Abstract: A travelling lighting system for a greenhouse includes a plurality of lamps supported on an elongated truss which is slowly advanced back and forth across a greenhouse bay to provide lighting for the plants therein. The truss may be supported by trolleys carried in a pair of parallel spaced apart tracks extending the length of the greenhouse bay. A power drive system advances the truss along the tracks. A power cord support rail may be provided above the truss to collect and support the electrical power cord to the truss at spaced apart locations along the cord to prevent sagging as the truss is advanced toward the electrical power source.

Abstract: A lighting fitting for an incandescent lighting arrangement with a pair of incandescent bulbs, includes a lampshade body and a mounting bracket. The lampshade body is formed from molding plastics, and has an upper wall that defines a central through hole, and a skirt portion that extends downwardly and divergently from the periphery defining the upper wall. The mounting bracket includes an elongated middle portion which is formed with a mounting hole aligned with the through hole, and which has a distal wide surface and a proximate wide surface relative to the upper wall, and first and second end portions which are in line with and disposed at opposite ends of the middle portion. The first and second end portions are bent to an acute angle relative to and toward the distal wide surface of the middle portion along two parallel lines which incline at a predetermined angle relative to a vertical line that crosses a longitudinal direction of the middle portion so as to form first and second anchoring surfaces.

Abstract: A lighting apparatus comprises a circular fluorescent lamp having inner and outer circular portions arranged coaxially and having outer diameters different each other, the inner circular portion having an outer meter of 285 mm to 310 mm and comprising a first arc tube having a tube diameter of 15 mm to 21 mm and the outer circular portion having an outer diameter of 360 to 390 mm comprising a second arc tube having a tube diameter of 15 to 21 mm. The lighting apparatus further comprises an apparatus body to which the circular fluorescent lamp is assembled. The apparatus body is provided with light reflection member adapted to reflect a light from the fluorescent lamp means.

Abstract: A bell-shaped Christmas tree light cover system is provided including a plurality of cylindrical bulb sockets electrically connected to and spacedly coupled along a wire which is coupleable to a power source. Each socket has an aperture formed in an end thereof opposite the wire for releasably receiving a small bulb therein and illuminating the same. A plurality of bell shaped housings are provided each constructed from a transparent material and having a circular aperture formed in an apex thereof for removably receiving one of the bulb sockets. Finally, mounting mechanisms for precluding the removal of the sockets from the respective housings are included.

Abstract: A light fixture for mounting to the switch housing of a ceiling fan is provided for giving the light fixture an integral appearance with the ceiling fan. The light fixture has a hollow base which has an upper surface and a bottom which are spaced apart. The upper surface of light fixture is defined by a periphery which is surrounded by an upper portion of the base. The upper portion and upper surface define a recess for receiving the lower portion of the switch housing. In another embodiment, a light pan is mounted to the bottom of the base. The light pan is a circular member having a lower surface and a substantially flat inner portion. The pan is provided with an upwardly extending outer flange located around the periphery. The pan has a diameter which is substantially greater than the width of the base so that the base is not visible when viewed from below. A light or lights are attached to the lower surface of the light pan.

Abstract: A frame for a louver holds the louver below the ceiling surface, away from a light fixture. This helps to collimate the light rays and direct the light downward, thus preventing unwanted sideways glare. In addition, the use of a frame tends to hold the louver more securely in the ceiling framework. The frame is formed of Z-shaped members, with one arm of the Z resting on the T-bar cross-bar and the other arm supporting the louver. A stop along one side of the frame prevents movement of the louver in the frame. In one aspect of the invention, rotatable angle supports at the ends of the frame rotate from a vertical position for use during louver installation to a horizontal supporting position for supporting the louver in the frame.

Abstract: A sign body has light transmitting side panels for displaying information. The panels are arranged adjacent each other in a relationship that provides a top opening for entry between the panels of light emitted from fluorescent tubes in a light fixture mounted in the ceiling of a room. A reel having a spindle on which a web similar to a household window shade is wound. The sign body is supported on the free end of the web. The sign body can be raised manually sufficiently for the top opening to be near the light source for illuminating the panels from inside of the body and the body can be held there by tension in the web. The body can be pulled down manually in which case the web unwinds and holds the sign body at a level above the floor of the room so the sign can be accessed for maintenance or exchange of information bearing media.

