US3860829A - Fluorescent fixture auxiliary light - Google Patents

Fluorescent fixture auxiliary light Download PDF

Info

Publication number
US3860829A
US3860829A US387386A US38738673A US3860829A US 3860829 A US3860829 A US 3860829A US 387386 A US387386 A US 387386A US 38738673 A US38738673 A US 38738673A US 3860829 A US3860829 A US 3860829A
Authority
US
United States
Prior art keywords
fixture
means
bulb
switch means
rear wall
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.)
Expired - Lifetime
Application number
US387386A
Inventor
William C Fabbri
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.)
KCS LIGHTING Inc A CORP OF
Original Assignee
Keene Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Keene Corp filed Critical Keene Corp
Priority to US387386A priority Critical patent/US3860829A/en
Application granted granted Critical
Publication of US3860829A publication Critical patent/US3860829A/en
Assigned to KCS LIGHTING, INC., A CORP OF reassignment KCS LIGHTING, INC., A CORP OF ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KEENE CORPORATION, A CORP. OF NEW YORK
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F21V23/026Fastening of transformers or ballasts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/02Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/02Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026Lighting 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/022Emergency lighting devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/02Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/04Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/107Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using hinge joints
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00Elongate light sources, e.g. fluorescent tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00Combination of light sources
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00Combination of light sources
    • F21Y2113/20Combination of light sources of different form
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T307/00Electrical transmission or interconnection systems
    • Y10T307/50Plural supply circuits or sources
    • Y10T307/615Substitute or emergency source
    • Y10T307/625Storage battery or accumulator

Abstract

An auxiliary lighting unit for use with a fluorescent fixture of the type having a recessed ballast well is provided. The unit comprises a removable cover for the ballast well to which is mounted a self-contained power source and bulb connected to the power source. Switch means are provided which interconnect the power source and bulb. The switch means are normally held OFF but adapted to switch ON in the event of a disruption in the normal power supply to the fixture thereby enabling the auxiliary bulb to act as an emergency light. The unit may also include a photocell positioned to detect when the main light bulbs are turned off and to interconnect the emergency bulb and normal power supply at that time thereby enabling the auxiliary bulb to act as a night light.

Description

United States Patent [1 1 3,860,829

Fabbri 1 Jan. 14, 1975 FLUORESCENT FIXTURE AUXILIARY Primary Ifxaminer-Rbert K. Schacfcr LIGHT Assistant E.mminerM. Ginsburg Attorney, Agent, or FirmKunc, Dalsimcr, Kane,

[75] Inventor: William C. Fabbri, Billerica, Mass.

Sullivan and Kurucl. [73] Assignee: Keene Corporation, New York,

NY [57] ABSTRACT [22] Filed: Aug. 10, 1973 .i

An auxiliary hghtmg unit for use with a fluorescent PP NOJ 387,386 fixture of the type having a recessed ballast well is provided. The unit comprises a removable cover for LS. CL n R llllC ballast well to WlllCh is mounted a self-contained 315/86 power source and bulb connected to the power l] Int. Cl. H02j 7/00 Source" Switch means are Provided which interconnect 58 Field of Search 307 66, 64; 315 86; the POWer Source and bulb- The Switch means are l l l 5 1 C but adapted to SWItCh in the event of a disruption in the normal power supply to the fix- [56] References Cited ture thereby enabling the auxiliary bulb to act as an emergency light. The unit may also include a photo- UNIFED STATES PATENTS cell positioned to detect when the main light bulbs are 2,504,381 4/1950 Bordelon 200/167 R X turned off and to interconnect the emergency bulb R i 1 and normal power supply at that time thereby en- 3659l79 4/1972 532 H R abling the auxiliary bulb to act as a night light. 3,688,l23 8/1972 Walker 3l5/86 6 Claims, 5 Drawing Figures V 40 4 i A; 32 p /5 4 1 i h. l 30 I), :34 ll U I 30 l! 3 i ,2 3; 22 M 25 x K I 7 2a v 2% V i a. une, v MM M {4 45, h 6

, T Y, T T 51 G 42 6g? Z2 I (22 PATENTEDJANWHTS 3.860.829

' SHEET 10F 3 FIG. 2

PATENTEI] JAN 1 4 I975 sum 20F 3 FLUORESCENT FIXTURE AUXILIARY LIGHT BACKGROUND THE INVENTION The present invention relates to auxiliary lighting fixtures and more particularly to a lighting unit for use with a fluorescent fixture as an emergency or night light.

