Abstract: A protective grill for use of the working light, wherein at least one end of an aligning rod is installed with a U-shaped hook portion, and the free end of such U-shaped hook portion is located on the front side; thus the present invention, with the design of the U-shaped hook portion, enables manufacturers to produce protective grills without considering the degree of precision, also the protective grills of the present invention can be installed easily and hard to be loosened from the working lights the protective grills attach to.

Abstract: A light socket cover system that is used by persons decorating with lights, including strings of lights, that provides an electrically nonconductive cover for providing a moisture tight covering for one or more empty light sockets and/or one or more light sockets with light bulbs installed therein. The light socket cover system includes a two-part sealable housing and in some options a socket filling structure to prevent access into the socket by fingers, water and the like.

Abstract: A fluorescent lighting system having a low-cost nonconductive plastic housing and a plurality of fluorescent lighting tubes carried in sockets in the housing and a square-wave alternating current source connected to drive the fluorescent lighting tubes.

Abstract: A work lamp comprises a protective sleeve, a cap, and a lamp device received in the protective sleeve including two sockets and an auxiliary shell member all supported by a plurality of elastic members, thereby ensuring the work lamp to be non-fragile while operating.

Abstract: A compact fluorescent lamp ballast housing compatible with double-ended socket assemblies including sockets at the ends of an elongated holder such as the ones used for quartz halogen and metal halide lamp fixtures. The housing supports multiple circular compact fluorescent lamps. The sockets are connected to opposite connector assemblies in the housing. Inside the housing an electronic ballast assembly is selectively turned on and off by a receiver assembly that is remotely actuated by a compatible transmitter assembly. The bottom of the housing includes a channel that substantially conforms to the elongated holder for the sockets to provide clearance for the holder and better mechanical engagement.

Abstract: A lighting apparatus includes a first portion and a second portion which form an enclosure for a light source. The first portion extends from a first end to a second end, where the first end has a collar adapted to couple with an electrical socket with a snap fit connection. The electrical socket receives a light source therein. The second end of the first portion is hingedly coupled with the second portion, thereby allowing removal of the light source.

Abstract: The present invention comprises a mounting bracket that may be permanently mounted to a vehicle, such as by riveting. The mounting bracket includes at least one deflectable tab that is deflected away from a main plane of the bracket when the lamp assembly is pressed against it. The lamp assembly includes an extending surface which interacts with the mounting bracket tab in order to deflect the tab. Subsequent rotation of the lamp assembly in a clockwise direction causes the lamp extending surface to move under the mounting bracket, allowing the deflected tab to return to its quiescent position Any attempt to remove the lamp assembly from the mounting bracket by turning the lamp assembly in a counter-clockwise direction is prevented by interaction between the lamp extending surface and the now non-deflected mounting bracket tab. Theft of the lamp assembly is thereby prevented.

Abstract: A light support and clothes hanger device for combining a light with a clothes hanger bar. The light support and clothes hanger device includes an elongate housing having a top wall and end walls for securely mounting to a ceiling in a building structure; and also includes a light-emitting member securely and removably mounted in the housing; and further includes a plurality of hanger support mounting members securely fastened to the top wall of the elongate housing; and also includes a hanger support member securely mounted to the hanger support mounting members and to the end walls of the elongate housing; and further includes an on/off switch mounted to the elongate housing for energizing the light-emitting member, at least one ballast connected to the on/off switch, and a power cord connected to the on/off switch.

Abstract: The present invention proposes a modified lamp series. The lamp series is a power cable with a plurality of bulb sets installed thereon. Each bulb set comprises a bulb seat, a fixing outer lid, and a bearing soft core. An accommodation groove is disposed in the bulb seal. An outer thread is formed on the upper periphery of the bulb seat. An inner thread is formed in the fixing outer lid. A retaining ring is installed on the top of the fixing outer lid. A bulb base of the light bulb penetrates an opening at the center of the retaining ring. The inner thread of the fixing outer lid can be matched exactly with the outer thread of the bulb seat such that the fixing outer lid can be screwed firmly on the bulb seat. The bearing soft core can be lapped exactly in the accommodation groove. Two opposite holes are disposed at proper positions of the bottom of the bearing soft core. The bulb base of the light bulb penetrates the opening of the fixing outer lib and is placed in the bearing soft core.

