Abstract: A lighting fixture component is in spaced relationship with a decorative material so as to leave the front and back side of the decorative material unobstructed. The decorative material is fixedly attached to, and enclosed by, the frame with a plurality of fasteners for attaching the decorative material to the frame by one edge wherein the edge is of sufficient thickness and hardness to support the decorative material.

Abstract: An improved two-level suspended lamp frame including a mount fastened onto a ceiling, a junction box extending below the mount, and a pendant fixture inserted at the sides of the mount and the junction box. The mount has insertion holes in which a coupling spring having two inward closured retentive ends is disposed at the interior face of each insertion hole. The junction box has openings formed in its circumference for the fitting of mounting blocks and retaining elements are installed at the two sides of each mounting block. Each pair of retaining elements has secured to their hook nibs an elastic component which, under normal conditions, pulls the inward protruding ends towards the inside of sleeved holes. As such, the rectangular insertion pegs of the pendant fixture are aligned with and slipped into the insertion holes of the junction box and tightly anchored without requiring additional fastening screws and tools to thereby effectively facilitate ease of assembly and installation.

Abstract: A lamp rack and lamp holder quick-release connecting structure includes a first connector fastened to a lamp rack by a lock nut, and a second connector fixedly provided at one end of a lamp holder for connecting the lamp holder to the first connector and for enabling electric wires to be extended from the lamp holder to the inside of the lamp rack, the first connector having a tubular mounting member with an outside annular groove, the second connector having a C-shaped retainer ring mounted in an inside annular groove thereof for engaging the outside annular groove of the mounting member to secure the second connector to the first connector.

Abstract: Disclosed is a projection display apparatus in which the optical axis of a lamp and that of an optical unit can be easily made coincide with each other irrespective of dimensional variations of component parts. A lamp holder (32) is movably attached to a ride side plate (37) of a lamp case by extension springs (63). The center of a lamp (1) is positioned on the optical axis (20x) of an optical unit (20) by a circular arc wall face (32f) of the lamp holder (32) and a V-shaped member (45) fixed to the optical unit (20). The optical axis (1x) of the lamp (1) and the optical axis (20x) of the optical unit (20) are set to be parallel to each other by a slide reference face (20a) of the optical unit (20) and three projections of the lamp holder (32). Since the lamp holder (32) is not fixed to a lamp house, an influence of accumulation of dimensional variations of components such as the lamp house exerted on the adjustment of the optical axes of the lamp (1) and the optical unit (20) can be minimized.

Abstract: A lamp rack and lamp holder quick-release connecting structure includes a first connector fastened to a lamp rack by a lock nut, and a second connector fixedly provided at one end of a lamp holder for connecting the lamp holder to the first connector and for enabling electric wires to be extended from the lamp holder to the inside of the lamp rack, the first connector having a tubular mounting member with an outside annular groove, the second connector having a C-shaped retainer ring mounted in an inside annular groove thereof for engaging the outside annular groove of the mounting member to secure the second connector to the first connector.

Abstract: Disclosed herein is a modular cluster lighting fixture having a plurality of lamp supports for mounting lamps connected to each other by a plurality spacers. The lighting fixture can be suspended by a plurality of tubular hangers connected to the lamp supports and in which pairs of electrical conductors are disposed for supplying energy to the lamps. Preferably, each lamp support includes a two-piece clamp body and two tubular support arms. The clamp bodies mount the support arms at one or more sides and are clamped around ends of the spacers. The clamp bodies have an opening at a top side for receiving an end of a hanger, preferably at a pivotal connection.

Abstract: A suspending and assembling structure for ceiling lamp, including a connecting having an upward extending tube. An inner wall of the tube is formed with two radially opposite slide channels and two radially opposite engaging notches. The lamp seat of the ceiling lamp has an upward extending hollow post. A pin member is radially passed through the post near the top end thereof. Two ends of the pin member protrude out of the post. The post is upward fitted into the tube and rotated to aim the pin member at the engaging notches and engage and locate the pin member in the engaging notches.

Abstract: Disclosed herein is a modular cluster lighting fixture having a plurality of lamp supports for mounting lamps connected to each other by a plurality spacers. The lighting fixture can be suspended by a plurality of tubular hangers connected to the lamp supports and in which pairs of electrical conductors are disposed for supplying energy to the lamps. Preferably, each lamp support includes a two-piece clamp body and two tubular support arms. The clamp bodies mount the support arms at one or more sides and are clamped around ends of the spacers. The clamp bodies have an opening at a top side for receiving an end of a hanger, preferably at a pivotal connection.

