US2647985A - Illumination fixture and louvers therefor - Google Patents

Illumination fixture and louvers therefor Download PDF

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Publication number
US2647985A
US2647985A US793592A US79359247A US2647985A US 2647985 A US2647985 A US 2647985A US 793592 A US793592 A US 793592A US 79359247 A US79359247 A US 79359247A US 2647985 A US2647985 A US 2647985A
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United States
Prior art keywords
louver
bulbs
housing
louvers
fixture
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Expired - Lifetime
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US793592A
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David J Biller
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Day Brite Lighting Inc
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Day Brite Lighting Inc
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Priority to US793592A priority Critical patent/US2647985A/en
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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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
    • 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
    • F21Y2113/00—Combination of light sources

Definitions

  • This invention relates to illumination fixtures and louvers therefor and is more particularly directed to a louver construction to be associated with recessed ceiling fixtures to provide for a better dilfusion of the light emanating from the lamp bulbs installed in the fixture.
  • One of the objects of this invention is to provide a louver construction for a light fixture which will be strong and rigid and which will provide for a higher degree of difiusion of the light rays that originate in the fixture.
  • Another object of the invention is to provide a lighting fixture providing for a combination of incandescent and fluorescent light fixtures.
  • Fig. 1 is a perspective plan view of a light fixture embodying my invention
  • Fig. 2 is a vertical sectional view of a portion of the light fixture taken substantially along the line 22 of Fig. 1,
  • Fig. 3 shows a bottom plan view of the louver
  • Fig. 4 is a vertical sectional view of a portion of the light fixture taken substantially along the line 4-4 of Fig. 1,
  • Fig. 5 is a detail view of the louver latching mechanism
  • Fig. 6 is a perspective view of a modified form of light fixture.
  • Fig. 7 is a view taken line 1-1 of Fig. 6.
  • the numeral I designates generally the housing for a light fixture that is to be installed in a ceiling or other suitable location.
  • Suitable holding means in the substantially along the upper part of the housing are provided for the installation of sources of illumination, such as fiourescent lamp bulbs 2 and incandescent lamp bulbs 3 as well as inverted trough reflectors 4 for the fiourescent bulb and glass reflectors 5 for each incandescent bulb.
  • sources of illumination such as fiourescent lamp bulbs 2 and incandescent lamp bulbs 3
  • inverted trough reflectors 4 for the fiourescent bulb and glass reflectors 5 for each incandescent bulb.
  • the use of a glass refiector for bulb 3 prevents interference with the transmission of light rays from the fluorescent bulb when the incandescent bulb is not in use and produces a smooth overall lighting effect.
  • housing I also contains suitable electrical circuits and equipment for the bulbs, all of which is well known in the art.
  • Figure 3 shows the arrangement of the incandescent bulbs in the fixture. These bulbs are preferably disposed directly above louver openings and are arranged on a square or other pattern and produce a smooth overall lightefiect.
  • the fluorescent bulbs and their reflectors extend all the way across the fixture.
  • the fixture presents a definite clear cut two-color pattern of lightbased upon bulb 3 layouts when all lamps are in operation. This color pattern may be varied by properly choosing the desired combination of incandescent and fiourescent bulbs and the .color thereof, thereby altering the overall color effect.
  • the louver assembly is indicated at 6 and is mounted in the housing I.
  • This assembly is pivotally supported in housing I by means of a plurality of hinges 1, a part of each hinge being secured to the housing and the other part being secured to the louver 6.
  • the hinge is suitably secured to a reinforced part of the louver to pro videabetter assembly.
  • the louver 6 comprises a rectangular frame member II in which louver members 9 and H) are installed.
  • Each of these louver members is preferably formed by bending a piece of sheet material into a U shape so that the legs or walls thereof are connected together by a rounded portion.
  • These U members are then suitably notched, one from the top and the other from the bottom at uniformly spaced intervals to enable them to interfit in a manner well known in egg crate filler constructions to thereby form a plurality of rectangular louver openings.
  • the lines 9' and I0 indicate the base of the notches cut in each louver member.
  • the ends of the members 9 and H] are secured to the walls of the frame member II by tack welding or any other appropriate securing means.
  • Louver 6 is latched in position in housing I by means of a screw 8 threaded into a bracket l secured to housing I, the screw being threaded into a flange formed on louver 6.
  • each of the U members is preferably provided with a white coating which may be a variety of enamel.
  • the U-shaped louver structural members prevent glare by causing a greater difiusion of light rays
  • the sides and rounded ends of the U members prevent direct rays from striking the work surface by reflecting them back and forth between the louver walls, thereby increasing the diffusing ability of the light fixture.
  • FIGS 6 and 7 show a modified form of light fixture l I provided with a housing [2 organized generally along the lines of housing I in which the customary fluorescent tubes 1 3 and other electrical equipment are assembled.
  • the louver M' consists of two longitudinally extended U-shaped members I5 provided with a rounded lower edge and a plurality of transversely arranged single thickness louver members 6, these members being combined after the manner of egg crate fillers tors for each of said fluorescent bulbs; glassre fiectors for each of said incandescent bulbs, said glass reflectors extending through the reflectors for said fluorescent bulbs; and a louver formed from U-shaped wall sections'and rectangular openings fitted in said housing and so arranged that each of saidincandescent bulbs is disposed 2.
  • A' light fixture comprising a rectangular housing; a plurality of fluorescent bulbs in said housing; a plurality of incandescent bulbs in said housingsaid bulbs being arranged in a rectanguiar pattern in said housing; reflectors for each of said fluorescent bulbs; glass reflectors for each of said incandescent bulbs located to extend through'the reflectors for the fluorescent bulbs; a louver frarne hinged tosaid housing and disposed-bpposite said bulbs; and louvers in said frame formed from U-shaped wall'sections the legs of which are spaced apart and connected by a rounded end that extends downwardly, said louvers being assembled in'said frame so as to form rectangular'louve'ropenings, each of said incandescent "bulbs disposed-directly opposite a louver opening to thereby project a definite light pattern.
  • a light fixture comprising a rectangular provided" 'Wlth directly opposite a louver opening to thereby project a preselected light pattern from" housing; a plurality of fluorescent bulbs in said housing; a plurality of incandescent bulbs in said housing, said bulbs being arranged between adjacent pairs of fluorescent bulbs in said housing; reflectors for each of said fluorescent bulbs; glass reflectors for each of said incandescent bulbs, said glass reflectors extending through the fluorescent reflectors: a louver frame hinged to said housing and disposed opposite said bulbs; and louvers in said frame formed from U-shaped wall sections the legs of which are spaced apart and wardly, said louvers being assembled in said fra e connected by a rounded end that extends dowrg:l

