US3597889A - Junction box suspension unit for suspended ceilings - Google Patents

Junction box suspension unit for suspended ceilings Download PDF

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Publication number
US3597889A
US3597889A US864794A US3597889DA US3597889A US 3597889 A US3597889 A US 3597889A US 864794 A US864794 A US 864794A US 3597889D A US3597889D A US 3597889DA US 3597889 A US3597889 A US 3597889A
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junction box
iron
irons
strap
hook
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US864794A
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Antonio Lo Nigro
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/12—Distribution boxes; Connection or junction boxes for flush mounting
    • H02G3/123—Distribution boxes; Connection or junction boxes for flush mounting in thin walls
    • H02G3/125—Distribution boxes; Connection or junction boxes for flush mounting in thin walls with supporting bar extending between two separate studs of a wall frame

Definitions

  • the straight flat't'aced median portion of the bar serves to adjustably mount a hanger clip which is carried'by the junction box.
  • v suspended ceilings such as are currently in widespread use in modern building structures, for example, large public buildings such as shopping centers, theaters, garages and the like and has to do, more specifically stated, with means which will facilitate installation of junction boxes of a type which are capable of reliably hanging lighting fixtures and appliances which are of considerable weight.
  • An object of the present invention is to structurally, functionally and in other practical ways improve upon prior art lighting fixture support means and, in so doing, to advance the art and to provide a junction box suspension unit which well serves the purposes for which it'has been perfected and successfully used.
  • a prefabricated adapter unit which, specifically construed, comprises a length of flat-faced strap iron which is of one-piece construction and provides a substantially rigid supporting bar.
  • This bar is of predetermined accurate length proportional to the space which is to be bridged thereby, said strap providing a bar of requisite rigidity to accommodate a slotted hanger clip, that is, a clip which is fastened to or otherwise carried by a slotted top wall of a conventional-type junction box.
  • the respective end portions of the strap iron or bar are provided with downwardly offset bent portions. Each bent portion is L.- shaped and has a horizontal part united with a right angularly disposed downwardly opening U-shaped terminal end portion which defines a bar mounting and attaching hook.
  • the respective hooks are fitted over the vertical flanges of customary T- irons which are employed in the ceiling frame. 'lheouter leg or bill portion of the hook is equipped with a setscrew which permits the hook to be securely anchored.
  • FIG. 1 is a view in perspective showing several inverted T- irons in phantom lines such as are embodied in an openwork or grid-type suspension ceiling frame and showing the im' proved attachable and detachable prefabricated adapter unit and how it is constructed and preferably used.
  • FIG. 2 is a view with parts in section and elevation on an enlarged scale showing two T-irons in section and showing the unit partly in section and elevation partly in and how it is mounted to support the clip-retained junction box.
  • FIG. 3 is a section taken on the vertical section line 3-3 of FIG. 2.
  • the aforementioned suspension ceiling frame or frame structure is a conventional type.
  • the frame members are denoted at A, B and C.
  • the paired spaced parallel coplanar members B and C are of customary inverted T-shaped construction and are referred to as T -irons, the horizontal flanges being denoted at 6 and the vertical or upstanding flanges at 8. It is to these flanges that the end portions of the adapter unit 10 are detachably and adjustably secured.
  • the adapter unit comprises a single length of flat-faced strap metal the main or body portion of which is denoted at 12.
  • each end portion is provided with a substantially L-shaped bend or bent portion I4 which comprises a depending component 16 and a horizontal component 18 which in practice resides atop or adjacent to the upper surface of the ceiling panel or block 20 as shown in FIG. 2.
  • the terminal of the bent portion 18 is joined with the inverted U-shaped fastening means which is here referred to specifically as an inverted or downwardly opening book 22, more particularly a book which fits removably over the flange 8.
  • the outer leg of the hook also referred to as the bill portion, is denoted at 24 and is provided with a setscrew 26 which serves to secure the hook conveniently and accessibly in place.
  • the body portion of the bar 10 serves to accommodatingly and adjustably support a conventional junction box 28.
  • This junction box has a top wall provided with slot means 3] to accommodate the upstanding spaced parallel legs of a U-shaped attaching clip 30.
  • the legs extend up through the slot and are, in turn, provided with slots, said legs being denoted at 32 and the slotted portions 33 being adjustable along the bar in the manner clearly evident in Figs. I and 2.
  • an assem bling screw 34 may be used to hold the usual threaded nipple 35 of the clip means 30 in place for use.
  • the fixture hanging junction box is attached to the support bar in such a way that it can be slid freely along the entire length and can be secured by tightening its setscrew at any selected position. (This feature provides adjustability in placing and centering of the fixture box.) A hole is then made on the ceiling panel directly below where the box is secured and the fixture (not shown) is then hung.
  • the hanging fixture cannot be pushed upwards or out of place because its box 28 is secured on the bar 12 which in turn is secured at both ends to the 'l-irons B.
  • the fixture is virtually immovable despite the fact that the ceiling panels can be pushed out of place in the usual manner by a touch of the finger.
  • an openwork grid-type suspended ceiling frame structure embodying a pair of spaced interconnected parallel coplanar inverted T-irons, an adapter unit designed and adapted to bridge the space between coacting portions of the respective T-irons, said adapter unit comprising a single length of strap iron embodying an elongated fiat-faced body portion and correspondingly constructed integral end portions, each end portion having a terminal downwardly opening strap-iron attaching hook removably hooked over a vertical flange portion of the respectively cooperable T-iron, each holddown bend, said bend having a horizontal part which is disposed at right angles to the adjacent inner leg of the cooperatively adjacent hook and is thus adapted to rest firmly and retentively atop a coacting surface of a ceiling panel, a junction box for electric lighting fixtures and appliances, and clip means for slidably and adjustably mounting said junction box, on said strap iron.