Emergency lighting systems are commonly used to provide limited illumination in the event of a disruption in normal electrical power service. Such systems usually utilize rechargeable batteries connected to a low wattage bulb through a relay which is held open by the normal flow of current from the main power supply. In the event of a disruption in the main power service, the relay closes thereby connecting the battery to the low voltage bulb and providing emergency lighting for as long as the battery lasts. To this end, during periods of non-use, the rechargeable battery itself is connected to the main power supply through suitable'rectifiers and switches to insure that the battery is always properly charged.

I-Ieretofore, emergency lights were either selfcontained, separate and apart from the main lighting system or incorporated in special fixtures of the main system. While such systems are satisfactory for many purposes their principal drawback is that they are not flexible and do not readily permit rearrangement.

In view of the above, it is the principal object of the present invention to provide an emergency lighting unit adapted to be used with a conventional fluorescent lighting fixture to convert that fixture into an emergency light which may readily be moved from one fixture to another as may be required.

Another object is to provide a unit which can detect when the conventional fluorescent light bulbs are OFF and provide a night light at that time.

SUMMARY OF THE INVENTION The above and other beneficial objects and advantages are attained in accordance with the present invention by providing an auxiliary lighting unit for use with a fluorescent lighting fixture of the type having a ballast well recessed in the rear of the fixture. The auxiliary unit comprises a cover plate for the ballast well adapted to be removably attached to the fixture. A selfcontained power source is attached to the cover extending into the ballast well. A light bulb mounting socket is attached to the cover adapted to support a bulb toward the front of the fixture. Switch means interconnect the bulb socket and power supply and means are provided for normally holding the switch means OFF but adapted to turn the switch means ON in the event of a disruption in normal electrical service. The unit further includes an indicator mounted to the cover and readily visible through the fixture diffuser to give visible indication of the emergency light fixture. The indicator comprises a test switch operable through the diffuser to permit checking of the emergency unit without requiring any disassembling of the light fixture.

The unit may further include a second switch operable through a photoelectric cell to interconnect the emergency bulb with the main power supply. This enables the present auxiliary unit to act as a night light when the main lights are off.

BRIEF DESCRIPTION OF THE DRAWINGS In the accompanying drawings:

FIG. 1 is an environmental view of a fluorescent light fixture incorporating an auxiliary light unit in accordance with the present invention;

FIG. 2 is a bottom plan view of the fixture;

FIG. 3 is a sectional view taken along reference lines 3-3 of FIG. 1 in the direction indicated by the arrows;

FIG. 4 is a perspective view of the auxiliary lighting unit of the present invention; and

FIG. 5 is a circuit diagram for the auxiliary lighting unit.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Reference is now made to the drawings wherein similar components bear the same reference numeral throughout the several views. Accordingly, the present invention relates to an auxiliary lighting unit 10 adapted for use with a fluorescent fixture 12 of the type comprising a troffer 14 having a ballast well 16 recessed in the rear wall 18 of the fixture. The fixture 12 is a conventional fluorescent fixture having side walls 20 and rear wall 18 formed by the troffer and a diffuser plate 22 which extends across the troffer front. While this preferred embodiment will be described in connection with a fluorescent fixture having a troffer, it should be understood that the invention is equally applicable to many other types of fluorescent fixtures such as an industrial or surface mounted box or indeed any fixture having room therein for the additional hardware.

The diffuser plate 22 issupported by frame 24 which is hinged at 26 to provide access to the interior of the fixture to permit inserting and removal of the conven tional fluorescent bulbs 28 mounted therein to appropriate sockets 30. A transformer 32 and the associated leads for electrical interconnection with the various sockets 30 are carried in the ballast well 16 along with the leads from the line voltage supply. Normally, well 16 is covered by a plate provided with slots and tabs that engage appropriate mating parts 34 formed in the rear of the troffer adjacent the well.

In accordance with the present invention, the conventional ballast well covering plate is replaced by the auxiliary lighting unit 10 which comprises an elongated member 36, V-shaped in section. The free edges of member 36 are provided with appropriate slots 38 and tabs 40 to engage the slots and tabs 34 of the fixture in the same manner as the conventional cover plate. Mounted to an exterior surface 42 of member 36 are a pair of spaced sockets 44 adapted to receive a low wattage bulb 46 therebetween and make appropriate electrical contact with the bulb. Generally, the rating of bulb 46 will not exceed 40 watts and the bulb will be rapid start.

