Abstract: An electrical connector of the type known in the television industry as A.C. interlock plug, comprises a dielectric body having opposite faces and an opening extending therethrough and through both of the opposite faces. A contact member having a pin body and a solder lug extending from one end of the body, has the solder lug projecting through the opening, a shoulder on the pin body engaging the dielectric body as a stop and spur means on the solder lug retainingly engaging with the dielectric body to prevent withdrawal of the contact member.The contact member may be formed up from sheet metal into a tubular pin body and a transversely arcuately reinforced solder lug on which the spur means comprise one or more shear formed pointed projections along the edges of the solder lug.

Abstract: A novel high frequency electrical probe comprising:A blade-like active body member adapted to be supported at one end with its major plane at substantially 90.degree. to a circuit to which contact is to be made;The other end of said body member formed to have a generally pointed edge to serve as a contact point to be abutted against the circuit;On both sides of said active body member, elements which are approximately coextensive with said body member, but having either no contact points, or pointed edges which abut said circuit at points slightly displaced from the contact point of said active body member.

Abstract: An electrical socket and associated circuitry is provided wherein current can flow to the socket only when a load device is in the socket and a normally open, momentary "make" switch is closed. The circuitry includes a relay for actuating a switch in parallel with the momentary make switch, which relay is energized upon closure of the momentary make switch and remains energized so that current will continue to flow to the socket until a normally closed, momentary "break" switch is opened. Current cannot flow through the socket with the load device removed even if one should touch the socket except in the unlikely event the make switch is closed.Several embodiments are disclosed wherein no current can flow through the socket unless at least three socket parts are engaged. In one form of socket, the socket base contact is divided into two parts, both of which must be engaged in order for the relay to remain energized.

Abstract: An improved lamp, holder and adapter are provided, the lamp including an elongated body and lamp bases at each end of the body, and the holder for the lamp comprising a frame and a pair of end sockets adapted to receive the lamp bases. Each lamp base includes a plug carrying a pair of spaced electrical conductors for detachable connection to corresponding conductors within the end sockets, the latter being connected to a suitable source of electric current. At least one of the sockets includes an irregularly shaped socket recess, and at least one of the lamp plugs has a groove therein. An adapter element is provided interposed between the grooved lamp plug and the socket having the irregularly shaped recess, with the adapter carrying a tongue on one side sized and shaped to lockingly nest within the plug groove and having its opposite side shaped complementary to the socket recess for locking mating engagement therewith. Several lamp plug groove shapes and arrangements are described.

Abstract: Electrical commoning means for connecting a plurality of wires to each other at an electrical junction comprises an insulating housing having a terminal-receiving face and having a plurality of side-by-side terminal-receiving cells extending inwardly from the terminal-receiving face. Adjacent cells are separated from each other by a barrier wall having a centrally located opening which permits communication between adjacent cells. The wires which are to be commonly connected have contact terminals on their ends which are dimensioned to be snugly received in the cells. Each terminal has a contact spring extending from one side thereof and a contact surface on the oppositely facing side. The springs are dimensioned such that they will fit in the openings in the barrier walls and in their normal unstressed condition, each spring extends through the adjacent barrier wall and into the next adjacent cell.

Abstract: A connector for terminating the wires of a flat cable directly into slots in plate-like terminal portions of contacts which are contained in said connector and without the use of solder. Two or more rows of the slotted terminals are arranged on a flat bed surface of the connector housing with the said slotted terminals extending vertically upwardly from said bed surface and further with the slotted terminals in a first row being interleaved with the slotted terminals in the second row. In addition to the slotted plate-like terminals, each contact comprises a second terminal means, such as a female receptacle, for receiving a terminal post from an external source. The contacts are designed in two different configurations which enables the receptacle portion of a contact of a first configuration to be positioned directly over the receptacle portion of a contact of the second configuration, while permitting the slotted plate-like terminals to be interleaved on the bed surface of the connector housing.

Abstract: An electrical connector assembly adapted for longitudinal telescoping engagement includes first and second identical insulating connecting housing portions containing rigid contact terminal members. The insulated connecting housings surrounding and enclosing the terminal members are composed of a polycarbonate resin material and are adapted to receive and fixedly hold a U-shaped spring member which engages the end of the terminal member to bias and hold the same in rigid contacting position. The housing includes also a removable insulating wall member which is engageable with the terminal members when the terminal members have been fully inserted into the connecting housing to assist in retaining the terminal members in rigid contact position. The wall member is a thermoset high heat resistance glass filled nylon material which prevents disintegration of the connecting housings upon extended use of the electrical connector assembly.

Abstract: An electric fuse holder of the modular kind, i.e. formed by combining a plurality of identical fuse holder units. The fuse holder units are shaped in such a way that they can be joined together under pressure of wedge action merely by virtue of their geometry or configuration into a composite or multipolar fuse holder, i.e. in the absence of any additional fastener means.

Abstract: A shield for avoiding the accumulation of contaminants and dust on stabs of loadcenter bus bars during handling and shipping characterized by a molded sheet-like member having spaced blisters extending from one side of the member, and the blisters being comprised of a semi-rigid material adapted to cover the bus bar and stabs detachably clampingly engaged in place.

