US2022222A - Electric lighting fixture - Google Patents

Electric lighting fixture Download PDF

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Publication number
US2022222A
US2022222A US731729A US73172934A US2022222A US 2022222 A US2022222 A US 2022222A US 731729 A US731729 A US 731729A US 73172934 A US73172934 A US 73172934A US 2022222 A US2022222 A US 2022222A
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United States
Prior art keywords
reflector
ceiling
outlet box
fixture
lighting fixture
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Expired - Lifetime
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US731729A
Inventor
Marlvan J Sullivan
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Individual
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Priority to US731729A priority Critical patent/US2022222A/en
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    • 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
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • 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
    • F21V17/12—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 by screwing
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • 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

Definitions

  • This invention relates to ceiling fixtures designed for use in rooms with limited ceiling height and other places wherev it is necessary or desirable that the fixture be such as to not project far below the surface of the ceiling.
  • An object of the present invention is to provide a ceiling fixture of the above kind which is simple and durable in construction, economical to manufacture and install, and efficient in use.
  • a more specific object of the present invention is to provide a ceiling fixture of the above kind having a novel form of reflector substantially possessing the efficiency and desirable characteristics of a circular refiector although capable of more economical production, and permitting the use of a relatively inexpensive rectangular face plate and rectangular lens or light transmitting closure plate in connection therewith.
  • Figure 1 is a central vertical sectional View of a lighting fixture constructed in accordance with the present invention and installed in operative relation to the ceiling of a room.
  • Figure 2 is a top plan View of the fixture detached from the outlet box.
  • Figure 3 is a bottom plan view thereof.
  • Figure 4 is a perspective view of the face plate for securing the lens or closure plate of the xture in place and providing a finished appearance about the opening cut in the ceiling.
  • the. fixture includes a reflector 5 of general frusto-pyramidal form, but with the vertical or longitudinal corner portions thereof rounded as at 6 to provide the reflector with a circular smaller upper end and a rectangular larger lower end, the body of the reflector thereby consisting of flat triangular sides 'I which taper narrower in an upward direction and which are connected by the rounded corner portions 6 which taper wider in an upper direction.
  • the reector is provided at its smaller upper end with a circular end wall 8 formed with a relatively large central opening 9 and provided with inwardly projecting ears I0 to facilitate rigid bolting of the reflector to the bottom of an ordinary outlet box Il as at I2.
  • the end wall 8 is of somewhat larger diameter than the outlet box II, and the projecting outer marginal portion of the wall 8 is provided with a circular series of openings I3 for Ventilating purposes.
  • the outlet box I I is supported by a joist or other suitable means I4 above the ceiling I5, the reflector 5 being set in an opening I6 provided in the ceiling I 5 and being supported by the outlet box in a position wherein the mouth or open lower endA of the reflector projects through the ceiling opening I6 a very slight distance below said ceiling.
  • the lower end of the reflector is provided with flat outturned side flanges Il arranged to project parallel With and beneath the portion of the ceiling I5 about its opening I6, and bolted at I8 to the under sides of these flanges I1 is an open rectangular finishing frame or plate which projects outwardly beyond the outer edges of the flanges Il and terminates in an upwardly and inwardly rolled outer edge portion adapted to contact the ceiling I5 and afford a nished appearance to the fixture when installed, with the opening I6 in the ceiling entirely obscured.
  • the inner marginal edge portion of the nishing frame I9 is downwardly offset as at 2l to form a seat, and engaged at its margin in this seat is a flat rectangular lens or closure plate 22 for the mouth or bottom of the reflector 5.
  • the nishing frame I9 rmly clamps the margin of the lens or closure plate 22 against the flanges I'I on the bottom of the reflector 5, and it will be understood that the lens or closure plate 22 may be made of any suitable light transmitting material, either of a clear or light refracting character.
  • the outlet box II has the usual side aperture for reception of a conduit 23 containing wires 24 having their ends suitably fastened to the usual terminal of a lamp socket 25 suitably supported by the outlet box II immediately below the latter and within the upper end of the reflector 5.
  • the socket 25 may be directly carried and supported by a closure plate 26 for the outlet box lI and bolted against the under side of end wall 8 of the reflector and to the outlet box I I by the same means I2 which secures the reflector to the outlet box.
  • the socket 25 carries an ordinary electric bulb 2l which depends within the reiector 5 toward the lens or closure plate 22.
  • a tapered one-piece reector having its larger lower end outwardly flanged and arranged substantially flush with the surface of the wall and provided at its smaller upper end with a at end wall provided with a central opening and with ears projecting inwardly of said opening to facilitate rigid bolting of said end wall directly to the bottom of a conventional outlet box, a light transmitting closure plate seated against the outwardly flanged lower end of the reflector, and a finishing plate secured to the outwardly flanged lower end of the reflector and clamping said closure plate in place, said flat end wall at the smaller upper end of the reflector being of a size to extend outwardly beyond the sides of the outlet box and provided with Ventilating openings.
  • a reflector of general frusto-pyramidal form having flat sides and rounded longitudinal corner portions tapered in opposite directions to provide the reflector with a circular smaller upper end and a rectangular larger lower end, means to rigidly fasten the smaller end of the reflector directly to the bottom of a conventional outlet box for :supporting the reector with its lower A end substantially flush with the surface of the wall, said reflector having its larger lower end outwardly flanged, a light transmitting closure plate of rectangular form seated against the outwardly flanged lower end of the reflector, and a rectangular finishing plate secured to the outwardly flanged lower end of the reflector and securing the closure plate in place.