Description

Aug. 4, 1953 D. J. BILLER 2,647,985
ILLUMINATION FIXTURE AND LOUVERS.THEREFOR Filed Dec. 24, 1947 2 Sheets-Sheet l HIS ATTORNEYYS.
gmipym razl D. J. BILLER Aug. 4, 1953 IXTURE AND LOUVERS THEREFOR ILLUMINATION F Filed D80. 24, 1947 2 Sheets-Sheet 2 3M9 Gavel/M HIS ATTORNEYS.
Patented Aug. 4, 1 953 ILLUMINATION FIXTURE AND LOUVERS THEREFOR 7 David J. Biller, St. Loui Brite Lighting, Inc., tion of Missouri s, Mo., assignor to Day- St. Louis, Mo., a corpora- Application December 24, 1947, Serial No. 793,592
3 Claims. (01. zero-51.11)
This invention relates to illumination fixtures and louvers therefor and is more particularly directed to a louver construction to be associated with recessed ceiling fixtures to provide for a better dilfusion of the light emanating from the lamp bulbs installed in the fixture.
One of the objects of this invention is to provide a louver construction for a light fixture which will be strong and rigid and which will provide for a higher degree of difiusion of the light rays that originate in the fixture.
Another object of the invention is to provide a lighting fixture providing for a combination of incandescent and fluorescent light fixtures.
In the drawings:
Fig. 1 is a perspective plan view of a light fixture embodying my invention,
Fig. 2 is a vertical sectional view of a portion of the light fixture taken substantially along the line 22 of Fig. 1,
Fig. 3 shows a bottom plan view of the louver,
Fig. 4 is a vertical sectional view of a portion of the light fixture taken substantially along the line 4-4 of Fig. 1,
Fig. 5 is a detail view of the louver latching mechanism,
Fig. 6 is a perspective view of a modified form of light fixture; and
Fig. 7 is a view taken line 1-1 of Fig. 6.
Referring to the drawings, the numeral I designates generally the housing for a light fixture that is to be installed in a ceiling or other suitable location. Suitable holding means in the substantially along the upper part of the housing are provided for the installation of sources of illumination, such as fiourescent lamp bulbs 2 and incandescent lamp bulbs 3 as well as inverted trough reflectors 4 for the fiourescent bulb and glass reflectors 5 for each incandescent bulb. The use of a glass refiector for bulb 3 prevents interference with the transmission of light rays from the fluorescent bulb when the incandescent bulb is not in use and produces a smooth overall lighting effect.
The upper part of housing I also contains suitable electrical circuits and equipment for the bulbs, all of which is well known in the art.
Figure 3 shows the arrangement of the incandescent bulbs in the fixture. These bulbs are preferably disposed directly above louver openings and are arranged on a square or other pattern and produce a smooth overall lightefiect. The fluorescent bulbs and their reflectors extend all the way across the fixture. The fixture presents a definite clear cut two-color pattern of lightbased upon bulb 3 layouts when all lamps are in operation. This color pattern may be varied by properly choosing the desired combination of incandescent and fiourescent bulbs and the .color thereof, thereby altering the overall color effect.
The louver assembly is indicated at 6 and is mounted in the housing I. This assembly is pivotally supported in housing I by means of a plurality of hinges 1, a part of each hinge being secured to the housing and the other part being secured to the louver 6. The hinge is suitably secured to a reinforced part of the louver to pro videabetter assembly.
The louver 6 comprises a rectangular frame member II in which louver members 9 and H) are installed. Each of these louver members is preferably formed by bending a piece of sheet material intoa U shape so that the legs or walls thereof are connected together by a rounded portion. These U members are then suitably notched, one from the top and the other from the bottom at uniformly spaced intervals to enable them to interfit in a manner well known in egg crate filler constructions to thereby form a plurality of rectangular louver openings. The lines 9' and I0 indicate the base of the notches cut in each louver member. The ends of the members 9 and H] are secured to the walls of the frame member II by tack welding or any other appropriate securing means. Louver 6 is latched in position in housing I by means of a screw 8 threaded into a bracket l secured to housing I, the screw being threaded into a flange formed on louver 6.
The outside surface of each of the U members is preferably provided with a white coating which may be a variety of enamel. The U-shaped louver structural members prevent glare by causing a greater difiusion of light rays The sides and rounded ends of the U members prevent direct rays from striking the work surface by reflecting them back and forth between the louver walls, thereby increasing the diffusing ability of the light fixture.
