Abstract: A reduced emissions work light includes a bulb with an elongated bulb tube. A handle is provided adjacent the bulb, and is adapted for being gripped by a user to manipulate the work light. An emissions containment housing is located within the handle. A ballast is located within the housing, and is operatively connected to the bulb. An emissions filter is located within the housing, and is operatively connected to the ballast. The filter and housing cooperate to reduce emissions generated by the work light.

Abstract: A lighting system is provided including an illumination member, a housing and a resilient element. The illumination member has an electricity conductive portion and a light-emitting portion. The housing defines a chamber for receiving therein the illumination member and includes a socket portion adapted for engaging the electricity conductive portion of the illumination member. The resilient element establishes a contact between the illumination member and the housing for biasing the electricity conductive portion against the socket portion. In a variant, the housing has a light receiving portion defining the chamber and a passageway to the chamber. The housing includes a cap adapted to be removably connected to the light receiving portion for sealing the passageway. In this variant, the illumination member includes a handle portion enabling the removal of the illumination member from the chamber through the passageway.

Abstract: A work light frame for holding a lens to an electric halogen work lamp is disclosed. The work light frame has a front and a back, and preferably has a channel-shape cross-section. A storage compartment for holding a spare bulb is incorporated into the back of the frame and is recessed within the channel-shape cross-section. The storage compartment is covered by a door and has bulb retention structures therein. Preferably, the storage compartment is located at the top of the frame and the frame is hingeably attached to the lamp at the bottom.

Abstract: A direct backlight apparatus for a Liquid Crystal Display (LCD) panel includes a lamp housing and a lamp. The lamp housing accommodates a support structure disposed on the bottom of the lamp housing wherein an open end is defined by one side of the lamp housing. The lamp, supported by the support structure, is installed in the lamp housing and is further attached to a holding structure at one end of the lamp, for holding the lamp. The lamp is removed from the lamp housing through the open end by moving along a direction of the support structure when a force is exerted on the holding structure.

Abstract: A lamp having at least a portion of a body formed of translucent material defining a hollow chamber within which a low light level light bulb is housed. A portion of the body is removable to provide easy access to the light bulb for removal and changing when required.

Abstract: A lamp structure including a lamp housing, and a circular ring piece, a lamp holder, and a lamp locking-collar all assembled in the lamp housing sequentially. The lamp housing has holes on a surface for extending a wire through and has a stepped portion on an inner wall. The circular ring piece is placed in the lamp housing supported and fixed by the stepped portion. The lamp holder has a space for receiving a lamp bulb, and a protrusion on an external periphery engaging a notch provided on an adjustable compressible portion when the lamp holder is mounted. The lamp holder abuts against and is fixed on the circular ring piece. The lamp locking-collar and the lamp housing both have grooves for an elongated member (spring). The lamp locking-collar has gaskets for a waterproof seal.

Abstract: A halogen worklight of the type having a peripheral frame or bezel that is completely removable to provide access to the bulb chamber for re-lamping. The peripheral frame is provided with a handle secured directly to the bezel for use in removing the bezel and for positioning the bezel when re-mounting it to the worklight body. The handle may be changed from one side of the bezel to the other to convert the worklight between right and left-handed.

Abstract: A landscape lightpost that provides a substantially enclosed wire compartment. The lightpost includes a main post, a cap, a separator plate, and structure for positioning the separator plate between the main post and cap, to form the substantially enclosed wire compartment.

Abstract: The present invention relates to a LED spotlight (type I), which includes a lampshell and a light-collecting cover, wherein the cover has its bottom provided with an aperture to engage with a LED. The light-collecting cover is capable of reflecting and concentrating the light emitted from the LED to a same direction that provides an efficient spotlight.

Abstract: A protective overhead light fixture kit is provided for use on an overhead light fixture having an electrical housing and a dome-shaped reflector. The kit includes a grid member, a band, two or more extension springs and a lanyard member. The grid member is situated generally across the open end of the reflector. The band member is placed generally around the outer perimeter of the light fixture reflector. The extension springs include two connection means where one of the connection means is capable of attachment to and outer portion of the grid member and the other of the connection means is capable of attachment to the band. The lanyard member also includes two ends where one end is capable of attachment to the outer portion of the grid member and the other end is capable of attachment to the band. This kit when installed can convert an unprotected overhead light fixture to a protected overhead light fixture.

