Abstract: This invention relates to an arrangement of contact potential responsive switching devices.According to this invention the contact voltage responsive switch and the outlet may either be combined into a unit, or the switch and an outlet may be arranged at different locations, or the switch may be combined with the outlet into a unit, and one or more outlets positioned at different locations all of which are controlled by the switch may be added.

Abstract: An air pressure instrument embodying a base receptacle adapted to be mounted to an instrument panel and to be connected to air and electric lines at the panel and a plug-in receptacle containing a pressure-responsive element and switch operable thereby adapted by plugging into the base receptacle to automatically connect the pressure-responsive element to the pressure line and the switch to the electric line.

Abstract: A multi-mode electrical switch-outlet assembly as characterized by separate switch and outlet receptacle modules which are selectively plugged into a wiring box in the selected one of numerous possible combinations, there being a special face plate designed to snap-lock onto these modules, sandwiching them between the face plate and the wiring box, the latter of which is adjustably retained in a special mounting bracket which ordinarily would be connected to a building stud behind the wallboard.

Abstract: An adaptor or connector for use with a continuous outlet current supply installation including a channel-section track member housing elongate conductors, comprises a body portion carrying fixed contact fingers and securing lugs, the whole adaptor being rotatable through 90.degree. to engage the securing lugs with the track and the contact fingers with the conductors, and the adaptor being provided with a switch connected in series with one of the contact fingers and having an operating member in common with a projection which serves to lock the adaptor in proper rotational alignment with the track member, the arrangement being such that the switch cannot be closed when the locking projection is retracted and the locking projection cannot be retracted while the switch is closed.

Abstract: An electric receptacle for ordinary household or trade size junction boxes having a complete ground fault circuit interrupter incorporated in the receptacle, including electronic components to detect a ground fault on the load side of such receptacle, and a coil and trip mechanism which is actuated when a ground fault is detected. On occurrence of a ground fault, the coil and trip mechanism opens the protected circuit. Means to test the interrupting mechanism, means to indicate the interrupter contacts are open, means to reset after testing or occurrence of a ground fault, and means to provide an audible signal if improperly wired, are included.

Abstract: A male contact assembly for high voltage switching applications includes a male contact with an electrically insulative member arranged concentrically with the contact and extending longitudinally therefrom. The insulative member has a hollow interior adjacent the contact and electrically conductive material in such hollow interior is in electrically conductive connection with the contact. Arc-quenching material overlies the insulative member and, on fracturing of such material, the insulative member isolates the electrically conductive material therein and the contact from electrical arcing.

Abstract: A male contact assembly for high voltage switching applications includes an elongate male contact with an electrically conductive extension arranged concentrically with the contact and extending longitudinally therefrom. A layer of electrically insulative material overlies the contact extension and arc-quenching material overlies such electrically insulative layer. The electrically insulative layer is more resilient than both the extension and arc-quenching material whereby the assembly can withstand greater cantilever stressing prior to fracture of the arc-quenching material than an assembly lacking such resilient layer. On such fracturing, the electrically insulative layer isolates the contact extension and contact from electrical arcing.

Abstract: The invention comprises a combination electrical outlet and switch assembly characterized by a rocker-type actuator pivoted to the front of a wiring box, and a pair of sliding cam bars are pivoted to one end of the rocker and have non-linear or "programmed" surfaces which slide in biased relation across a pair of switch contacts to open and close same, these cam bars being arrangeable in several different ways, and being usable on two separate rockers to achieve several different switching modes in the same basic assembly. The outlet portion of the box includes three conductive elements adapted to receive the prongs of an electrical plug and having connector means comprising sleeves mounted within a casing of the wiring box by simply inserting stripped wires into the sleeve. The completed wiring box is adjustable forwardly and rearwardly in a special bracket to permit aligning the front plane of the assembly flush with the exposed surface of newly installed wall board.

Abstract: A male contact assembly for high voltage switching applications includes a male contact with an electrically insulative member arranged concentrically with the contact and extending longitudinally therefrom. The insulative member has a hollow interior adjacent the contact and a solid electrically conductive element in such hollow interior is in electrically conductive connection with the contact. Arc-quenching material overlies the insulative member and, on fracturing of such material, the insulative member isolates the electrically conductive member therein and the contact from electrical arcing.

Abstract: The assembly includes a dielectric base having molded structural portions for receiving and mounting a manually operated switch, and for receiving and mounting a plurality of electrical connection terminals that serve to connect lead wires to the switch contacts. The switch contacts and electromechanical switching mechanism are mounted in a preassembled switch body, from which a plurality of substantially rigid electrical connection prongs extend. The base includes a honeycomb-like cluster of terminal receiving recesses and a plurality of prong receiving apertures, one for each recess. The prong receiving apertures extend inwardly of the base from a surface thereof defining a recess for seating the body of the switch, with each aperture opening into a separate one of the terminal receiving recesses through an interior recess sidewall.

Abstract: An electrical connector including selective polarization keying between the ground pin contact and ground socket contact. A rotatable sleeve around the ground socket contact selectively locks the ground pin contact in position or prevents insertion thereof when a circuit breaker is on.

Abstract: A master structure supports a plurality of independent switching and control units. Insertion of a switching and control unit into the master structure makes electrical connection. Load carrying circuits are automatically bridged by the removal of a unit. A test connector and plug enable in-circuit isolation and test of the electrical components within a unit. Mechanical keying insures correct location of units within the master structure.

