US3556452A - Lighting fixture clamping device - Google Patents

Lighting fixture clamping device Download PDF

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Publication number
US3556452A
US3556452A US829194A US3556452DA US3556452A US 3556452 A US3556452 A US 3556452A US 829194 A US829194 A US 829194A US 3556452D A US3556452D A US 3556452DA US 3556452 A US3556452 A US 3556452A
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Prior art keywords
clamping device
members
lighting fixture
complimentary
connecting means
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Expired - Lifetime
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US829194A
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William W Ramsey
Robert Dale Flora
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    • 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
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/10Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
    • F21V21/112Fixing lighting devices to pendants
    • 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
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/04Recessed bases
    • F21V21/048Mounting arrangements for fastening lighting devices to false ceiling frameworks

Definitions

  • Another object of this invention is to furnish stabilizing means for mounted commercial lighting fixtures.
  • Still another object of this invention is to 'fumish a clamping device with features for quick and easy installation of commercial lighting fixtures.
  • FIG. I is an isometric drawing portraying the two-section clamping device.
  • FIG. 2 illustrates the two-section clamping device as a connector between a T-bar and a commercial lighting fixture.
  • FIG. I portrays the features of construction of the lighting fixture clamping device.
  • the type of material used is not critical, the only requirement being that the clamping device be fabricated from material having sufficient strength to support the lighting fixtures on the T-bars.
  • materials suitable for use are steel alloyed aluminum or plastics which have sufiicient strength to support the particular lighting fixture being mounted.
  • the structure of the clamping device is described as consisting of a pair of complimentary members 1 and 2, FIG. I, placed in juxtaposition to each other.
  • the members are formed from suitable flat surface material such as has been previously described shaped so that each of the two members I and 2, FIG. I, are assembled as shown in FIG. I.
  • the upper extremities of the surfaces of the complimentary members I and 2, FIG. I, are bent inwardly at a convenient angle to form 5 form lower parallel surfaces 4 and 5, FIG. 1.
  • a wingnut and screw assembly I0, FIG. 1, are spot welded to one of the members of the clamping device.
  • FIG. 2 shows the clamping device in a connecting position between the T-bar and the top surface of a commercial lighting fixture.
  • To install the clamping device place clamping members I and 2, FIG. I, so that the lower side of the upper surfaces of the clamping device rest on the upper surface of the T-bar 8, FIG. 2.
  • screw 3 FIG. 1 is tightened so that the clamping device shown in FIGS. 1 and 2 is tightly secured to the T-bar.
  • the lighting fixture 9, FIG. 2 is connected to the clamping device and held in position by the screw and wingnut, assembl 10, .FIG. 1.
  • the number of clamping devices required wil depend on the size of the commercial lighting fixture; usually only two are required to give stability to the fixture.
  • the said complimentary members being positioned together so that the said first and second angle face each other and the said third and fourth angle face outwardly from each other;

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Clamps And Clips (AREA)

Abstract

A two-section clamping device useful for mounting lighting fixtures from suspended T-bar structure, the said clamping device being constructed in such a manner so as to lend ease of installation, and also furnish stabilizing means to the mounted lighting fixture.