Abstract: A light fixture cover system and method is disclosed in which the selectively detachable cover is also a unitary structure including a body having a peripheral sealing lip that fits over any corresponding industry standard outside light fixture. From the outset, it should be noted that while the cover is illustrated generally as being of a round configuration, the cover may be of various other configurations such as rectangular, oval or square by way of non-limiting examples to fit all shapes of exterior light fixtures. The sealing lip of the cover has at least one laterally extending tab member to assist in removing the cover from the fixture. The cover portion is preferably made from a resilient polymeric material suitable for both winter and summer weather conditions in addition to being impervious to the heat generated by the electrical bulb or bulbs contained it the light fixture.

Abstract: The recessed light fixture has an adjustable structure enabling it to be rotated in relation to the ground located beneath it or other reference level so that it is level, while it remains attached to a support structure. The recessed light fixture includes a cover and a light assembly contained within a housing. The light assembly is attached to the housing using retention members that are positioned within elongated receiving slots located on the light assembly. The receiving slots allow the light assembly to be rotated within the housing. Further, the receiving slots enable the light assembly and cover attached to the light assembly to be repositioned without having to reinstall the housing.

Abstract: A lighting system is provided including an illumination member, a housing and a resilient element. The illumination member has an electricity conductive portion and a light-emitting portion. The housing defines a chamber for receiving therein the illumination member and includes a socket portion adapted for engaging the electricity conductive portion of the illumination member. The resilient element establishes a contact between the illumination member and the housing for biasing the electricity conductive portion against the socket portion. In a variant, the housing has a light receiving portion defining the chamber and a passageway to the chamber. The housing includes a cap adapted to be removably connected to the light receiving portion for sealing the passageway. In this variant, the illumination member includes a handle portion enabling the removal of the illumination member from the chamber through the passageway.

Abstract: A light source device for a medical endoscope system comprises a lamp unit including a xenon lamp and a heat sink, a lamp housing in which the lamp unit is removably set which is provided with first power electrodes and discharge electrodes of a discharge circuit. These first power electrodes and discharge electrodes are biased in a direction of removal of the lamp unit. The first power electrodes are brought into contact with the heat sink and thrust back by the heat sink when the lamp unit is set in the lamp housing. The discharge electrodes are thrust back away from the discharge circuit by the heat sink on the way of insertion of the lamp unit into the lamp housing and allowed to return to electric coupling to the discharge circuit on the way of removal insertion of the lamp unit from the lamp housing.

Abstract: A light emitting device comprises a light emitting element, a metal package having a recess part for housing the light emitting element and a base part which has one or more through holes, one or more lead electrode pins which penetrate the through holes and are separated from the through holes by a insulating member respectively, wherein the bottom faces of the lead electrode pins project out from the bottom face of the base part and positioned on a same plane including a outer bottom face of the recess part. With this configuration, the light emitting device which has a good heat radiating characteristic and high mechanical strength.

Abstract: A rear pushbutton type switch arrangement for flashlight formed of an aluminum alloy barrel holding a battery set and a lamp assembly, an electrically conducting rotary rear cap provided at a rear side of said barrel and a switch structure is disclosed. The switch structure has an externally threaded, electrically conducting, hollow, cylindrical metal casing connected between the barrel and the rotary cap to hold the other parts of the switch structure firmly in the rotary rear cap so that the other parts of the switch structure do not fall from the rotary rear cap when disconnected from the barrel for a replacement of the battery set.

Abstract: Systems, devices and methods for lighting include a lighting fixture having a first electrical system including a first set of electrical components operable by a first power source located remotely from the lighting fixture. A first light-emitting device is mountable to the housing and energizable through the first electrical system during periods of predetermined levels of light. A second electrical system including a second set of electrical components is operable by a second power source located locally with respect to the lighting fixture. A second light-emitting device is mountable to the housing and automatically energized through the second electrical system during predetermined levels of power from the alternating current power source. And, the first set of electrical components are distinct from and independent of the second set of electrical components. Methods of lighting and reducing energy costs through incorporating the lighting device are also disclosed.

