Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3832503 A
Publication typeGrant
Publication date27 Aug 1974
Filing date10 Aug 1973
Priority date10 Aug 1973
Publication numberUS 3832503 A, US 3832503A, US-A-3832503, US3832503 A, US3832503A
InventorsCrane R
Original AssigneeKeene Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Two circuit track lighting system
US 3832503 A
Abstract
A device is provided for connecting an electrical fixture to a three-conductor, two-circuit power distribution track. The device includes a housing adapted to be secured to the track containing a fixed contact adapted to engage one conductor and a movable contact adapted to be shifted to a proper position to engage either of the other two conductors. Movement of the second contact is controlled by an indicator which extends outside the housing. The indicator assumes two positions corresponding to the positions of the contact with both positions being readily visible when the device is secured to a track so as to provide a clear indication of the circuit associated with the fixture.
Images(3)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent 11 1 Crane [451 Aug. 27, 1974 [73] Assignee: Keene Corporation. New York,

[22] Filed: Aug. 10, 1973 [21] Appl. No.: 387,387

Roy B. Crane, Wilmington, Mass.

[52] US. Cl. 200/51 R, ZOO/51.07. 339/21 R [51] Int. Cl ..H01r 13/70 [58] Field of Search 339/20-24, 339/119.14;200/51R.51.07

[56] References Cited UNITED STATES PATENTS 3.496.518 2/1970 Neumunn et ul 339/21 R 3.737.834 6/1973 Contrutto 339/21 R Primary E\'uminerDz1vid Smith. Jr.

Attorney, Agent. or FirmDa1simer, Kane, Sullivan & Kurucz Kane 1 5 7 1 ABSTRACT A device is provided for connecting an electrical fixture to a three-conductor, two-circuit power distribution track. The device includes a housing adapted to be secured to the track containing a fixed contact adapted to engage one conductor and a movable contact adapted to be shifted to a proper position to engage either of the other two conductors. Movement of the second contact is controlled by an indicator which extends outside the housing. The indicator assumes two positions corresponding to the positions of the contact with both positions being readily visible when the device is secured to a track so as to provide a clear indication of the circuit associated with the fix- 7 Claims, 6 Drawing Figures TWO CIRCUIT TRACK LIGHTING SYSTEM BACKGROUND OF THE INVENTION The present invention relates to electrical fixtures adapted to receive power from distribution tracks and more particularly to means for connecting a fixture to either of the circuits of a three-conductor, two-circuit track.

In recent years track lighting systems have gained in popularity for both commercial and residential applications. The systems consist basically of a channel-type track, the internal sides of which support elongated conductors which may be tapped at any point along their length by suitable connectors to provide power for fixtures mounted to the track. The fixtures may then be used as spotlights, accent lights or to provide general illumination for an area.

The number of fixtures which can be supported by a track is limited to a large extent by the current which the conductors can carry which generally is not greater than amps. In order to increase the track capacity electrical load, it has been suggested that a second circuit, in the form of a second power conductor be introduced into the track and various schemes have developed to enable a fixture to be connected to either of the two circuits (see for example, US. Pat. Nos. 3,496,518, 3,559.l46 and 3,613,045). In these arrangements, the power conductors are positioned on one side of the channel vertically spaced apart from each other and a common neutral return conductor is provided on the other side of the channel.

Since the two power conductors are vertically separated from each other, the associated connector requires a vertically shiftable contact which can be positioned to make electrical connection with either power conductor as required. To this end, the prior art suggests various shim arrangements designed to maintain the shiftable contact in the desired raised or lowered position. Because all the electrical interconnections between the conductors and fixture connector are made within the track channel, a major problem with such prior art connectors is that once installed, there is no way to readily determine which circuit a particular fixture is connected to. This poses both maintenance and safety problems. This is especially so where one of the power leads carries a relatively low power audio signal for speaker fixtures which may be mounted to the track and the other carries power to light fixtures mounted to the same track.

In view of the above, the principal object of the present invention is to provide an improved threeconductor, two-circuit track connector which may readily be shifted between circuits and which, when in position. gives ready, visible indication of the circuit to which an associated fixture is connected.