Description

United States Patent Inventors William W. Ramsey 6723 S. 72nd East Ave., 74033; Robert Dale Flora, 745 S. 85th East Ave.,
Tulsa, Okla. 74012 AppL No. 829,194 Filed June 2, 1969 Patented Jan. 19, 1971 LIGHTING FIXTURE CLAMPING DEVICE 1 Claim, 2 Drawing Figs.
U.S. Cl 248/228, 52/28, 52/484 Int. Cl F2ls 1/02 Field of Search 248/72,
214, 215, 226.4, 228, 300, 316.4, 317, 343; 52/28, 484; 240/78CF, 85A, 85E
[56] References Cited UNITED STATES PATENTS 2,944,781 7/1960 Masters 248/228 2,954,200 9/1960 Gannon et a1. 248/228 2,961,269 11/1960 Renfroe 248/228 Primary Examiner-Roy D. Frazier Assistant Examiner-William H, Schultz AttqrneyR. E. Zimmerman ABSTRACT: A twosection clamping device useful for mounting lighting fixtures from suspended T-bar structure, the said clamping device being constructed in such a manner so as to lend ease of installation, and also furnish stabilizing means to the mounted lighting fixture.
PATENTEUJANISIBYI 3,556,452
INVENTORS. 9 WILLIAM W RAMSEY ROBERT DALE FLORA ATTORNEY LIGHTING FIXTURE CLAMPING DEVICE FIELD OF THE INVENTION The lighting industry has had a need for stabilizing means to mount commercial lighting fixtures from suspended T-bars. In the past, the means used for mounting these commercial lighting fixtures from suspended T-bars has required tedious installation and has only furnished poor'lighting fixture stability. We have invented a two-section clamping device with SUMMARY OF INVENTION The object of this invention is to furnish a clamping device to mount commercial lighting fixtures easily on suspended T- bar construction found in commercial lighting installations.
Another object of this invention is to furnish stabilizing means for mounted commercial lighting fixtures.
Still another object of this invention is to 'fumish a clamping device with features for quick and easy installation of commercial lighting fixtures.
For a complete understanding of the nature and objects of this invention, reference should be made to the drawings and the detailed description which follows.
FIG. I is an isometric drawing portraying the two-section clamping device.
FIG. 2 illustrates the two-section clamping device as a connector between a T-bar and a commercial lighting fixture.
Reference is made to FIG. I which portrays the features of construction of the lighting fixture clamping device. The type of material used is not critical, the only requirement being that the clamping device be fabricated from material having sufficient strength to support the lighting fixtures on the T-bars. For example, materials suitable for use are steel alloyed aluminum or plastics which have sufiicient strength to support the particular lighting fixture being mounted.
The structure of the clamping device is described as consisting of a pair of complimentary members 1 and 2, FIG. I, placed in juxtaposition to each other. The members are formed from suitable flat surface material such as has been previously described shaped so that each of the two members I and 2, FIG. I, are assembled as shown in FIG. I. The upper extremities of the surfaces of the complimentary members I and 2, FIG. I, are bent inwardly at a convenient angle to form 5 form lower parallel surfaces 4 and 5, FIG. 1. A screw 3, FIG.
I, is positioned to pass through the lower parallel surface of one of the members into a tapped hole in the lower parallel surface of the second member. The reshaped lower parallel surfaces of both members are bent outwardly to form approximate right angles in such a manner so that each of the surfaces 6 and 7, FIG. 1, formed rest against the upper flat surface of the lighting fixture 9, FIG. 2. A wingnut and screw assembly I0, FIG. 1, are spot welded to one of the members of the clamping device.
I Reference is made to FIG. 2 which shows the clamping device in a connecting position between the T-bar and the top surface of a commercial lighting fixture. To install the clamping device, place clamping members I and 2, FIG. I, so that the lower side of the upper surfaces of the clamping device rest on the upper surface of the T-bar 8, FIG. 2. When the clamping device is in this position, screw 3 FIG. 1, is tightened so that the clamping device shown in FIGS. 1 and 2 is tightly secured to the T-bar. The lighting fixture 9, FIG. 2, is connected to the clamping device and held in position by the screw and wingnut, assembl 10, .FIG. 1. The number of clamping devices required wil depend on the size of the commercial lighting fixture; usually only two are required to give stability to the fixture.
We claim:
I. A clamping device consisting of two complimentary members:
a. the upper section of each of the surfaces of the said complimentary members being bent inwardly to form first and second angles;
b. the said surfaces in the lower extremities of the said complimentary members each being bent inwardly toward each other and reshaped to form approximate parallel surfaces in which a connecting means is inserted;
c. the said reshaped approximate parallel surfaces, each being bent outwardly to form a third and founh angle;
d. the said complimentary members being connected together by the said connecting means;
e. the said connecting means passing through one member into a tapped hole of a second member;
f. the said complimentary members being positioned together so that the said first and second angle face each other and the said third and fourth angle face outwardly from each other; and
g. support means extending from one of said members.