Mounted to the surface 48 opposite surface 42 and extending toward the ballast well are the electrical components 50 associated with the present emergency lighting unit. These components include a transfonner 52, rectifier 54 and rechargeable battery 56 and an inverter (if required which converts the output of the battery to AC. The transformer 52 is connected through leads 58 and 60 to the line voltage supply available in the ballast well for feeding bulbs 28. The battery 56 is connected to emergency lamp 46 through relay 59 which is also connected to the line voltage through leads 62 and 64. Relay 59 serves as a switch which is normally held OFF by an appearance of current on line 62 and 64. Inthe event of an absence of current on line 62-64, relay 59 switches ON thereby directly connecting lamp 46 with battery 56 so that the battery serves to light the lamp. At times when the battery is not being drained by lamp 46 it is constantly being charged from the line voltage through transformer 52 and rectifier 54. To this end, rectifier 54 may also include appropri ate limiting circuitry to prevent overcharging and damage to the rechargeable batteries.

In addition to relay 59 tripping in the event of a power shortage, a test switch 66 is provided to manually trip the relay. As shown in FIG. 3, switch 66 includes a push button or detent 68 which rests on the diffuser panel 22. Since the diffuser panel 22 rides loosely in frame 24, it may readily be pushed upwardly to enable tripping of switch 66 without requiring opening of the frame. In addition, the detent 68 may be brightly colored so as to give ready indication of the emergency units presence in the fixture.

As previously stated, elongated member 36 is dimensioned to replace the conventional cover for ballast well 16 and engage the troffer in the same manner as the conventional ballast cover. Further, the only leads that need be connected to render the unit operational are 58 and 60. Thus, if for any reason the unit has to be removed from one lighting fixture to another, all that need be done is to electrically disconnect leads 58 and 60 from the'power supply and mechanically disconnect tabs and slots 38 and 40 from the mating parts 34 of the troffer. The entire emergency unit may then be moved to another fixture where the existing ballast cover is removed and replaced by the present unit after leads 58 and 60 are appropriately connected.

Another feature of the present unit is a photocell 70 mounted to member 36 and sighting on fluorescent bulb 28. The photocell serves to control switch 72 to maintain the switch open wehn incident light reaches its active surface and to allow switch 72 to close when incident light is removed. The switch 72 is in one leg 74 of a circuit extending from the main power supply to bulb 46, the other leg of the circuit being lead 76. As long as bulb 28 remains lit, the photocell serves to keep open the circuit between the main power supply and emergency bulb 46. However, if the bulb 28 is turned off, switch 72 closes connecting the emergency bulb to the main power source thereby enabling the emergency bulb to serve as a night light which automatically goes on when the main lights are turned off. It should be ap parent that leads 58, 62 and 76 may be connected to a single wire 78 and similarly leads 60, 64 and 74 may be connected to a single wire 80 so that the presentunit can be fully installed electrically merely by connecting leads 78 and 80 to the main power supply.

Thus, in accordance with the above, the aforementioned objects and advantages are effectively attained.

Having thus described the invention, what is claimed 1. In a fluorescent fixture of the type adapted to be connected to a line voltage source to provide current to at least one conventional fluorescent light bulb and including means for connection to the line voltage source; a fixture rear wall; an open front section opposite the rear wall; a ballast well recessed in the rear wall; securing means formed in the rear wall; and a ballast well cover removably attached to the rear wall securing means overlying and covering the ballast well; the improvement comprising: an elongated cover member; securing means attached to said elongated cover member, to mate with said rear wall securing means to removably secure said elongated cover member to said rear wall when said ballast well cover is removed from said rear wall; a self contained power source attached to said elongated cover member; light bulb mounting means attached to said cover member; switch means secured to said cover member and interconnecting said bulb mounting means and self contained power source, said switch means normally being held in an OFF position and adapted to switch to an ON position in the event of a disruption of said line voltage source so as to provide an auxiliary lighting unit which can readily be removed from one fixture for attachment to another fixture as required to convert the fixture to which it is attached to an emergency lighting fixture.

2. The invention in accordance with claim 1 wherein said fixture includes a diffuser plate overlying said fixture from section and further comprising indicator means connected to said cover and mounted in position to be visible through said diffuser plate.