Abstract: The present invention is directed to a light track device of the type which mechanically and electrically supports fixtures such as spotlights or the like at any selected position along the length thereof, the device being characterized by an improved attachment module facilitating the formation of electrical connections between the conduits in the light track and the mains conduits. The module incorporates clamps or connector fixtures within which the mains conduits may be placed, secure mechanical and electrical interlock between the mains conduits and the fixtures being effected by the exertion of a lateral force against the mains conduits.

Abstract: A consistently low resistance ohmic contact is made to an aluminum-containing compound semiconductor by a multilayer deposition and heat treatment process. The process includes the deposition of a transition layer on the semiconductor surface to be contacted and an overlying gold layer to provide external contact. The transition layer consists of aluminum and a shallow dopant element which may be deposited as successive layers or together. After the transition layer and the gold overlay are deposited, the composite is raised to a temperature at which the transition layer is liquid. In cases in which the gold-dopant binary system has a polyphase region, it is preferable to select the thickness of the gold layer such that the gold-dopant alloy is in the solid solution region of the phase diagram of that binary system, to prevent enhanced diffusion to the upper gold surface along grain boundaries. In an exemplary realization, an Al-Sn layer was used to contact n-type GaAlAs.

Abstract: An electrical connector comprising a male plug is assembled in a housing which is permanently secured to a wall outlet, the male plug being movable forwardly in the housing into engagement with the terminals of the wall outlet, the housing having a key-operated lock arranged to lock the male plug in its forward position in the housing.

Abstract: A sealing ring in a lamp socket face, particularly a fluorescent lampholder. A resilient ring is pressed into an undercut groove molded into the socket face, with an interference fit, the front of the ring protruding from the socket to seal against the lamp end.

Abstract: There is disclosed an electrical contact which comprises a substantially rigid electrically conductive body and a substantially flexible contacting portion electrically connected thereto. The contacting portion includes a first segment of insulative material and a second segment of conductive material secured to a selected area on the first segment. The contact is ideally suited for use within a zero force printed circuit board connector, said connector also disclosed.

Abstract: The invention relates to a charge transfer device (C.T.D.) with polycrystalline silicon electrodes which are provided on a nitride layer. The nitride layer has apertures between the polyelectrodes. Electrodes of a second metallization layer, for example, of aluminium, are provided via said apertures. The charge storage capacities per surface unit (and with equal voltages) can be made equal by subjecting the device for a short period of time to an oxidation treatment prior to providing the Al electrodes so that the oxide layer in the apertures can become thicker than below the Si electrodes.

Abstract: Contact device for achieving an electric conducting connection between a metallic plate and another metallic object, for instance between a plug-in unit and a rack, where a connection plate fastened to the metallic plate has on one side edges known per se and is so bent that the edges, when the contact device is inactive, are withdrawn inside the surface of the metallic plate facing the metallic object, and that the edges, owing to pressure from a fastening element inserted through the contact device, can be brought to protrude from the surface of the metallic plate.

Abstract: Improved devices for making electrical terminal and wire-to-wire connections; in terminal type connections, improved devices for physically and electrically joining one or more electricity-conducting wires to novel terminal constructions; in wire-to-wire connections, novel improved devices for electrically and physically connecting together two or more electricity-conducting wires; wire receiving sleeve members adapted to cooperate with novel electrical terminals or other, like sleeve members and a terminal interconnection therebetween, for purposes of new advantageous physical and electrical connections of wires or wires and terminal members; means for removably locking together the connected parts of such electrical terminal and wire to wire connections.

Abstract: A terminal block includes a printed circuit element which has conductive paths deposited on one of its surfaces, with each path extending from a terminal area surrounding an opening in the element to a centralized area. In one embodiment, the printed circuit element is a rigid board and terminals are mounted on the board and extend through each opening and project outwardly on the opposite surface of the board. The terminals are swedged at one end to physically retain them on the board and to electrically connect them to the conductive path. The rigid board is attached to an open box-like shell through which a cable carrying wire conductor extends and connects, interior to the block, to the conductive paths on the circuit board. In another embodiment, the circuit element is a flat, flexible sheet which is disposed against a support board provided with apertures aligned with the openings in the flexible sheet.

Abstract: In an electrical control panel, one relay can be stacked on the other as follows: Without removing an installed relay, the screws holding the octal base of the relay are replaced by adaptors which extend up from the base beyond the relay housing. Another octal base is mounted on the ends of the adaptors by screws threaded into the same from the second base. Another relay is then plugged into the second base. The two relays now are in stacked position. The adaptors have a yielding connection which allows the new relay and base to be moved to provide a clearance space for access to the first relay and then returned.

Abstract: The apparatus includes a housing having electrical bus conductors therein and a plug-in module for providing an electrical connection between selected ones of the bus conductors and a circuit board having electrical contacts thereon. The module has an opening therein to receive the circuit board and the module is detachably secured to the housing. The module has leaf-type conductors therein forming the connection between the selected bus conductors and the electrical contacts on the circuit board inserted therein. A camming lever is included in the module to expand the leaf-type conductors to permit removal of the circuit board and side insertion of the circuit board, which camming lever also locks the circuit board to the module to prevent its removal except when the leaf-type conductors are expanded.