Abstract: Apparatus and method for heating at a distance by light radiance includes a support and narrow-beam lamps mounted on the support in a matrix of lines and columns. Each of the lamps produce a luminous beam having a central axis of projection. The lamps in each column can be oriented to make their central axes converge to a first focal area. The lamps in each line can be oriented to make their central axes converge to a second focal area.

Abstract: A lighting device has a light holder positionable on a mounting support, the light holder also having an outer light holder edge. The light holder includes a centrally located light holder top that projects from the mounting support for fastening a light source. A light protector is detachably fastened on the light holder. The light protector covers the light source and any holder regions projecting from the mounting support in such a way that essentially only the light protector is visible. The light protector has a protector collar, which encircles the outer holder edge and limits a protector opening that is pointed toward the inside space defined by the light protector.

Abstract: A lamp with improved safety features, to avoid fire and burn hazards, includes an electrical circuit having a thermostat connected in series with the bulb of the lamp. The thermostat is mounted in close proximity to the lamp's bulb and, upon the ambient air temperature in the vicinity of the thermostat reaching a predetermined temperature, the thermostat effectively opens the electrical circuit, shutting the lamp off. Once power is turned off for a period of time, the thermostat resets and the lamp may be operated again. A protective guard is positioned over at least a portion of the bulb of the lamp to prevent accidental burning. Alternatively, the electrical circuit further includes a detector for sensing an object being placed within the lamp shade and generating a signal in response thereto. The detector is electrically connected to a switching device which terminates power to the lamp in response to the detector signal.

Abstract: An arc lamp lightsource module comprises a removable lamp unit including an arc lamp attached to two radial electrode heatsinks that are in turn disposed in an insulating sleeve housing. A chassis has a catch and a clip to lock down the removable lamp unit. An igniter is included to power the arc lamp. A single fan and an air plenum are disposed in the chassis and provide for a cooling airflow that is split between the igniter and the two radial electrode heatsinks. A pair of machine screws provide electrical contact to each of the two radial electrode heatsinks and that have crowned heads for a smooth contact surface. A printed circuit board (PCB) has springboard cutouts and electrical pads providing for a spring-pressure electrical contact between the igniter and the arc lamp through the pair of machine screws.

Abstract: An illuminated power outlet assembly for a motor vehicle having an insulator and an illumination device. The illumination device includes a light emitting diode and a resistor electrically coupled in series. The illumination device is positioned within a power outlet, specifically between the casing and the insulator, such that when the illumination device illuminates, the light passes through the insulator to light the power outlet.

Abstract: A lamp head incorporated with an anti-combustion arrangement, which includes an upwardly directed pan, a reflecting disc disposed internally of the pan, and a holding means for electrically receiving a halogen light source. A shielding lens is mounted on the planar lip for closely covering the halogen light source, wherein a high temperature burning zone is formed above the concave reflecting surface and around the halogen light source. The anti-combustion arrangement includes a protective shelter and a supporting means. The protective shelter, which can be made of transparent glass having a plurality of ventilation holes or a wire frame, has a size adapted to entirely cover the halogen light source. The supporting means is adapted for supporting the protective shelter at a predetermined height right above the halogen light source to cover the high temperature burning zone and to define an air ventilation clearance between the protective shelter and the halogen light source.