SUMMARY OF THE INVENTION The above and other beneficial objects and advantages are attained in accordance with the present invention by providing an improved connector adapted to connect an electrical fixture to a three-conductor track of the type having two opposed sides with a first conductor extending longitudinally along one side and the second and third conductors spaced vertically apart from each other extending along the opposite side. The connector comprises a housing having means thereon for securing the connector to the track in locking engagement. A first contact extends from the housing adapted to engage the first conductor when the housing is locked in position. A second, vertically shiftable contact also extends from the housing. The second contact is shiftable between a first position for engagement with the second conductor and a second position for engagement with the third conductor when the housing is in locked position. Means are provided for shifting the second contact between positions and indicator means in controlling relationship with the shifting means are provided. The indicator means assumes a first, clearly visible position when the second contact is in its first position and a second, clearly visible position when the contact is in its second position.

BRIEF DESCRIPTION OF THE DRAWINGS In the accompanying drawings:

FIG. 1 is a fragmentary perspective environmental view of a track lighting system incorporating the improvement of the present invention;

FIG. 2 is a perspective view of the improved connector of the present invention;

FIG. 3 is a fragmentary sectional view taken along reference lines 33 of FIG. 2 in the direction indicated by the arrows shown with an associated track which is also in section;

FIG. 4 is a sectional view taken along reference lines 4-4 of FIG. 3 in the direction indicated by the arrows;

FIG. 5 is a fragmentary sectional view taken along reference lines 5-5 of FIG. 2 in the direction indicated by the arrows; and,

FIG. 6 is a sectional view taken along reference lines 66 of FIG. 3 in the direction indicated by the arrows.

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, in FIG. 1 there is shown a track lighting system 10 installed on a wall or ceiling 12. The system comprises an elongated track 14 secured to the ceiling by suitable bolts 16 and capped at its ends by closures 18.

Referring briefly to FIG. 3, it will be noted that track 14 is formed with a series of internal flanges. Accordingly, on one side 20 of track 14 the internal flanges support an insulator 22 which in turn carries a single conductor 24. On the opposite side 26 of track 14 the flanges support insulator 28 which in turn carries a pair of conductors 30 and 32 spaced vertically apart from each other. The two conductors 30 and 32 may be connected to separate power supply circuits or, one of the circuits may be used to carry power to light fixtures while the other circuit carries audio signals to appropriate speakers. The single conductor 24 provides a common neutral return for both active conductors 30 and 32. The present invention is particularly adapted to the latter arrangement since any inadvertent connection of a speaker to a power line could cause irreparable damage to the speaker. The three conductors 24, 30 and 32 extend along substantially the entire length of the track permitting contact to be made at any point along their length.

The track 14 further includes internal flanges 34 (a and b) and 36 (a and b) which cooperate with mating parts 38 and 40 of a connector 42 to secure the connector to the track in locking engagement. The distance between flanges 34a and 34b differs from that between 36a and 36b as do the corresponding dimensions of mating parts 38 and 40 so that the connector is polarized in the manner in which it may be mounted to the track. That is, mating part 40 only fits between flanges 36a and 36b and will not fit between flanges 34a and 34b.

Referring to FIGS. 1 and 2, the connector device 42 is shown comprising an elongated housing 44 having a bottom opening 46 to receive a suitable fastener to se' cure a fixture 48 andthrough which a power lead can pass and a side opening 47 for a toggle switch. A locking tongue 52 extends from the top surface 54 of the housing. The tongue 52 is dimensioned to fit between the bottom flanges 34b and 36b of the track and serves to prevent rotation of the housing once in position. As shown in FIG. 5, a tab 56, which extends outside the housing is connected to the tongue and permits the tongue to be retracted into the housing during installation whereafter a biasing spring 58 serves to urge the tongue outwardly to lock in position between the bottom track flanges and thereby lock connector 42 in position.

