Abstract: An electrical receptacle protective device includes a base plate which replaces the conventional face plate of an electrical outlet, and a cover which is attached to the base plate. The cover is secured to the base plate by three latches. In order to remove the cover from the base plate and access the outlet, all three latches must be released simultaneously. These latches are spaced in a manner such that two adult sized hands are required to release all three simultaneously. The spacing of the latches, combined with the requirement for their simultaneous actuation, inhibits the removal of the cover by a small child who does not have sufficient dexterity to carry out these operations.

Abstract: A four quadrant leadframe, base and window assembly and assembly method therefor are disclosed which are suited for fabrication of leaded integrated circuit (IC) chip carriers having electrical contacts on all four sides of the package, lead spacing as small as 0.020 inch, and lead counts exceeding 164 total leads.

Abstract: A high frequency RFI/EMI shielding strip is disclosed which comprises a strip of two-layer circular knit metal mesh material, which is folded around the exterior of a resilient core element. Projecting edge margins of the conductive mesh material are gripped and clamped by a continuously extending flange structure, forming an integral part of a continuous clip element. The structure eliminates the necessity for knitting the conductive mesh material in-situ about the resilient core. Exceptional cost savings result, without compromise in shielding performance.

Abstract: A mounting substrate (10) is formed from a platelet of graphite (22) conformally coated with a layer of silicon carbide (24). A layer of silicon dioxide (25) is disposed thereon and a chip (16) mounted onto the substrate (10). The silicon carbide has a thermal expansion coefficient that is essentially equal to silicon in addition to a high thermal conductivity.

Abstract: A flat package for electric microcircuits has an iron-nickel-cobalt alloy frame which is brazed to a molybdenum bottom at a temperature below about 400.degree. C. The molybdenum bottom has successive layers of copper, nickel and gold plating.

Abstract: For application to different standard dimensions of wires, cables or tubes an electrical connecting box is designed with a lower part (1) with a bottom (2) and upright side walls (6) therefrom, and an upper part (8) in the form of a cover having side walls for arrangement against a circumferential shoulder portion (11) on the side walls of the lower part (1). In the side walls (6) of the lower part one or more sets (16) of parallel punch lines (17-20) are formed extending from the bottom onto the shoulder portion (11) of the side wall. In the adjoining side wall the upper part (8) is formed with punch lines (21-23) shaped substantially as circular arcs so that in the assembled condition of the box blank portions of different sizes may be punched out to be adapted to individual wire, cable or tube dimensions.

Abstract: A modified TO-8 package has a kovar header supporting an FET amplifier hermetically sealed by a cover welded along the seam between the cover edge and header edge. The header is formed with three circular openings in space quadrature about the package axis. A circular copper spacer contacts the header and is formed with channels extending radially outward from the header openings to define with the openings three lead channels. A lead having a right angle bend is seated in each channel having an upstanding pin portion above the header. The volume between the lead and the header is filled with hermetically sealing low expansion borosilicate glass. The remainder of each channel is filled or coated with nonconductive epoxy. The depending portions of the leads are flush with the bottom of the copper spacer.

Abstract: A base member of an enclosure supports an upright frame having a box-like door hinged at its upper portion to the frame. The door when swung outwardly to an open position provides access to the interior of the enclosure and also provides a cover for equipment in the enclosure from weather elements. The upright frame may support double doors for providing an enclosure for different portions of communications equipment, the double doors also providing selected locked access to authorized personnel. The base member is constructed of two separable parts in an arrangement such that these parts can be replaced by larger parts when the capacity of the communications equipment is to be expanded. The enclosure is preferably constructed of a rust and corrosion proof plastic material and one that requires little or no maintenance.

Abstract: High-frequency seal for casing coverings, for instance, electromagnetic interference suppressors, and for doors of chambers that are to be shielded from high frequencies, with an interference-suppressing sealing cord which contains at least two partially rolled up metallic meshes (10 and 15) in the form of strips, which are in contact with the surfaces to be sealed, the unrolled parts of which (12 and 18) lie one above the other and the rolled up parts of which (11 and 17) lie next to one another.

Abstract: A wall-mounted electrical utility module is disclosed which provides an open, rectangular frame mounted in an opening in one side of a wall. The adjacent, opposite panel closes the rearward side of the frame and cooperates therewith to provide a module chamber. Flange means are provided on the frame which include adjustable plates. The side plates abut with adjacent panels and the upper and lower plates overlap the wall panels above and below the opening. The plates are secured to the wall studs to provide a firm mounting for the module. A removable cover provides access to the module interior. The cover provides sound insulation and a resilient seal. The cover is spaced from the wall so that cords can pass under the edge of the cover and be plugged into receptacles provided within the module.