Abstract: A headlamp includes a base having a front face defining a first imaginary plane along the front face and a first imaginary line orthogonal to the first plane. A light assembly is rotatably secured about the front face to the base. The light assembly includes a bezel having a rear surface defining a second imaginary plane along the rear surface and a second imaginary line orthogonal to the second plane so that the intersection of the first line and the second line defines a rotation angle that varies with the rotation of the light assembly relative to the base, thereby changing the attitude of the headlamp light assembly.

Abstract: A luminaire retrofit panel including a main wall adapted to support a luminaire in a central opening of the main wall, and including an outer perimeter. A side wall extends from the outer perimeter of the main wall. A plurality of secondary walls extend from the side wall and extend over a portion of the main wall toward the central opening of the main wall. The secondary walls are substantially parallel to the main wall. The plurality of secondary walls support at least one hinge and at least one latch. The hinge is engagable with a frame and allows the main wall to pivot with respect the frame. The latch is engagable with the frame to hold the main wall to releasably secure the main wall to the frame.

Abstract: The present invention pertains to a night light assembly which plugs directly into a wall receptacle to provide a beam of light that can be directed along different paths. The assembly comprises a base member having a plug with projecting blades for insertion into a wall receptacle, a light sensor for automatically controlling activation and de-activation of the lamp of the nightlight and cover member rotatably supported by the base member. The cover member includes a lens, a low wattage lamp located within a lamp support member. The low wattage lamp is coupled via sliding contacts to the PCB board-blade contacts assembly in the base member. This arrangement allows the cover member and lamp to rotated as a unit relative to the base member without limitation. The lamp support member is non-rotatably coupled to the cover member and is rotatably coupled to the base member.

Abstract: A double lamp utility light includes a vertically split light housing formed in two halves with an elongated upper light portion extending from a hollow lower handle portion. An electrical outlet is provided in a bottom surface of the handle. A pair of switches on the handle control respective ones of a pair of twin bulb fluorescent lamp assemblies. A lens assembly is releasably attached to the housing and can be removed and installed without tools for changing the lamp assemblies.

Abstract: A lamp connection port connected to a ceiling fan assembly includes an open end which is enclosed by a skirt portion of the connection port. A plurality of flexible protrusions extend inward from an inside of the skirt portion and a first end of a lamp shade is engaged in the open end of the lamp connection port. The first end of the lamp shade has a flange and a groove is defined in an outer periphery of the lamp shade. The flexible protrusions are engaged with the groove of the lamp shade.

Abstract: An ornamental lamp having a colored coarse surface in the periphery of the bulb thereof, the colored coarse surface having a plurality of recessed and protruded ornamental lines extending in different directions and intersecting one another, showing a design.

Abstract: A light string is composed of multiple light emitting units. Each light emitting unit utilizes multiple LEDs as the light emitting source to generate various light colors for enriching visual effects. Further, the light string is able to adhere to form any particular configuration as an attractive advertising device. By using the LEDs as the light source, power consumed by the light string is very low and operators of the light string are not exposed to high voltages.

Abstract: The present invention is directed toward an attachment for a light fixture. More specifically, the present invention is directed toward an attachment for retaining one or more lenses in position for use with light fixtures that have a housing in which the light source is recessed. The lenses may be, for example, colorless transparent lenses, colored transparent lenses, colorless translucent lenses, colored translucent lenses, louvered grates, and diffusing grids. Further, the lenses may be made out of any material that is known in the art or has yet to be developed, but are preferably made of a rigid material such as plastic. The preferred embodiment of the present invention comprises generally an attachment body and an attachment insert. The attachment body comprises an inner sleeve, a means for retaining the inner sleeve on a recessed housing, an upper eave connected to the inner sleeve, a recessed cavity in the upper eave, and a means for securing the attachment insert to the attachment body.

Abstract: An optical interface for coupling a refractor and a reflector in a luminaire assembly includes a flange having an inner surface and an outer surface, the outer surface having reflecting means and disposed adjacent an air gap, the flange having a shape which works in concert with the reflector and is adapted to be affixable to the reflector and the refractor.

