Abstract: An RF expansion joint for an electrically sealed enclosure having first and second wall members which are movable relative to each other. The joint includes guide means for maintaining the wall members in alignment during movement. The wall members each have a shielding material on their outer surfaces with a shield extension extending from the shielding of one wall member and overlying the shielding material of the adjacent wall member and an electrical sealing means is positioned between the extension and the shielding material over which it lies.

Abstract: After removing a portion of the insulative covering from a cable leaving exposed the bare shield, a circumferential cut is made in the shield. A flanged, split-ring cylindrical metal contact is located underneath the braid with the flange extending through the cut. Shrink tape applied over the exposed shield serves to hold this shield and portions of the underlying contact together. A receiver tube located on the cable has an internal shoulder which fits against the contact flange and a gland nut threaded into the open end of the receiver tube has an internal end pressing against the contact flange to force it into contact with the receiver tube internal shoulder.

Abstract: A watertight enclosure for use in an outdoor junction box for use in housing electrical connections such as solar panel installations includes a mating base and cover. The base is bounded by an upstanding peripheral wall having a channel profiled in the top. The mating cover has an outwardly facing channel formed by upper and lower peripheral parallel flanges. The lower flange on the cover fits into the channel in the box member and the upper flange overlaps the outer wall leaving a slight gap providing the only opening to the otherwise enclosed duct about the periphery of the assembly. Wires passing through bores in the upstanding wall are sealed by compressing elastomeric spheres which bore into conformity with the wires passing therethrough.

Abstract: Packaging of discrete semiconductor devices is improved by dimpling metal caps prior to assembly onto headers and welding.The dimpled caps provide a friction fit to the headers, whereby fewer assembled, but unwelded packages separate during handling. The dimples are more economical and more reliable than prior art crimps which perform a similar function.

Abstract: In accordance with the preferred embodiments of the invention, provided is a hermetic ceramic/glass enclosure for encapsulating semiconductor components which reduces the internal cavity moisture and contamination levels, has a stronger package seal and a lower sealing temperature than hermetic ceramic/glass enclosures currently used. Included in the first embodiment is a lower substrate, with a conductive leadframe attached thereto via devitrified glass and a layer of vitreous glass on the leadframe for attaching a cap which also includes a layer of vitreous glass. To seal the enclosure, the cap is heated to a temperature T1 above the melting point of the vitreous glass, and the lower substrate, is maintained at a temperature high enough to bond to the vitreous layer on the cap on contact, but low enough to eliminate damage to the semiconductor component and additional Gold-Silicon eutectic formation between the semiconductor component and the enclosure lower substrate.

Abstract: An adjustable connector secures an outer covering of an electrical line to an outlet box having an opening therein for receiving the connector. The connector comprises a body having a first open end and a second open end for insertion into the opening in the outlet box. The connector is secured in the opening of the outlet box and is contained within the second end of the body. A holder for holding the outer covering of the electrical line is also provided and is contained within the first end of the body.

Abstract: A connector for perpendicularly mounting a helically grooved metallic conduit onto a junction box or the like. the connector is a one-piece metal member with a center ring from which projects two pairs of projections. The first pair form a compressible tubular member adapted to threadably receive the grooved conduit. The other pair form locking wing means to resiliently engage the wall of the conduit box when the connector is inserted into a hole therein.

Abstract: A pin grid array package is disclosed for an integrated circuit chip having a preformed main body member of a first synthetic organic polymer with a central cavity in which the integrated circuit chip is mounted, a metallized layer of a second synthetic organic polymer being bonded to said preformed main body member for electrical interconnection to the chip, and with terminal pins protruding from said preformed main body member as a means to further electrically interconnect the chip to exterior electrical terminals. A method to form said main body member is also disclosed using a thermoplastic polymer wherein the terminal pins along with a recessed base element provided in said body member for improved thermal conductivity are included when said main body member is first molded. A further method whereby the integrated circuit chip is assembled in said plastic carrier package is also disclosed.

Abstract: An electrical cable assembly for use in particular with undercarpet wiring systems has a flat multiconductor cable encased in electrical insulation, an insulative film extending lengthwise on the cable and an electrically conductive member overlying the film lengthwise, the conductive member having successive lengthwise extents that are respectively unsecured and secured to the cable. The film is provided with openings therethrough in registry with an exclusive one of the cable conductors through which the conductive member extents are connected to the cable. An electrically conductive shield preferably extends lengthwise with and overlies the conductive member. The shield is selected from material having a hardness greater than that of the conductive member. The material of the conductive member is preferably less cathodic in the electromotive series than the shield material so that in the presence of a corroding medium the shield and not the conductive member will first galvanically corrode.

Abstract: A ventilation panel comprising a rectangular grating for electromagnetic shielding which is arranged in a rectangular frame and has a cell structure. The grating is resiliently enclosed in the frame by means of a comb-shaped mounting spring which also holds the complete ventilation panel resiliently clamped between two walls of a box with electrical components. The mounting spring further provides an electromagnetic shielding at the area of the separation between the ventilation panel and wall portions of the box. The ventilation panel is used in racks for data-processing apparatus, such as public telephone exchanges.