As also shown in FIG. 2, the mating parts 38 and 40 of the connector extend radially outwardly from opposite sides of a central shaft 60 which in turn extends up wardly through the top surface 54 f the housing. The center of shaft 60 is hollow thereby providing access to the interior of the housing. A pair of contacts 62 and 64 extend outwardly from the opening in the top of the shaft. Each of the contacts has a 90 bend adjacent the top end thereof defining top portions extending parallel to mating parts 38 and 40 and away from each other. Accordingly, contact 62 top portion 66 extends radially outwardly parallel to part 38 and contact 64 top portion 68 extends radially outwardly parallel to part 40. Contact 62 is coupled through connector 57 to wire 59 which along with a similar wire (not shown) connected to contact 64 comprises the power lead 50 which feeds fixture 48 from conductors 24 and 30 or 32.

Still referring to H6. 3, it can be seen that contact 62 is provided with a dimple 63 which fits in a recess 65 on the inside wall of shaft 60. This serves to fix the contact with respect to the shaft. It should also be noted that the top portion 66 of Contact 62 is designed to make electrical contact with conductor 24 when the connector is in position. Contact 64 is fixed to an elongated rod 72 positioned for movement within the base ofshaft 60. To this end. rod 72 is formed with a longitudinal slit extending downwardly from its top end and the body portion of Contact 64 is positioned in the slit. A stake 70 is formed in the contact which engages a recess 71 in rod 72 and thus firmly secures contact 64 to the rod. The top end 68 of contact 64 is bent over the top of the rod extending away from contact 64 and designed to make contact with conductors 30 or 32 as will be described forthwith. Rod 72 is formed of a plastic insulating material and thus serves to provide insulation between the contacts over their entire lengths.

As stated, rod 72 is disposed for vertical movement within the housing with its top end adapted to extend through the opening in the top of the shaft. When the rod is in its raised position and the connector is secured to a track. contact 64 top portion 68 is in position to make electrical contact with the upper conductor 32 of the track as shown in solid line in F IG. 3. When the rod is in its lowered position, the top portion of the contact is in position to make electrical contact with the lower conductor 30 of the track as shown in phantom in F IG. 3. In both positions, rod 72 fully insulates the contacts 62 and 64 from each other.

Rod 72 is formed with an integral tab 74 which extends out horizontally. The tab 74 rides in a slot 76 provided in a horizontally shiftable indicator bar 78 the end sections 80 and 82 of which are adapted to pass through openings 81 and 83 in the ends 84 and 86 respectively of housing 44 as shown in FIGS. 1, 2 and 6. Referring to FIG. 4, it can be seen that the slot 76 of bar 78 includes an inclined portion 88 the height and depth of which are such as to be able to receive tab 74. Bar 78 is constrained to horizontal movement by the housing top surface 54 in combination with the surfaces of housing ends 84 and 86 surrounding-openings 81 and 83. In addition, a ferule 90 secured in position by screw 92 helps maintain alignment of bar 78 and keeps tab 74 captive in slot 76 by limiting horizontal movement of the bar. Screw 92 further cooperates with screw 94 in securing the top surface 54 of the housing in position.

Since tab 74 is captive in slot 76, as bar 78 is shifted back and forth, the tab will ride up and down inclined portion 88 of the slot following the incline of the slot which serves as a cam. This movement of the tab causes a vertical movement of the connected plastic part 72 and the attached contact 64. The slot is suitably inclined so that the vertical movement of rod 72 corresponds to the vertical distance between conductors 30 and 32. Thus, the horizontal position of bar 78 determines the vertical position of rod 72 and hence determines which of the vertically spaced conductors 30 or 32 will be contacted by the top portion 68 of contact 64.

The bar is dimensioned and the inclined portion of slot 88 is positioned so that a portion of bar 78 extends out of one end of the housing only when the contact 64 is in its fully raised position and the bar extends out of the other end of the housing only when the contact is in its fully lowered position. Further, since the connector 42 is polarized in the manner described before to fit into the track in a particular orientation, the position of bar 78 and more specifically a determination of which end 80 or 82 extends from the housing is indicative of which of the conductors 30 or 32 is electrically connected to contact 64 and hence which circuit is feeding the associated fixture. If desired, the ends of bar 78 may be color coded and elongated to facilitate visual determination of the active circuit.

Thus, in accordance with the above, the aforementioned objectives are effectively attained.