Claims (1)

1. A clamping device consisting of two complimentary members: a. the upper section of each of the surfaces of the said complimentary members being bent inwardly to form first and second angles; and b. the said surfaces in the lower extremities of the said complimentary members each being bent inwardly toward each other and reshaped to form approximate parallel surfaces in which a connecting means is inserted; c. the said reshaped approximate parallel surfaces, each being bent outwardly to form a third and fourth angle; d. the said complimentary members being connected together by the said connecting means; e. the said connecting means passing through one member into a tapped hole of a second member; f. the said complimentary members being positioned together so that the said first and second angle face each other and the said third and fourth angle face outwardly from each other; and g. support means extending from one of said members.
US829194A 1969-06-02 1969-06-02 Lighting fixture clamping device Expired - Lifetime US3556452A (en)

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US82919469A 1969-06-02 1969-06-02

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109305A (en) * 1976-04-23 1978-08-22 Armstrong Cork Company Relocatable suspended light fixture
US4230297A (en) * 1976-10-06 1980-10-28 Metalux Corporation Mounting bracket for fluorescent fixtures and the like
US4258895A (en) * 1979-05-18 1981-03-31 Rorie Jessie O Suspension means for smoke ejectors
US4558521A (en) * 1984-05-03 1985-12-17 Steck Manufacturing Co., Inc. Mechanism for checking three-dimensional bodies
EP0426238A1 (en) * 1989-10-31 1991-05-08 Koninklijke Philips Electronics N.V. Clamp for fastening a device to the top of a hollow post and device fitted with such a clamp
US6554231B2 (en) * 1999-08-16 2003-04-29 Dong-A Flexible Metal Tubes Co., Ltd. Sprinkler mounting device and method
US20040177976A1 (en) * 1999-01-08 2004-09-16 Pnm, Inc. A Massachusetts Corporation Fire protection sprinkler head support
US6811130B1 (en) 2003-12-10 2004-11-02 Kofulso Co., Ltd. Mounting structure for sprinklers
US20050241250A1 (en) * 2004-04-22 2005-11-03 Tarr Neil A Stud system for insulation of concrete structures
US20060192067A1 (en) * 2005-02-25 2006-08-31 Seung-Il Oh Mounting structure for sprinklers
US20070063121A1 (en) * 2005-09-19 2007-03-22 Seung-Il Oh Stock bar and T-bar coupling structure for mounting sprinkler
US20070175152A1 (en) * 2005-12-20 2007-08-02 Kupec Thoms F Single strip - double web ceiling grid member
US20080083853A1 (en) * 2006-10-05 2008-04-10 Seung-Il Oh Stock bar and horizontal bar coupling device for mounting sprinkler
US9341286B1 (en) 2015-01-29 2016-05-17 Kofulso Co., Ltd. Sprinkler reducer fixing bracket
US9718076B2 (en) 2015-01-29 2017-08-01 Kopulso Co. Ltd. Sprinkler side frame coupling device
US9889327B2 (en) 2014-06-27 2018-02-13 Flexhead Industries, Inc. Adjustable bracket and hub for flexible hose support
US10173088B2 (en) 2014-05-28 2019-01-08 The Reliable Automatic Sprinkler Co., Inc. Bracket for installation of a fire protection sprinkler
US10384728B2 (en) * 2016-03-28 2019-08-20 Transtex Llc Beam connector and method of installation thereof
US11628323B2 (en) 2021-04-22 2023-04-18 Kofulso Co., Ltd Sprinkler reducer fixing bracket
US11717712B2 (en) 2021-04-22 2023-08-08 Kofulso Co., Ltd Sprinkler support frame coupling device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944781A (en) * 1955-07-15 1960-07-12 George E Masters Hanger clip
US2954200A (en) * 1957-04-15 1960-09-27 Thomas P Gannon Support bracket
US2961269A (en) * 1957-08-21 1960-11-22 Renfroe Charles Joseph Beam clamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944781A (en) * 1955-07-15 1960-07-12 George E Masters Hanger clip
US2954200A (en) * 1957-04-15 1960-09-27 Thomas P Gannon Support bracket
US2961269A (en) * 1957-08-21 1960-11-22 Renfroe Charles Joseph Beam clamp