Abstract: An improved mounting arrangement is provided for supporting a tubular lamp, particularly such as a lamp used in fluid treatment processes, within a protective jacket such as a transparent sleeve of quartz glass or the like. The protective jacket is mounted by a compression nut to a threaded socket adapted for slide-fit reception of the lamp through the socket and into the protective jacket. The lamp comprises an elongated tubular glass lamp body having distal and proximal ends thereof supported by distal and proximal end caps each including spacers for centering the lamp body in spaced relation to the protective jacket. The proximal end cap comprises a lamp base with conductive terminal pins for connection to an electrical power source, and further includes outwardly projecting lock tabs for engagement, preferably with a quarter-turn rotation, with the compression nut to releasibly lock the lamp in position.

Abstract: A vehicle lamp having a discharge bulb which prevents radiation of electromagnetic waves toward the forward positions of the lamp. Radiation into the other directions is prevented by shielding members disposed around the lamp. A shade disposed in front of a discharge bulb attached to a reflector is made of metal and a stem of the shade is secured to the reflector in a state where the stem is electrically connected to a socket fixture. The shade is placed at ground potential through the fixture. Thus, the front portion of the discharge bulb is shielded and prevents radiation of the electromagnetic waves to positions in front of the lamp.

Abstract: An armored housing has resiliently supported therein the combined weight of a reflector structure, a lamp in the reflector structure and an electrical component, such as a ballast, mounted on the reflector structure. The reflector structure preferably comprises an extruded aluminum reflector support and a sheet metal reflector.

Abstract: The present invention improves upon existing trouble lights by providing a multi-purpose trouble light having a handle upon which are positioned two electrical receptacles suitable for engagement with standard electrical plugs of the type having two flat male blades and a cylindrical male pin positioned in a standard triangular configuration. The electrical plugs are inserted into the receptacles in the handle inverted with respect to each other. A first and second female terminals and a ground terminal are positioned within the trouble light. The first and second female terminals, each having two channels, are positioned within the handle so that each male blade of the two electrical plugs is received within one of the channels. The third terminal provides a ground connection for the cylindrical male pins of the electrical plugs. This efficient and compact terminal configuration enables two electrical receptacles to be provided in a compact and conveniently-sized handle.

Abstract: A protective lens shield (12) with a torsion adjustment system (3) and simple one-bolt mounting bracket clamp (1) for use with outdoor lighting fixtures. The protective lens shield is constructed of dual layers and thicknesses of polycarbonate sheets (12) which have ballistic containment properties. The bracket clamp (1), clamp bolt assembly (2), adjustment carriage bolt (3), threaded adjustment housing (4), and arm-shield adjustment arm (5) are constructed of steel with a galvanized coating for a corrosion resistant longer life. The hook-and-cable assembly (FIG. 2) is comprised of a hook (8), cable (9), and a cable assembly bolt (10) which is stainless steel corrosion resistant materials. The torsion flex system is enhanced by the adjustable torsion carriage bolt (3). This adjustment allows for a flex in the polycarbonate sheets allowing it to absorb the energy from objects attempting to penetrate the shield (12).

Abstract: A lamp head incorporated with an anti-combustion arrangement, which includes an upwardly directed pan and a reflector member disposed internally of the pan. The reflector member has a planar lip for supporting a reflecting disc and a holding means for electrically receiving a halogen light source. The reflecting disc has an inner concave reflecting surface positioned below the halogen light source. A shielding lens is mounted on the planar lip for closely covering the halogen light source, wherein a high temperature burning zone is formed above the concave reflecting surface and around the halogen light source. The anti-combustion arrangement includes a transparent protective shelter and a supporting means.