Figures 6 and 7 show a modified form of light fixture l I provided with a housing [2 organized generally along the lines of housing I in which the customary fluorescent tubes 1 3 and other electrical equipment are assembled. The louver M' consists of two longitudinally extended U-shaped members I5 provided with a rounded lower edge and a plurality of transversely arranged single thickness louver members 6, these members being combined after the manner of egg crate fillers tors for each of said fluorescent bulbs; glassre fiectors for each of said incandescent bulbs, said glass reflectors extending through the reflectors for said fluorescent bulbs; and a louver formed from U-shaped wall sections'and rectangular openings fitted in said housing and so arranged that each of saidincandescent bulbs is disposed 2. A' light fixture comprising a rectangular housing; a plurality of fluorescent bulbs in said housing; a plurality of incandescent bulbs in said housingsaid bulbs being arranged in a rectanguiar pattern in said housing; reflectors for each of said fluorescent bulbs; glass reflectors for each of said incandescent bulbs located to extend through'the reflectors for the fluorescent bulbs; a louver frarne hinged tosaid housing and disposed-bpposite said bulbs; and louvers in said frame formed from U-shaped wall'sections the legs of which are spaced apart and connected by a rounded end that extends downwardly, said louvers being assembled in'said frame so as to form rectangular'louve'ropenings, each of said incandescent "bulbs disposed-directly opposite a louver opening to thereby project a definite light pattern.
3. A light fixture comprising a rectangular provided" 'Wlth directly opposite a louver opening to thereby project a preselected light pattern from" housing; a plurality of fluorescent bulbs in said housing; a plurality of incandescent bulbs in said housing, said bulbs being arranged between adjacent pairs of fluorescent bulbs in said housing; reflectors for each of said fluorescent bulbs; glass reflectors for each of said incandescent bulbs, said glass reflectors extending through the fluorescent reflectors: a louver frame hinged to said housing and disposed opposite said bulbs; and louvers in said frame formed from U-shaped wall sections the legs of which are spaced apart and wardly, said louvers being assembled in said fra e connected by a rounded end that extends dowrg:l
'so as to form'rectangular louver openings, ea of said incandescent bulbs disposed directly opposite a louver opening to thereby project a predetermined light pattern.
DAVID J. BILLER.
References Cited inthe file of this patent UNITED STATES PATENTS Number Name Date 901,294 Hewitt Oct. 13, 1908 1,324,008; DHurn-y Dec. 2, 1919 2,134,491 Sibbert Oct. 25, 1-938 2,250,9 5 4 Hagerty'et a1 July 29, 1941 2,282,445 Alderman et al. May 12, 1942 2,299,256 Schultz Oct. 20, 1942 2,313,131 Elias Mar. 9, 1943 2,337,437 Allen Dec. 21, 1-943 2,358,811 Kloner -Sept. 26, 1944 2,398,624; Decker Apr. 16, 1946 2,429,141 Taylor Oct. 14, 194': 2,565,435 Leinen n; Aug. 21, 1951 FOREIGN PATENTS Number Country Date 446,954 Great Britain May 8, 1936
US793592A 1947-12-24 1947-12-24 Illumination fixture and louvers therefor Expired - Lifetime US2647985A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798942A (en) * 1954-01-27 1957-07-09 David H Mason Illuminating fixture with changeable screen
US2831966A (en) * 1954-04-19 1958-04-22 Analite Corp Lighting fixtures
US2937265A (en) * 1958-02-10 1960-05-17 Blitzer Bud Cellular lighting element and means for supporting the same
US2951611A (en) * 1956-04-23 1960-09-06 Lighting Products Inc Electric lighting fixtures
US2991708A (en) * 1959-06-19 1961-07-11 Day Brite Lighting Inc Combined space lighting and ventilating apparatus
US2993115A (en) * 1957-09-06 1961-07-18 Maurice C Rosenblatt Light diffuser for fluorescent lighting fixture
US3539801A (en) * 1967-04-03 1970-11-10 Mitchell Bobrick Light fixture
US3928757A (en) * 1972-05-26 1975-12-23 Paul Nelson Spot light fixture
DE3147113A1 (en) * 1981-11-27 1983-06-01 Siegfried 8000 München Saumweber Double plate having luminous elements
USD411031S (en) * 1997-10-24 1999-06-15 Mitchell Conn Lighting fixture louver
US6632002B1 (en) * 1995-12-14 2003-10-14 Charles R. Chubb Skin light exposure control methods
US6705743B1 (en) 2002-07-18 2004-03-16 Ismail A Elembaby Display light apparatus
US20080192490A1 (en) * 2007-02-13 2008-08-14 Jeffrey Alan Brown Recessed Lighting Fixture with Alignment Enhancements and Methods for Mounting Same
USD829953S1 (en) * 2016-12-30 2018-10-02 Simes S.P.A. Recessed lamp
USD913559S1 (en) * 2018-10-15 2021-03-16 Simes S.P.A. Wall and ceiling lamp