3. The invention in accordance with claim 1 further comprising test circuit means connected to said switch means and manually operable toshift from a first, inactive position to a second position shifting said switch means to said ON position and disrupting a connection between said line voltage source and connection means.

4. The invention in accordance with claim 3 wherein said fixture includes adiffuser plate overlying said fixture front, said diffuser plate being shiftable to some degree from said fixture front toward thefixture rear, and said test means includes portions in engagement with said diffuser plate and adapted to move therewith whereby when said diffuser plate is shifted rearwardly, said test means shifts from said first to said second position.

5. The invention in accordance with claim 1 further comprising second switch means connected to said line voltage source, connecting means extending between said bulb mounting means and second switch means and adapted to be connected to said line voltage source through said second switch means.

6. The invention in accordance with claim 5 further comprising a photoelectric cell mounted to said cover to receive light from said conventional fluorescent light bulb, said photoelectric cell being in controlling relationship with said second switch means to maintain said second switch means open when incident light is received from said conventional bulb and to close said second switch means in the absence of incident light from said fluorescent bulb.

Claims (6)

1. In a fluorescent fixture of the type adapted to be connected to a line voltage source to provide current to at least one conventional fluorescent light bulb and including means for connection to the line voltage source; a fixture rear wall; an open front section opposite the rear wall; a ballast well recessed in the rear wall; securing means formed in the rear wall; and a ballast well cover removably attached to the rear wall securing means overlying and covering the ballast well; the improvement comprising: an elongated cover member; securing means attached to said elongated cover member to mate with said rear wall securing means to removably secure said elongated cover member to said rear wall when said ballast well cover is removed from said rear wall; a self contained power source attached to said elongated cover member; light bulb mounting means attached to said cover member; switch means secured to said cover member and interconnecting said bulb mounting means and self contained power source, said switch means normally beinG held in an OFF position and adapted to switch to an ON position in the event of a disruption of said line voltage source so as to provide an auxiliary lighting unit which can readily be removed from one fixture for attachment to another fixture as required to convert the fixture to which it is attached to an emergency lighting fixture.
2. The invention in accordance with claim 1 wherein said fixture includes a diffuser plate overlying said fixture front section and further comprising indicator means connected to said cover and mounted in position to be visible through said diffuser plate.
3. The invention in accordance with claim 1 further comprising test circuit means connected to said switch means and manually operable to shift from a first, inactive position to a second position shifting said switch means to said ON position and disrupting a connection between said line voltage source and connection means.
4. The invention in accordance with claim 3 wherein said fixture includes a diffuser plate overlying said fixture front, said diffuser plate being shiftable to some degree from said fixture front toward the fixture rear, and said test means includes portions in engagement with said diffuser plate and adapted to move therewith whereby when said diffuser plate is shifted rearwardly, said test means shifts from said first to said second position.
5. The invention in accordance with claim 1 further comprising second switch means connected to said line voltage source, connecting means extending between said bulb mounting means and second switch means and adapted to be connected to said line voltage source through said second switch means.
6. The invention in accordance with claim 5 further comprising a photoelectric cell mounted to said cover to receive light from said conventional fluorescent light bulb, said photoelectric cell being in controlling relationship with said second switch means to maintain said second switch means open when incident light is received from said conventional bulb and to close said second switch means in the absence of incident light from said fluorescent bulb.
US387386A 1973-08-10 1973-08-10 Fluorescent fixture auxiliary light Expired - Lifetime US3860829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US387386A US3860829A (en) 1973-08-10 1973-08-10 Fluorescent fixture auxiliary light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US387386A US3860829A (en) 1973-08-10 1973-08-10 Fluorescent fixture auxiliary light

Publications (1)

Publication Number Publication Date
US3860829A true US3860829A (en) 1975-01-14

Family

ID=23529645

Family Applications (1)

Application Number Title Priority Date Filing Date
US387386A Expired - Lifetime US3860829A (en) 1973-08-10 1973-08-10 Fluorescent fixture auxiliary light

Country Status (1)

Country Link
US (1) US3860829A (en)

