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US3172608A - Lighting fixture with a light guard - Google Patents

Lighting fixture with a light guard Download PDF

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Publication number
US3172608A
US3172608A US219560A US21956062A US3172608A US 3172608 A US3172608 A US 3172608A US 219560 A US219560 A US 219560A US 21956062 A US21956062 A US 21956062A US 3172608 A US3172608 A US 3172608A
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United States
Prior art keywords
flange
fixture
base
edge
guard
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Expired - Lifetime
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US219560A
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Irving M Ausman
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • F21S8/063—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension with a rigid pendant, i.e. a pipe or rod
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening 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
    • F21V17/102—Fastening 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 gravity or suction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • the present invention provides a readily attachable and removable guard for such fixtures, and which provides the desired protection.
  • FIGURE 1 is a perspective view of a light guard constructed in accordance with the invention, and showing it mounted in place under an elongated light fixture;
  • FIGURE 2 is an enlarged fragmentary perspective view of an inside portion of the guard of FIG. 1;
  • FIGURE 3 is a fragmentary view similar to FIGURE 1, and showing another mounting means;
  • FIGURE 4 is a perspective view similar to FIGURE 1 and showing still another mounting means.
  • FIGURE 5 is a perspective view with parts broken away of another embodiment of light guard.
  • the invention is adapted for use with a horizontal elongated fluorescent lighting fixture 1 having a longitudinal frame 2 with open ends which expose the tube mounting members 3. Fixture 1 may be hung from a ceiling e.
  • a light guard 5 which comprises an elongated sheet of suitable light-transmissive plastic which is bent upwardly along a transverse line near the ends to form a horizontal base 6and two vertical upstanding end members 7.
  • Base 6 is of slightly greater length and width than fixture 1 and covers the light tubes 8.
  • End members 7 are of greater height than fixture frame 2. The guard will .herefore fit over the fixture from below with ends 7 extending above the frame.
  • plastic sheet be clear and relatively flexible rather than brittle.
  • a suitable plastic has been found to be cellulose acetate butyrate. Plexiglas, although slightly more brittle, may also be usable in some installations.
  • Each strip comprises a horizontal flange 9 and a vertical flange 10 extending upwardly from adjacent the outer edge of flange 9.
  • the corner between flanges 9 and 10 fits up against the longitudinal edge of base 6.
  • one of the flanges is extended at each end and bent inwardly 90 so that it forms a brace 11 which fits over an end member 7.
  • each flange 10 is extended to provide a brace 11 at each end.
  • the lower edge of each brace 11 is substantially parallel to and closely adjacent the end edge of the opposite flange 9.
  • each angle strip which are contiguous with the plastic sheet, such as flange 10 and brace 11, are secured to base 6 and flange 9 respectively by a suitable means such as rivets 12.
  • FIGURES 1 and 2 Patented Mar. 9, 1955 ice
  • the light guard shown in FIGURES 1 and 2 is secured in place beneath fixture 1 by a plurality of cables 13 attached at the top to ceiling 4 and at the bottom to eyelets or hooks 14 which are mounted in flanges ill.
  • hooks 15 are constructed to engage the sides of frame 2 to thereby eliminate cables 13 and hang the guard directly from the fixture.
  • FIGURE 4 another embodiment is shown wherein guard 5 is suspended on transverse cables 16 which join transversely aligned hooks 17 on the frame and which pass beneath the fixture.
  • FIGURE 5 may be used in the event it is desired to protect the sides as well as the ends of the fixture.
  • light-transmissive plastic side panels 1% are riveted or otherwise secured to vertical flanges it and extend between the edges of end members 7 and to a height similar to the end members.
  • Vertical corner braces 19 are then utilized.
  • panels 13 could be bent up from base 6, as are members 7.
  • the invention provides a novel light guard which is easy to install and inexpensive to manufacture. Complete protection of and from the light fixture is obtained therewith. In the event of light tube breakage, protection below from shattered glass is provided.
  • a guard comprising:
  • each end of one of said flanges extending beyond the other flange and being bent inwardly to form a brace member having an edge disposed parallel to and closely adjacent the end edge of the other flange,