Abstract: A lamp shade includes a shade body having a circular mounting hole, a mounting socket fastened to the circular mounting hole by a lock ring to hold a halogen lamp, and a heat insulation shield fastened to the mounting socket and covered around the halogen lamp, wherein: the mounting socket comprises an annular head stopped outside the shade body, a socket body longitudinally extended from the annular head and inserted into the circular mounting hole, two symmetrical mounting notches on the annular head for mounting the halogen lamp, an outer thread around the socket body, a first screw hole on the annular head into which a tightening up screw is threaded to hold down the halogen lamp, and a second screw hole on the socket body into which a tie screw is threaded to hold the heat insulation shield in place; the lock ring has an inner thread threaded onto the outer thread on the socket body of the mounting socket; the heat insulation shield is sleeved onto the socket body of the mounting socket, having a screw h

Abstract: Protective guard assemblies for light fixtures are designed especially for use in industrial environments, such as underground mining operations. Each assembly includes a reinforced cap and a base to which the light fixture is secured. The cap is installed over the fixture and secured to opposing sides of the base by hinges formed of mating sleeves. The base includes a cable support flange at one end. The support flange has two semi-circular notches on which the electrical cables are cradled to protect them from being damaged by outside impact. The cap includes a rear end plate with mating inverted semi-circular notches. With the cap installed on the base, the mating notches in the cap and base form circular apertures that firmly engage the two cables. The cap also includes a C-shaped hood extending from the rear end plate and over the cables and support flange to provide additional protection from outside impact.

Abstract: A water-tight Christmas tree light which includes a lamp socket having an outward flange around one end thereof, an outer projecting wall raised around the periphery, and an outside annular groove around the periphery between the outward flange and the outer projecting wall; a lamp bulb fastened to the lamp socket; and a rubber sealing cap having a tapered, hollow, cylindrical cap body mounted on the lamp socket around the lamp bulb to seal the gap between the lamp socket and the lamp bulb, an inward top flange pressed on the periphery of the lamp bulb, a chamfered bottom edge forced into the outside annular groove of the lamp socket, an inside annular flange, an inside projecting wall disposed between the inside annular flange and the chamfered bottom edge, the inside annular flange stopped against and between the inside projecting wall and the periphery of the lamp bulb, and an inside annular groove defined within the cap body and the inside projecting wall to snugly receive the outer projecting wall of the

Abstract: A hand-held fluorescent light includes a handle to be gripped by the user for carring the light. An electronic ballast is contained in the handle for providing starting voltage and for limiting electric current through the circuit elements of the light. A replaceable, phosphor-coated, sealed bulb is connected to the handle and includes at least one electrode located in the bulb for receiving an electric current from the ballast. A shock absorbing bulb socket serves to electrically connect the electrode and the ballast together.

Abstract: A lamp has a cup shaped base which is open at its upper end, a lamp socket mounted in the upper end of the base, a diffuser having a lower end threadably received in the base, a side wall and a top for defining an enclosed space for a lamp bulb. A lamp shade is mounted on a support is disposed at the top end of the diffuser and extends downwardly in surrounding relation to the diffuser. Set screws are provided for securing the diffuser to the base and the shade to the support.

Abstract: The underwater portable drop light for use illuminating work sites in nuclear facilities has a high pressure sodium arc lamp sealed to a stainless steel base with a flexible, radiation-resistant seal to provide a watertight and shock-absorbing connection. A wet-mateable connector is attached to the base to permit underwater-changeable connection to a cable which supplies power from a ballast power supply. A light-transmissive, impact-resistant cover is formed around the arc lamp and attached to the base. The cover has openings through which water can flow in and out to conduct heat away from the arc lamp. The combination of the above elements creates a compact modular unit which is replaced as a whole when the arc lamp burns out, and which may be replaced in or out of the water, allowing maintenance work to continue essentially uninterrupted when radiation exposure time is an issue.

Abstract: A rotatable drop light assembly comprises three alternate embodiments which may be retro-fitted to different types of conventional drop light apparatus for selectively directing the light about a full 360.degree. radius while suspended from an anchor point. A first embodiment comprises a circular plate rotatably mounted to and spring biased toward the top wall of the light reflector/shield, with both including annularly spaced, raised protrusions which go into and out of aligned engagement upon rotating the housing with respect to the anchoring hook. In a second embodiment, a flanged bushing lockingly engages a non-circular aperture in a rotatable plate with the anchoring hook fixed to the bushing. In a third embodiment, a first plate is rotatably mounted to a second plate which is attached to and extends from the top edge of the light shield/reflector.

