Abstract: A biomedical percutaneous connector for providing electrical connection between electrical conductors carried externally of a patient's body and electrical conductors implanted within the body of the patient. The connector includes a socket having an enlarged disk shaped base portion for being implanted below the patient's skin. A cylindrical portion is integral with the base portion and extends outwardly of the skin. A conical recess is provided in an upper end of the cylindrical portion and has a magnet located in the base thereof. Inclined conductive strips are carried on an upper end of the cylindrical portion adjacent the conical recess to which electrical conductors are attached and extend into the patient's body. A complementary shaped plug which also has electrical contacts provided thereon is adapted to fit within the conical recess of the socket. Guide grooves and protrusions are provided on the socket and plug for aiding in positioning the plug relative to the socket.

Abstract: An improved high-capacity solderless bonding assembly for shielded cables having a current carrying capacity in the order of 1,000 amperes for in excess of 15 seconds. The assembly includes a U-shaped metal strap of good conductivity material having one leg insertable beneath a cable shield together with strong ferrous metal fastener means extending through aligned openings of the strap legs as well as the cable sheath and shield, and effective to clamp one strap leg against the shield and the other leg to the outer end of the fastener means thereby utilizing the strap and the fastener to share the electrical load. The fastener means extend through aligned openings in the legs of the U-shaped strap and through the cable sheath and shield.

Abstract: A low profile electrical plug to permit objects to be moved close to the plug when mounted to a wall socket. The electrical cord connection to the low profile plug may be rotated to any point along a 360.degree. path.

Abstract: A back-up grounding system for electrical appliances is used in hazardous locations. The redundant grounding line cord has two green grounding conductors instead of the usual one. A plurality of redundant grounding plugs and receptacles are provided to provide electrical appliances with two complete and separate grounding circuits.

Abstract: Rotary electrical coaxial connector for high frequency transmission between a fixed and a rotating coaxial conductor. The fixed conductor comprises a first cylindrical section, a second cylindrical section of lesser diameter following the first section, conducting casings, and insulating layers. The rotary conductor is seated in a cylindrical section, external and internal shells, an insulating layer and a conducting layer.

Abstract: A ground wire connector for grounding a conductor on a reel during stringing operations which includes structure for coupling the connector to a reel rotatably mounted on a shaft. A bearing is provided with one portion connectable to the reel so as to rotate therewith and a second portion connectable to the shaft with the one portion rotatable with respect to the second portion. The second portion is coupled with a grounded conductor and the connector provides an electrical path from the reel to the grounded conductor when connected thereto while permitting relative rotation between the reel and grounded conductor.

Abstract: An electrical connector comprises a body defining a chamber. Electrical elements are carried by an insulating part located in said chamber. The body has an integral molded construction of resilient material and includes a generally tubular portion. An opening is provided in the end wall for an electrical cable to extend therethrough into the chamber for connection with the electrical elements. A clamp means is provided for clamping the electrical cable prior to its entry into the chamber. The clamp means comprises a clamp part and means for securing the clamp part to the insulating part. Threaded fasteners are provided which extend into threaded engagement with the clamp part. The electrical connector has means for preventing an axial compressive clamping of the body between the insulating part and the clamp part.

Abstract: This relates to an electrical connecting device or plug, preferably of the U-grounded type, which when plugged into a standard split wire duplex receptacle will double the voltage potential available at the receptacle. A modified form of the invention comprises an electrical connecting device or plug which when plugged into a standard split wire duplex receptacle will provide an option of either doubling the voltage potential available at the receptacle or, alternatively, operating as a single plug for a pair of appliances, each at normal household voltage.

Abstract: To provide for reliable connection under conditions of extremes of shock and vibration, an axially acting contact spring is located between the movable electrode, typically connected to the wire, and the fixed electrode, then forming the connection in the distributor cap, the spring forming a current carrying contact element while exerting axially directed bias force; releasable holding means releasably, positively connect the cable and the socket of the distributor cap so that the spring can act as a resilient contact element. These releasable means may be either magnetic force means, a bayonet connection, a snap catch, or a collar fixed to the wire which is secured by a holder to the cap, the spring, in all instances, being interposed between the central connecting wire of the cable and the fixed terminal within the distributor cap.

Abstract: A carrier for making electrical connection with a microelectronic device without bonding the device to the carrier is disclosed. The carrier is designed to accommodate a device such as, but not limited to, a magnetic bubble domain memory chip. The circuit board and keeper board are joined by a hinge having tension means to readily permit opening and locking of the carrier. When the carrier is in the open position, a device is positioned in the carrier. By locking the carrier, the device is secured and the required electrical connection is made between the carrier and the device. The carrier can now be connected to a test fixture for evaluating the electrical characteristics of the chip without bonding any leads or the carrier may be utilized in a system as an integral part of that system.