Abstract: A lighting system comprising a reflector and an arc lamp designed for illuminating a wide area with an even light distribution. The reflector has a cap that is generally parabolic in shape except perhaps at its top where it supports an arc lamp. The arc lamp is preferably a high intensity sodium or mercury vapor lamp with a vertical arc tube mounted so that the lowermost part of the arc tube is positioned to be even with the lowermost edge of the cap. The glass bulb housing the arc tube may extend below the lowermost edge. In an alternative embodiment, the lowermost edge of the cap has an extended portion and a short portion. In this embodiment, the lowermost part of the arc tube is even with the short portion.

Abstract: A lighting fixture with arms, comprising at least a central body, a plurality of protruding radial arms and clutching means for fastening said arms to the central body and for the electric connection of the bulb-carrying arms, comprising a fixed element (1) connected to said central body and a movable element (3,3′) connected to the end portion of each arm and introduced into the fixed element (1). The movable element (3′), connected to the end of an arm (4) carrying no bulb, is provided at the end portion with a blind tube (25) and the movable element (3), connected to the end of an arm (5) carrying a bulb (6), is provided with two electrical wins (41) connecting a bulb-holder for the bulb (6) to an electric contact means (15,17) that protrudes from the movable element (3) facing the fixed element(1).

Abstract: A ballast housing has a bottom wall, a sidewall extending in a first direction from the bottom wall, and a first compartment that is defined between the bottom wall and the sidewall, with a first access opening remote from the bottom wall. The housing further includes an interior wall extending from its bottom wall in the first direction and is located completely within the first compartment, and a second compartment that is defined by the interior wall and is isolated from the first compartment by the interior wall. The second compartment includes a second access opening adjacent the bottom wall. A first component can be disposed in the first compartment and a second component can be disposed in the second compartment with the second compartment isolating the second component from the first component in the first compartment.

Abstract: An overhead light fixture including a housing with a top wall, power-related components, a lamp-mounting socket, and usually a reflector. The top wall defines a pair of side-by-side hanger-member apertures, and a hanger member extends through a chosen aperture in a chosen orientation, thus providing multiple positions for the hanger vis-a-vis the housing to accommodate different centers of gravity as determined by the particular choice and positioning of power-related and other components within and on the housing. Preferably, the apertures are slots and the hanger member is a flat plate with right-angle bends. A junction box with another pair of hanger-member apertures gives more mounting options, as does differing hangers. The invention also includes a top wall with a hanger-member aperture between a pair of securing devices, such as a fastener apertures, allowing attachment of the hanger member to the housing in a selected one of two orientations.

Abstract: A detachable pendent lamp for easy packing assembly includes a die cast pan having a base bulb casing mounted thereunder, a plurality of light chandeliers detachably and outwardly extended from the pan wherein each light chandelier has a bulb connector mounted on an outer end thereof, a lamp shade detachably attached to the bulb connector, a hanging means for hanging the pendant lamp from a ceiling base to the pan, and a plurality of connecting wires integrally connected to the light bulbs, whereby the pendent lamp is packed in a packing container having a pan cavity provided at a center thereof for receiving the pan therein. The detached light chandeliers and the hanging means are placed inside the pan, and a plurality of shade chambers encirclingly mounted around the pan cavity for disposing the lamp shades therein, so that the container has a height slightly larger than a height of the pan for saving the packing space.

Abstract: A light fixture assembly having at least one arm that can be preassembled wherein the arm can be adjustably positioned to minimize packaging volume, and during installation, the arm can be adjustably positioned to lockingly engage a predetermined alignment position as specified by the manufacturer without any loss of structural integrity. The light fixture assembly includes a first plate having a central aperture and at least one peripheral opening, and a second plate removed from and fixedly positioned relative to the first plate. At least one arm is secured to the first plate wherein one end of the arm extends through the at least one peripheral opening. The second plate includes a central aperture and at least one independently flexible portion in contact with the arm end. A support rod extends through the central apertures of the first and second plates. The support rod is secured to the first plate.

Abstract: A lighting fixture such as a chandelier formed of a supporting frame member defining a shape of the fixture and a plurality of solid listels or baguettes attached to opposing sides of frame member sections so as to surround and obscure significantly the underlying frame member from view. One or more fasteners may be used to secure the listels to the sections of the frame members. The listels may be produced using commonly available mass production or automated manufacturing techniques. A chandelier having a frame member interposed between glass listels is commonly referred to as a Maria Theresa style chandelier. Alignment features are preferably included on either or both the listels and the frame member to assist in the placement and arrangement of the listels on the frame member for subsequent attachment. Such alignment features may include one or more bosses integral with the section that align with corresponding alignment bores formed in the frame member.

