Abstract: An outlet unit for installation in a power distribution system for modular wall panel units carrying four separate pairs of line and neutral conductors. The outlet unit includes a pair of line and neutral contacts, configured to receive two separate plugs for power cords, the line and neutral contacts of the unit being connected to respective first and second contacts that project through the rear face of the outlet unit. The four pairs of line and neutral conductors of the distribution system are contained in an insulating power block housing having openings aligned with each of the conductors therein to provide access to the conductors by the first and second contacts of the outlet unit. The openings of the housing of the distribution system are arranged in two symmetrical groups. The outlet unit has four insulating silos positioned on its rear face so as to enter openings of either the first group or the second group, depending on the orientation of the outlet unit when plugged into the outlet unit.

Abstract: A device for eliminating Absolute Polarity inversion in a high-fidelity sound reproduction system, wherein the sound reproduction system includes a component for extracting, from a storage medium, an electrical signal coding audio frequencies, the sound reproduction system further including a component for amplifying the electrical signal. The device comprises a housing, an input terminal, a first output terminal and a second output terminal. The input terminal includes a first electrical input conductor or contact and a second electrical input conductor or contact both mounted to the housing. Similarly, the first output terminal includes a first electrical output conductor or contact and a second electrical output conductor or contact both mounted to the housing, while the second output terminal includes a third electrical output conductor or contact and a fourth electrical output conductor or contact both mounted to the housing.

Abstract: A plug-in electrical converter device is set forth wherein a removable face containing one of a plurality of various 220 volt connector plugs is selectively securable to a housing containing a plurality of 110 volt outlets with the housing containing a slide connector electrically engageable with a respective strip. Each of the strips accepts one phase of the 220 volt connector plug with a central resilient slide to provide the neutral conductor.

Abstract: A hybrid interface adapter is provided for interfacing a digital assembly to a standard data and control bus. The adapter includes level translating circuits for translating signal levels between the assembly and the control bus. The adapter also has a first port for connection to a bus through a standard connecter and a second port for connecting and mounting the adapter to the digital assembly.

Abstract: An intermediate electrical component for an electrical connector has a body portion and a cap portion interfitted therewith. A plurality of terminal elements having stranded conductors connected to them are positioned in the body portion and substantially enclosed by the cap portion to prevent strays from escaping from the body portion and the cap portion.

Abstract: A combination electric power tap and cable connector is permanently attached to a duplex wall receptacle over the wall plate by means of a mounting stud and screw, wherein the mounting stud is an elongated member having an externally threaded machine screw which screws into the receptacle at one end and an internally threaded blind hole for receiving the mounting screw at the other end.

Abstract: An electrical outlet strip with a serially-arranged plurality of outlets has a terminal outlet spaced a distance sufficient from its adjacent outlet to receive an oversized plug or adapter without interfering with the receipt of a standard-sized pronged plug by the adjacent outlet. The internal wiring of the outlet strip of the invention includes a circuit breaker built directly into the housing of the outlet strip. The electrical outlet strip of the present invention is further provided with an outlet strip cradle for removably mounting the outlet strip to a surface.

Abstract: In order to connect small electric apparatus having for example a two-pin configuration or a European flat plug into any of the international standard plugging systems according to need, a handy pentaprism-shaped connector has on its sides plug pin arrangements (2) for five different plugging systems and contains a revolving body (4, 7) which has in the area of the top and/or bottom surface of the connector sockets for two more plugging systems. These can be manually snapped (8, 9) into contact (3, 5, 6) with the plug pin arrangement (2) of the connector needed at any time, the remaining plug pins being then absolutely deprived of any voltage.

Abstract: An adapter for providing electrical access to individual circuits of a telephone circuit cable head is disclosed. The adapter has an elongated rectangular housing and is intended for placement between rows of receptacles of the cable head and protective plugs that mate with the cable head. Five sets of pins and sockets per receptacle are supported by the housing, with the pins for each set extending downward from a lower planar surface for engagement with sockets of the cable head and sockets for each set extending inward from an upper planar surface. Three sets of pins and sockets for each receptacle are connected to one another, providing uninterrupted electrical contact. The other two, coupled to tip and ring wires, are interrupted by a gap leaving pin and socket ends within the housing. These ends have wires joined to them, the wires extending outward for connection to test equipment. The wires in turn are coupled to a connector half for use with computerized test equipment.

Abstract: A multiconnector block (19) for insertion between a junction block (4) and wire harness connectors (13), has a first array of terminals (24) to interconnect with the junction block (4), a second array of terminals (26) to interconnect with the connectors (13), and electrical connections among selective of the first and second arrays of terminals to provide required electrical circuitry.

Abstract: An apparatus for electrically connecting two audio components for transferring an audio signal between the components in which first and second connector blocks have first terminals for respectively connecting to the conventional terminals of the audio components. Each connector block has a plurality of additional terminals electrically connected to the first terminal. A plurality of electrical conductors, having different electrical current transfer characteristics, are connected between two corresponding additional terminals of the connector blocks to complete the connection.

Abstract: A modular wiring system including a fixture interceptor for electrically wiring together several overhead light fixtures of an office building using modular components whereby a selected group of fixtures may be locally switched as desired. All components of the system matingly connect with other components through molded connectors and recessed sockets to provide foolproof installation and strong, wear-resistant physical connections. Each fixture is provided with a self-fastening, molded fixture interceptor having recessed input and output fixture sockets. Mating joiner cables connect a power supply to a starting fixture and pairs of successive fixtures, one end of each joiner cable connecting to an input fixture socket of one fixture and the other end to an output fixture socket of another fixture. A molded switching interceptor (i.e. switch tap box) is connected via a joiner cable to the fixture interceptor of the first fixture selected for local switching.

Abstract: Distribution hanger for decorative light strings comprises: a distribution box made of insulation material, a power inlet plug, conductor wires connected within the box to provide a plurality of outlet sockets and/or connectors for lamp seat, for distribution or cascading string sets thereof, and a hanging hook or ring made integrally with the box; advantageously, the lid of the box is also made integral. The hanger gives synergetic effects of interest and variation.

Abstract: An upper and a lower body having three sockets, two on the upper portion and one on the center of the bottom face of the lower body. Each socket has a slide cover which fits into a track and which can slide back and forth to align and disalign with conductor prong holes. The slide covers each have hook-like legs which slideably secure them in slide cover leg slots. Retainers are on the inside of the upper and lower bodies to hold conductor plates in place. The prongs of a plug, when engaged with the present invention, fit through engagement slots on the slide covers and conductor prong holes to the protruberances of the conductor plate. When not in use, the slide cover can be slid to one side so as to close the passage to the conductor plate.

Abstract: A panel-mounted duplex electrical receptacle easily is ganged with another receptacle to form a power terminal strip of any desired length. Each receptacle is mounted with a snap action in a cutout formed in a panel. The receptacles are wired together by inserting a bare conductor into aligned channels formed in the receptacles. Resilient tongues are provided on contact strips provided within the receptacles for pressing the inserted conductor into electromechanical contact with the respective contact strip. A resilient tab on each receptacle lockingly retains the inserted conductor in each channel. Each contact strip is cut from a substantially planar preform in a scrapless manner.

Abstract: A boxless wiring installation in which a wall switch or a duplex electrical receptacle may be mounted with snap action within and on a support member which is mounted by means of swing-out wall clamps to a wall.