Abstract: An adapter for facilitating mounting of lighting louvers in "T" rail lighting fixtures is provided. The adapter includes an elongated bar including a first flange extending laterally from an upright web portion and a second flange extending in an opposite direction of the first flange from the web. The bar is formed of a relatively flat, thin sheet metal material that is bent into the configuration such that one portion defines the first flange, another portion defines the upright web, and another portion defines the second flange. The first flange is of sufficient dimension to be received between the lighting fixture frame and the "T" rail. The fixture frame therefore secures the bar in place within the fixture opening. The upright web section includes means for receiving and mounting the lighting louver. The second flange functions to overlap a portion of the lighting louver and act as a light screen between the "T" rail and the peripheral edges of the lighting louver.

Abstract: A lighting system comprising a power jack, a first or second type plug connector and luminaire assembly. The power jack is adapted to receive either a first or second type plug connector. The luminaire assembly includes a lamp socket subassembly, and a globe subassembly. The lamp socket subassembly comprises a lamp socket which is supported by a lamp socket support housing which bears a plurality of lamp socket support projections. The globe subassembly includes a globe, a globe support housing with engaging projections and a globe retaining element. The lamp socket support housing is adapted to be received within a portion of the globe support housing and interconnected by engagement of the lamp socket support projections with the engaging projections. In the engaged configuration, air-flow channels are formed between the housing. Air-flow passages are also formed between the globe and the globe support housing when interconnected by retaining element.

Abstract: A lamp includes a reflective member attached to a bottom of a control box of a ceiling fan. A housing is coupled to the control box by an arm which is bent with an angle so that the housing is located below the control box. A device is provided to support pair of conductors within the housing. A light bulb is electrically coupled between the conductors so that light emitted from the light bulb is reflected by the reflective member in order lighten a room in which the ceiling fan is disposed.

Abstract: A housing for halogen lamps includes an extruded tubular segment with an axial bore, a lamp socket at one end of the bore and at least one pair of opposed longitudinal ventilation slots opening into the bore. The ventilation slots are shielded by an internal baffle which allows air flow across the bore but closes the interior of the housing to view through the slots. A power transformer unit may be included in the bore between the ventilation slots.

Abstract: A low voltage lighting assembly which comprises a lamp holder, a pair of rigid electrically conductive arms, each arm having a lower end that passes through opposingly disposed apertures in the lamp holder in a manner so as to maintain electrical contact with a lamp socket disposed within the lamp holder, while said lamp holder is pivotable about the axis of the lower arms, each arm having an upper end with means to permit independent movement of an arm along one of a pair of spaced apart elongate electrical conductors and to be fixed in place to form electrical contact therewith. The conductors have means to connect to a suitable source of electric current, at a voltage of no more than about 24V. By pivoting the lamp holder about the axis of the lower arm ends, and moving each of the upper arm ends along the conductors, a lamp mounted in the holder may be positioned transversely with respect to the axis lying through the lower ends and longitudinally with respect to the conductors.

Abstract: A reflector for linear light sources and particularly for fluorescent tubes. The reflector has a substantially V-shaped cross-sectional configuration. For use in an array of lamps comprising a plurality of light sources arranged in parallel, a plurality of reflectors of the type disclosed may be assembled to form a reflector arrangement corresponding in size to the array of lamps, with the assembly in its entirety being sawtooth-shaped in cross-section.

Abstract: A light-distributing diffuser for an electrical lighting fixture. The diffuser is rectangular in transverse section and is generally in the shape of an inverted truncated pyramid having an enlarged base and a reduced, outwardly-extending end. The outwardly extending end of the truncated pyramid is surmounted by a vaulted, quadri-faceted cap. The walls of the diffuser are formed with an array of fluted, groove-like channels extending longitudinally along the side and including arrays having channels of lesser and of greater radii of transverse curvature, the arrays being disposed symmetrically with respect to a longitudinally extending center line of each side. The cap is formed on each of four side-connected triangular panels thereof with a pair of laterally-adjacent arrays of fluted channels angled to converge and to intersect along a center line of each panel and along abutting side edges of said panels, to direct illumination diagonally and to achieve an essentially rectangular beam light pattern.

Abstract: The present invention is directed to a lighting fixture thermal insulating system which incorporates the spaceage technology of layered metallized polymer insulation. The present invention utilizes a structure and combination which yields an insulation system of superior performance while being cost competitive and because of reduced space requirement creates greater freedom of design in the manufacture of lighting fixtures. The laminations of metallized polymer and a spacer material may be located above or below the mounting pan or both. For reasons of economy, simple aluminum foil may be used to replace the metallized polymer with only slightly reduced performance.