Abstract: A vacuum cleaner hose end structure having a molded end portion secured to a flexible hose portion and a hose end adaptor telescopically received in the molded end portion to define a desired hose end configuration. The hose end adaptor may comprise any one of a plurality of different configuration adaptors. The hose end adaptor further is arranged to retain an electrical connector in association with electrical terminals carried by the molded end portion of the flexible hose to provide a desired electrical terminal configuration which may be selectively male or female. The vacuum cleaner hose may be provided with such selectively arranged hose end structures at each of its opposite ends.

Abstract: An advance grounding system for electrical connectors includes a male attachment portion and a female receptacle portion. The male attachment portion contains a pair of current carrying electrical contact blades and a ground contact blade extending outwardly, with the ground blade having a length greater than the current carrying contacts. The female receptacle includes a pair of electrical terminals positioned in recesses and adapted to receive the current carrying contacts, and a ground terminal which extends to a point adjacent the inner face of the female receptacle. The ground terminal is arranged so that it is not possible for the current carrying blades to contact the female terminals before the ground blade contacts the female ground terminal when the male attachment portion is inserted into the female receptacle portion to complete the electrical connection.

Abstract: Connector device for connecting the lamp circuit of a trailer vehicle with the lamp circuit of a tractor vehicle comprising a circular base member having a hub, circular walls, and different diameter non-conducting plastic rings rotatably disposed one within the other on the base member. Each ring has a recessed metal strip along its underside, a convex dimple, and a positioning hole in its upper surface. Contact riders radially disposed on the base member establish electrical contact with the metal strips of each ring and are connected with conductors which are attachable to the lamp circuit of one of the vehicles. Contactor plates radially disposed on the base member have concave dimples adapted for receiving the convex dimples of the rings. A second set of electrical conductors are connected to the contactor plates and run to the lamp circuit of the other vehicle.

Abstract: An identification member for attachment to an uninsulated electrical terminal comprising a metal sleeve and a clamping screw consists of two plates of insulating material secured face to face by mating projections and recesses in the plates, each plate having a pair of legs with detent teeth for engaging the ends of the sleeves, and a recess to receive an identifying plate or tag, the mating faces of the plates containing matching recesses forming a bore for the screw.

Abstract: A portable electrical device has a molded body having a cavity closed by a rear wall. Two conductive prongs project through the rear wall for reception into a phase port and a neutral port, respectively, of an electrical outlet. A retractable grounding pin or prong, when in an extended position, extends outwardly from the rear wall in parallel spaced relationship with the two prongs and is receivable by a ground port of the outlet if there is one. When the device is used with an electrical outlet not having a ground port, the grounding pin retracts within the cavity against a spring bias. An indicating pin is operatively connected to the grounding pin and moves, in response to retracting movement of the grounding pin, to an exposed position within a recess in a front wall of the body to provide a visual indication that the device is not grounded by the grounding pin.

Abstract: Apparatus defining an electrical connection capable of carrying relatively high electrical currents including a number of heavy-duty electrical conductors normally spaced apart and electrically interconnected by an improved connector unit having a plurality of spaced, stacked plates having louvered electrical connector devices. Each plate has a pair of opposed faces with each face having one or more grooves therein. Each groove is provided with one of the louvered electrical connector devices. Each such device has a plurality of spaced, electrically conducting, resiliently mounted fins whose curved outer edges are adapted to engage the corresponding plate and to make electrical contact with the adjacent electrical conductor. A number of embodiments of the apparatus are disclosed.

Abstract: A diagnostic apparatus, especially for measuring the ignition voltage development in motor vehicles, which is equipped with two measurement value pick-up devices whereby each pick-up device is constructed as adaptor plug while the two pick-up devices are movable relative to one another by means of a connecting member.

Abstract: A current-carrying vacuum cleaner hose having improved replaceable electrical terminals. The terminals are carried on a mounting member to define a terminal adaptor which is engageable with terminals carried by the hose end. The terminal adaptor is arranged to permit an electrical connector to be removably connected to the terminals thereof and in the illustrated embodiment, defines an electrical receptacle. The terminal adaptor may be retained in association with the hose end by a snap-in hose end adaptor or may be secured to the hose end by securing means associated with the hose end.

Abstract: An electrical two-way transmission system and method of constructing an electrical coaxial conductor assembly for a tubular fluid conductor composed of lengths of electrically conductive pipe having their ends connected in spaced relationship by external couplers, such as a well drill string having screwthreaded coupling collars connecting the ends of adjacent lengths of drill pipe, wherein said pipe and couplers provides an outer electrical conductor.

Abstract: A technique is described for completely and positively wiring components into mass produced machines, such as washing machines, dryers and the like. The subject technique encompasses improved contacts, connectors and a wiring harness all of which are individually and collectively adopted to provide a readily ascertainable positive visual indication of a full mating condition and which will prevent further assembly of components if not initially fully assembled in the proper relationship. Each subassembly of a connector and related component includes keying means allowing only correct assembly and mounting in the machine plus visual indicators which verify correct assembly at each step. The connectors preferably have housings which can be produced in great lengths and cut to the desired shorter lengths. These housings also include strain relief means for the associated conductors and may be hermaphroditic.