GB2422191A - Fire Resistant Light Fitting - Google Patents

Fire Resistant Light Fitting Download PDF

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Publication number
GB2422191A
GB2422191A GB0501607A GB0501607A GB2422191A GB 2422191 A GB2422191 A GB 2422191A GB 0501607 A GB0501607 A GB 0501607A GB 0501607 A GB0501607 A GB 0501607A GB 2422191 A GB2422191 A GB 2422191A
Authority
GB
United Kingdom
Prior art keywords
lighting fitting
fitting
lighting
panel
flange
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.)
Granted
Application number
GB0501607A
Other versions
GB2422191B (en
GB0501607D0 (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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34259701&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB2422191(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to GB0501607A priority Critical patent/GB2422191B/en
Application filed by RD Europe Ltd filed Critical RD Europe Ltd
Publication of GB0501607D0 publication Critical patent/GB0501607D0/en
Priority to EP06250433A priority patent/EP1688663B1/en
Priority to DE602006005965T priority patent/DE602006005965D1/en
Priority to AT06250433T priority patent/ATE427454T1/en
Priority to DK06250433T priority patent/DK1688663T3/en
Priority to ES06250433T priority patent/ES2324956T3/en
Priority to NO20060452A priority patent/NO328171B1/en
Publication of GB2422191A publication Critical patent/GB2422191A/en
Publication of GB2422191B publication Critical patent/GB2422191B/en
Application granted granted Critical
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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

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)
  • Special Wing (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Dowels (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A recessed lighting fitting (10) intended to be mounted in a panel includes a body (20) for lamp (21) and a flange (26) which extends at least partially around the body (20). The flange (26) lies adjacent to the panel (12). The flange (26) includes a first body of material (27) (which may be intumescent) which inhibits the transmission of fire in a region between the flange (26) and an adjacent panel (12). The body (20) is equipped with a ventilation hole (34) and includes a second body of material (31) inhibits the transmission of fire between the interior and exterior of the lighting fitting (10) via a 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

Fire-resistant lighting fitting 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 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 1 5 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.
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 in which a lamp may be mounted and a flange which extends at least partially around the body, the lighting 1 5 fitting being arranged to be installed in a panel so that the flange lies adjacent to the panel, wherein the flange comprises a first body of material which is arranged in use to inhibit the transmission of fire in a region between the flange and an adjacent panel, and the body is equipped with at least one ventilation hole and comprises a second body of material which is arranged in use to inhibit the transmission of fire between the interior and exterior of the lighting fitting via the at least one ventilation hole.
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, 1mm thick steel.
In a preferred embodiment, the first body of material is activated by heat to form an arrangement in which it inhibits the transmission of fire in a region between the flange and an adjacent panel. 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.
1 5 In a preferred embodiment, the second body of material is activated by heat to form an arrangement in which it inhibits the transmission of fire via the at least one ventilation hole. 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.
In a preferred embodiment, the body of the lighting fitting comprises a rigid thermally conductive substance, and the second body of material is attached to an external surface thereof. Preferably, the second body of material is 1 5 equipped with a ventilation hole corresponding to each of the at least one ventilation holes in the body of the lighting fitting. Preferably, a further layer of a thermally conductive substance is attached to the external surface of the second body of material. More preferably, the further layer of a thermally conductive substance is equipped with a ventilation hole corresponding to each of the at least one ventilation holes in the body of the lighting fitting and the second body of material. Thus 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 doublewalled 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 1 5 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 rigid wall 25 which extends to form an annular flange 26. The rigid wall 25 and flange 26 of the body 20 may be constructed from any suitably heattolerant material apparent to the man skilled in the art, such as for example 1 mm thick steel. Attached to the internal surface of flange 26 (i.e. the surface adjacent to the panel 1 2) is a layer of intumescent material 27 mounted on silicone rubber 28, which extends around the entire circumference of the rigid wall 25.
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. In the event of a substantial increase in the temperature (e.g. in the event of a fire) , the intumescent material 27 will expand to provide a fire-proof seal between the flange 26 and the panel 12.
The silicone rubber 28 inhibits the transmission of heat from the lighting fitting 1 0 to the ceiling panel 1 2 during normal use, thereby protecting the 1 5 ceiling panel 1 2 from heat damage. Furthermore, the silicone rubber 28 also inhibits the transmission of vibrations between the lighting fitting 10 and the ceiling panel 1 2, thereby helping to minimise the transmission of noise within the building.
The spring clips 23 are mounted in recesses 40 in the wall 25 of the lighting fitting, and urge the lighting fitting against the ceiling panel 1 2 in order to securely mount the lighting fitting in place.
The cylindrical wall 25 of the lighting fitting is closed at one end 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 fireresistant 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.