Abstract

A suspension unit for installation in an openwork or grid-type suspension ceiling and which can be relied upon to support a fixture-hanging junction box. It comprises a one-piece strap-iron supporting bar which is adapted to bridge the space between a pair of the usual inverted T-irons. The respective outer end portions feature right angularly positioned downwardly opening hooks which are hooked over the respectively cooperable T-irons and are held in place by accessible setscrews. The straight flatfaced median portion of the bar serves to adjustably mount a hanger clip which is carried by the junction box.

Description

United States Patent |72] Inventor Antonio Lo Nigro 192 Brooks St., East Boston, Mass. 02128 [2 ll Appl. No. 864,794 [22] Filed Oct. 8, I969 [45] Patented Aug. 10, I971 [54] JUNCTION BOX SUSPENSION UNIT FOR SUSPENDED CEILINGS 1 Claim, 3 Drawing Figs.
52 u.s.c1 52/28, 248/57, 248/3 43, 52/495 [51] lnt.Cl [104g 17/18 [50] Field of Search 52/28,' 495; I i 248/343,'57,2l4
[5 6] References Cited UNITED STATES PATENTS 1,622,087 3/1927 Calderwood 248/343 |,709,6l4 4/1929 Fadell 248/343 2,487,645 248/214 X l 1/1949 Gershon 2,670,919 3/1954 Esoldi 52/28X 2,878,028 3/1959 Long.... 248/346X 3,2l4,l26 l0/l965 Roosw. 248/57X 3,309,053 3/l967 Baker...... 248/214X 3,343,310 9/l967 Netzetal 52/28 Primary Examiner-Frank L Abbott Assistan1ExaminerSam D. Burke Anorneys-Clarence A. OBrien and Harvey B. Jacobson ABSTRACT; A suspension unit for installation in an openwork or grid-type suspension ceiling and which can be relied upon to support a fixture-hanging junction box. It comprises a one-piece strap-iron supporting bar which is adapted to bridge the space between a pair of the usual inverted T-irons. The respective outer end portions feature right angularly positioned downwardly opening hooks which are hooked over the respectively cooperable T-irons and are held in place by accessible setserews. The straight flat't'aced median portion of the bar serves to adjustably mount a hanger clip which is carried'by the junction box.
Patented Aug. 10, 1971 3,597,889
oN/gro INVENTOR.
v suspended ceilings such as are currently in widespread use in modern building structures, for example, large public buildings such as shopping centers, theaters, garages and the like and has to do, more specifically stated, with means which will facilitate installation of junction boxes of a type which are capable of reliably hanging lighting fixtures and appliances which are of considerable weight.
One of the disadvantages attending suspended ceilings has to do with the fact that the insertable and removable ceiling panels (blocks or tiles) are structurally such that they cannot be depended upon to support heavy fixtures. The most commonly used fixture is a lightweight flush mounted or recessed type which is placed in the position ofa selected ceiling panel. Under prevailing circumstances the choice and type of availablyusable lighting fixtures and appliances is such that the results desired cannot be achieved. It follows that it is the general object of the instant invention to pave the way for the adoption and use of an unlimited choice of lighting fixtures and appliances of any desirable shape, size or design ranging from simple low-price type to expensiveornamental chandeliers capable of harmonizing with any prevailing decor and at the same time to unhesitatingly cope with weight problems.
The broad ideas of providing special facilities in a suspended ceiling framework with a view toward affording balanced support means for electric lighting fixtures is not new in the field of endeavor under consideration. For state of the art purposes the reader can, if so desired, check the W. H. Fuss, US. Pat. No. 2,963,25 l. The Fuss patent has to do with suspension means supported on a ceiling framework for suspending electric outlet boxes, lighting fixtures and the like.
For further background purposes and because it may be helpful in evaluating the scope of the herein disclosed invention attention is invited to a U8. Pat. to J. Budnick et al. No. 3,104,087 which pertains to means for supporting electrical fixtures. It will be noted that the Budnick et al. patent involves a structural adaptation which cannot be successfully used for and in conjunction with suspension ceilings. In fact it is designed to be attached to wooden joists by way of flanges which are nailed or otherwise properly secured to the joists. Then, too, it will be noted that although the junction box is shown clipped to the bar hanger, the latter is of undesirable extensible and retractable construction not needed or necessary in openwork or grid-type suspension ceiling frames.
An object of the present invention is to structurally, functionally and in other practical ways improve upon prior art lighting fixture support means and, in so doing, to advance the art and to provide a junction box suspension unit which well serves the purposes for which it'has been perfected and successfully used.