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

March 9, 1965 1. M. AUSMAN 3,172,608
LIGHTING FIXTURE) WITH A LIGHT GUARD Filed Aug. 27, 1962 INVENTOR. H6, .9: [cw/v6 Al. 401M461 United States Patent s 172 608 LIGHTING FlXTURiS wrrn A LIGHT GUARD Irving M. Ausmm, 306 lier St., Merrill, Wis. Filed Aug. 27, 1962, Ser. No. 219,560 2 Claims. Cl. 240-78) This invention relates to a light guard, and more particularly to protective covers for lighting fixtures.
Many industrial plants and barns utilize fluorescent lights disposed in elongated fixtures. Many such fixtures are manufactured with open sides or ends, but users thereof have sometimes desired to close them in the interest of safety and cleanliness.
The present invention provides a readily attachable and removable guard for such fixtures, and which provides the desired protection.
The accompanying drawings illustrate the best mode presently contemplated by the inventor for carrying out the invention.
In the drawings:
FIGURE 1 is a perspective view of a light guard constructed in accordance with the invention, and showing it mounted in place under an elongated light fixture;
FIGURE 2 is an enlarged fragmentary perspective view of an inside portion of the guard of FIG. 1;
FIGURE 3 is a fragmentary view similar to FIGURE 1, and showing another mounting means;
FIGURE 4 is a perspective view similar to FIGURE 1 and showing still another mounting means; and
FIGURE 5 is a perspective view with parts broken away of another embodiment of light guard.
As shown in FIGURES 1 and 2 of the drawings, the invention is adapted for use with a horizontal elongated fluorescent lighting fixture 1 having a longitudinal frame 2 with open ends which expose the tube mounting members 3. Fixture 1 may be hung from a ceiling e.
In some instances it may be desired to cover the bottom and the open frame ends of the fixture. For this purpose, a light guard 5 is provided and which comprises an elongated sheet of suitable light-transmissive plastic which is bent upwardly along a transverse line near the ends to form a horizontal base 6and two vertical upstanding end members 7. Base 6 is of slightly greater length and width than fixture 1 and covers the light tubes 8. End members 7 are of greater height than fixture frame 2. The guard will .herefore fit over the fixture from below with ends 7 extending above the frame.
It is desirable that the plastic sheet be clear and relatively flexible rather than brittle. A suitable plastic has been found to be cellulose acetate butyrate. Plexiglas, although slightly more brittle, may also be usable in some installations.
To reinforce guard 5 and also prevent collected debris and dust from falling off the edges of base 6, a pair of lightweight metal angle strips are provided. Each strip comprises a horizontal flange 9 and a vertical flange 10 extending upwardly from adjacent the outer edge of flange 9. The corner between flanges 9 and 10 fits up against the longitudinal edge of base 6. In addition, one of the flanges is extended at each end and bent inwardly 90 so that it forms a brace 11 which fits over an end member 7. In the embodiment shown, each flange 10 is extended to provide a brace 11 at each end. The lower edge of each brace 11 is substantially parallel to and closely adjacent the end edge of the opposite flange 9.