Claims (21)

  1. CLAIMS: 1. A lighting fitting intended to be mounted in a panel,
    comprising a body in which a lamp may be mounted and a flange which extends at least partially around the body, the lighting fitting being arranged to be installed in a panel so that the flange lies adjacent to the panel, wherein the flange comprises a first body of material which is arranged in use to inhibit the transmission of fire in a region between the flange and an adjacent panel, and the body is equipped with at least one ventilation hole and comprises a second body of material which is arranged in use to inhibit the transmission of fire between the interior and exterior of the lighting fitting via the at least one ventilation hole.
  2. 2. The lighting fitting of claim 1, wherein the body of the light fitting comprises a rigid, heat resistant material.
  3. 3. The lighting fitting of claim 1 or 2, wherein the first body of material is activated by heat.
  4. 4. The lighting fitting of claim 3, wherein the first body of material expands on heating.
  5. 5. The lighting fitting of claim 4 or 5 wherein the first body of material is intumescent.
  6. 6. The lighting fitting of any preceding claim, wherein the second body of material is activated by heat.
  7. 7. The lighting fitting of claim 6, wherein the second body of material expands on heating.
  8. 8. The lighting fitting of claim 6 or 7, wherein the second body of material is intumescent.
  9. 9. The lighting fitting of any preceding claim, wherein the first body of material and the second body of material have the same properties.
  10. 10. 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.
  11. 11. The lighting fitting of any preceding claim, wherein the body of the lighting fitting comprises a rigid thermally conductive substance, and the second body of material is attached to an external surface thereof.
  12. 1 2. The lighting fitting of claim 11, wherein the second body of material is equipped with a ventilation hole corresponding to each of the at least one ventilation holes in the body of the lighting fitting.
  13. 1 3. The lighting fitting of claim 11 or 1 2, wherein a further layer of a thermally conductive substance is attached to the external surface of the second body of material.
  14. 14. The lighting fitting of claim 13, wherein the further layer of a thermally conductive substance is equipped with a ventilation hole corresponding to each of the at least one ventilation holes in the body of the lighting fitting and the second body of material.
  15. 15. The lighting fitting of any preceding claim, comprising a resiliently deformable means which acts, in use, to urge the flange against the panel in which the fitting is mounted.
  16. 1 6. The lighting fitting of claim 1 5, wherein the resiliently deformable means comprises spring clips attached to the body of the lighting fitting.
  17. 17. The lighting fitting of claim 16, wherein the spring clips are points on the side of the body, which points are recessed into the side of the body of the lighting fitting.
  18. 18. 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.
  19. 19. The lighting fitting of claim 18, wherein the thermal insulation is air.
  20. 20. The lighting fitting of any preceding claim wherein the flange comprises the first body of material 1 5
  21. 21. A lighting fitting substantially as herein described with reference to the accompanying drawing.
    20. A lighting fitting substantially as herein described with reference to the accompanying drawing.
    Amendments to the claims have been filed as follows 1. A lighting fitting intended to be mounted in a panel, comprising a body 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 material, the lighting fitting being arranged to be installed in a panel so that the flange lies adjacent to the panel, wherein the first body of material arranged in use, such that, it inhibits the transmission of fire in a region between the flange and an adjacent panel, the body further comprising 1 0 at least one ventilation hole and a second body of material arranged such that, in use, it inhibits the transmission of fire between the interior and exterior of the lighting fitting via the at least one ventilation hole.
    2. The lighting fitting of claim 1, wherein the body of the light fitting 1 5 comprises a heat resistant material.
    3. The lighting fitting of claim 1 or 2, wherein the first body of material is activated by heat.
    4. The lighting fitting of claim 3, wherein the first body of material expands on heating.
    11. The lighting fitting of any preceding claim, wherein the body of the lighting fitting comprises a thermally conductive substance, and the second body of material is attached to an external surface thereof.
    1 2. The lighting fitting of claim 11, wherein the second body of material is equipped with a ventilation hole corresponding to each of the at least one ventilation holes in the body of the lighting fitting.
    1 3. The lighting fitting of claim 11 or 1 2, wherein a further layer of a thermally conductive substance is attached to the external surface of the second body of material.
    1 4. The lighting fitting of claim 1 3, wherein the further layer of a: thermally conductive substance is equipped with a ventilation hole corresponding to each of the at least one ventilation holes in the body of the lighting fitting and the second body of material.
    1 5. The lighting fitting of any preceding claim, comprising a resiliently deformable means which acts, in use, to urge the flange against the panel in which the fitting is mounted.
    1 6. The lighting fitting of claim 1 5, wherein the resiliently deformable means comprises spring clips attached to the body of the lighting fitting.
    1 7. The lighting fitting of claim 1 6, wherein the spring clips are attached to points on the side of the body, which points are recessed into the side of the body of the lighting fitting.
    18. 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.
    1 0 1 9. The lighting fitting of claim 1 8, wherein the thermal insulation is air.
GB0501607A 2005-01-27 2005-01-27 Fire-resistant lighting fitting Active GB2422191B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB0501607A GB2422191B (en) 2005-01-27 2005-01-27 Fire-resistant lighting fitting
EP06250433A EP1688663B1 (en) 2005-01-27 2006-01-26 Fire-resistant lighting fitting
ES06250433T ES2324956T3 (en) 2005-01-27 2006-01-26 FIRE RESISTANT LIGHTING DEVICE.
DE602006005965T DE602006005965D1 (en) 2005-01-27 2006-01-26 Fire resistant lighting device
AT06250433T ATE427454T1 (en) 2005-01-27 2006-01-26 FIRE RESISTANT LIGHTING DEVICE
DK06250433T DK1688663T3 (en) 2005-01-27 2006-01-26 Fireproof lighting fixtures
NO20060452A NO328171B1 (en) 2005-01-27 2006-01-27 Fireproof light fixture