Briefly the herein disclosed concept relates to a prefabricated adapter unit which, specifically construed, comprises a length of flat-faced strap iron which is of one-piece construction and provides a substantially rigid supporting bar. This bar is of predetermined accurate length proportional to the space which is to be bridged thereby, said strap providing a bar of requisite rigidity to accommodate a slotted hanger clip, that is, a clip which is fastened to or otherwise carried by a slotted top wall of a conventional-type junction box. The respective end portions of the strap iron or bar are provided with downwardly offset bent portions. Each bent portion is L.- shaped and has a horizontal part united with a right angularly disposed downwardly opening U-shaped terminal end portion which defines a bar mounting and attaching hook. The respective hooks are fitted over the vertical flanges of customary T- irons which are employed in the ceiling frame. 'lheouter leg or bill portion of the hook is equipped with a setscrew which permits the hook to be securely anchored.
Stated more explicitly, the body portion of the strap iron or bar is of requisite length and straight from end to end and become subsequently apparent reside in the details of con struction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:
FIG. 1 is a view in perspective showing several inverted T- irons in phantom lines such as are embodied in an openwork or grid-type suspension ceiling frame and showing the im' proved attachable and detachable prefabricated adapter unit and how it is constructed and preferably used.
FIG. 2 is a view with parts in section and elevation on an enlarged scale showing two T-irons in section and showing the unit partly in section and elevation partly in and how it is mounted to support the clip-retained junction box.
And FIG. 3 is a section taken on the vertical section line 3-3 of FIG. 2.
With reference first to FIGS. 1 and 2 the aforementioned suspension ceiling frame or frame structure is a conventional type. In the arrangement illustrated the frame members are denoted at A, B and C. The paired spaced parallel coplanar members B and C are of customary inverted T-shaped construction and are referred to as T -irons, the horizontal flanges being denoted at 6 and the vertical or upstanding flanges at 8. It is to these flanges that the end portions of the adapter unit 10 are detachably and adjustably secured. The adapter unit comprises a single length of flat-faced strap metal the main or body portion of which is denoted at 12. The respective end portions are the same in construction and each end portion is provided with a substantially L-shaped bend or bent portion I4 which comprises a depending component 16 and a horizontal component 18 which in practice resides atop or adjacent to the upper surface of the ceiling panel or block 20 as shown in FIG. 2. The terminal of the bent portion 18 is joined with the inverted U-shaped fastening means which is here referred to specifically as an inverted or downwardly opening book 22, more particularly a book which fits removably over the flange 8. The outer leg of the hook, also referred to as the bill portion, is denoted at 24 and is provided with a setscrew 26 which serves to secure the hook conveniently and accessibly in place.
The body portion of the bar 10 serves to accommodatingly and adjustably support a conventional junction box 28. This junction box has a top wall provided with slot means 3] to accommodate the upstanding spaced parallel legs of a U-shaped attaching clip 30. The legs extend up through the slot and are, in turn, provided with slots, said legs being denoted at 32 and the slotted portions 33 being adjustable along the bar in the manner clearly evident in Figs. I and 2. If desired an assem bling screw 34 may be used to hold the usual threaded nipple 35 of the clip means 30 in place for use.
The fixture hanging junction box is attached to the support bar in such a way that it can be slid freely along the entire length and can be secured by tightening its setscrew at any selected position. (This feature provides adjustability in placing and centering of the fixture box.) A hole is then made on the ceiling panel directly below where the box is secured and the fixture (not shown) is then hung.
The hanging fixture cannot be pushed upwards or out of place because its box 28 is secured on the bar 12 which in turn is secured at both ends to the 'l-irons B. Thus, the fixture is virtually immovable despite the fact that the ceiling panels can be pushed out of place in the usual manner by a touch of the finger.
The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described. and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.
I claim:
I. In combination. an openwork grid-type suspended ceiling frame structure embodying a pair of spaced interconnected parallel coplanar inverted T-irons, an adapter unit designed and adapted to bridge the space between coacting portions of the respective T-irons, said adapter unit comprising a single length of strap iron embodying an elongated fiat-faced body portion and correspondingly constructed integral end portions, each end portion having a terminal downwardly opening strap-iron attaching hook removably hooked over a vertical flange portion of the respectively cooperable T-iron, each holddown bend, said bend having a horizontal part which is disposed at right angles to the adjacent inner leg of the cooperatively adjacent hook and is thus adapted to rest firmly and retentively atop a coacting surface of a ceiling panel, a junction box for electric lighting fixtures and appliances, and clip means for slidably and adjustably mounting said junction box, on said strap iron.