Abstract: An electrical box designed to minimize the potential for sound, smoke or fire traveling therethrough when wall-mounted and has an interior rigid housing and a molded non-combustible exterior casing. The casing is a unitary, single-piece sheathing, having openings only for attachment of line conduit. A tubular collar portion extends outwardly from the front opening of the box, and is easily cut or machined to conform to the adjacent wall surface.

Abstract: An adapter fitting for connecting a corrugated flexible conduit to an electrical outlet box which includes a pair of substantially identical, semi-cylindrical cooperating fitting halves. Each fitting half carries a projecting, externally threaded neck portion, and the halves are joined by an internally threaded locking ring. A radially inwardly projecting corrugation engaging rib is provided on the inner side of each fitting half.

Abstract: A connector or clip for grounding one or more electrical conducting leads in a microelectronic circuit case. A connector in the form of a metal plate attached to a wall of a case and to an insulated lead projecting through the wall, providing an electrical conducting path between the lead and the case. A connector plate with a flat face and a slot therein, and in one embodiment with an outwardly projecting tab at the bottom of the slot, with the connector being suitable for attachment by low temperature and high temperature brazing and spot welding.

Abstract: An enclosure box for receiving an electrical receptacle unit therein. The box has movable hangers adaptable for holding electrical cords which are attached to plugs mated with the receptacle unit. The hangers may pivot or snap outwardly to facilitate winding of cords therearound, and then snap back to hold cords in place. The enclosure box has a movable door on its front face. The movable door is attached to a frame on the front of the box. The frame may be flush with the face of any wall into which the enclosure box is mounted. The movable door has an opening along one side thereof, through which any electrical cord may pass when the door is closed. The movable door may also be removable from the enclosure box and relockable thereon. The enclosure box permits receptacles and the plugs and cords thereattached, to be disposed out of the way of furniture, appliances and curious children.

Abstract: A non-metallic outlet box assembly attached to an associated wall stud includes a pair of substantially identical, generally rectangular outlet boxes and a mounting bracket molded from resilient, high-impact, plastic material. Each outlet box is open at its front end and has top, bottom and side walls, at least portions of which converge toward one end of the box. The boxes are connected to each other and to the mounting member, by substantially parallel coengaging rails and channel members. The two outlet boxes are connected in snap-together assembly with each other and are incrementally adjustable in unison relative to the mounting member and a wall stud to which the mounting member is attached. Clamping members associated with cable receiving openings in each outlet box are adjustable to clamping positions wherein associated cables are clamped to the box to resist separation therefrom and to closed positions wherein each clamping member forms a substantial closure for an associated cable receiving opening.

Abstract: A surface mount package for toroids or the like inductive elements has the element sandwiched between two non-conductive plates. Spring clips hold the sandwich together, and the element leads are connected to the clips. The assembly is potted, leaving only one end of the clips exposed for surface mounting on a circuit board.

Abstract: An electrical cable gland is provided which can be effectively clamped to metal strip types of armouring of an armoured electrical cable to effectively resist tension applied to such cable. The electrical cable gland includes at least two, and preferably three gripping dogs movable inwardly towards each other to effectively grip such metal strip armouring preferably between the dogs and on inner supporting sleeve forming part of the gland. Movement of the dogs can be by co-operating tapered surfaces on the dogs and body of the gland with the surfaces being axially movable relative to each other or by radially extending screw threaded fasteners passing through the wall of the body. An inwardly deformable, electrically conductive contact ring can be included, where required for making electrical contact with a lead or other conductive sheath.

Abstract: A non-metallic integral housing includes a plurality of fiber covered foam panels joined together. An electro-magnetic shield is disposed on one surface and around the edges of the panels. The shield includes a pair of metallic foils having openings therein separated by a fibrous non-conducting material. Layers of additional fibrous material are disposed on opposite surfaces of the foils. The metallic foils with the fibrous material are disposed on the outer surfaces and around the edges of the panels where they are metallurgically joined. Resin is impregnated into the fibrous material to encapsulate the metal foils to produce an integral isolated housing with the shield within the walls of the housing.

Abstract: The subject matter of the invention is formed by a cable distribution head with LSA-PLUS termination technique for terminating incoming and outgoing communications cables. LSA-PLUS termination technique means "solderless, non-screwed and non-stripped termination with polytropic air gap".

Abstract: A safety cover for electrical outlet assemblies characterized by a five-sided enclosure adapted to attach over the cover plate of the outlet assembly, and a pair of braces attached within the enclosure to provide support for electric plugs engaged with the sockets of the outlet assembly. The braces and enclosure are provided with slots to permit the passage of the power cords attached to the electric plugs. Each brace is provided with a pair of brackets which help support vertical loads placed upon the braces. Removable platform members are provided to elevate the electric plugs so that they may engage three-prong sockets as well as the more common two-prong sockets.