The various elements of each angle strip which are contiguous with the plastic sheet, such as flange 10 and brace 11, are secured to base 6 and flange 9 respectively by a suitable means such as rivets 12.
Patented Mar. 9, 1955 ice The light guard shown in FIGURES 1 and 2 is secured in place beneath fixture 1 by a plurality of cables 13 attached at the top to ceiling 4 and at the bottom to eyelets or hooks 14 which are mounted in flanges ill.
in the embodiment of FIG. 3, hooks 15 are constructed to engage the sides of frame 2 to thereby eliminate cables 13 and hang the guard directly from the fixture.
Iri FIGURE 4 another embodiment is shown wherein guard 5 is suspended on transverse cables 16 which join transversely aligned hooks 17 on the frame and which pass beneath the fixture.
The embodiment of FIGURE 5 may be used in the event it is desired to protect the sides as well as the ends of the fixture. In this instance, light-transmissive plastic side panels 1% are riveted or otherwise secured to vertical flanges it and extend between the edges of end members 7 and to a height similar to the end members. Vertical corner braces 19 are then utilized. Alternatively, panels 13 could be bent up from base 6, as are members 7.
The invention provides a novel light guard which is easy to install and inexpensive to manufacture. Complete protection of and from the light fixture is obtained therewith. In the event of light tube breakage, protection below from shattered glass is provided.
Various modes of carrying out the invention are contemplated as being within the scope of the following claims particularly pointing out and distinctly claiming the subject matter which is regarded as theinvention.
I claim: 1. In combination with an elongated lighting fixture having open ends, a guard comprising:
(a) an elongated sheet of light-transmissive plastic forming a horizontal protective base disposed beneath the fixture,
(b) said base being bent upwardly along a transverse line adjacent each said open end and forming vertical protective end pieces covering the open ends of the fixture,
(c) a lightweight metal reinforcing angle member disposed along each edge of said base and having a horizontal flange and a vertical flange extending upwardly from adjacent the outer edge thereof, the top edge of each said vertical flange being disposed substantially below the top edge of each said protective end piece,
(d) each end of one of said flanges extending beyond the other flange and being bent inwardly to form a brace member having an edge disposed parallel to and closely adjacent the end edge of the other flange,
(e) means securing said horizontal flange to said base and securing said brace member to a respective end piece,
( and means mounting said guard beneath said fixture.
2. The guard of claim 1 in which the mounting means (1) comprises:
(a) a plurality of transversely aligned hooks secured to said fixture;
(b) and cables joining said hooks and suspendingly supporting said guard beneath the fixture.
References Cited in the file of this patent UNITED STATES PATENTS 1,090,795 Schoenhardt Mar. 17, 1914 2,190,898 Van Veen Feb. 20, 1940 2,323,002 Baker June 29, 1943 2,546,190 Koppang et al Mar. 27, 1951 2,659,808 Beckwith Nov. 17, 1953 2,913,571 Smith Nov. 17, 1959