Cited By (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071749A (en) * 1976-07-22 1978-01-31 Tork, Inc. Self-contained maintenance-free emergency lighting
US4216410A (en) * 1977-11-16 1980-08-05 Feldstein Robert S Emergency lighting system
US4287456A (en) * 1979-12-06 1981-09-01 Alert Safety Lite Products Company Portable fluorescent tube assembly having low voltage convenience outlet
US4374406A (en) * 1981-07-10 1983-02-15 James Hepp Lightweight attachment for solar cell array next to a fluorescent tube
US4520436A (en) * 1983-03-25 1985-05-28 Nrg Inc. Mn Lamp apparatus
US4698733A (en) * 1986-11-05 1987-10-06 Thin-Lite Corporation Clip on stand off wireway cover
US4704664A (en) * 1983-03-25 1987-11-03 Scientific Component System, Inc. Lamp apparatus
GB2215535A (en) * 1988-03-11 1989-09-20 Philips Electronic Associated Discharge lamp lighting system
US4922393A (en) * 1983-03-25 1990-05-01 Scientific Component Systems, Inc. Lamp apparatus
US4941071A (en) * 1989-02-07 1990-07-10 Steelcase, Inc. Quick mounting arrangement for light fixtures in overhead cabinets and the like
US5065294A (en) * 1988-01-22 1991-11-12 Poot Lichtenergie B.V. Fitting for horticultural lighting
GB2255242A (en) * 1991-04-27 1992-10-28 Graham Wild Emergency lighting system
US5174648A (en) * 1992-02-27 1992-12-29 Holophane Company, Inc. Lighting fixture support assembly
US5174642A (en) * 1992-02-27 1992-12-29 Hollophane Company, Inc. Remote ballast assembly
US5479327A (en) * 1994-10-21 1995-12-26 Chen; Kuo L. Lighting fixture for aquariums
US5682131A (en) * 1996-04-04 1997-10-28 Gow; Thomas W. Retractable tamper resistant annunciator
US5757111A (en) * 1995-04-03 1998-05-26 Sato; Giichiro Night light with phosphorescent element
US5791764A (en) * 1996-12-13 1998-08-11 Thin-Lite Corporation Fluorescent light fixture with extruded wire way cover mount
US5845988A (en) * 1997-04-28 1998-12-08 Mandall; Michael C. Armored lighting fixture
US5934786A (en) * 1995-09-21 1999-08-10 O'keefe; Donald L. Sealed lighting unit for clean-rooms and the like
EP1073177A2 (en) * 1999-07-28 2001-01-31 G. BARGELLINI & C. S.p.A. Emergency lighting unit
US6497499B1 (en) 1995-09-22 2002-12-24 Lsi Industries Inc. Luminaire
US6547411B1 (en) 2001-11-16 2003-04-15 Timothy J. Dornbusch Illuminated outlet
US20040001337A1 (en) * 2002-07-01 2004-01-01 Progress Lighting Recessed lighting fixture with battery backup
EP1341404A3 (en) * 2002-02-28 2004-03-31 ARTEMIDE GROUP S.p.A. Fluorescent lighting fixture
US20050007024A1 (en) * 2002-01-30 2005-01-13 Cyberlux Corporation Apparatus and methods for providing an emergency lighting augmentation system
US20050065576A1 (en) * 2003-09-12 2005-03-24 Alain Lamoureux Counterbalancing device for tanning systems
US20070253205A1 (en) * 2005-01-08 2007-11-01 Welker Mark L Fixture
US20080007943A1 (en) * 2005-10-03 2008-01-10 Verfuerth Neal R Modular light fixture with power pack with latching ends
US20080007944A1 (en) * 2005-10-03 2008-01-10 Verfuerth Neal R Modular light fixture with power pack and radiative, conductive, and convective cooling
US20080080162A1 (en) * 2006-09-30 2008-04-03 Ruud Lighting, Inc. LED Light Fixture with Uninterruptible Power Supply
US20090006534A1 (en) * 2007-06-29 2009-01-01 Microsoft Corporation Unified Provisioning of Physical and Virtual Images
US20090009989A1 (en) * 2005-10-03 2009-01-08 Orion Energy Systems, Inc. Modular light fixture with power pack and deployable sensor
US20090147507A1 (en) * 2005-10-03 2009-06-11 Orion Energy Systems, Inc. Modular light fixture with power pack
WO2010009781A1 (en) * 2008-07-24 2010-01-28 Tridonicatco Gmbh & Co. Kg Emergency light unit
US8622584B2 (en) 2008-04-04 2014-01-07 Cree, Inc. LED light fixture
US8702268B1 (en) * 2012-05-18 2014-04-22 Hamid Rashidi 2×4 dawn light volumetric fixture
US8702264B1 (en) * 2011-11-08 2014-04-22 Hamid Rashidi 2×2 dawn light volumetric fixture
US8858018B2 (en) 2005-10-03 2014-10-14 Orion Energy Systems, Inc. Modular light fixture with power pack
US8960962B2 (en) 2012-10-01 2015-02-24 Abl Ip Holding Llc Ceiling mount fixture
US9028087B2 (en) 2006-09-30 2015-05-12 Cree, Inc. LED light fixture
US9039223B2 (en) 2006-09-30 2015-05-26 Cree, Inc. LED lighting fixture
US9212811B2 (en) 2011-05-05 2015-12-15 Cree, Inc. Lighting fixture with flow-through cooling
US9273833B2 (en) 2013-11-01 2016-03-01 Cree, Inc. LED light fixtures with arrangement for electrical connection
USD756016S1 (en) 2014-02-28 2016-05-10 Ip Holdings, Llc Horticulture grow light housing
USD757327S1 (en) 2014-12-12 2016-05-24 Ip Holdings, Llc Fluorescent light fixture
USD757325S1 (en) 2014-07-11 2016-05-24 Ip Holdings, Llc Light fixture
USD757326S1 (en) 2014-07-11 2016-05-24 Ip Holdings, Llc Fluorescent light fixture
USD770671S1 (en) 2015-09-03 2016-11-01 Ip Holdings, Llc Horticulture grow light
US9541246B2 (en) 2006-09-30 2017-01-10 Cree, Inc. Aerodynamic LED light fixture

