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Publication numberUS3352071 A
Publication typeGrant
Publication dateNov 14, 1967
Filing dateMar 8, 1965
Priority dateMar 8, 1965
Publication numberUS 3352071 A, US 3352071A, US-A-3352071, US3352071 A, US3352071A
InventorsSutter Ormond S
Original AssigneeLock Products Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Fixture for use in a suspended grid ceiling system
US 3352071 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

Nov. 14, 19 67 0. s. SUTTER 3,352,071

FIXTURE FOR USE IN A SUSPENDED GRID CEILING SYSTEM Filed March 8, 1965 2 Sheets- Sheet 1 oat aw 3 50776-2 INVENTOR.

Nov. 14, 1967 o. s. SUTTER 3,352,071

FIXTURE FOR USE IN A SUSPENDED GRID CEILING SYSTEM v Filed March 8, 1965 2 Sheets-Sheet 2 az/w/l/fi 5'. 30722? INVENTOR.

BY Kiwi United States Patent M 3,352,071 FIXTURE FOR USE IN A SUSPENDED GRID CEILING SYSTEM Ormond S. Sutter, Placentia, Califi, assignor to Lok- Products (30., Fullerton, Califl, a corporation of California Filed Mar. 8, 1965, Ser. No. 437,957

Claims. (CI. 52-28) ABSTRACT OF THE DISCLOSURE An improved fixture for use in a suspended grid ceiling system having an end cap supporting the ends of a diffuser with locking means adapted to projecting through transverse runners to secure the end cap in place supporting the end of the diffuser.

This invention relates to an improved fixture for use in a suspended grid ceiling system.

According to the present invention, a light fixture is provided that is readily mounted in a suspended grid ceiling and which requires minimum modification of a conventional suspenuded grid ceiling. This is accomplished by providing the fixture with a diffuser which is supported by end caps at each end of the fixture, which end caps are provided with locking means for cooperating with slots formed in the cross runners of the ceiling.

It is an object of this invention to provide a fixture which readily and easily is supported in a suspended grid ceiling.

A further object of this invention is to provide such a fixture which requires minimum modification of a standard suspended grid ceiling.

Still a further object is to provide a fixture which is assembled in a novel manner.

Other objects and advantages will be readily apparent from the following description.

In the drawings:

FIGURE 1 is a fragmentary perspective with parts broken away.

FIGURE 2 is a diagrammatic view of the bracket clip.

FIGURE 3 is a perspective of a portion of the end cap.

FIGURE 4 is a perspective of a portion of a modified cross runner.

FIGURE 5 is a fragmentary perspecitve of the components.

Suspended grid ceilings of the type having longitudinal T-shaped runners and T-shaped cross runners 12 are well known in the art. The grid thus formed is suspended by wires 14 from the ceiling of a room in a manner well known and acoustical tiles 16 are supported on the flanges of runners 10 and 12. Clips 18 are utilized to interlock abutting cross runners 10.

This invention is directed to a light fixture for such a ceiling. A light diffuser 19 has longitudinal flanges 20 along the sides thereof which rest on the opposed flanges 22 of adjacent longitudinal runners 10. An end cap 24 fits over each end of the diffuser and has a flange 26 forming a support therefor, and an upwardly projecting tab 28 having an inwardly projecting locking protuberance 30 thereon.

A modified cross runner 12 has a slot 32 which receives tab 28 and a protuberance 34 which engages protuberance 30 in interlocking relationship, thereby anehor ing the cap 24 and hence the end of diffuser 18 to the ceiling grid.

A reflector 36 formed of aluminum or other suitable 3,352,071 Patented Nov. 14, 1967 material has downwardly turned longitudinal flanges 38 which are supported also upon flanges 22 of longitudinal runners 10.

A wireway 40 is formed of an open top channel enclosed by a cover 42 and an end plate 44 and having a lamp box holder 45 in either end. The wireway 40 carries at least one, and preferably one adjacent each extremity, support bracket 46 welded or otherwise affixed thereto. At each extremity of the support bracket a spring clip 48 is provided which snaps over the upper enlarged head of the longitudinal T-shaped runner 10 holding the wireway in place.

The reflector at each extremity has a notch cut therein to permit the lamp holder box 45 to pass therethrough and lamp socket 50 to project below reflector 36 and support lamp 52 within the fixture.

While what hereinbefore has been described as the preferred embodiment of this invention, it is readily apparent that alterations and modifications can be resorted to without departing from the scope of this invention, and such alterations and modifications are intended to be included within the scope of the appended claims.

I claim:

1. In a suspended grid ceiling system of the type having longitudinal flanged runners and cross flanged runners the combination of a diffuser supported upon the opposed flanges of a pair of longitudinal runners, an end cap fitting over and supporting an end of said diffuser, means forming a slot in one cross runner, a tab on said end cap projecting through said slot, locking means releasably interlocking said tab and last-mentioned cross runner. I

2. In a suspended grid ceiling system of the type having longitudinal flanged runners and cross flanged runners the combination of a diffuser, an end cap fitting over and supporting an end of said diffuser, means forming a slot in one cross runner, a tab on said end cap projecting through said slot, locking means releasably interlocking said tab and last-mentioned cross runner.

3. In a suspended grid ceiling system of the type having longitudinal flanged runners and cross flanged runners the combination of a diffuser, an end cap fitting over and supporting an end of said diffuser, means forming a slot in one cross runner, a tab on said end cap projecting through said slot, locking means releasably interlocking said tab and last-mentioned cross runner, a reflector supported upon the opposed flanges of said longitudinal runners, a wireway, at least one support bracket overlying said reflector, spring clips at each extremity of said bracket releasably engaging said last-mentioned longitudinal runners, said wireway being secured to said support bracket.