Claims (1)

1. In combination, an openwork grid-type suspended ceiling frame structure embodying a pair of spaced interconnected parallel coplanar inverted T-irons, an adapter unit designed and adapted to bridge the space between coacting portions of the respective T-irons, said adapter unit comprising a single length of strap iron embodying an elongated flat-faced body portion and correspondingly constructed integral end portions, each end portion having a terminal downwardly opening strap-iron attaching hook removably hooked over a vertical flange portion of the respectively cooperable T-iron, each hook having inner and outer legs joined at upper ends by a connecting bight portion, said bight portion being in a plane with the plane of said body portion, the outer leg providing a depending bill portion, said bill portion being provided with a readily accessible setscrew which is clampingly engaged with a coacting surface of the coordinating flange portion of the oriented T-iron, that part of each end portion at the juncture of the inner leg and body portion being formed with an integral L-shaped portion providing a ceiling panel engaging and holddown bend, said bend having a horizontal part which is disposed at right angles to the adjacent inner leg of the cooperatively adjacent hook and is thus adapted to rest firmly and retentively atop a coacting surface of a ceiling panel, a junction box for electric lighting fixtures and appliances, and clip means for slidably and adjustably mounting said junction box, on said strap iron.
US864794A 1969-10-08 1969-10-08 Junction box suspension unit for suspended ceilings Expired - Lifetime US3597889A (en)

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Cited By (56)