Having thus described the invention, what is claimed l. A device adapted to connect an electrical fixture to a three-conductor track of the type having two opposed sides with a first conductor extending longitudinally along one side and second and third conductors spaced vertically apart from each other extending along the opposite side. said device comprising: a housing; means on said housing for mechanically securing said device to said track; a first contact extending from said housing adapted to engage said first conductor when said housing is in said secured position; a second contact extending from said housing, said second contact being vertically shiftable between a first position for engagement with said second conductor and a second position for engagement with said third conductor; means for switching said second contact between positions; and indicator means extending from said housing in control relationship with said switching means, said indicator means assuming a first indicator position when said second contact is in its first position and a second indicator position when said second contact is in its second position, both of said indicator positions being readily visible when said housing is locked to said track.

2. The invention in accordance with claim 1 wherein said second contact is constrained to vertical movement within said housing, said indicator means comprises a bar disposed for horizontal movement through said housing, and said switching means comprises cooperating means coupled to said second contact and horizontal bar for translating horizontal movement of said bar to vertical movement of said contact.

3. The invention in accordance with claim 2 wherein said translating means comprises a cam mounted to one of said bar or second contact and a follower mounted to the otherof said bar or second contact.

4. The invention in accordance with claim 3 further comprising a rod coupled to said second contact and adapted to move therewith, said rod being interposed between and insulating said first and second contacts from one another.

5. The invention in accordance with claim 4 wherein said cam comprises an inclined slot carried by said bar and said follower comprises a tab extending from said rod and constrained to ride in said slot.

6. The invention in accordance with claim 2 wherein said bar has a first end section adapted to extend through one end of said housing only whensecond contact is in its first position and an opposite end section adapted to extend through an opposite end of said housing only when said second contact is in its second position.