Abstract: A compact sized UPS' built-in lighting equipment is disclosed. It is essentially composed of a light source, a shade, a shade, a holder ring, a fixing device, and an erected stand. By erecting the stand in the shade perpendicular to the shade axis instead of protruding the lamp holder parallelly backwards to the shade axis as that has been practically adopted in conventional techniques so as to attain the purpose of minimizing the equipment size. Besides, provision of switch means makes it possible to control ON/OFF of the power supply to the lighting equipment so as to effectively utilize the electrical energy.

Abstract: A vehicle lamp structure that enables reliable engagement even when variations occur during molding is described. In a vehicle lamp, an attachment base body 2 may be coupled to a lens 6 covering a front surface thereof by engagement of at least a part. The lens is provided with an engagement leg portion 9 which is inserted into the body so as to be engaged with an engagement portion 10 of the body. First and second engagement protruding portions 11, 12 are formed, with a space therebetween that face the engagement portion of the body. A front surface 11a of the first engagement protruding portion is a slanted surface that is increasingly displaced to a side opposite the insertion direction.

Abstract: A lighting assembly includes a tubular cover and a longitudinal open bottom is defined through the cover. A bottom plate is slidably connected to the open bottom of the cover and a plurality of reinforcement ribs extend from an inner side of the cover. Two groove are defined in the reinforcement ribs and two bulbs are slidably engaged with the grooves. An electrical piece is connected to a first end of the cover and electrically connected to the bulbs. An end cap is connected to a second end of the cover.

Abstract: A hinge mechanism for a lighting assembly has a base with a slot, a shuttle guide extending from edges of the slot, a shuttle coupled with the base and capable of sliding through the slot and shuttle guide between an up position and a down position, and a link rotatably coupled to an end of the shuttle. An angle between the shuttle guide and the base is acute to allow the shuttle to easily slide into the shuttle guide. The base has a catch lip that extends from a back edge of the slot, wherein the catch lip is capable of deflecting the link slightly as the shuttle passes through the slot. Apertures in the shuttle and the shuttle guide align when the shuttle is in the up position. The link has a lip that inserts into the apertures in the shuttle and the shuttle guide to releasably hold the shuttle in the up position. The shuttle has tabs on an upper end of its back side to keep the shuttle from dislodging from the shuttle guide.

Abstract: The invention relates to a remote access system designed to make the task of positioning, manipulation and/or maintenance of devices, which are difficult to access or in hostile environments, a much easier operation. The system comprises remote manipulation whereby a device (420), such as a bulb, may be moved from a remote access position (200) along a guide (300) to an enclosure position (100). The enclosure position may, for instance, comprise an area formed in the side wall of a swimming pool, such that, a lens (120) of the enclosure sure (100) is arranged, in use, to have the device (420) to one side of it, and, sealed from the device on the other side of the lens (120), there may be water. By providing an arrangement whereby the device (420) can be remotely positioned, the need for draining a swimming pool for the simple replacement of blown bulbs etc. is avoided.

Abstract: An in-ground light fixture is disclosed having multiple separate and watertight compartments for the various components of the fixture, allowing for maintenance and service of the fixture without exposing weather-sensitive components to the elements. The fixture also includes a pan and tilt assembly, which can be selectively controlled with a common household tool to change the direction of the light without having to access the pan and tilt assembly.

Abstract: A light fixture assembly (100) having an electrical component module (110) which may be mounted to the fixture housing (120) without tools and without requiring additional hardware or space upon the electrical component module (110). The electrical component module (110) is capable of being held in a substantially stationary position by at least one bracket (255), at least one stop (270), and a releasable catch (265).

Abstract: A ceiling surface-mounted fixture housing capable of supporting decorative trim of differing shapes and sizes and further being capable of surface mounting to ceiling drywall about a recessed junction box mounted in the ceiling or to inverted T-grid ceiling systems, the invention provides flexibility and function and ease of installation. In a preferred embodiment of the invention, a fixture housing having a substantially central aperture formed in a major planar floor thereof is mounted by conventional fasteners over a junction box which has previously been installed in a recess of a drywall ceiling or the like. Wiring for the junction box extends into the fixture housing from the junction box and is joined to wiring carried by a wireway cover which joins mechanically to the fixture housing, the wiring thus being carried within a “box” formed by the fixture housing and the wireway cover. Lamping and ballast are mounted to an exterior major surface of the wireway cover.

