Abstract: A printed wiring board structure includes a printed wiring board and an electromagnetic shielding member. The printed wiring board has a part-mounted surface formed on one surface thereof, a ground surface formed on a reverse surface side to the part-mounted surface, and an exploded shape including at least a portion constituted by a flexible printed wiring board, and bottom and upper surface portions which are divided from each other by the flexible printed wiring board. The printed wiring board is folded at a portion constituted by the flexible printed wiring board to cause the part-mounted surface to face inside and to make the bottom surface portion parallel to the upper surface portion, thereby constituting a stereoscopic structure having two wiring layers. The electromagnetic shielding member is parallelly arranged between opposing part-mounted surfaces of the bottom and upper surface portions of the printed wiring board in which the stereoscopic structure is constituted.

Abstract: A connector for electrically and mechanically interconnecting multiple pairs of small coaxial conductor pairs includes a shield bus layer and signal conductor traces on opposite sides of a flexible dielectric substrate. Terminal portions of the signal conductor traces span an opening through the connector giving access to each signal conductor trace for soldering the traces to arrayed terminals on a circuit assembly, and are located accurately, so that mass soldering techniques can be utilized, with the connector located with respect to the circuit assembly by registration pins and holes. Portions of the shield bus are exposed to be soldered to a respective terminal on a circuit assembly, and to allow the shield conductors of the coaxial pairs to be soldered to the shield bus layer. Thermal breaks are defined in the shield bus layer to protect soldered junctions between the signal conductor traces and the signal conductors of coaxial pairs and the terminals of the circuit assembly.

Abstract: An interface printed circuit board is configured to be placed between a leadless component such as a surface mount package used to house a SAW device and a standard printed circuit board configured for solder joints in a leadless contact with the printed circuit board. The interface device is made using materials having similar characteristic thermal expansion properties as that of the printed circuit to with it is affixed. Solder pads are placed in offset pairs and interface board material is removed such that the combination causes the interface board to flex from the forces caused by the differing expansion coefficients of the solder, the package and the printed circuit boards. The configuration causes the relative movement between the leadless carrier and the printed circuit board to occur along a length of epoxy and glass board material by bending the epoxy and glass as opposed to applying tensional or compressive forces to the solder joints.

Abstract: A cable harness assembly is provided, which has a low profile, is shielded, and can be constructed at low cost. The assembly is of the type that includes a board (12, FIG. 2) coupled to a connector frame (14) that holds multiple contacts (52) and coupled to a cable (16), wherein insulated wires (24) of the cable run along the board and have bared front ends (50) connected at joints (74) to tails at the rear of the contacts. An underlayer (72) of electrically insulative material lies over the wire-to-tail joints and any other exposed areas of the wires and tails lying on the board, the underlayer having undulations (78, FIG. 3) that follow the contours under it. An overlayer (80, FIG. 2) of electrically conductive plastic material lies over the underlayer and the rest of the board, wires, and cable front portion.

Abstract: Devices for use with high voltage system components for the safe expulsion of conductive moisture within such components include elbow and T-shaped connector bodies composed of insulating elastomeric bodies covered with conductive elastomer layers. The horizontal legs include all components normally found in such components. The bore of the vertical leg provides a circuitous passage from the horizontal leg to a container or the soil for the collection of such moisture. The circuitous path prevents the moisture from leaving as a stream and the grounded metal cap at the vertical leg extremity discharges any charge carried by the moisture. The circuitous path can be provided by modules each having a curved, linear or combined path such that the total path is longer than the length of the vertical leg. A vacuum access port can provide a means to draw out the moisture if gravity is insufficient to withdraw the moisture from the high voltage system components.

Abstract: A media injection fitting for the insertion or removal of a media from the interior of a high voltage separable connector component having an access to the interior of the component. The fitting is comprised of a central body portion having a passage from an exterior side surface to the bore of a pin extending beyond the fitting for insertion into the bore of the access. A skirt extends from one end of the body portion so proportioned and configured as to be positionable upon the outer surface of the component access with a locking means on the interior surface of the skirt to fix the fitting upon the access. A pulling eye extends from the second end of the body portion to permit installation and removal of the fitting from the surface of the access. A coupling on the exterior side surface connected to the passage permits the insertion or removal of a media from the component or the venting of gases contained therein.

Abstract: A cable assembly 100 capable of electromagnetic interference suppression a cable strain includes relief 106, a tubular electromagnetic interference suppressor 110 located within the strain relief 106, both of which are disposed around electrical cable 102. The electromagnetic interference suppressor 110 attenuates any electromagnetic interference ("EMI") which might get coupled to electrical cable 102. By attenuating the EMI coupled to electrical cable 102 the problems associated with the electromagnetic interference can be minimized.

Abstract: The invention is the provision of an access to the interior of a high voltage separable connector component by providing a projection of insulating elastomeric material integral with the insulating material of the body of the component and in engagement with the conductive elastomeric material shield of such component. A bore extends through the projection from a free, remote face to the component interior. The bore can be straight walled and if desired can be fitted at its remote end with appropriate fittings to permit external devices or internals to interact with the elements within said component body.

Abstract: The shield connector is constructed with an electrically conductive stopper formed by an integrally insulated coating and a shield coating at the end portion of a shield wire. On the outer surface of the stopper an annular groove is bored. An inserting hold bored on the bottom of a shield case is assembled by coupling two shield case pieces and includes a bottom wall with a hole therein which engages the groove.

Abstract: The invention is directed to a connector for two flat electrical cables having the same plurality of conduits. The electricity passes from one conduit to the corresponding conduit by way of a dielectric insert having holes therethrough, with electrically conductive means having at least a portion of a hemispherical surface protruding on each side of the dielectric insert. Preferably pressure is applied to the cable/insert/cable sandwich quasi-hydrostatically through a low durometer elastomeric materic material. For EMI/EMP shielding, the low durometer elastomeric material is electrically conductive and encloses completely the connection.

Abstract: Two conductive mating halves of a connector hood include facing inserts of resilient conductive materials. A cable, having shielding conductive braid or foil exposed on a surface thereof is contacted in passing between the inserts. A low-resistance electrical path is provided between the shielding and the conductive connector hood by a resilient conductive material for resisting escape of radio-frequency interference from the connector hood. In one embodiment of the invention, a foam material with parallel embedded metallic wires is employed for the resilient conductive material. The wires are preferably oriented for conduction between the connector hood and the shield braid or foil on the cable with substantially no conductive paths parallel to the axis of the cable. Facing, metallic spring-type strain-relief devices in the connector hood provide strain relief as well as enhance the resistance to radiation of radio-frequency interference.

Abstract: A corrosion resistant resilient electrically conductive gasket is comprised of a metal-containing conductive elastomer which has had any exposed metal coated with a protective conductive coating. The metal may be silver and the coating may be tin-lead solder applied by immersing the gasket into a molten solder bath.