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109305A (en) * 1976-04-23 1978-08-22 Armstrong Cork Company Relocatable suspended light fixture
US4230297A (en) * 1976-10-06 1980-10-28 Metalux Corporation Mounting bracket for fluorescent fixtures and the like
US4258895A (en) * 1979-05-18 1981-03-31 Rorie Jessie O Suspension means for smoke ejectors
US4558521A (en) * 1984-05-03 1985-12-17 Steck Manufacturing Co., Inc. Mechanism for checking three-dimensional bodies
EP0426238A1 (en) * 1989-10-31 1991-05-08 Koninklijke Philips Electronics N.V. Clamp for fastening a device to the top of a hollow post and device fitted with such a clamp
US20040177976A1 (en) * 1999-01-08 2004-09-16 Pnm, Inc. A Massachusetts Corporation Fire protection sprinkler head support
US7032680B2 (en) 1999-01-08 2006-04-25 Pnm, Inc. Fire protection sprinkler head support
US6554231B2 (en) * 1999-08-16 2003-04-29 Dong-A Flexible Metal Tubes Co., Ltd. Sprinkler mounting device and method
US6811130B1 (en) 2003-12-10 2004-11-02 Kofulso Co., Ltd. Mounting structure for sprinklers
US20050241250A1 (en) * 2004-04-22 2005-11-03 Tarr Neil A Stud system for insulation of concrete structures
US7481032B2 (en) * 2004-04-22 2009-01-27 Neil Tarr Stud system for insulation of concrete structures
US7255315B2 (en) 2005-02-25 2007-08-14 Kofulso Co., Ltd. Mounting structure for sprinklers
US20060192067A1 (en) * 2005-02-25 2006-08-31 Seung-Il Oh Mounting structure for sprinklers
US7264214B2 (en) 2005-09-19 2007-09-04 Kofulso Co., Ltd. Stock bar and T-bar coupling structure for mounting sprinkler
US20070063121A1 (en) * 2005-09-19 2007-03-22 Seung-Il Oh Stock bar and T-bar coupling structure for mounting sprinkler
US20070175152A1 (en) * 2005-12-20 2007-08-02 Kupec Thoms F Single strip - double web ceiling grid member
US20080083853A1 (en) * 2006-10-05 2008-04-10 Seung-Il Oh Stock bar and horizontal bar coupling device for mounting sprinkler
US7506845B2 (en) 2006-10-05 2009-03-24 Kofulso Co., Ltd Stock bar and horizontal bar coupling device for mounting sprinkler
US10173088B2 (en) 2014-05-28 2019-01-08 The Reliable Automatic Sprinkler Co., Inc. Bracket for installation of a fire protection sprinkler
US10328296B2 (en) 2014-05-28 2019-06-25 The Reliable Automatic Sprinkler Co., Inc. Bracket for installation of a fire protection sprinkler
US10426986B2 (en) 2014-05-28 2019-10-01 The Reliable Automatic Sprinkler Co., Inc. Bracket for installation of a fire protection sprinkler
US10500427B2 (en) 2014-06-27 2019-12-10 Anvil International, Llc Adjustable bracket and hub for flexible hose support
US10792526B2 (en) 2014-06-27 2020-10-06 Anvil International, Llc Adjustable bracket and hub for flexible hose support
US9889327B2 (en) 2014-06-27 2018-02-13 Flexhead Industries, Inc. Adjustable bracket and hub for flexible hose support
US10744357B2 (en) 2014-06-27 2020-08-18 Anvil International, Llc Adjustable bracket and hub for flexible hose support
US9341286B1 (en) 2015-01-29 2016-05-17 Kofulso Co., Ltd. Sprinkler reducer fixing bracket
US9718076B2 (en) 2015-01-29 2017-08-01 Kopulso Co. Ltd. Sprinkler side frame coupling device
US10689043B2 (en) 2016-03-28 2020-06-23 Transtex Inc. Securing mechanism for aerodynamic skirt-securing member and method of installation thereof
US10384728B2 (en) * 2016-03-28 2019-08-20 Transtex Llc Beam connector and method of installation thereof
US11628323B2 (en) 2021-04-22 2023-04-18 Kofulso Co., Ltd Sprinkler reducer fixing bracket
US11717712B2 (en) 2021-04-22 2023-08-08 Kofulso Co., Ltd Sprinkler support frame coupling device

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