Abstract: A Leakage Current Detection and Interruption (LCDI) device, for use as a safety device for a load cable. The LCDI circuit card assembly incorporates a load input cavity having fire retardant materials surrounding the load input terminals, a separated containment cavity structure for a first Metal Oxide Varistor (MOV), and a contact actuator which encases the switch or contact arm at the source input section of the LCDI. The circuit design incorporates redundant safety features for containment of spurious ignitions.

Abstract: A Leakage Current Detection and Interruption (LCDI) device, for use as a safety device for a load cable. The LCDI circuit card assembly incorporates a load input cavity having fire retardant materials surrounding the load input terminals, a separated containment cavity structure for a first Metal Oxide Varistor (MOV), and a contact actuator which encases the switch or contact arm at the source input section of the LCDI. The circuit design incorporates redundant safety features for containment of spurious ignitions.

Abstract: A Leakage Current Detection and Interruption (LCDI) device, for use as a safety device for a load cable. The LCDI circuit card assembly incorporates a load input cavity having fire retardant materials surrounding the load input terminals, a separated containment cavity structure for a first Metal Oxide Varistor (MOV), and a contact actuator which encases the switch or contact arm at the source input section of the LCDI. The circuit design incorporates redundant safety features for containment of spurious ignitions.

Abstract: A sealing assembly for mating two sections of an electrical device enclosure is disclosed. The enclosure includes a top and bottom joinable section. The sealing assembly includes a first sealing section disposed on the top joinable section that has both first and second upper projecting lip extensions. The second upper projecting lip extension has a height less than the first upper projecting lip extension and forms a channel therebetween. A second sealing section is disposed on the bottom joinable section, and includes a downward projecting lip extension and channel. The downward projecting lip extension is offset from the first section first upward projecting lip extension when the top and bottom joinable sections are joined. At that point the downward projecting lip extension engages within the channel of the first sealing section, and the second upper projecting lip extension of said first sealing section is engaged within the second sealing section channel.

Abstract: A ground fault circuit interrupter (GFCI) for regulating the flow of current through a pair of conductive lines extending between a power source and a load. The GFCI includes first and second pairs of terminals located at opposite ends of the conductive lines, the first pair of terminals being designated for connection with the power source and the second pair of terminals being designated for connection with the load. A pair of electrical outlets are connected to conductive lines at a location between the first and second pairs of terminals. A circuit breaker is located in the conductive lines between the electrical outlets and the first pair of terminals. A ground fault detection circuit detects the presence of a ground fault condition in the conductive lines and, in response, generates a trip signal which is used to energize a solenoid that is ganged to the circuit breaker.

Abstract: A braided cord is provided comprising a conductive foil made of aluminum or copper or similar good electrically conductive materials. The foil is wrapped around the line (hot) and neutral wires of a cord. Over the foil is the braid made of copper strands. Due to the conductive foil underneath the braid of copper strands, the amount of braid coverage can be considerably reduced, thus making the cord used in LCDI applications considerably less expensive. The LCDI's are typically used on room air conditional power supply cords as required by the NEC and UL standards.

Abstract: A piezoelectric switch includes a piezoelectric element which is electrically connected to a printed circuit board by a pair of wires. A unitary plastic carrier is designed to retain both the piezoelectric element and the printed circuit board fixedly mounted thereon. In turn, the plastic carrier is sized and shaped to be co-axially disposed within the interior cavity of a generally cylindrically-shaped protective housing, wherein the plastic carrier is provided with at least one flexible finger which is configured to snap-fit into engagement within an annular groove formed in the inner surface of the housing so as to retain the carrier in place within the interior cavity. With the carrier fixed in place within the housing, an adhesive spacer disposes the piezoelectric element in contact with the inner surface of a touch plate provided in the housing.

Abstract: A fireguard circuit for a power cable, which comprises a power line, a neutral line and a metal sheath surrounding the power line and the neutral line, includes a circuit breaker switch located in one of the lines. A solenoid sets the circuit breaker switch in either an open position or a closed position. An arc detection subcircuit connects the metal sheath to the solenoid and causes the solenoid to open the circuit breaker switch upon detecting the presence of an arcing condition between either the power line and the metal sheath or the neutral line and the metal sheath. The power connections for the solenoid and the arc detection subcircuit are derived from the power cable at the power source. In order to prevent the solenoid from overheating and/or burning upon the presence of an arcing condition, a protection switch is ganged to the solenoid and terminates the supply of power to the solenoid when an arcing condition is detected.

Abstract: A ground fault circuit interrupter (GFCI) for use with a power cable which connects a power source to a load. The GFCI includes first and second pairs of terminals which are located at opposite ends of the power cable, the first pair of terminals being designated for connection with the power source and the second pair of terminals being designated for connection with the load. A pair of electrical outlets are connected to the power cable at a location between the first and second pairs of terminals. A first circuit breaker is located in the power cable between the pair of electrical outlets and the second pair of terminals. A ground fault detection circuit detects the presence of a ground fault condition in the power cable and, in turn, generates a trip signal which is used to energize a solenoid that is ganged to the first circuit breaker.

Abstract: A fireguard circuit for a power cable, which comprises a power line, a neutral line and a metal sheath surrounding the power line and the neutral line, includes a switch located in one of the lines. A solenoid sets the switch in either an open position or a closed position. A first silicon controlled rectifier (SCR) causes the solenoid to open the switch upon detecting the presence of an arcing condition between the power line and the metal sheath. A second silicon controlled rectifier (SCR) causes the solenoid to open the switch upon detecting the presence of an arcing condition between the neutral line and the metal sheath. The second SCR is connected in parallel with the first SCR, the anode of the first SCR being connected to the cathode of the second SCR and the cathode of the first SCR being connected to the anode of the second SCR.

Abstract: A fireguard circuit for a power cable, which comprises a power line, a neutral line and a metal sheath surrounding the power line and the neutral line, includes a switch located in one of the lines. A solenoid sets the switch in either an open position or a closed position. A first silicon controlled rectifier (SCR) causes the solenoid to open the switch upon detecting the presence of an arcing condition between the power line and the metal sheath. A second silicon controlled rectifier (SCR) causes the solenoid to open the switch upon detecting the presence of an arcing condition between the neutral line and the metal sheath. The second SCR is connected in parallel with the first SCR, the anode of the first SCR being connected to the cathode of the second SCR and the cathode of the first SCR being connected to the anode of the second SCR.