4. In a suspended grid ceiling system of the type having longitudinal flanged runners and cross flanged runners the combination of a diffuser supported upon the opposed flanges of a pair of longitudinal runners, an end cap fitting over and supporting an end of said diffuser, means forming a slot in one cross runner, a tab on said end cap projecting through said slot, locking means releasably interlocking said tab and last-mentioned cross runner, a reflector supported upon the opposed flanges of said longitudinal runners, a wireway, at least one support bracket overlying said reflector, spring clips at each extremity of said bracket releasably engaging said lastmentioned longitudinal runners, said wireway being secured to said support bracket.

5. In a suspended grid ceiling system of the type having longitudinal flanged runners and cross flanged runners the combination of a diffuser supported upon the opposed flanges of a pair of longitudinal runners, an end cap fitting over and supporting an end of said diffuser, means forming a slot in one cross runner, a tab on said end cap projecting through said slot, locking means releasably interlocking said tab and last-mentioned cross runner, a reflector supported upon the opposed flanges of said longitudinal runners, at wireway, at least one support bracket overlying said reflector, spring clips at each extremity of said bracket releasably engaging said lastmentioned longitudinal runners, said wireway being secured to said support bracket, said reflectors having openings therethrough, said wireway being adapted to carry lamp sockets projecting through said openings.

References Cited UNITED STATES PATENTS 1,707,829 4/1929 Wagner 248-3l1 X 3,085,152 4/1963 Schwartz 52484 X 3,209,140 9/ 1965 Nieder-Westerrnann 240-9 X FOREIGN PATENTS 813,215 5/1959 Great Britain.

HENRY C. SUTHERLAND, Primary Examiner.

FRANK L. ABBOTT, Examiner.

G. W. HORNADAY, Assistant Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1707829 *Oct 24, 1927Apr 2, 1929Pittsburgh Valve And FittingsLighting fixture
US3085152 *Sep 2, 1958Apr 9, 1963Lindheim Stephen WLighting fixture with ceiling panel supporting element
US3209140 *Jan 14, 1963Sep 28, 1965Westinghouse Electric CorpLuminaire
GB813215A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3426188 *Nov 3, 1966Feb 4, 1969Integrated Systems IncFixture for use in a suspended grid ceiling system
US3512313 *Oct 14, 1968May 19, 1970Owens Corning Fiberglass CorpAcoustic ceiling
US3590135 *Jul 24, 1969Jun 29, 1971Gen ElectricCeiling structure with integral power distribution means
US3711052 *Jan 28, 1971Jan 16, 1973Westinghouse Electric CorpSupport hanger for interior lighting fixture
US3715578 *Feb 10, 1971Feb 6, 1973American Air Filter CoLight and filter assembly for ceiling structure
US3755667 *Mar 13, 1972Aug 28, 1973Mint FactorsRecessed lighting structure
US3782065 *Feb 25, 1972Jan 1, 1974Griffing WCeiling mounting arrangement
US3797789 *Mar 22, 1972Mar 19, 1974Armstrong Cork CoSupport bar for suspended ceiling light fixture
US3828507 *May 7, 1973Aug 13, 1974Burgess Products Co LtdFalse ceiling systems
US3841048 *Jan 29, 1973Oct 15, 1974Chicago Metallic CorpConcealed grid system
US3898782 *Jan 4, 1974Aug 12, 1975Lightolier IncIntegrated ceiling system
US3974584 *Mar 28, 1975Aug 17, 1976Shorette Richard ALight enclosure for suspended ceiling
US3989398 *Jan 6, 1975Nov 2, 1976United States Gypsum CompanyClip-on attachment members for structural steel joists
US4041657 *Sep 18, 1975Aug 16, 1977Fastway Fasteners, Inc.Fixture support for grid type ceiling
US4075775 *Jun 28, 1976Feb 28, 1978Shorette Richard ALight diffuser and illuminating ceiling display
US4114326 *Aug 19, 1976Sep 19, 1978Eclipse Mfg. Inc.Fixture hanging assembly
US4126971 *Apr 21, 1977Nov 28, 1978Eclipse Mfg. Inc.Fixture hanging assembly
US4399497 *Dec 16, 1980Aug 16, 1983PrescoliteRetainer for a lamp
US4594832 *Aug 11, 1983Jun 17, 1986Akins Dorman CSpacer
US4749061 *Feb 27, 1987Jun 7, 1988Westinghouse Electric Corp.Elevator cab
US5044103 *Apr 19, 1990Sep 3, 1991Izenberg Paul HSign holder for suspended ceilings
US5316254 *May 14, 1992May 31, 1994Mccartha Robert DJunction box support for suspended ceilings
US6029413 *Oct 14, 1998Feb 29, 2000Compas, Jr.; Albert W.Dropped ceiling support frame
US6315428May 21, 1999Nov 13, 2001Thomas ChiangLight fixture mounting for suspended ceiling
US6729096 *Sep 9, 2002May 4, 2004Aaon Inc.System for installing suspended ceiling
US6805514 *Jul 12, 2001Oct 19, 2004LegrandTrunking connecting device
US6840021Feb 23, 2004Jan 11, 2005Aaon, Inc.System for installing suspended ceiling
US7673430 *Aug 10, 2006Mar 9, 2010Koninklijke Philips Electronics, N.VRecessed wall-wash staggered mounting system
US7895955 *Mar 15, 2007Mar 1, 2011Ft Products, LlcShelf system
Classifications
U.S. Classification52/28, 248/318, 52/506.7, 362/150
International ClassificationE04B9/00, E04B9/12, E04B9/32, E04B9/06
Cooperative ClassificationE04B9/12, E04B9/32
European ClassificationE04B9/32, E04B9/12