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US3711052A (en) * 1971-01-28 1973-01-16 Westinghouse Electric Corp Support hanger for interior lighting fixture
US3714744A (en) * 1971-10-12 1973-02-06 J Koziarz Electrical fixture hanger
US4041657A (en) * 1975-09-18 1977-08-16 Fastway Fasteners, Inc. Fixture support for grid type ceiling
US4114327A (en) * 1977-05-13 1978-09-19 Williams Arthur C Light fixture support
US4114326A (en) * 1974-03-28 1978-09-19 Eclipse Mfg. Inc. Fixture hanging assembly
US4126971A (en) * 1976-08-19 1978-11-28 Eclipse Mfg. Inc. Fixture hanging assembly
US4149693A (en) * 1977-12-02 1979-04-17 Lonigro Antonio Fixture support with twisted central portion
US4513994A (en) * 1983-01-31 1985-04-30 Robbins & Myers, Inc. Ceiling fan and outlet box support
US4645158A (en) * 1983-11-02 1987-02-24 Man-Mor Industries, Inc. Ceiling fan mounting apparatus
US4717099A (en) * 1986-05-15 1988-01-05 Hubbard George R Fire sprinkler alignment bracket
US5009383A (en) * 1990-04-30 1991-04-23 Daniel J. Chapman Suspended ceiling electrical bracket
US5045985A (en) * 1990-03-15 1991-09-03 Lightolier, Inc. Self locking adjustable mounting bars
US5226626A (en) * 1991-10-28 1993-07-13 Driscoll Dennis F Ceiling panel and fan construction
US5316254A (en) * 1992-05-14 1994-05-31 Mccartha Robert D Junction box support for suspended ceilings
US5345729A (en) * 1993-02-25 1994-09-13 Wildeck, Inc. Support for tamper proof securing light fixture on suspended ceiling panel
US5374812A (en) * 1992-01-28 1994-12-20 Lightolier Division Of The Genlyte Group Incorporated Recessed lighting fixture
US5435514A (en) * 1992-06-12 1995-07-25 Fan Tex, Inc. Fan hanger support for drop ceilings
US5606147A (en) * 1992-06-02 1997-02-25 Eclipse Manufacturing, Inc. Electrical outlet box for hanging an electrical fixture
US5698820A (en) * 1995-06-27 1997-12-16 Parsec Products, Inc. Method and apparatus for junction box and conduit support
US5934631A (en) * 1996-08-19 1999-08-10 Thomas & Betts Corporation Hanger bar assembly
US6105918A (en) * 1998-04-24 2000-08-22 Cooper Technologies Company Single piece adjustable hanger bar for lighting fixtures
US6119784A (en) * 1999-01-08 2000-09-19 Pnm, Inc. Support system for fire protection sprinklers
US6123154A (en) * 1999-01-08 2000-09-26 Pnm, Inc. Support system attachment mechanism for fire protection sprinklers
US6286265B1 (en) 2000-02-01 2001-09-11 Cooper Technologies Company Recessed lighting fixture mounting
US6332597B1 (en) 1998-03-19 2001-12-25 Hubbell Incorporated Mounting bracket and supporting brace
US6488097B1 (en) 1999-01-08 2002-12-03 Pnm, Inc. Fire protection sprinkler head support
US6811130B1 (en) * 2003-12-10 2004-11-02 Kofulso Co., Ltd. Mounting structure for sprinklers
US6889943B2 (en) 2001-07-06 2005-05-10 Thomas & Betts International, Inc. Hanger bar assembly
US20050230589A1 (en) * 2004-03-25 2005-10-20 Cooper Technologies Company Hangar bar for recessed luminaires with integral nail
US20060243877A1 (en) * 2005-04-28 2006-11-02 Rippel Graham M Hanger bar centering mechanism
US20080025031A1 (en) * 2006-06-01 2008-01-31 Cooper Technologies Company Surface-mounted lighting system
US20080067313A1 (en) * 2003-11-20 2008-03-20 Greg Herth Variable spacing mounted versatile paddle fan and ceiling electrical box
US7357541B2 (en) 2004-04-05 2008-04-15 Genlyte Thomas Group, Llc Enclosure for socket cup for snap-in electrical quick connectors
US20080296460A1 (en) * 2007-05-30 2008-12-04 Kerr Jr Jack Russell Ceiling mounted brace for an electrical fixture
US20090175040A1 (en) * 2008-01-08 2009-07-09 Russell Green Surface-mounted lighting system
US20090184226A1 (en) * 2008-01-17 2009-07-23 Target Brands, Inc. Ceiling grid spanner
US7784754B2 (en) 2005-12-08 2010-08-31 Genlyte Thomas Group Llc Adjustable hanger bar assembly with bendable portion