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504381A (en) * 1948-03-05 1950-04-18 Cons Vultee Aircraft Corp Pressure operated switch
US3118620A (en) * 1960-08-31 1964-01-21 Curtis Electro Lighting Inc Fluorescent lighting fixture
US3636404A (en) * 1969-11-10 1972-01-18 Arthur I Appleton Emergency light circuit for mercury vapor lamps
US3659179A (en) * 1969-06-11 1972-04-25 Bardic Systems Ltd Emergency electric lighting units
US3688123A (en) * 1971-03-17 1972-08-29 Westinghouse Electric Corp Emergency fluorescent lighting apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504381A (en) * 1948-03-05 1950-04-18 Cons Vultee Aircraft Corp Pressure operated switch
US3118620A (en) * 1960-08-31 1964-01-21 Curtis Electro Lighting Inc Fluorescent lighting fixture
US3659179A (en) * 1969-06-11 1972-04-25 Bardic Systems Ltd Emergency electric lighting units
US3636404A (en) * 1969-11-10 1972-01-18 Arthur I Appleton Emergency light circuit for mercury vapor lamps
US3688123A (en) * 1971-03-17 1972-08-29 Westinghouse Electric Corp Emergency fluorescent lighting apparatus

Cited By (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071749A (en) * 1976-07-22 1978-01-31 Tork, Inc. Self-contained maintenance-free emergency lighting
US4216410A (en) * 1977-11-16 1980-08-05 Feldstein Robert S Emergency lighting system
US4287456A (en) * 1979-12-06 1981-09-01 Alert Safety Lite Products Company Portable fluorescent tube assembly having low voltage convenience outlet
US4374406A (en) * 1981-07-10 1983-02-15 James Hepp Lightweight attachment for solar cell array next to a fluorescent tube
US4704664A (en) * 1983-03-25 1987-11-03 Scientific Component System, Inc. Lamp apparatus
US4520436A (en) * 1983-03-25 1985-05-28 Nrg Inc. Mn Lamp apparatus
US4922393A (en) * 1983-03-25 1990-05-01 Scientific Component Systems, Inc. Lamp apparatus
US4698733A (en) * 1986-11-05 1987-10-06 Thin-Lite Corporation Clip on stand off wireway cover
US5065294A (en) * 1988-01-22 1991-11-12 Poot Lichtenergie B.V. Fitting for horticultural lighting
GB2215535A (en) * 1988-03-11 1989-09-20 Philips Electronic Associated Discharge lamp lighting system
US4941071A (en) * 1989-02-07 1990-07-10 Steelcase, Inc. Quick mounting arrangement for light fixtures in overhead cabinets and the like
GB2255242A (en) * 1991-04-27 1992-10-28 Graham Wild Emergency lighting system
US5174648A (en) * 1992-02-27 1992-12-29 Holophane Company, Inc. Lighting fixture support assembly
US5174642A (en) * 1992-02-27 1992-12-29 Hollophane Company, Inc. Remote ballast assembly
US5479327A (en) * 1994-10-21 1995-12-26 Chen; Kuo L. Lighting fixture for aquariums
US5757111A (en) * 1995-04-03 1998-05-26 Sato; Giichiro Night light with phosphorescent element
US5934786A (en) * 1995-09-21 1999-08-10 O'keefe; Donald L. Sealed lighting unit for clean-rooms and the like
US6497499B1 (en) 1995-09-22 2002-12-24 Lsi Industries Inc. Luminaire
US5682131A (en) * 1996-04-04 1997-10-28 Gow; Thomas W. Retractable tamper resistant annunciator
US5791764A (en) * 1996-12-13 1998-08-11 Thin-Lite Corporation Fluorescent light fixture with extruded wire way cover mount
US5845988A (en) * 1997-04-28 1998-12-08 Mandall; Michael C. Armored lighting fixture
EP1073177A2 (en) * 1999-07-28 2001-01-31 G. BARGELLINI & C. S.p.A. Emergency lighting unit
EP1073177A3 (en) * 1999-07-28 2002-05-29 G. BARGELLINI & C. S.p.A. Emergency lighting unit
US6547411B1 (en) 2001-11-16 2003-04-15 Timothy J. Dornbusch Illuminated outlet
US20050007024A1 (en) * 2002-01-30 2005-01-13 Cyberlux Corporation Apparatus and methods for providing an emergency lighting augmentation system
US6986589B2 (en) 2002-01-30 2006-01-17 Cyberlux Corporation Apparatus and methods for providing an emergency lighting augmentation system
EP1341404A3 (en) * 2002-02-28 2004-03-31 ARTEMIDE GROUP S.p.A. Fluorescent lighting fixture
US20040001337A1 (en) * 2002-07-01 2004-01-01 Progress Lighting Recessed lighting fixture with battery backup