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US901294A (en) * 1908-10-13 Cooper Hewitt Electric Co Apparatus for electric lighting.
US1324008A (en) * 1919-12-02 Hilxtmiktatrng device
GB446954A (en) * 1935-10-25 1936-05-08 Hugh Mackay Improvements relating to anti-dazzle devices for vehicle headlights
US2134491A (en) * 1936-02-06 1938-10-25 S H Kress And Company Art of illumination
US2250954A (en) * 1937-12-31 1941-07-29 Adlake Co Continuous lighting fixture
US2282445A (en) * 1940-05-09 1942-05-12 R & W Wiley Inc Lighting fixture
US2299256A (en) * 1940-05-25 1942-10-20 Richard R Schultz Lighting fixture
US2313131A (en) * 1941-02-26 1943-03-09 Michael Angelo Elias Lighting fixture
US2337437A (en) * 1941-04-18 1943-12-21 Gen Electric Lighting fixture
US2358811A (en) * 1941-12-18 1944-09-26 Irving I Kloner Louver for lighting fixtures
US2398624A (en) * 1943-12-17 1946-04-16 Pennsylvania Railroad Co Light transmitting element
US2429141A (en) * 1944-12-29 1947-10-14 Mcstay Jackson And Company Light shield for tubular illuminators
US2565435A (en) * 1946-05-03 1951-08-21 Benjamin Electric Mfg Co Baffle and reflector for lighting fixtures