Description

Nov. 26, 1935. M. J. SULLIVAN ELECTRIC LIGHTING FIXTURE 2 sheeis-sheet 1 vFiled June 21, 1934 umm Nov. 26, 1935. M. J. SULLIVAN ELECTRIC LIGHTING FIXTURE 2 Shets-Sheet 2 Filed June 2l, 1954 llili/.--L I Patented Nov. 26, 1935 UNITED. STATES PATENT OFFICE Y ELECTRIC LIGHTING FIXTRE Marlvan J. Sullivan, Atlanta, Ga.
Application June 21, 1934, Serial No. 731,729 2 claims. (c1. 24o-78)v This invention relates to ceiling fixtures designed for use in rooms with limited ceiling height and other places wherev it is necessary or desirable that the fixture be such as to not project far below the surface of the ceiling.
An object of the present invention is to provide a ceiling fixture of the above kind which is simple and durable in construction, economical to manufacture and install, and efficient in use.
A more specific object of the present invention is to provide a ceiling fixture of the above kind having a novel form of reflector substantially possessing the efficiency and desirable characteristics of a circular refiector although capable of more economical production, and permitting the use of a relatively inexpensive rectangular face plate and rectangular lens or light transmitting closure plate in connection therewith.
Other objects and features of the invention are attained by the novel construction, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawings, and claimed.
In the drawings:
Figure 1 is a central vertical sectional View of a lighting fixture constructed in accordance with the present invention and installed in operative relation to the ceiling of a room.
Figure 2 is a top plan View of the fixture detached from the outlet box.
Figure 3 is a bottom plan view thereof; and
Figure 4 is a perspective view of the face plate for securing the lens or closure plate of the xture in place and providing a finished appearance about the opening cut in the ceiling.
Referring in detail to the drawings, the. fixture includes a reflector 5 of general frusto-pyramidal form, but with the vertical or longitudinal corner portions thereof rounded as at 6 to provide the reflector with a circular smaller upper end and a rectangular larger lower end, the body of the reflector thereby consisting of flat triangular sides 'I which taper narrower in an upward direction and which are connected by the rounded corner portions 6 which taper wider in an upper direction. The reector is provided at its smaller upper end with a circular end wall 8 formed with a relatively large central opening 9 and provided with inwardly projecting ears I0 to facilitate rigid bolting of the reflector to the bottom of an ordinary outlet box Il as at I2. The end wall 8 is of somewhat larger diameter than the outlet box II, and the projecting outer marginal portion of the wall 8 is provided with a circular series of openings I3 for Ventilating purposes.
In installing the fixture, it is to be understood that the outlet box I I is supported by a joist or other suitable means I4 above the ceiling I5, the reflector 5 being set in an opening I6 provided in the ceiling I 5 and being supported by the outlet box in a position wherein the mouth or open lower endA of the reflector projects through the ceiling opening I6 a very slight distance below said ceiling.
The lower end of the reflector is provided with flat outturned side flanges Il arranged to project parallel With and beneath the portion of the ceiling I5 about its opening I6, and bolted at I8 to the under sides of these flanges I1 is an open rectangular finishing frame or plate which projects outwardly beyond the outer edges of the flanges Il and terminates in an upwardly and inwardly rolled outer edge portion adapted to contact the ceiling I5 and afford a nished appearance to the fixture when installed, with the opening I6 in the ceiling entirely obscured.
` The inner marginal edge portion of the nishing frame I9 is downwardly offset as at 2l to form a seat, and engaged at its margin in this seat is a flat rectangular lens or closure plate 22 for the mouth or bottom of the reflector 5. The nishing frame I9 rmly clamps the margin of the lens or closure plate 22 against the flanges I'I on the bottom of the reflector 5, and it will be understood that the lens or closure plate 22 may be made of any suitable light transmitting material, either of a clear or light refracting character.
The outlet box II has the usual side aperture for reception of a conduit 23 containing wires 24 having their ends suitably fastened to the usual terminal of a lamp socket 25 suitably supported by the outlet box II immediately below the latter and within the upper end of the reflector 5. As shown, the socket 25 may be directly carried and supported by a closure plate 26 for the outlet box lI and bolted against the under side of end wall 8 of the reflector and to the outlet box I I by the same means I2 which secures the reflector to the outlet box. The socket 25 carries an ordinary electric bulb 2l which depends within the reiector 5 toward the lens or closure plate 22.
From the foregoing description, it will be seen that I have provided a lighting xture by means of which the stated objects of the invention are effectively carried out, and it will be noted that the construction provides for ready separation or assembly of the parts for cleaning or repair or installation. Various changes in the details of construction illustrated and described may be resorted to as fall fairly within the spirit and scope of the invention as claimed.
What I clairn as new is:
1. In a wall fixture of the character described, a tapered one-piece reector having its larger lower end outwardly flanged and arranged substantially flush with the surface of the wall and provided at its smaller upper end with a at end wall provided with a central opening and with ears projecting inwardly of said opening to facilitate rigid bolting of said end wall directly to the bottom of a conventional outlet box, a light transmitting closure plate seated against the outwardly flanged lower end of the reflector, and a finishing plate secured to the outwardly flanged lower end of the reflector and clamping said closure plate in place, said flat end wall at the smaller upper end of the reflector being of a size to extend outwardly beyond the sides of the outlet box and provided with Ventilating openings.
2. In a wall fixture of the character described, a reflector of general frusto-pyramidal form having flat sides and rounded longitudinal corner portions tapered in opposite directions to provide the reflector with a circular smaller upper end and a rectangular larger lower end, means to rigidly fasten the smaller end of the reflector directly to the bottom of a conventional outlet box for :supporting the reector with its lower A end substantially flush with the surface of the wall, said reflector having its larger lower end outwardly flanged, a light transmitting closure plate of rectangular form seated against the outwardly flanged lower end of the reflector, and a rectangular finishing plate secured to the outwardly flanged lower end of the reflector and securing the closure plate in place.
MARLVAN J. SULLIVAN. l0
US731729A 1934-06-21 1934-06-21 Electric lighting fixture Expired - Lifetime US2022222A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518724A (en) * 1947-03-11 1950-08-15 Miller Co Inbuilt lighting equipment
US2557129A (en) * 1948-06-01 1951-06-19 Toole Woodward Engineering Com Spot lighting unit
US2630521A (en) * 1949-09-22 1953-03-03 Kirlin Company Enclosed lamp receptacle with outlet box attached
US2955196A (en) * 1959-01-07 1960-10-04 Art Metal Company Lighting fixture
US4520436A (en) * 1983-03-25 1985-05-28 Nrg Inc. Mn Lamp apparatus
US4704664A (en) * 1983-03-25 1987-11-03 Scientific Component System, Inc. Lamp apparatus
US4922393A (en) * 1983-03-25 1990-05-01 Scientific Component Systems, Inc. Lamp apparatus
DE4003895A1 (en) * 1990-02-09 1991-08-14 Kickelbick Ferdinand Low-voltage halogen lamp e.g. for kitchen cabinet - is associated with concave reflector and heat sink for dissipation from cabinet floor into underlying space
DE19635299C1 (en) * 1996-08-31 1998-03-12 Wilfried Poellet Built-in light, particularly for ceiling
EP1450098A3 (en) * 2003-02-21 2007-09-19 tecnolight Leuchten GmbH Recessed lumunaire
WO2007107401A1 (en) * 2006-03-21 2007-09-27 BSH Bosch und Siemens Hausgeräte GmbH Component for mounting on a wall and appliance housing equipped therewith
US20090313911A1 (en) * 2008-06-23 2009-12-24 Juno Manufacturing, Inc. Recessed lighting finish trim