Abstract: A ceiling fan includes a motor having a center shaft. A control box is secured to said lower end of said shaft. An upper shell is secured to the control box for receiving the control box and the motor. A lower shell and a frame are secured to the control box. The frame has a cross shape having a number of ends for supporting a number of light tubes. The light tubes are engaged around said upper shell. A lamp shell includes a multi-circle step having two circular surfaces for supporting two circular light tubes.

Abstract: An operating room light with ceiling suspension is provided with a shaft protruding from the ceiling and containing internal electrical conductors, the shaft being enveloped in its end region by a support body provided on its outer circumference with slip rings for establishing electrical connections between the shaft and the conductors contained in a swivel arm; the swivel arm is provided with a swivel arm head as part of a rotary joint, which envelops the support body and which contains on its barrel-shaped inside slip ring pickups for making contact with the slip rings of the support body; viewed in axial direction, the support body is provided at both of its ends with bearing bushes functioning as sliding bearings, the upper bearing bush supporting an axial bearing ring that bears thereon to hold the swivel arm head; the support body together with the bearing bushes is secured against radial and axial shifting by means of threaded pins passed through openings in the pivot as well as by a locking ring held

Abstract: The invention provides lighting fixtures, components for lighting fixtures and methods of assembling lighting fixtures. The invention involves the assembly of ornaments onto chandelier frame members without the use of hooks. The lighting fixture is sculpted by attaching ornaments to the frame in a fixed geometric pattern utilizing seating posts and retaining stops on the frame member. The frame member has an aligned position in which the retaining stops hold the crystals in place on the seating posts and a non-aligned position in which the retaining stops are moved whereby the ornaments can be placed on or off the seating posts without obstruction by the retaining stops. Preferably the chandelier is flexibly and elastically biasable into and out of the aligned and non-aligned position.

Abstract: A lighting fixture for sealed emvironments including cleanroom and containment environments. There is described a recessed, ceiling-mounted fixture which has a one-piece, seam-welded housing, and which carries swing out mounts. The fixture is further characterized by an improved system by which its lens assembly, which employs a specially-shaped lens frame and a uniquely-contoured, one-piece gasket, is doubly sealed, firmly and evenly. against the fixture housing and the ceiling in which the fixture is mounted. A unique and functionally significant feature of the fixture is the provision of a support fulcrum bracket which is positioned radially inwardly of the fixture securment screws. The support fulcrum bracket functions, in conjunction with a cooperating screw fastener, to reverse the fulcrum point of fixture constructions of this type, thereby drawing the lens frame and gasket system in consistent and reliable contact with the ceiling structure.

Abstract: A preformed or preassembled bowl/plate assembly, including a bowl, a plate secured with respect to the bowl and defining with the bowl a chamber, the plate having a number of openings, each configured to receive a chandelier arm in a predetermined array. The chamber houses a plurality of wires with one pair of wires extending through each of the openings in the plate from the chamber. A plate/arm arrangement is provided to permit attachment of chandelier arms to the plate while only having access to the upwardly-facing surface of the plate. The chandelier arms may be both structurally attached to the chandelier framework and electrically attached to the central wiring of the chandelier after preassembly of the bowl/plate arrangement. The chandelier arms are preferably formed in an arcuate shape with a light socket attached to a first end and a sleeve attached to a second end and a pair of wires electrically attached to the light socket.

Abstract: A recessed lamp fixture having a minimal plaster frame and a lamp housing. The plaster frame comprising a mounting bracket is adapted to receive a variety of differently sized and shaped lamp housings. The housing comprises an integrated lamp and trim assembly that is retained within the housing by a biased retaining spring. The housing is designed with minimal openings for reduced heat loss and air flow. The frame further comprises an integrated junction box and hanger bar system adapted to mount the fixture behind a panel. The junction box and the lamp housing also comprise an electrical power line retaining means to securely fasten the line to the box and housing. The hanger bar is slideably attached to the frame with ends that are designed to engage ceiling and wall supporting structures without the need for additional fasteners.

Abstract: A lamp housing includes a board having a number of notches formed in the peripheral portion. The notches each includes a narrower opening portion. A number of attachment members each include a neck portion for engaging with the opening portions of the notches. Each attachment member includes an enlarged portion for engaging with the board so as to secure the attachment members to the board. The neck portions may include a cavity or a projection for engaging with the key or the recess of the board so as to prevent the attachment members from rotating relative to the board.