Abstract: A lamp adapted to be mounted in a hole in a wall has an outer frame fittable in the hole, an inner housing part for securing the frame snugly in the hole bearing inward against the wall, a generally part-cylindrical reflector engageable snugly inside the frame, extending along an axis, and having one end extending axially past the opening and a socket for a bulb at the one end of the reflector. The reflector is of limitedly elastically flexible sheet metal, is of U-section, and at least one of its ends is axially open. A terminal box is provided on the inner housing part and a flexible electric wire extends between the box and the socket, passing out through the open end of the reflector. Both ends of the reflector extend axially past the opening and bear on the outer frame, and the reflector has axially extending edges provided with tabs engaging outwardly into the outer frame.

Abstract: The present invention is directed to a lighting fixture thermal insulating system which incorporates the spaceage technology of layered metallized polymer insulation. The present invention utilizes a structure and combination which yields an insulation system of superior performance while being cost competitive and because of reduced space requirement creates greater freedom of design in the manufacture of lighting fixtures. The laminations of metallized polymer and a spacer material may be located above or below the mounting pan or both.

Abstract: In a rotatable hand actuating element for adjustment drives on automobiles, especially a handwheel assembly for actuation of a sliding roof, consisting of a handwheel (2) and a mounting plate (1) on which the handwheel is rotatably journalled, at least one incandescent lamp (18) is housed in addition to the drive components in the internal space (17) of the handwheel, the light from which lamp passes out through at least one translucent wall surface of the handwheel. As a result the handwheel assembly also becomes the lighting fixture for the automobile interior illumination, with the result that additional lighting fixtures are rendered unnecessary. On the mounting plate, a switch (21) for the incandescent lamp or lamps may be mounted which, starting from a neutral position, can be switched as desired into a switched-on position or possibly a door contact position.

Abstract: A lighting fixture adapted to be mounted between parallel ceiling support grids includes a series of latches at the corners. The latches are retracted responsive to movement of the fixture to a position above the support grids and are released automatically after the fixture is disposed above the grids to define grid engaging supports for the fixture.

Abstract: A combined shade and socket holder for being mounted at the end portion of a tubular member and for use in supporting an electrical socket having an opening through a back wall of the socket and for use in supporting a shade, including, a generally cup-shaped housing formed with a closed end portion, an open end portion and an intermediate connecting central portion, the closed end portion including an outwardly extending tubular portion having an unthreaded interior surface for receiving the end portion of the tubular member and a stop surface within the tubular portion for limiting the extension of the end portion of the tubular member within the tubular portion, the closed end portion additionally including light locking members adjacent the tubular portion for locking the end portion of the tubular member within the tubular portion, the central portion for receiving the electrical socket to have the back wall of the electrical socket positioned adjacent the interior surface of the closed end portion and w

Abstract: A connecting device for securing a vertically suspended lighting fixture to the housing of an electrical junction (wiring) box in such a manner that the lighting fixture can be pivoted to an open position to enable interconnection of the fixture's and junction box's electrical wiring in a safe, facile manner. The device includes a safety means to prevent accidental removal (separation) of the fixture and junction box while in the pivoted, open position. In a preferred embodiment, the invention includes a pair of planar, substantially rectangular plate members. A first of these members is designed for being attached to the junction box and the second for being secured to the lighting fixture. Located on the second plate is a pair of upwardly projecting tab members adapted for being inserted within a corresponding pair of elongated openings located within the first plate member.

Abstract: An indirect light-distributing ceiling structure having a plurality of light reflector members disposed in spaced horizontal relation near a light-reflective ceiling. The light reflector members have a triangular cross-sectional configuration, with alternate reflector members being oriented to provide a horizontal surface facing the ceiling, and with the intervening reflector members being inverted. A source of light is mounted on the horizontal surface of at least one of the alternate reflector members.

Abstract: In an integrated suspension ceiling it is disclosed in which a fluorescent tube type lighting fixture is supported from an directly over a runner forming a part of the grid of the ceiling system. The runner is provided with a central web and oppositely extending flanges extending from the sides of the web. The web is formed with an opening above which the lighting fixture is supported. The lighting fixture includes a ballast frame separately supported on the runner above the opening, a reflector positioned in the opening below the ballast frame supported directly on the runner and a louver mounted within the opening flush with the plane of the ceiling. Each of the frame, reflector and louver are separately supported and removable from the runner for installation and service. Because the lighting fixture is supported directly on the runner and is removably attached thereto, the lighting fixture can be installed after the grid is installed. The fixture does not provide an interruption in the ceiling system.