US7036961B2 (en) * 2002-07-01 2006-05-02 Hubbell Incorporated Recessed lighting fixture with battery backup
US20050065576A1 (en) * 2003-09-12 2005-03-24 Alain Lamoureux Counterbalancing device for tanning systems
US20070253205A1 (en) * 2005-01-08 2007-11-01 Welker Mark L Fixture
US7922351B2 (en) * 2005-01-08 2011-04-12 Welker Mark L Fixture
US8136958B2 (en) 2005-10-03 2012-03-20 Orion Energy Systems, Inc. Modular light fixture with power pack
US9532410B2 (en) 2005-10-03 2016-12-27 Orion Energy Systems, Inc. Modular light fixture with power pack
US20080007943A1 (en) * 2005-10-03 2008-01-10 Verfuerth Neal R Modular light fixture with power pack with latching ends
US20090009989A1 (en) * 2005-10-03 2009-01-08 Orion Energy Systems, Inc. Modular light fixture with power pack and deployable sensor
US20090147507A1 (en) * 2005-10-03 2009-06-11 Orion Energy Systems, Inc. Modular light fixture with power pack
US7628506B2 (en) * 2005-10-03 2009-12-08 Orion Energy Systems, Inc. Modular light fixture with power pack and radiative, conductive, and convective cooling
US20080007944A1 (en) * 2005-10-03 2008-01-10 Verfuerth Neal R Modular light fixture with power pack and radiative, conductive, and convective cooling
US8858018B2 (en) 2005-10-03 2014-10-14 Orion Energy Systems, Inc. Modular light fixture with power pack
US7780310B2 (en) 2005-10-03 2010-08-24 Orion Energy Systems, Inc. Modular light fixture with power pack and deployable sensor
US7784966B2 (en) 2005-10-03 2010-08-31 Orion Energy Systems, Inc. Modular light fixture with power pack with latching ends
US10206251B2 (en) 2005-10-03 2019-02-12 Orion Energy Systems, Inc. Modular light fixture with power pack
US9261270B2 (en) 2006-09-30 2016-02-16 Cree, Inc. LED lighting fixture
US9541246B2 (en) 2006-09-30 2017-01-10 Cree, Inc. Aerodynamic LED light fixture
US9534775B2 (en) 2006-09-30 2017-01-03 Cree, Inc. LED light fixture
US7771087B2 (en) 2006-09-30 2010-08-10 Ruud Lighting, Inc. LED light fixture with uninterruptible power supply
US20080080162A1 (en) * 2006-09-30 2008-04-03 Ruud Lighting, Inc. LED Light Fixture with Uninterruptible Power Supply
US9028087B2 (en) 2006-09-30 2015-05-12 Cree, Inc. LED light fixture
US9039223B2 (en) 2006-09-30 2015-05-26 Cree, Inc. LED lighting fixture
US20090006534A1 (en) * 2007-06-29 2009-01-01 Microsoft Corporation Unified Provisioning of Physical and Virtual Images
US8622584B2 (en) 2008-04-04 2014-01-07 Cree, Inc. LED light fixture
US9039241B2 (en) 2008-04-04 2015-05-26 Cree, Inc. LED light fixture
WO2010009781A1 (en) * 2008-07-24 2010-01-28 Tridonicatco Gmbh & Co. Kg Emergency light unit
US9212811B2 (en) 2011-05-05 2015-12-15 Cree, Inc. Lighting fixture with flow-through cooling
US8702264B1 (en) * 2011-11-08 2014-04-22 Hamid Rashidi 2×2 dawn light volumetric fixture
US8702268B1 (en) * 2012-05-18 2014-04-22 Hamid Rashidi 2×4 dawn light volumetric fixture
US8960962B2 (en) 2012-10-01 2015-02-24 Abl Ip Holding Llc Ceiling mount fixture
US9273833B2 (en) 2013-11-01 2016-03-01 Cree, Inc. LED light fixtures with arrangement for electrical connection
USD791999S1 (en) 2014-02-28 2017-07-11 Ip Holdings, Llc Horticulture grow light housing
USD756016S1 (en) 2014-02-28 2016-05-10 Ip Holdings, Llc Horticulture grow light housing
USD757326S1 (en) 2014-07-11 2016-05-24 Ip Holdings, Llc Fluorescent light fixture
USD757325S1 (en) 2014-07-11 2016-05-24 Ip Holdings, Llc Light fixture
USD785846S1 (en) 2014-12-12 2017-05-02 Ip Holdings, Llc Fluorescent light fixture
USD757327S1 (en) 2014-12-12 2016-05-24 Ip Holdings, Llc Fluorescent light fixture
USD770671S1 (en) 2015-09-03 2016-11-01 Ip Holdings, Llc Horticulture grow light
USD786491S1 (en) 2015-09-03 2017-05-09 Ip Holdings, Llc Horticulture grow light
USD802831S1 (en) 2015-09-03 2017-11-14 Ip Holdings, Llc Horticulture grow light
USD825096S1 (en) 2015-09-03 2018-08-07 Hgci, Inc. Horticulture grow light