Abstract: A method for assisting installation of an electrical fixture to a mounted electrical junction box. The electrical fixture carries an electrical device having electrical wires to be coupled to electrical lead wires extending from the junction box. The junction box has tabs carrying threaded attachment holes. The fixture has openings alignable with the attachment holes.

Abstract: A ceiling-mountable light fixture adaptable for stand-alone use or use in connection with a ceiling fan is described. The fixture is mountable directly to a ceiling-mounted electrical junction box. The fixture is adapted to receive a suspension member, whereby a conventional ceiling fan may be suspended below the fixture, such that the fixture is positioned between the fan blades and the ceiling. The fixture is preferably pan-shaped, with a relatively flat base and an octagonal wall depending from the base. A distal portion of the wall is turned outwardly to define a flange which is positioned in facing contact with the ceiling when the fixture is mounted thereon. The fixture includes a central boss, which is elevated with respect to the base on a top side of the fixture, to define a recess on a bottom side thereof. The boss has a circular opening extending therethrough and an annular surface surrounding the opening.

Abstract: A flexible cantilevered lighting baffle includes a first flexible member including a top edge from which is removably suspended a second flexible member and light baffle elements mounted thereon. The first member may be attached by conventional fasteners to a ceiling structure with a top edge exposed to receive connectors on the second member. Connectors in the form of inverted "U" shaped tabs on the second member are releasably received over the top edge of the first member. Light baffle elements are mounted cantilever style to the second member, as is a light seal. The baffle elements are cantilevered on one side of the second member. The light seal is provided on the opposite side to compress against the first member and prevent escape of light between the first and second members when mounted together.

Abstract: Novel chandelier frameworks are provided. The chandelier frameworks include arms and plates, as well as rings and disks mechanically and disengagingly securing the parts of the framework to one another. The plates and arms may include interlocking slots and projections held together by locking disks.

Abstract: A device for suspending hangings on ornamental structures, especially lighting fittings, the hanging comprising an eye (2) into which a hook (4) formed on a rod (3) can be hooked and on which a bush (5) is longitudinally slidable. The bush is provided with two mutually opposite slots (6) for being placed onto the eye (2). The hook on the supporting rod is formed by a downwardly inclined straight recess (4). The eye engages this hook with a straight and level inner edge such that it does not twist relative to the rod.

Abstract: A system for fixedly securing an illumination instrument to a ceiling of a building structure, comprises a flexible suspender adapted to be connected to an under surface of a slab of the building structure and extending generally vertically therefrom, a suspender grasping assembly for releasably grasping the flexible suspender to move therealong in a vertical direction and to be held at any desired height, and engaging member frictionally engaging with an outer periphery of the suspender grasping assembly to hold an illumination instrument support member at a temporal set position.

Abstract: An adjustable and removable chandelier chain cover formed from a portion of flexible fabric material encircling the chandelier chain having first and second engagement edges so that engaging edges so that the engaging edges when pressed together form a connectable and flexible joint for the cover around the chandelier chain. The fastening means may be strips of fabric, some carrying a plurality of hook elements and others carrying a plurality of cooperating loop elements. The length of the cover may be adjusted by gathering the cover if its length exceeds the length of the chain to accommodate and adjust to the length of the shorter chain length and extending the cover to a less gathered or ungathered condition when the chain length is longer.

Abstract: A light fixture collapsible for shipping has rotatable and axially-displaceable arms that are resiliently urged toward a central body such that when the arms are re-aligned with the body upon unpacking the fixture, the resilient means urges a positioning pin to lock the arm in place. The fixture has a hollow body with a peripheral wall against which a plurality of arms are to extend radially outward. A post on one of the arm and the body extends into the other of the arm and the body, making the arms rotatable about their axes. A positioning pin on the arm and a hole in the body, or vice versa, engage when the arm is in alignment. A helical spring urges the arm toward the body.

Abstract: A hanging lamp can be folded in a compact size so as to ease packaging and shipment. The hanging lamp includes a foldable lampshade and a switch housing having a plurality of bendable lamp tube attached thereto. A plurality of ribs of the lampshade extend downwardly and outwardly from a top centerpiece forming a dome-shaped frame structure. Each rib includes an upper rib segment and a lower rib segment connected with each other by a pivot pin. A spring is disposed around the pivot pin and biases the lower rib segment away from the upper rib segment in a transverse direction so as to ease folding up the lower rib segment against the upper rib segment. The bendable lamp tube can also be bent inwardly so that the hanging lamp occupies little space in shipment.