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518724A (en) * 1947-03-11 1950-08-15 Miller Co Inbuilt lighting equipment
US2557129A (en) * 1948-06-01 1951-06-19 Toole Woodward Engineering Com Spot lighting unit
US2630521A (en) * 1949-09-22 1953-03-03 Kirlin Company Enclosed lamp receptacle with outlet box attached
US2955196A (en) * 1959-01-07 1960-10-04 Art Metal Company Lighting fixture
US4520436A (en) * 1983-03-25 1985-05-28 Nrg Inc. Mn Lamp apparatus
US4704664A (en) * 1983-03-25 1987-11-03 Scientific Component System, Inc. Lamp apparatus
US4922393A (en) * 1983-03-25 1990-05-01 Scientific Component Systems, Inc. Lamp apparatus
DE4003895A1 (en) * 1990-02-09 1991-08-14 Kickelbick Ferdinand Low-voltage halogen lamp e.g. for kitchen cabinet - is associated with concave reflector and heat sink for dissipation from cabinet floor into underlying space
DE19635299C1 (en) * 1996-08-31 1998-03-12 Wilfried Poellet Built-in light, particularly for ceiling
EP1450098A3 (en) * 2003-02-21 2007-09-19 tecnolight Leuchten GmbH Recessed lumunaire
WO2007107401A1 (en) * 2006-03-21 2007-09-27 BSH Bosch und Siemens Hausgeräte GmbH Component for mounting on a wall and appliance housing equipped therewith
US20090313911A1 (en) * 2008-06-23 2009-12-24 Juno Manufacturing, Inc. Recessed lighting finish trim

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