Claims (1)

1. IN COMBINATION WITH AN ELONGATED LIGHTING FIXTURE HAVING OPEN ENDS, A GUARD COMPRISING: (A) AN ELONGATED SHEET OF LIGHT-TRANSMISSIVE PLASTIC FORMING A HORIZONTAL PROTECTIVE BASE DISPOSED BENEATH THE FIXTURE, (B) SAID BASE BEING BENT UPWARDLY ALONG A TRANSVERSE LINE ADJACENT EACH SAID OPEN END AND FORMING VERTICAL PROTECTIVE END PIECE COVERING THE OPEN ENDS OF THE FIXTURE, (C) A LIGHTWEIGHT METAL REINFORCING ANGLE MEMBER DISPOSED ALONG EACH EDGE OF SAID BASE AND HAVING A HORIZONTAL FLANGE AND A VERTICAL FLANGE EXTENDING UPWARDLY FROM ADJACENT THE OUTER EDGE THEREOF, THE TOP EDGE OF SAID SAID VERTICAL FLANGE BEING DISPOSED SUBSTANTIALLY BELOW THE TOP EDGE OF EACH SAID PROTECTIVE END PIECE, (D) EACH END OF ONE OF SAID FLANGES EXTENDING BEYOND THE OTHER FLANGE AN BEING BENT INWARDLY TO FORM A BRACE MEMBER HAVING AN EDGE DISPOSED PARALEL TO AND CLOSELY ADJACENT THE END EDGE OF THE OTHER FLANGE, (E) MEANS SECURING SAID HORIZONTAL FLANGE TO SAID BASE AND SECURING SAID BASE MEMBER TO A RESPECTIVE END PIECE, (F) AND MEANS MOUNTING SAID GUARD BENEATH SAID FIXTURE.
US219560A 1962-08-27 1962-08-27 Lighting fixture with a light guard Expired - Lifetime US3172608A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3330083A (en) * 1963-06-14 1967-07-11 Motobecane Ateliers Suspended platform multi-storey garage
US4386260A (en) * 1980-11-19 1983-05-31 Zellers Mabel W Supporting element for radiant heating module
US4702452A (en) * 1986-09-10 1987-10-27 Leonard Penar Smoke detector mounting
US5075832A (en) * 1989-11-13 1991-12-24 Ronald Pace Safety strap
US20070058379A1 (en) * 2005-08-30 2007-03-15 Laukhuf Gregg E Suspension cable retention method and apparatus for lighting
US7563006B1 (en) 2004-08-02 2009-07-21 Orion Energy Systems, Inc. Fluorescent lamp catcher
US8070312B2 (en) 2004-08-02 2011-12-06 Orion Energy Systems, Inc. Fluorescent light fixture with lamp catcher
USD650225S1 (en) 2009-09-14 2011-12-13 Orion Energy Systems, Inc. Guard for a lighting apparatus
DE202016106102U1 (en) * 2016-10-31 2018-02-01 Rehau Ag + Co lighting device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1090795A (en) * 1913-11-03 1914-03-17 Edward Miller & Company Lighting-fixture.
US2190898A (en) * 1938-10-08 1940-02-20 Pharis Tire & Rubber Company Educational display device
US2323200A (en) * 1941-08-22 1943-06-29 Universal Railway Devices Comp Railway brake
US2546190A (en) * 1946-06-21 1951-03-27 Earl T Koppang Housing and light diffuser for fluorescent fixtures
US2659808A (en) * 1949-06-22 1953-11-17 F W Wakefield Brass Company Combination luminous and acoustical ceiling
US2913571A (en) * 1954-01-04 1959-11-17 Gen Motors Corp Luminous ceiling

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1090795A (en) * 1913-11-03 1914-03-17 Edward Miller & Company Lighting-fixture.
US2190898A (en) * 1938-10-08 1940-02-20 Pharis Tire & Rubber Company Educational display device
US2323200A (en) * 1941-08-22 1943-06-29 Universal Railway Devices Comp Railway brake
US2546190A (en) * 1946-06-21 1951-03-27 Earl T Koppang Housing and light diffuser for fluorescent fixtures
US2659808A (en) * 1949-06-22 1953-11-17 F W Wakefield Brass Company Combination luminous and acoustical ceiling
US2913571A (en) * 1954-01-04 1959-11-17 Gen Motors Corp Luminous ceiling

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3330083A (en) * 1963-06-14 1967-07-11 Motobecane Ateliers Suspended platform multi-storey garage
US4386260A (en) * 1980-11-19 1983-05-31 Zellers Mabel W Supporting element for radiant heating module
US4702452A (en) * 1986-09-10 1987-10-27 Leonard Penar Smoke detector mounting
US5075832A (en) * 1989-11-13 1991-12-24 Ronald Pace Safety strap
US7563006B1 (en) 2004-08-02 2009-07-21 Orion Energy Systems, Inc. Fluorescent lamp catcher
US8070312B2 (en) 2004-08-02 2011-12-06 Orion Energy Systems, Inc. Fluorescent light fixture with lamp catcher
US20070058379A1 (en) * 2005-08-30 2007-03-15 Laukhuf Gregg E Suspension cable retention method and apparatus for lighting
USD650225S1 (en) 2009-09-14 2011-12-13 Orion Energy Systems, Inc. Guard for a lighting apparatus
DE202016106102U1 (en) * 2016-10-31 2018-02-01 Rehau Ag + Co lighting device

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