Abstract: A four-leaded dual in-line package is disclosed in which a rectangular insulation housing carries a semiconductor device therein which is connected to flat lead frame elements which extend out through the opposite sides of the insulation housing and define two pairs of in-line leads on opposite respective sides of the insulation housing. Two leads on one side of the package are insulated from one another and the two leads on the other side of the package are joined together. The two leads which are joined together extend from a flat heat sink frame section which carries a semiconductor chip in good heat-conduction relationship. The device within the package is disclosed as a three-electrode MOS transistor. Other devices can be contained within the housing. The insulation housing surrounding the in-line leads extends beyond the centers of the leads by a distance equal to one-half of the center-to-center spacing between leads.

Abstract: An RF shield of electronic devices for example, a covering for electrical equipment which includes frame and panel structures having planar parts characterized by a spring element being assembled on the planar part to insure contact between the part and another part. The spring element has a pair of end portions connected by a center portion which has a convex configuration and the end portions have hook-like portions for securing the spring to the planar part by being inserted in a pair of spaced apertures or for engaging an edge of the part and an edge of an aperture. The hook end portion can extend in the same direction and one portion can include a 180.degree. bend to lock the spring on the part. The convex center portion can be a smooth convex curve or it can be a sharp triangular-shaped bend.

Abstract: A cover assembly for an electrical outlet includes a mounting member which can be attached to an electrical device and a cover plate. The mounting member has extensions projecting from its front surface adjacent its periphery, which extensions are unitary portions of the mounting member. The cover plate has projections extending from its rear surface adjacent its periphery. The extensions and projections mate to releasably couple the mounting member to the cover plate. Tabs and notches can be provided on the sides of the mounting member to facilitate alignment of a plurality of ganged electrical devices covered by a single cover plate.

Abstract: An IC package with an improved seal includes a sealant penetrator in the form of a projection on each lead for penetrating the provided seal. In a preferred embodiment the penetrator is a semi-circular projection formed on the lead which penetrates the sealant material.

Abstract: An electric washing machine is provided with a housing with a plurality of lead wires connected to electrical equipment. A panel of the housing is formed of synthetic resin and a plurality of retaining portions are integrally formed with the panel and formed of synthetic resin. The retaining portions are arranged at intervals at the panel so as to hold the lead wires therein.

Abstract: A cable gland having two parts interconnected by a screw thread through which moisture may conceivably enter is provided. The screw threaded connection is between two parts of the cable gland and a skirt is sealed to the one part on one side of the outer end of the screw threads and sealingly engages a circular sealing surface on the cable gland part on the other side of the outer end of the screw threads. The skirt may be flexible and resilient itself or may be rigid with a sealing ring co-operating between it and the circular surface.

Abstract: A casing for electrical components, component assemblies or integrated circuits, and particularly for electrical surface-wave filters, is disclosed as well as a method of production therefor where the electrically active element rests on a base strip from which project outgoing connectors through the casing walls. The connectors provide mechanical and electrical connection to printed circuit boards. A thermosetting-plastic trough adheres closely to the underside of the base strip, while the side-wall reels of the trough rest on the borders of the upper surface of the base strip. Over the trough is placed a thermosetting-plastic lid so that the active element is contained in an enclosure. The trough-and-lid assembly is then coatable in thermosetting plastic.

Abstract: A semiconductor housing particularly useful for very high current devices, e.g. transistors and G.T.O. thyristors, in which a control lead to the base or gate of the device, which also has to carry a relatively high current, passes through an insulating wall of the housing. This control lead is enclosed within a tube which passes through an insulating wall of the housing and which is hermetically sealed to it, the tube is also hermetically sealed to the conductor at either end. The coefficient of expansion of the tube is chosen so as to be substantially the same as the coefficient of expansion of the material of the insulating wall, which may be made of ceramic material or the like. The arrangement avoids corrosion effects as a result of the entrapment of plating salts etc. which are known to adversely affect the assembly and especially the electrical performance of the control lead connection.

Abstract: In a miniaturized electronic component device, a component body including at least one coil is entirely embedded in a protecting elastic body, with leads of the component body being led out through the protecting elastic body; the latter is coupled to a base plate; external terminals are attached to the side portions of the base plate and electrically connected to the leads of the component body; and encapsulation is provided surrounding the base plate and protecting elastic body, with the free end portion of each of the external terminals being exposed through the encapsulation.

Abstract: A container for an electrical outlet box is designed for use in combination with a vapor barrier of flexible material. The container is a unitary molded container with a front opening and a ring member is designed to slide over the container adjacent the front opening and to clamp the flexible barrier material between the ring and the container.