Abstract: A device for damming insulation around and away from a heat producing object such as a recessed light fixture is disclosed in its preferred form according to the teachings of the present invention. Specifically, the insulation damming device is formed by the interconnection of one or more insulation damming members to form an enclosure of a size and shape arranged to fit around the heat producing object. The damming members are generally planar and are formed in the preferred embodiment of sheet metal. Top, middle, and bottom extension members extend from the first end edge of the damming member and positively interconnect with top, middle, and bottom series of slots extending along the length of the damming member from the second end edge of the damming member. To increase stability and position retention, apertures are formed in the damming member adjacent the bottom edge for receiving a wire for attachment to a support member.

Abstract: A retainer for supporting a lamp socket to a housing which includes a base having an opening to permit the passage of light from the lamp. Also included is a bracket having an opening for circumscribing a leg protruding from the base. A fastener holds the leg protruding from the base within the opening in the bracket. A support holds the leg and fastened bracket to the housing.

Abstract: The present invention is directed to a universal ceiling lighting fixture and more particularly is directed to a lighting fixture adapted to be mounted above a ceiling made of gypsum board, acoustical tile or the like, the fixture being characterized by its ability to support reflectors of a variety of diameters. More particularly, the fixture includes novel mounting means which extend over the reflector receiving aperture, the mounting means being adjustable in accordance with the diameter of the reflector intended to be used with the fixture.

Abstract: A lighting panel trim element for attachment to the outer marginal edges of a lighting panel is disclosed as having a throat section for receiving the top, side and bottom marginal edges of the lighting panel, a horizontal wall section for mounting the lighting panel relative to a lighting fixture, and means for positively securing the lighting panel within the throat section of the lighting panel trim element.

Abstract: A socket apparatus for light tubes which normally extend downwardly a substantial distance from a fixture and in which the socket apparatus is swingably mounted relative to the fixture so that the light tubes may be plumb regardless of the attitude of the fixture.

Abstract: A lighting fixture adapted to be mounted on a ceiling by attachment to an outlet box in the ceiling. The fixture comprises a pan having an upwardly extending rim and a crossbar attached to the bottom of the outlet box in a position extending horizontally across the bottom of the box. The rim of the pan is adapted to be attached to at least one end of the crossbar for mounting the pan adjacent the ceiling.

Abstract: Indoor lighting fixture providing semi-indirect symmetrical light distribution. The fixture, which is adapted to be positioned adjacent the ceiling of the room comprises a high intensity gaseous discharge lamp mounted at its base on the ceiling and extending downwardly into a box-shaped reflector open at its top with reflective sides and a diffuser panel at its bottom. Positioned in the reflector and surrounding the lower portion of the lamp is a dish-shaped semi-transparent reflector which reflects a portion of the incident light toward the ceiling and transmits a portion of the light to the area below the fixture. The arrangement is such that direct and indirect light is distributed by the fixture while shielding the light source from direct view of the room occupants to avoid glare.

Abstract: A decorative drop ceiling including a panel having a plurality of openings therein disposed between a source of light and an area to be illuminated. A light transmissive lens is disposed in each of the openings. Each lens has a predetermined thickness dimension, which is not dictated by the thickness of the panel. The lower face of each lens is co-planar with the lower surface of the panel. The periphery of the lens is recessed, and fasteners, disposed in the recess, fix the lens in the opening.

Abstract: A lighting fixture arrangement including a lighting fixture suspended from a supporting structure at a first height, and a hanger arrangement located remotely from the lighting fixture and attached to a supporting structure at a second, lower height. The lighting fixture includes a power supply assembly and an optical assembly suspended from the power supply assembly and adapted to receive operating voltages over a cable for operating the optical assembly to illuminate a first area or region beneath the fixture. In accordance with the invention the optical assembly is capable of being removed, or separated, from the rest of the fixture and carried together with its associated cable to the remote hanger arrangement and suspended from the hanger arrangement to illuminate a second area or region beneath the hanger arrangement. The hanger arrangement does not have, and does not require, a power supply assembly of its own, thereby reducing the required mounting space in the vertical dimension.