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
GB0501607D0 GB0501607D0 (en) 2005-03-02
GB2422191A true GB2422191A (en) 2006-07-19
GB2422191B GB2422191B (en) 2007-01-10

Family

ID=34259701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0501607A Active GB2422191B (en) 2005-01-27 2005-01-27 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)

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GB2426321A (en) * 2005-05-23 2006-11-22 Aurora Ltd Fire rated downlights
GB2443837A (en) * 2006-12-22 2008-05-21 Rd Europe Ltd Fire resistant light fitting
GB2466875A (en) * 2009-01-12 2010-07-14 Scolmore Int Ltd Heat resistant casing
GB2429052B (en) * 2005-08-08 2010-09-22 Laurence Kovacs Lighting assemblies
GB2509772A (en) * 2013-01-15 2014-07-16 Kosnic Uk Ltd LED down light
GB2514564A (en) * 2013-05-28 2014-12-03 James Anthony Ryan An Electrical Fitting Recessed In A Partition
GB2515649A (en) * 2014-06-09 2014-12-31 Kosnic Uk Ltd Fire resistant downlight
GB2527199A (en) * 2014-06-09 2015-12-16 Lextar Electronics Corp Recessed light fixture
WO2016082026A1 (en) * 2014-11-26 2016-06-02 Jammbco Holdings Ltd Downlight firestop
US9803845B2 (en) 2014-11-26 2017-10-31 Ursatech Ltd. Downlight firestop
US9853267B2 (en) 2014-02-03 2017-12-26 Ursatech Ltd. Intumescent battery housing
US10704751B2 (en) 2014-11-26 2020-07-07 Ursatech Ltd. Downlight firestop
GB2561035B (en) * 2017-03-30 2021-06-23 Kinace Innovations Ltd LED lighting unit
US11794043B2 (en) 2019-12-10 2023-10-24 Ursatech Ltd. Ceiling fixture firestop

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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
FR3007508B1 (en) * 2013-06-24 2018-11-30 Manuel Benjumea SEALING EQUIPMENT FOR INSIDE AND LUMINAIRE LUMINAIRE COMPRISING THE SAME
US11435064B1 (en) 2013-07-05 2022-09-06 DMF, Inc. Integrated lighting module
US10551044B2 (en) 2015-11-16 2020-02-04 DMF, Inc. Recessed lighting assembly
US11060705B1 (en) 2013-07-05 2021-07-13 DMF, Inc. Compact lighting apparatus with AC to DC converter and integrated electrical connector
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
US10139059B2 (en) 2014-02-18 2018-11-27 DMF, Inc. Adjustable compact recessed lighting assembly with hangar bars
US9964266B2 (en) 2013-07-05 2018-05-08 DMF, Inc. Unified driver and light source assembly for recessed lighting
US10563850B2 (en) 2015-04-22 2020-02-18 DMF, Inc. Outer casing for a recessed lighting fixture
CA3102022C (en) 2015-05-29 2023-04-25 DMF, Inc. Lighting module for recessed lighting systems
USD851046S1 (en) 2015-10-05 2019-06-11 DMF, Inc. Electrical Junction Box
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
CN111670322B (en) 2017-11-28 2022-04-26 Dmf股份有限公司 Adjustable hanger rod assembly
CA3087187A1 (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
WO2021051101A1 (en) 2019-09-12 2021-03-18 DMF, Inc. Miniature lighting module and lighting fixtures using same
CA3124976A1 (en) 2020-07-17 2022-01-17 DMF, Inc. Polymer housing for a lighting system and methods for using same
USD990030S1 (en) 2020-07-17 2023-06-20 DMF, Inc. Housing for a lighting system
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
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DE602006005965D1 (en) 2009-05-14
DK1688663T3 (en) 2009-07-20
EP1688663A2 (en) 2006-08-09
ES2324956T3 (en) 2009-08-20
NO328171B1 (en) 2009-12-21
ATE427454T1 (en) 2009-04-15
EP1688663B1 (en) 2009-04-01
GB2422191B (en) 2007-01-10
EP1688663A3 (en) 2006-08-23
GB0501607D0 (en) 2005-03-02
NO20060452L (en) 2006-07-28

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