7. The invention in accordance with claim 6 wherein said bar end sections are color coded.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3496518 *15 Mar 196817 Feb 1970Lightolier IncElectrical power distribution systems
US3737834 *20 Sep 19715 Jun 1973Us Industries IncAdapter for three conductor electrical power distribution track
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3894781 *26 Jun 197415 Jul 1975Lightolier IncConnector plug for power distribution track
US3980368 *23 Apr 197514 Sep 1976Mcgraw-Edison CompanyAdapter for power distribution system
US4181388 *15 Aug 19781 Jan 1980Lightolier IncorporatedTap member with axially adjustable contact for multi-conductor electrical track
US4533190 *9 Dec 19836 Aug 1985Booty Donald JElectrical power track system
US4563050 *13 Jul 19847 Jan 1986Thomas & Betts CorporationDevice for flat multiconductor cable connection
US4618203 *8 Apr 198521 Oct 1986Thomas & Betts CorporationIsolated ground device for flat undercarpet cable
US4666223 *4 Sep 198519 May 1987Haworth, Inc.Switchable receptacle unit
US4671585 *16 Jun 19869 Jun 1987National Service IndustriesLuminaire adaptor assembly
US4688154 *15 Oct 198418 Aug 1987Nilssen Ole KTrack lighting system with plug-in adapters
US4699439 *10 Apr 198613 Oct 1987Prescolite, Inc.Track lighting adapter
US4717357 *20 Jun 19865 Jan 1988Thomas & Betts CorporationSystem and method for electrical power installation
US4778397 *29 Aug 198618 Oct 1988U.S. Philips Corp.Track lighting system and connecting plug with sliding lock
US4781609 *8 Sep 19861 Nov 1988Haworth, Inc.Wall system with multicircuit electrical system
US4845601 *17 Sep 19874 Jul 1989Display Lighting SystemsIllumination/ventilation system and track light fixture
US5096431 *28 Nov 199017 Mar 1992Byrne Norman ROutlet receptable with rearrangeable terminals
US5855485 *16 Jan 19975 Jan 1999Patti; Anthony G.Multiple track adapter for track lighting systems
US634086827 Jul 200022 Jan 2002Color Kinetics IncorporatedIllumination components
US652895417 Dec 19984 Mar 2003Color Kinetics IncorporatedSmart light bulb
US657708022 Mar 200110 Jun 2003Color Kinetics IncorporatedLighting entertainment system
US660845330 May 200119 Aug 2003Color Kinetics IncorporatedMethods and apparatus for controlling devices in a networked lighting system
US662459731 Aug 200123 Sep 2003Color Kinetics, Inc.Systems and methods for providing illumination in machine vision systems
US668997421 Feb 200210 Feb 2004Hickory Springs Manufacturing Co.Pressure switch for motorized chairs
US671737620 Nov 20016 Apr 2004Color Kinetics, IncorporatedAutomotive information systems
US6720745 *17 Dec 199813 Apr 2004Color Kinetics, IncorporatedData delivery track
US672273621 Feb 200220 Apr 2004Hickory Springs Manufacturing CompanyMovable switch for a motorized recliner
US677458425 Oct 200110 Aug 2004Color Kinetics, IncorporatedMethods and apparatus for sensor responsive illumination of liquids
US677789130 May 200217 Aug 2004Color Kinetics, IncorporatedMethods and apparatus for controlling devices in a networked lighting system
US678132925 Oct 200124 Aug 2004Color Kinetics IncorporatedMethods and apparatus for illumination of liquids
US680100310 May 20025 Oct 2004Color Kinetics, IncorporatedSystems and methods for synchronizing lighting effects
US686920425 Oct 200122 Mar 2005Color Kinetics IncorporatedLight fixtures for illumination of liquids
US688832227 Jul 20013 May 2005Color Kinetics IncorporatedSystems and methods for color changing device and enclosure
US689762420 Nov 200124 May 2005Color Kinetics, IncorporatedPackaged information systems
US693697825 Oct 200130 Aug 2005Color Kinetics IncorporatedMethods and apparatus for remotely controlled illumination of liquids
US696520517 Sep 200215 Nov 2005Color Kinetics IncorporatedLight emitting diode based products
US696744825 Oct 200122 Nov 2005Color Kinetics, IncorporatedMethods and apparatus for controlling illumination
US697507917 Jun 200213 Dec 2005Color Kinetics IncorporatedSystems and methods for controlling illumination sources
US6994571 *17 Mar 20047 Feb 2006Erco Leuchten GmbhCurrent-rail adapter
US703192026 Jul 200118 Apr 2006Color Kinetics IncorporatedLighting control using speech recognition
US703839817 Dec 19982 May 2006Color Kinetics, IncorporatedKinetic illumination system and methods
US70383999 May 20032 May 2006Color Kinetics IncorporatedMethods and apparatus for providing power to lighting devices
US704217217 Sep 20039 May 2006Color Kinetics IncorporatedSystems and methods for providing illumination in machine vision systems