Abstract: A utility light includes a light source subassembly, removable mounting means and an elongated flexible gooseneck portion having one end connected to the mounting means and the opposite end connected to the light source subassembly. A control switch and a power source are in electrical communication with the light source subassembly. In the light source subassembly, a light bulb mounted in a socket is shielded from impact by a protector, such as a cage or hood. A coating on the cage or hood provides shock absorption and heat dissipation.

Abstract: A lighting system using a PL fluorescent lamp which is capable of screwing into a standard electrical lamp socket utilizing a base member possessing a mechanism for mechanically supporting a PL fluorescent lamp. A male fitting is connected to the base member and includes an outer surface which may be threaded in configuration. An adaptor is also used in the present system and is capable of mechanically and electrically connecting to a standard Edison electrical lamp socket. The adaptor includes an external threaded outer surface for threadingly engaging the standard Edison lamp socket, and also includes an inner surface in the form of a lamp socket. The inner surface lamp socket of the adaptor is capable of mechanically and electrically contacting the outer surface of the male fitting. The adaptor inner lamp socket and male fitting are of a non-standard size. The adaptor locks into the standard Edison electrical lamp socket, preventing its usage by standard incandescent lamp bases.

Abstract: A lamp safety retainer includes resiliently flexible retainer elements in the form of helically coiled spring wire retainers covered with a non-metallic textile material and located beneath the base of a vertically oriented compact fluorescent lamp coupled with a lamp socket in a luminaire so as to intercept the base upon inadvertent uncoupling of the lamp from the lamp socket to preclude fall of the uncoupled lamp from the luminaire, while enabling selective flexing of the retainer elements for deliberate removal and replacement of the lamp in the luminaire.

Abstract: A lamp safety retainer includes resiliently flexible retainer elements located beneath the base of a vertically oriented compact fluorescent lamp coupled with a lamp socket in a luminaire so as to intercept the base upon inadvertent uncoupling of the lamp from the lamp socket to preclude fall of the uncoupled lamp from the luminaire, while enabling selective flexing of the retainer elements for deliberate removal and replacement of the lamp in the luminaire.

Abstract: A probe light is provided with two power lines passed through a long tubular small diameter brass rod extended from a handle with a plug in socket connection to a power supply to a small cross sectional halogen lamp bulb socket for a small diameter halogen light bulb. The halogen light bulb used is a high intensity light bulb pulling relatively high amperage developing considerable heat. The tubular small diameter brass rod, that is bendable for use convenience, conducts heat away from the lamp bulb socket and the plug in leads of the lamp bulb are bent in a wave shape to insure good electrical contact through an extensive heat temperature range. The lamp bulb leads plug into internal openings in the two socket pins held within the lamp bulb socket with the socket pins being heavy duty pins also conducting heat away from the lamp bulb leads.

Abstract: A trouble lamp comprising a longitudinal handle including at one end thereof a light bulb socket; a fixed circular based member secured to the handle adjacent the one end thereof in a coaxial relationship with the socket, the base member having a circular groove in an upper surface thereof adjacent the periphery thereof; a partially circular-like, open sided shade member extending outwardly from the upper surface having one end thereof enclosed and the other end thereof engaging the groove; and a stationary arrangement extending from the upper surface to the enclosed end of the shade member to provide a pivot member for the shade member to enable rotation of the shade member about the pivot member in the groove.

Abstract: A high pressure metal halide discharge lamp having a containment sleeve closed by a pair of metallic end caps for containing arc tube fragments in the event of explosive failure of the arc tube. Insulators secured in the end caps electrically insulate the arc tube lead-throughs from the end caps. Metallic tubes fixed on the lead-throughs butt against the insulators to secure the arc tube between the end caps and hold the end caps against the containment sleeve. Photoelectric emission from the end caps is avoided by electrically isolating the end caps or by providing a dielectric coating on end cap surfaces exposed to ultraviolet radiation.