Similar Documents

Publication Publication Date Title
US4755913A (en) Light emitting diode assembly installed on the back of an electrical switch wall plate to indicate, in the dark, the location of the switch, or to indicate at any time an electrical circuit is carrying current
US20050135103A1 (en) Apparatus and methods for providing emergency safety lighting
US4001803A (en) Lighting devices
US4600972A (en) Emergency lighting apparatus
AU2003291259B2 (en) Autoilluminating lamp system
US4144462A (en) Emergency lighting fluorescent pack
US5833350A (en) Switch cover plate providing automatic emergency lighting
US7213961B2 (en) Low voltage luminaire assembly
US5459955A (en) Lighting device used in an exit sign
US5713655A (en) Emergency safety light
US6107744A (en) Back-up electrical systems
US6019477A (en) Emergency lighting device
AU2001268676B2 (en) Rechargeable lamp system
CA1059579A (en) Self-contained maintenance-free emergency lighting
US8083392B2 (en) LED light has removable self-power LED unit(s)
US5734229A (en) Back-up electrical system for portable table lamps
US5465198A (en) Combination clock radio, night light and power receptacle
US6010228A (en) Wireless emergency safety light with sensing means for conventional light switch or plug receptacle
CA2087154C (en) Lighting fixture support assembly
EP1845588B1 (en) Electrical installation unit and associated central cover
TW343261B (en) Rechargeable flashlight assembly with nightlight
AU2007211026B2 (en) Battery powered lighting appliance
US4148023A (en) Emergency exit indicator
WO2001061244A1 (en) Light switch cover
US4924246A (en) Energizing system for video cameras and lights using adapter modules

Legal Events

Date Code Title Description
AS Assignment

Owner name: KCS LIGHTING, INC., A CORP OF DE.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:KEENE CORPORATION, A CORP. OF NEW YORK;REEL/FRAME:004474/0438

Effective date: 19840731