Abstract: A tool-less entry landscape fixture having a base structure, a fixture cover hingeably attached to the base structure, a flexible closing mechanism depending from said fixture cover, and a structure for retaining said flexible closing mechanism. Electrical components of the light fixture are sealed by sealing gaskets, preferably of silicone, located on an upper and lower circumference of the optical lens. The tool-less entry landscape fixture's flexible closing mechanism is operable by hand so that tools are not required for routine maintenance such as changing of a bulb. Moreover the tool-less entry landscape fixture has no small parts which require removal during routine maintenance.

Abstract: A vehicle lamp assembly comprises a lamp housing, a lens, and a closeout sub-assembly. The closeout sub-assembly comprises a closeout and a template attached to the closeout. The closeout sub-assembly is created by forming the closeout around the outer periphery of the template such that the outer portion of the closeout is located adjacent to and outside of the peripheral edge of the template. The vehicle lamp assembly is created by affixing the closeout sub-assembly to the outer periphery of the inner surface of the lens and attaching the lens to the housing such that the closeout sub-assembly is located between the lens and the housing and such that the outer portion of the closeout is located adjacent to and outside of the peripheral edge of the lens.

Abstract: A double lamp utility light includes a vertically split light housing formed in two halves with an elongated upper light portion extending from a hollow lower handle portion. An electrical outlet is provided in a bottom surface of the handle. A pair of switches on the handle control respective ones of a pair of twin bulb fluorescent lamp assemblies. A lens assembly is releasably attached to the housing and can be removed and installed without tools for changing the lamp assemblies.

Abstract: A sensitive lighting fixture is specifically designed to incorporate with the construction junction box built on wall, ceiling or floor to form a utility lighting device, wherein the sensitive lighting fixture includes a base seat including a front plate and a recessed case rearwardly extended from the front plate, a light source disposed in the light source socket, a light shade detachably attached to the front plate of base seat and sized to cover the light source opening, a control sensor provided on the front plate of the base seat and exposed to outside, and a control device for electrically connecting the light source with the electric wires extended inside the construction junction box and electrically connecting the control sensor and the light source in such a manner that the control sensor turns the light source off when the visible light detector detects ambient light and on when the control sensor does not detect ambient light.

Abstract: A lighting fixture has a housing with a latching surface, a frame coupled to the housing and having a slot, a refractor or lens supported by the frame, and a latching member coupled to the frame. The latching member includes a main flexing portion, a lead portion extending from one end of the main flexing portion and received in the slot of the frame, and a cam portion extending from an opposite end of the main flexing portion. The latching member moves between a released position with the latching member disengaged from the latching surface of the housing, and a latched position with the latching member engaged with the latching surface of the housing.

Abstract: In a preferred embodiment, a lighting fixture lens retainer for a lighting fixture of the type having a generally horizontally extending first lens held in upper and lower fixture members by insertion of first and second mounting flanges formed, respectively, along upper and lower edges of the first lens inserted into first and second mounting grooves formed, respectively, along the upper and lower fixture members, the lighting fixture lens retainer comprising: a retaining member being disposed within the lighting fixture and being movable between a first, open position in which the retaining member is spaced apart from an inner surface of the first lens and a second, securing position in which the retaining member bears against the inner surface of the lens in such manner as to secure the first mounting flange in the first mounting groove.

Abstract: An apparatus and a method for fastening a screw between a vehicular lighting device body and lens is provided, in which there is no possibility that a seal material drips out. A lamp body is held by the lower jig so that a seal groove is directed upward, and a front lens is held by an upper jig so that a seal leg is directed downward. The upper jig is lowered from a position above the lamp body and pressed together therewith, so that the seal groove and the seal leg are engaged together via a seal material. A fastening screw is positioned beneath the lamp body (seal groove) with the fastening screw directed upward by a screw fastener element located within a lower portion of the lower jig. The lamp body (seal groove) and the front lens (seal leg) are pressed and secured by the screw. No seal material drips out from the seal groove in the process. Further, the time required for pressing together and fastening the lamp body to the front lens can be shortened.