Abstract: A height adjustable light fixture support includes a first U-shaped bracket with a crosspiece and first and second depending legs. The U-shaped bracket will be secured in a ceiling box. A slidable, height adjustable second U-shaped bracket supports a light and includes separated first and second plates, each of which is shaped to define a respective sliding channel in which one of the legs of the first bracket is slidably receivable. The plates are connected by a second crosspiece. Spring loaded members supported by each plate each include a spherical head which penetrates into the sliding channel of its plate to frictionally engage the respective leg of the first bracket in the channel. Temporary release of these members enables the height of the light fixture to be easily adjusted by moving the second bracket.

Abstract: A fixture including thermal sensing means is disclosed which fixture is especially adapted to be mounted in existing ceiling construction. The fixture includes a shroud having a cut-away portion enabling the fixture to be inserted in angularly oriented position relative to the ceiling and thereafter tilted into mounted position in the ceiling. The fixture includes spring clips insertable after the shroud is mounted into clamping engagement with the upper surface of the ceiling to securely connect the shroud to the ceiling.

Abstract: A lightweight and inexpensive boom supported light fixture is provided comprising a swivel connected to a support surface and being pivotally connected to one end portion of a boom assembly, and an illuminating device adjustably movable along the length of the boom assembly to provide illumination at selected areas. A holding mechanism at the remote end portion of the boom assembly selectively and positively holds the boom assembly at the desired location, and a control line downwardly disposed from the boom assembly permits the user to easily and conveniently position the assembly to provide illumination at a desired location.

Abstract: A support for a ceiling fan or other fixture has a pair of slidably interconnected, pointed lances adapted to be driven into engagement with spaced structural members. A tool-strikable striking element is adapted to be coupled to each lance at a selected location along the length thereof. The support is adapted to be installed through a small hole in a preexisting ceiling or wall.

Abstract: A plaster frame for mounting a lighting fixture in recessed fashion in a ceiling comprises a main body portion including a rectangular, planar member defining an aperture therein, the aperture being similarly dimensioned to the ceiling aperture in which the lighting fixture is to be mounted. Hanger bar brackets are integrally formed with the planar member at breakaway junctions along opposite, first sides of the planar member. The hanger bar brackets are adapted to receive hanger bars for mounting the plaster frame between spaced joists supporting the ceiling. Each hanger bar bracket is removable from the planar member by bending at the breakaway junctions. The hanger bar brackets are reattachable to the planar member along opposite, second sides thereof by means of bendable, spaced tabs formed on the brackets receivable in similarly spaced apertures defined in the planar member.

Abstract: A lighting fixture combined with a suspended ceiling in which ceiling panels are supported from channels and one or more fluorescent tubes are provided in a box or boxes supported by the channels and a lens or lenses are, arranged below the box and of the same shape as the ceiling panels so as to blend in with adjacent ceiling panels.

Abstract: The present invention relates to a lighting fixture adapted to be mounted directly to the ceiling of a room or the like. A characterizing feature of the invention lies in the provision of a frame structure adapted to seat against the upper surface of the ceiling, the frame structure including means in the nature of clips which are shiftable radially into complementary guideways formed in the frame, the clips in the course of such outward radial movement including tangs which embed themselves in the ceiling structure proper to securely mount the fixture at a desired position in the ceiling.

Abstract: The invention pertains to a lampholder and switch module which may be readily installed in a lamp fixture, and is particularly suitable for automotive and recreational vehicle use. A housing includes a lamp socket having electrical contacts located therein, and a switch slidably mounted upon the housing employs cam structure for translating a contact between lamp base engaging and disengaging positions to selectively complete and break the circuit to the lamp. The module is characterized by its economics of fabrication, assembly, and installation.

Abstract: Disclosed is a mercury floodlight fixture assembly and method adapted for being mounted on a conventional outlet box as an improved replacement for an incandescent-type floodlight assembly. A novel bracket and hook member are used to support the relatively heavy ballast housing during installation after which the hook member is removed and the bracket member is utilized to support the housing.

Abstract: An asymmetrically mounted recessed lighting fixture which includes an integral appearance frame about the bottom edge thereof which underlies and conceals the ceiling support framework from view. The lighting fixture includes an undercut or recessed portion in one sidewall which permits mounting of the luminaire on the ceiling support framework without removal of the appearance frame which underlies and conceals the ceiling support framework.

Abstract: A lighting fixture is removably supported within a coffer of a modular suspended ceiling structure by two arms which are retractably mounted at each end of the fixture for movement between extended positions in which they are supported on the top surface of the surrounding ceiling structure and retracted positions to permit vertical lowering or upward insertion of the fixture into the ceiling.