Abstract: This disclosure depicts a means for energizing a color television cathode ray tube during manufacture. In particular, this means for energizing a color television picture tube is for use with a tube having an envelope containing an electron gun assembly and a base attached to a neck of the envelope. The base has electrically conductive pins connected to elements of the electron gun assembly wherein a first of the pins on the base carries a relatively high focus potential of many kilovolts and a second of the pins carries a substantially higher main focus lens potential. The means for energizing the tube during the manufacture comprises a socket for coupling with the base on the tube wherein the socket has a lead attached to a source of high potential, the lead being characterized by having a switch. The switch has an electrically nonconductive casing filled with a dielectric fluid.

Abstract: Theft of electrical appliances and the like is counteracted through provision of an alarm activated by removal of an electrical power line plug from an outlet by opening a normally closed or closing a normally open pair of contacts to gate a thyristor or relay and provide power through the thyristor or relay to a light, audible alarm or the like, the contacts being entirely hidden within the outlet. The alarm may also be activated by cutting a power line.

Abstract: A hand trouble lamp with a one-piece molded hollow body of an impact-resistant elastomer open at both ends, and a rigid socket member insertable into said body through one end thereof. The socket member is made in two halves and may be completely bussed, as necessary, and connected to the conductor of a cord outside of the handle body and then inserted therein. A switch or an outlet receptacle or both may be included on the socket member, and both completely covered by the handle body to make it dust and oil proof.

Abstract: A weighing scale especially adapted for use as a pediatric or infant scale having a mechanical leverage weighing structure with a high degree of sensitivity and low friction and hysteresis coupled with a compatible electronic measuring system and a digital read-out system is provided wherein a base has a weight responsive movable platform mounted thereon, a housing mounted on the base behind the platform, said housing forming an enclosure extending upwardly substantially higher than the platform with weighing mechanism inside the housing connected through an opening in the base to the platform, the weighing mechanism including a variable inductance transducer which generates a signal in response to weight on the platform and a read-out unit mounted on the top of the housing, said read-out unit displaying weight measurements and being operable in response to said signal.

Abstract: An electrical plug adaptable for joining the conductors of an attached line cord to a socket, in which conducting elements are mounted on one or more discs rotatably mounted in the plug so that the plug conducts electricity only when the discs are rotated to a particular setting. The plug prevents unauthorized use, particularly by young children, when the discs are rotated off the particular setting.

Abstract: An electrical timer-switch has a clock motor which closes and opens a switch, the two contact points of the switch being wired to external contacts which can be plugged into a wall switch receptacle to establish a shunt around the latter switch.

Abstract: Means for connecting an electrical load system to a voltage source of a predetermined first voltage level for the operation of said system at optionally one of said first voltage level and a lower second voltage level, said means comprising an electrical plug element comprising a housing member, electrical conductor prongs extending from said housing member, and electrical conductor means electrically connected at one end thereof to said load system, said conductor means comprising separate first and second conductor paths electrically connected to respectively first and second said conductor prongs, said first conductor path comprising parallel first and second circuit paths electrically connected to said conductor prong associated with said conductor path, one of said circuit paths comprising an electrical rectifier element and another of said circuit paths comprising switching means that is open when said plug element is at a first orientation at said voltage source and closed when said plug element at a s

Abstract: An electrical connector device comprising one or more conductive metal connector elements and a two part insulator block having one or more parallel, longitudinal passages to accommodate therein the connector elements. Each connector has crimping ears on one end and a tubular barrel with locking barbs on the other end so as to permit one wire to be mechanically crimped into position and the other wire to be simply plugged in without use of any additional add-on device. The subject device is especially adapted for mounting on a circuit breaker panel so as to permit the individual circuit breakers to be prewired to individual connector devices. This permits actual wiring of the circuit breaker box to the external cables by a simple and secure plug-in operation.

Abstract: A socket for a watt-hour meter is provided with a manual by-pass device to prevent interruption of power to a load when the watt-hour meter is removed from the socket. The manually operable by-pass device comprises a slider having a pair of contact bridges mounted on a body portion of the slider. The slider is mounted on an insulating base of the by-pass device for reciprocable movement. The bar is supported by contact brackets which are connected to line and load terminals of the meter socket, the slider being reciprocably movable to provide selective engagement between the contact brackets and the contact bridges when the watt-hour meter is removed from the socket.

Abstract: A separable connector module for connecting shielded electrical power cable. It is of the type including an insulating housing containing a cable insert member. A male contact rod assembly, including a metal contact rod, is fixed at one end to the insert member. An insulating arc follower is fixed to the rod at its other end. An insulating mounting pin extends from the end of the rod and along at least a portion of the interior of the follower. The improvement comprises an electrically conducting coating on the mounting pin and in electrical contact with the rod.

Abstract: The invention comprises a slide-operated switch having a pair of separate movable contacts which are normally biased away from a single stationary contact and are pressed against the stationary contact to energize the switch by a pair of ribs on a sliding toggle plate assembly. The ribs each have a relieved portion which when aligned with the respective movable contact, permits same to move away from the fixed contact and open the circuit. If the ribs are mounted on a single toggle plate, the movable contacts are closed and opened alternately or simultaneously depending on whether the relieved portions are aligned or staggered on the respective ribs. Two separate toggle plates can also be used for the independent operation of both switches, and outlet assemblies may be provided above and below the toggle plates. Wires are joined to the various contacts by means of unique screw-operated clamp terminals.

Abstract: A two part cylindrical insulation body for a male electrical plug is provided with a recess at the abutting end face and a two section prong has sections carried by respective body portions with flexible switch contact within the recess and facing each other. A rotatable sleeve mounted on the body in concentric fashion for rotation is provided with an integral sector-shaped projection on its inner periphery which may be rotated to place an insulative portion between the flexible contact or a conductive insert to complete an electrical circuit between the prong sections.