02-11 Scolmore Int Ltd Heat resistant casing
GB2509772B (en) * 2013-01-15 2020-01-01 Kosnic Lighting Ltd Fire rated LED down-light that dissipates the excess heat via a front bezel trim heat-sink
GB2514564A (en) * 2013-05-28 2014-12-03 James Anthony Ryan An Electrical Fitting Recessed In A Partition
FR3007508B1 (en) * 2013-06-24 2018-11-30 Manuel Benjumea SEALING EQUIPMENT FOR INSIDE AND LUMINAIRE LUMINAIRE COMPRISING THE SAME
US11060705B1 (en) 2013-07-05 2021-07-13 DMF, Inc. Compact lighting apparatus with AC to DC converter and integrated electrical connector
US11435064B1 (en) 2013-07-05 2022-09-06 DMF, Inc. Integrated lighting module
US10753558B2 (en) 2013-07-05 2020-08-25 DMF, Inc. Lighting apparatus and methods
US11255497B2 (en) 2013-07-05 2022-02-22 DMF, Inc. Adjustable electrical apparatus with hangar bars for installation in a building
US10563850B2 (en) 2015-04-22 2020-02-18 DMF, Inc. Outer casing for a recessed lighting fixture
US9964266B2 (en) 2013-07-05 2018-05-08 DMF, Inc. Unified driver and light source assembly for recessed lighting
US10139059B2 (en) 2014-02-18 2018-11-27 DMF, Inc. Adjustable compact recessed lighting assembly with hangar bars
US10551044B2 (en) 2015-11-16 2020-02-04 DMF, Inc. Recessed lighting assembly
US9853267B2 (en) 2014-02-03 2017-12-26 Ursatech Ltd. Intumescent battery housing
US9890944B2 (en) 2014-06-09 2018-02-13 Lextar Electronics Corporation Recessed light fixture
GB2515649B (en) * 2014-06-09 2015-10-14 Kosnic Lighting Ltd Fire resistant downlight
US10704751B2 (en) 2014-11-26 2020-07-07 Ursatech Ltd. Downlight firestop
US9797563B2 (en) 2014-11-26 2017-10-24 Ursatech Ltd. Downlight firestop
US9803845B2 (en) 2014-11-26 2017-10-31 Ursatech Ltd. Downlight firestop
CA2931588C (en) 2015-05-29 2021-09-14 DMF, Inc. Lighting module for recessed lighting systems
USD851046S1 (en) 2015-10-05 2019-06-11 DMF, Inc. Electrical Junction Box
GB2561035B (en) * 2017-03-30 2021-06-23 Kinace Innovations Ltd LED lighting unit
WO2018237294A2 (en) 2017-06-22 2018-12-27 DMF, Inc. Thin profile surface mount lighting apparatus
US10488000B2 (en) 2017-06-22 2019-11-26 DMF, Inc. Thin profile surface mount lighting apparatus
USD905327S1 (en) 2018-05-17 2020-12-15 DMF, Inc. Light fixture
US11067231B2 (en) 2017-08-28 2021-07-20 DMF, Inc. Alternate junction box and arrangement for lighting apparatus
WO2019108667A1 (en) 2017-11-28 2019-06-06 Dmf. Inc. Adjustable hanger bar assembly
WO2019133669A1 (en) 2017-12-27 2019-07-04 DMF, Inc. Methods and apparatus for adjusting a luminaire
USD877957S1 (en) 2018-05-24 2020-03-10 DMF Inc. Light fixture
WO2019241198A1 (en) 2018-06-11 2019-12-19 DMF, Inc. A polymer housing for a recessed lighting system and methods for using same
USD903605S1 (en) 2018-06-12 2020-12-01 DMF, Inc. Plastic deep electrical junction box
CA3115146A1 (en) 2018-10-02 2020-04-09 Ver Lighting Llc A bar hanger assembly with mating telescoping bars
USD901398S1 (en) 2019-01-29 2020-11-10 DMF, Inc. Plastic deep electrical junction box
USD1012864S1 (en) 2019-01-29 2024-01-30 DMF, Inc. Portion of a plastic deep electrical junction box
USD966877S1 (en) 2019-03-14 2022-10-18 Ver Lighting Llc Hanger bar for a hanger bar assembly
CA3154491A1 (en) 2019-09-12 2021-03-18 DMF, Inc. Miniature lighting module and lighting fixtures using same
US11794043B2 (en) 2019-12-10 2023-10-24 Ursatech Ltd. Ceiling fixture firestop
USD990030S1 (en) 2020-07-17 2023-06-20 DMF, Inc. Housing for a lighting system
CA3124976A1 (en) 2020-07-17 2022-01-17 DMF, Inc. Polymer housing for a lighting system and methods for using same
CA3125954A1 (en) 2020-07-23 2022-01-23 DMF, Inc. Lighting module having field-replaceable optics, improved cooling, and tool-less mounting features
CN112066536B (en) * 2020-08-14 2021-07-27 苏州生益净化工程设备有限公司 Supply-air outlet convenient to installation
GB2598401A (en) * 2020-09-01 2022-03-02 Lumi Plugin Ltd Lighting fixture with low profile light guide
US11384929B2 (en) 2020-09-11 2022-07-12 De Brousse & Crémant Inc. Fire rated recessed lighting fixture