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US901294A (en) * 1908-10-13 Cooper Hewitt Electric Co Apparatus for electric lighting.
US1324008A (en) * 1919-12-02 Hilxtmiktatrng device
GB446954A (en) * 1935-10-25 1936-05-08 Hugh Mackay Improvements relating to anti-dazzle devices for vehicle headlights
US2134491A (en) * 1936-02-06 1938-10-25 S H Kress And Company Art of illumination
US2250954A (en) * 1937-12-31 1941-07-29 Adlake Co Continuous lighting fixture
US2282445A (en) * 1940-05-09 1942-05-12 R & W Wiley Inc Lighting fixture
US2299256A (en) * 1940-05-25 1942-10-20 Richard R Schultz Lighting fixture
US2313131A (en) * 1941-02-26 1943-03-09 Michael Angelo Elias Lighting fixture
US2337437A (en) * 1941-04-18 1943-12-21 Gen Electric Lighting fixture
US2358811A (en) * 1941-12-18 1944-09-26 Irving I Kloner Louver for lighting fixtures
US2398624A (en) * 1943-12-17 1946-04-16 Pennsylvania Railroad Co Light transmitting element
US2429141A (en) * 1944-12-29 1947-10-14 Mcstay Jackson And Company Light shield for tubular illuminators
US2565435A (en) * 1946-05-03 1951-08-21 Benjamin Electric Mfg Co Baffle and reflector for lighting fixtures

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798942A (en) * 1954-01-27 1957-07-09 David H Mason Illuminating fixture with changeable screen
US2831966A (en) * 1954-04-19 1958-04-22 Analite Corp Lighting fixtures
US2951611A (en) * 1956-04-23 1960-09-06 Lighting Products Inc Electric lighting fixtures
US2993115A (en) * 1957-09-06 1961-07-18 Maurice C Rosenblatt Light diffuser for fluorescent lighting fixture
US2937265A (en) * 1958-02-10 1960-05-17 Blitzer Bud Cellular lighting element and means for supporting the same
US2991708A (en) * 1959-06-19 1961-07-11 Day Brite Lighting Inc Combined space lighting and ventilating apparatus
US3539801A (en) * 1967-04-03 1970-11-10 Mitchell Bobrick Light fixture
US3928757A (en) * 1972-05-26 1975-12-23 Paul Nelson Spot light fixture
DE3147113A1 (en) * 1981-11-27 1983-06-01 Siegfried 8000 München Saumweber Double plate having luminous elements
US6632002B1 (en) * 1995-12-14 2003-10-14 Charles R. Chubb Skin light exposure control methods
USD411031S (en) * 1997-10-24 1999-06-15 Mitchell Conn Lighting fixture louver
US6705743B1 (en) 2002-07-18 2004-03-16 Ismail A Elembaby Display light apparatus
US20080192490A1 (en) * 2007-02-13 2008-08-14 Jeffrey Alan Brown Recessed Lighting Fixture with Alignment Enhancements and Methods for Mounting Same
US8727582B2 (en) 2007-02-13 2014-05-20 Abl Ip Holding Llc Recessed lighting fixture with alignment enhancements and methods for mounting same
USD829953S1 (en) * 2016-12-30 2018-10-02 Simes S.P.A. Recessed lamp
USD913559S1 (en) * 2018-10-15 2021-03-16 Simes S.P.A. Wall and ceiling lamp

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