Abstract: Disclosed is a light fixture assembly which includes a standard socket for receiving an electric light bulb and a sleeve with a cylindrical opening, the sleeve being rigidly mounted around the socket in order to conceal and protect it while at the same time supporting a lamp shade. The shade comprises a fixation collar sized to facilitate its insertion into the cylindrical opening of the sleeve. This basic structure which is known per se is improved in that the shade is rigidly fixed to the sleeve via the fixation collar by force-fitting male and female elements disposed respectively on the interior surface of the sleeve and the exterior surface of the fixation collar in order that the female elements receive the male elements when the lamp shade connection ring is forceably inserted into the cylindrical opening. Each female element is preferably disposed at the end of a circumferential groove opening at the leading edge of the ring to receive and guide the corresponding male element.

Abstract: A portable work light including an elongate fluorescent bulb for emitting light when powered from an electrical current source, an elongate, transparent, relatively thick protective shield, a shock absorber within the shield mounting the bulb within the shield in spaced-apart relation thereto against breakage of the bulb from shock or impact. In addition, an elongate, transparent, relatively thin disposable scuff guard is positioned over the shield to protect the shield from scratching and scuffing and which can be replaced when scratched and scuffed to restore full light transmission to the work light.

Abstract: A fluorescent lamp unit including an adapter which contains a ballast, a fluorescent lamp electrically coupled to the adapter, a compressible gasket member and a jacket. The jacket is adapted to be easily removed from the unit upon failure of the fluorescent lamp. An inwardly protruding ledge which extends radially around the interior of the jacket provides a bearing surface for contacting the gasket member. Preferable, the lower portion of the jacket member is provided with a pair of diametrically opposed grooves for engaging a pair of lugs formed in the housing of the adapter. Preferably, each of the grooves has an offset portion and a stop for locking the lugs in place and thereby preventing rotation of the jacket member with respect to the adapter until the gasket member is compressed.

Abstract: An economical string light includes a molded socket or base having an integral hook for attaching to a messenger wire for support and first and second insulation-displacement connectors for coupling to the electrical power wires. The lamp guard is formed of two identical protector elements which have a coupling collar for connecting to each other and to a retainer flange on the socket. The protector elements are hinged from the coupling collar to open in a clamshell fashion to facilitate lamp replacement, and the protection elements couple together with snap couplers to form the complete lamp guard.

Abstract: A single-piece lamp cage molded of plastic and adapted to be secured to a lamp socket to protect the lamp therein. The cage includes stationary and hinged cage sections connected to one another by a living hinge which permits the hinged section to be swung to an open position enabling changing of the lamp without need of removing the cage from the socket. A collar and a hinged clamp are molded integrally with the upper end of the stationary cage section and enable the cage to be installed on the socket without need of tools or hardware.

Abstract: To permit use of materials having different melting temperatures and still rovide a two-component base for a lamp operating at high temperature, for example a halogen incandescent lamp, the base includes a base cup (5) of high heat-resistant plastic material, connected to an attachment element (13) by interengaging snap-in spring fingers (15) and recesses (9,10). To prevent separation of the attachment element from the base cup, the spring fingers are located inside of a solid wall portion of the attachment element and the base cup is formed with projections (8, 11) for example a circumferential flange or bead, extending over the spring fingers when they are snapped into matching recesses formed in the base cup so that, after assembly, the connection cannot be loosened, either inadvertently or deliberately.