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0909919A2 (en) * 1997-10-14 1999-04-21 Carboline Europe Limited Downlighter cover

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4104727C1 (en) * 1991-02-15 1992-08-27 Herner Glas Bernd Hoffbauer Gmbh & Co Leuchten- Und Industrieglas Kg, 4690 Herne, De
NZ264352A (en) 1994-08-31 1998-06-26 Targetti Nz Ltd Recessed fireproof electrical equipment box for insertion into building structure has a flange and layer of ceramic material
GB9501391D0 (en) * 1995-01-25 1995-03-15 Environmental Seals Ltd Ventilated covers for electrical fittings
CA2152851A1 (en) * 1995-06-28 1996-12-29 Philip Joseph Karam Lamp assembly, double wall, with insulator space between the walls
GB2326467A (en) * 1997-05-29 1998-12-23 Environmental Seals Ltd Downlighter with integral fire-resistant hood
GB9710921D0 (en) * 1997-05-29 1997-07-23 Euro Passive Fire Protection L Ventilated covers for electrical fittings
DE69804461D1 (en) * 1997-07-08 2002-05-02 Euro Passive Fire Prot Ltd VENTILATED PANEL FOR ELECTRICAL LIGHTING DEVICES
GB0130869D0 (en) * 2001-12-21 2002-02-06 Environmental Seals Ltd Covers for electrical fittings
FR2837910A1 (en) * 2002-03-26 2003-10-03 Koninkl Philips Electronics Nv FIXING SUPPORT, ESPECIALLY FOR RECESSED LUMINAIRE
GB2430729B (en) * 2004-06-09 2008-03-26 Liangju Wu A built-in light fitting for fire preventing
GB0413655D0 (en) * 2004-06-18 2004-07-21 Scolmore Int Ltd Heat resistant casing

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0909919A2 (en) * 1997-10-14 1999-04-21 Carboline Europe Limited Downlighter cover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3685096B1 (en) * 2017-09-19 2024-07-31 Lumi-Plugin Ltd A modular lighting fixture

Also Published As

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NO20060452L (en) 2006-07-28
NO328171B1 (en) 2009-12-21
GB0501607D0 (en) 2005-03-02
DK1688663T3 (en) 2009-07-20
EP1688663A2 (en) 2006-08-09
GB2422191A (en) 2006-07-19
DE602006005965D1 (en) 2009-05-14
ATE427454T1 (en) 2009-04-15
GB2422191B (en) 2007-01-10
ES2324956T3 (en) 2009-08-20
EP1688663A3 (en) 2006-08-23

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