US706449813 Mar 200120 Jun 2006Color Kinetics IncorporatedLight-emitting diode based products
US713280430 Oct 20037 Nov 2006Color Kinetics IncorporatedData delivery track
US713582411 Aug 200414 Nov 2006Color Kinetics IncorporatedSystems and methods for controlling illumination sources
US71613114 Nov 20039 Jan 2007Color Kinetics IncorporatedMulticolored LED lighting method and apparatus
US71789415 May 200420 Feb 2007Color Kinetics IncorporatedLighting methods and systems
US718600313 Mar 20016 Mar 2007Color Kinetics IncorporatedLight-emitting diode based products
US718714116 Jul 20046 Mar 2007Color Kinetics IncorporatedMethods and apparatus for illumination of liquids
US72026136 Feb 200310 Apr 2007Color Kinetics IncorporatedControlled lighting methods and apparatus
US722110430 May 200222 May 2007Color Kinetics IncorporatedLinear lighting apparatus and methods
US72310605 Jun 200212 Jun 2007Color Kinetics IncorporatedSystems and methods of generating control signals
US724215213 Jun 200210 Jul 2007Color Kinetics IncorporatedSystems and methods of controlling light systems
US72482396 Aug 200424 Jul 2007Color Kinetics IncorporatedSystems and methods for color changing device and enclosure
US725356610 May 20047 Aug 2007Color Kinetics IncorporatedMethods and apparatus for controlling devices in a networked lighting system
US727416026 Mar 200425 Sep 2007Color Kinetics IncorporatedMulticolored lighting method and apparatus
US73001923 Oct 200327 Nov 2007Color Kinetics IncorporatedMethods and apparatus for illuminating environments
US73033005 Sep 20034 Dec 2007Color Kinetics IncorporatedMethods and systems for illuminating household products
US730829626 Sep 200211 Dec 2007Color Kinetics IncorporatedPrecision illumination methods and systems
US730996514 Feb 200318 Dec 2007Color Kinetics IncorporatedUniversal lighting network methods and systems
US735213818 Apr 20061 Apr 2008Philips Solid-State Lighting Solutions, Inc.Methods and apparatus for providing power to lighting devices
US735233915 Jun 19991 Apr 2008Philips Solid-State Lighting SolutionsDiffuse illumination systems and methods
US735867931 Mar 200515 Apr 2008Philips Solid-State Lighting Solutions, Inc.Dimmable LED-based MR16 lighting apparatus and methods
US738535920 Nov 200110 Jun 2008Philips Solid-State Lighting Solutions, Inc.Information systems
US739738411 Feb 20058 Jul 2008Genlyte Thomas Group, LlcTrack lighting system current limiting device
US742784014 May 200423 Sep 2008Philips Solid-State Lighting Solutions, Inc.Methods and apparatus for controlling illumination
US744984711 Aug 200411 Nov 2008Philips Solid-State Lighting Solutions, Inc.Systems and methods for synchronizing lighting effects
US745321716 Nov 200418 Nov 2008Philips Solid-State Lighting Solutions, Inc.Marketplace illumination methods and apparatus
US746299710 Jul 20079 Dec 2008Philips Solid-State Lighting Solutions, Inc.Multicolored LED lighting method and apparatus
US748276425 Oct 200127 Jan 2009Philips Solid-State Lighting Solutions, Inc.Light sources for illumination of liquids
US750700530 Jan 200724 Mar 2009Genlyte Thomas Group LlcSliding flexible track lighting
US752076329 Jun 200721 Apr 2009Genlyte Thomas Group LlcTrack lighting system with dependent lamp cord
US75252543 Nov 200428 Apr 2009Philips Solid-State Lighting Solutions, Inc.Vehicle lighting methods and apparatus
US755093115 Mar 200723 Jun 2009Philips Solid-State Lighting Solutions, Inc.Controlled lighting methods and apparatus
US757202822 Jan 200711 Aug 2009Philips Solid-State Lighting Solutions, Inc.Methods and apparatus for generating and modulating white light illumination conditions
US759868112 Jun 20076 Oct 2009Philips Solid-State Lighting Solutions, Inc.Methods and apparatus for controlling devices in a networked lighting system
US759868412 Jun 20076 Oct 2009Philips Solid-State Lighting Solutions, Inc.Methods and apparatus for controlling devices in a networked lighting system
US759868626 Apr 20076 Oct 2009Philips Solid-State Lighting Solutions, Inc.Organic light emitting diode methods and apparatus
US764273018 Dec 20075 Jan 2010Philips Solid-State Lighting Solutions, Inc.Methods and apparatus for conveying information via color of light
US76524363 Dec 200726 Jan 2010Philips Solid-State Lighting Solutions, Inc.Methods and systems for illuminating household products
US76596741 May 20079 Feb 2010Philips Solid-State Lighting Solutions, Inc.Wireless lighting control methods and apparatus