US7874708B1 (en) 2007-06-26 2011-01-25 Genlyte Thomas Group, Llc T-bar mounting system
US20110188254A1 (en) * 2010-01-30 2011-08-04 Koninklijke Philips Electronics N.V. Recessed Fixture Housing Having Removable Ballast Box
US7993037B1 (en) 2008-08-27 2011-08-09 Koninklijke Philips Electronics N.V. Recessed light fixture with a movable junction box
US20120018604A1 (en) * 2010-07-26 2012-01-26 Kerr Jr Jack Bracket Having Overhanging Support Elements For Supporting An Electrical Box
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US20130075555A1 (en) * 2011-05-02 2013-03-28 Jack R. Kerr, Jr. Support Bracket For Supporting An Electrical Box
US8561961B1 (en) 2010-02-25 2013-10-22 Cooper Technologies Company Captive hardware for improved installation
US8939418B2 (en) 2013-04-05 2015-01-27 Cooper Technologies Company Adjustable hanger bar for luminaires
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US9239131B1 (en) 2015-06-05 2016-01-19 Cooper Technologies Company Adjustable hanger bars with detachment stop
US9696021B2 (en) 2004-03-25 2017-07-04 Cooper Technologies Company Hanger bar for recessed luminaires
US9732904B1 (en) 2015-06-05 2017-08-15 Cooper Technologies Company Adjustable hanger bar assembly for luminaires
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US10281122B2 (en) 2015-12-09 2019-05-07 Abl Ip Holding Llc Luminaire junction box housing
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US1709614A (en) * 1927-09-26 1929-04-16 George J Fadell Electric-fixture support
US2487645A (en) * 1947-07-28 1949-11-08 Gershon Benjamin Minnow bucket
US2670919A (en) * 1950-03-29 1954-03-02 Esoldi Vincent Adjustable support for ceiling lighting fixtures
US2878028A (en) * 1957-08-15 1959-03-17 A Mfg Co Ab Adjustable dolly
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Cited By (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711052A (en) * 1971-01-28 1973-01-16 Westinghouse Electric Corp Support hanger for interior lighting fixture
US3714744A (en) * 1971-10-12 1973-02-06 J Koziarz Electrical fixture hanger
US4114326A (en) * 1974-03-28 1978-09-19 Eclipse Mfg. Inc. Fixture hanging assembly
US4041657A (en) * 1975-09-18 1977-08-16 Fastway Fasteners, Inc. Fixture support for grid type ceiling
US4126971A (en) * 1976-08-19 1978-11-28 Eclipse Mfg. Inc. Fixture hanging assembly
US4114327A (en) * 1977-05-13 1978-09-19 Williams Arthur C Light fixture support
US4149693A (en) * 1977-12-02 1979-04-17 Lonigro Antonio Fixture support with twisted central portion
US4513994A (en) * 1983-01-31 1985-04-30 Robbins & Myers, Inc. Ceiling fan and outlet box support
US4645158A (en) * 1983-11-02 1987-02-24 Man-Mor Industries, Inc. Ceiling fan mounting apparatus
US4717099A (en) * 1986-05-15 1988-01-05 Hubbard George R Fire sprinkler alignment bracket
US5045985A (en) * 1990-03-15 1991-09-03 Lightolier, Inc. Self locking adjustable mounting bars
US5009383A (en) * 1990-04-30 1991-04-23 Daniel J. Chapman Suspended ceiling electrical bracket
US5226626A (en) * 1991-10-28 1993-07-13 Driscoll Dennis F Ceiling panel and fan construction
US5374812A (en) * 1992-01-28 1994-12-20 Lightolier Division Of The Genlyte Group Incorporated Recessed lighting fixture
US5316254A (en) * 1992-05-14 1994-05-31 Mccartha Robert D Junction box support for suspended ceilings
US5606147A (en) * 1992-06-02 1997-02-25 Eclipse Manufacturing, Inc. Electrical outlet box for hanging an electrical fixture
US5435514A (en) * 1992-06-12 1995-07-25 Fan Tex, Inc. Fan hanger support for drop ceilings
US5345729A (en) * 1993-02-25 1994-09-13 Wildeck, Inc. Support for tamper proof securing light fixture on suspended ceiling panel
US5698820A (en) * 1995-06-27 1997-12-16 Parsec Products, Inc. Method and apparatus for junction box and conduit support
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