Abstract: A removable, reusable cover assembly for a light assembly has a light filtering cover with an interior that surrounds a lamp of the light assembly and a connector that attaches to the light assembly. The cover assembly has first and second vent holes that communicate with the interior of the cover. During energization of the lamp, the air in the interior of the cover is heated and escapes through the first vent hole. Cooling air is drawn through the second vent hole into the interior of the cover to cool the lamp.

Abstract: A globe lighting assembly comprises a metal cage, a plastic globe at least partially surrounded by the metal cage, a reflector reflecting light from a light source throughout the globe, and a socket clip disposable into the reflector. The socket clip includes legs having at least one position along each of the legs corresponding to settings for the light source in the reflector. The metal cage has lower and upper rings, and prongs which all surround and give structural support for at least one of an upper portion and a lower door of the globe. The upper portion is hingedly connected to the lower door. The lower door has a circular rim that fits into an inner surface of the lower ring when the globe is in the closed position. As a result, the circular rim of the lower portion is not viewable from the outside of the globe. The lower ring of the cage has an inner circular lip that aids in preventing moisture from entering an interior of the globe.

Abstract: A lighting fixture has a housing with a latching surface, a frame coupled to the housing and having a slot, a refractor or lens supported by the frame, and a latching member coupled to the frame. The latching member includes a main flexing portion, a lead portion extending from one end of the main flexing portion and received in the slot of the frame, and a cam portion extending from an opposite end of the main flexing portion. The latching member moves between a released position with the latching member disengaged from the latching surface of the housing, and a latched position with the latching member engaged with the latching surface of the housing.

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: A light fixture is provided having a mounting bracket and a light housing secured to the bracket. The bracket further includes a securing member for securing the bracket to a fixed surface, an extension projecting from a surface of the securing member, and a housing support placed at the end of the extension for supporting the light housing. The light housing has a receiver for placing over and mating around the housing support when the housing support is slid inside the receiver. To position the light housing on center with the bracket, a locating member connected to the bracket mates with and guides the light housing into a centered position. The light housing further includes a door and, when in a closed position, the door has a tab extending underneath the bracket such that the light housing cannot be removed from the bracket without opening the door.

Abstract: A lighting fixture includes a housing, a frame, and a hinge assembly pivotally coupling the frame to the housing. The hinge assembly includes a first hinge part fixed to and extending from the housing and has first and second support arms and a pin extending between the support arms. A centering bar is located between the first and second support arms. The hinge assembly also includes a second hinge part extending from the frame and slidably engaged with the first hinge part. The second hinge part has a first arcuate lead arm and a first trap arm defining a receiving area between the lead arm and the trap arm. The pin of the first hinge part is received in the receiving area of the second hinge part. This allows the second hinge part to slide relative to the pin. Each of the lead and trap arms of the second hinge part is disposed near opposite sides of the centering bar of the first hinge part.

Abstract: An oven light assembly includes a lens, a housing, a lamp base and a light bulb. The lens and housing protect the light bulb from the oven environment. The housing includes a rim having cantilever beams and louvers that engage flanged lips on an outer edge of the lens. Cantilever beams apply an upward force to maintain the flanged lips in the louvers. The housing maintains the lens properly positioned and allows removal of the lens without the use of tools.

Abstract: A light assembly (20) that includes a frame (28) and a body (22) disposed within the frame. A reflector (26), a socket (46) and a bulb (24) are disposed in the body. A lens (30) is fitted over the reflector, socket and bulb. The lens is snap fitted in a bezel ring (32). The bezel ring is snap fitted over to the body so as to be positioned around the reflector. The body is snap-fitted to the frame. An assembler of the light assembly of this invention can maintain a stock of frames, bodies and bezel rings that have different colors or other characteristics, such as on/off switches. Upon receiving an order for a light assembly in which the specific characteristics of the color are specified, the assembler selects the appropriate components from stock and assembles them together to provide the desired assembly.

Abstract: A lighting fixture frame with two diecast hinges. One part of each hinge has a split trough molded-in with the body of the mounting member. One side of the split trough has a molded ball rib. The second part of each hinge has two pins molded-in with the lens frame. The pins extend parallel to the edge of the frame. One pin from the hinge has a ball groove located around its base. The ball rib and ball groove slide together for centering and allowing ample clearance between the body and the frame. A lock can releasably cover one pin of each hinge, to retain pins in the troughs, while allowing the hinges to pivot.