Abstract: A trouble light incorporates a circuit breaker in its handle to reduce the possibility of shock to a user. The handle is formed of right and left shells and includes a screw-type receptacle for a lamp and an electrical plug receptacle. The circuit breaker is connected in a series with a power cord, and to the screw-type receptacle and the electrical plug receptacle. The circuit breaker instantly interrupts power to the receptacles upon detection of excess current flow in the circuit in the trouble light. The handle shells are molded from an insulating material such as plastic and internal webs are formed to retain the various electrical circuit elements in the handle.

Abstract: A sleeve type lamp stabilizer that is made so that it will fit over a lamp socket, to be rigidly held in place with respect to the socket. The stabilizer can be clamped to the socket or rigidly connected to the lamp housing which mounts the socket. The sleeve type stabilizer has pads that support the lamp at the lamp neck. The need for support results from the common practice to provide a small amount of clearance between the lamp socket and the mating base of the lamp to insure that the lamp will not corrode in place or otherwise become stuck in its socket when it is time to replace the lamp with present large lamps. This slight amount of play in the socket translates into a large amount of movement at the opposite end of the lamp and thus the independent support stabilizes the lamp, and prevents mechanical vibrations from prematurely causing lamp failure.

Abstract: A utility lamp having a handle containing a receptacle outlet and an electrical cord at its bottom end. A bulb cage is affixed to the handle to protectively enclose a bulb inserted into a bulb receptacle. The bulb cage includes a triangular shaped reflector having a plurality of back light slits. A hook is swively mounted to an elongate tube, which is affixed to the reflector. A plurality of spring biased gripping fingers are mounted within the tube and are extendable without the upper end of the tube to facilitate hanging the utility lamp on a projecting means such as a screw.

Abstract: A submersible fishing light in which the electrical components are sealed within a water impervious plastic shell. Insulated electrical wires extend into the shell and connect with a socket which receives the base of an incandescent bulb. The base of the bulb is threaded through a lead weight which serves as ballast. The neck of the bulb is sealed to the shell by a compressible sponge ring. A metal wire has hook ends embedded in the lead weight and forms an eye through which the electrical wiring extends. In an alternative embodiment, a protective cage surrounds the bulb and is anchored in place by rods having hook ends embedded in the lead weight.

Abstract: A shock-cushioned lamp mounting structure for use as a license plate illuminator, installed on a vertically rotatable rear door. The shock-cushioned mounting structure includes a housing for a license plate lamp, a light bulb mounted in a lamp socket assembly, and means for absorbing the shock generated from the opening and closing of the vertically rotatable rear door.

Abstract: A protective casing (20) for a lamp holder (10) for outdoor use comprises a cylindrical part (21) and a bowl-shaped base part (22) which are made of a relatively soft, elastic material and can be clamped axially together around an ordinary lamp holder (10). The engagement faces between the two parts are formed with radial recesses (27), which together form a hole for the lead-in of a cable and are dimensioned so that the cable is fixed upon the clamping. This provides a seal for the cable lead-in and also tension relief of the cable. Due to the clamping, a sealing ring (25) for the lamp (14, 15) is fixed between an end edge of the holder (10) and a rim flange (26) of the cylindrical part (21).

Abstract: A shock absorptive magnetic mounting support for a light fixture or the like object includes a base having a magnet mounted thereon for magnetically securing the mounting support to the underside of a metallic shelf or support surface. A support shaft upon which the light fixture is mounted has a threaded end portion received in an aperture in the base. A stop adjacent the threaded end portion limits the insertion thereof into the aperture. A rubber washer of a predetermined thickness is received on the threaded end portion of the shaft in abutting relation with the base. A nut, and, if desired, a lock washer, is received on the threaded end portion of the support shaft. The nut is tightened down against the rubber washer to secure the base and support shaft in a joined condition. The shock absorptive arrangement aids in preventing detachment of the magnetic base from the metallic shelf support in the event of the application of force to the upper side of the shelf.

Abstract: A trouble lamp is constructed to provide a sliding movement between a light bulb and a reflector shield with slip friction fit between parts such that they may be manually positioned to provide the quality and amount of light desired by the operator.

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.