US77583585 May 200820 Jul 2010Koninklijke Philips Electronics N.V.Track lighting assembly
US776402623 Oct 200127 Jul 2010Philips Solid-State Lighting Solutions, Inc.Systems and methods for digital entertainment
US784582330 Sep 20047 Dec 2010Philips Solid-State Lighting Solutions, Inc.Controlled lighting methods and apparatus
US791135126 Jun 200822 Mar 2011Genlyte Thomas Group LlcTrack lighting system current limiting device
US792697516 Mar 201019 Apr 2011Altair Engineering, Inc.Light distribution using a light emitting diode assembly
US793856224 Oct 200810 May 2011Altair Engineering, Inc.Lighting including integral communication apparatus
US794672931 Jul 200824 May 2011Altair Engineering, Inc.Fluorescent tube replacement having longitudinally oriented LEDs
US795932022 Jan 200714 Jun 2011Philips Solid-State Lighting Solutions, Inc.Methods and apparatus for generating and modulating white light illumination conditions
US79761969 Jul 200812 Jul 2011Altair Engineering, Inc.Method of forming LED-based light and resulting LED-based light
US811844720 Dec 200721 Feb 2012Altair Engineering, Inc.LED lighting apparatus with swivel connection
US814402511 Feb 201127 Mar 2012Genlyte Thomas Group LlcTrack lighting system current limiting device
US82078218 Feb 200726 Jun 2012Philips Solid-State Lighting Solutions, Inc.Lighting methods and systems
US82140842 Oct 20093 Jul 2012Ilumisys, Inc.Integration of LED lighting with building controls
US82515445 Jan 201128 Aug 2012Ilumisys, Inc.Lighting including integral communication apparatus
US825692415 Sep 20084 Sep 2012Ilumisys, Inc.LED-based light having rapidly oscillating LEDs
US82996951 Jun 201030 Oct 2012Ilumisys, Inc.Screw-in LED bulb comprising a base having outwardly projecting nodes
US83248172 Oct 20094 Dec 2012Ilumisys, Inc.Light and light sensor
US833038112 May 201011 Dec 2012Ilumisys, Inc.Electronic circuit for DC conversion of fluorescent lighting ballast
US836059923 May 200829 Jan 2013Ilumisys, Inc.Electric shock resistant L.E.D. based light
US836271019 Jan 201029 Jan 2013Ilumisys, Inc.Direct AC-to-DC converter for passive component minimization and universal operation of LED arrays
US842096228 Jun 201016 Apr 2013Cooper Technologies CompanyVented electrcal enclosure with operation handle
US842136623 Jun 201016 Apr 2013Ilumisys, Inc.Illumination device including LEDs and a switching power control system
US84442925 Oct 200921 May 2013Ilumisys, Inc.End cap substitute for LED-based tube replacement light
US845419330 Jun 20114 Jun 2013Ilumisys, Inc.Independent modules for LED fluorescent light tube replacement
US852339428 Oct 20113 Sep 2013Ilumisys, Inc.Mechanisms for reducing risk of shock during installation of light tube
US854040125 Mar 201124 Sep 2013Ilumisys, Inc.LED bulb with internal heat dissipating structures
US854195825 Mar 201124 Sep 2013Ilumisys, Inc.LED light with thermoelectric generator
US855645214 Jan 201015 Oct 2013Ilumisys, Inc.LED lens
US859681311 Jul 20113 Dec 2013Ilumisys, Inc.Circuit board mount for LED light tube
US865398424 Oct 200818 Feb 2014Ilumisys, Inc.Integration of LED lighting control with emergency notification systems
US866488019 Jan 20104 Mar 2014Ilumisys, Inc.Ballast/line detection circuit for fluorescent replacement lamps
US86746262 Sep 200818 Mar 2014Ilumisys, Inc.LED lamp failure alerting system
US880778516 Jan 201319 Aug 2014Ilumisys, Inc.Electric shock resistant L.E.D. based light
US884028220 Sep 201323 Sep 2014Ilumisys, Inc.LED bulb with internal heat dissipating structures
US20080002415 *26 Jun 20073 Jan 2008Polycadform E.K.Fastening device with swivel base
US20140085889 *24 Sep 201227 Mar 2014Abl Ip Holding LlcTrack adapter and lighting fixture
EP0174733A2 *8 Aug 198519 Mar 1986Haworth, Inc.Wall system with multicircuit electrical system
EP0212015A2 *8 Aug 19854 Mar 1987Haworth, Inc.Switchable receptacle unit
EP1956291A1 *16 Feb 200613 Aug 2008Antares Iluminacion, S.A.Suspended projector
EP2087561A2 *17 Oct 200712 Aug 2009Armstrong World Industries, Inc.Electrified ceiling framework underside connectors
WO2008048676A217 Oct 200724 Apr 2008Armstrong World Ind IncElectrified ceiling framework underside connectors
Classifications
U.S. Classification200/51.00R, 439/110, 200/51.7
International ClassificationH01R25/00, F21V21/34, H01R25/14
Cooperative ClassificationF21V21/34, H01R25/142
European ClassificationF21V21/34, H01R25/14B
Legal Events
DateCodeEventDescription
7 Nov 1985ASAssignment
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