Circuit BreakerFree Patent Search

  • Connection clip to a busbar for a draw-in multipole circuit breaker or system

    Circuit Breaker Abstract A connection clip electrically connects one of the contact terminal strips of a circuit breaker to a terminal strip for connection to a busbar. At least one opposed pair of independent contact fingers in the form of a bridge...

  • Sequential isolating circuit breaker and actuator

    Circuit Breaker Abstract A circuit breaker comprises a vacuum interrupter and an isolator in series combination, the vacuum interrupter providing fast interruption of current and the isolator providing a large gap when in the open condition for addit...

  • Circuit breaker having semi-moving piston

    Circuit Breaker Abstract A puffer type circuit breaker comprising a compression chamber closed by a pressure wall of a semi-moving piston, a first mechanism for preventing the piston from moving during a first portion of the opening displacement of t...

  • Circuit breaker operator which actuates toggle and push button switches and has a misalignment indica

    Circuit Breaker Abstract A circuit operator with a push to test arrangement includes a housing. A first switch is mounted in the housing and has a toggle lever pivotably connected thereto so as to place the toggle switch in its on or off state. A sec...

  • Manual override mechanism for a remote controlled circuit breaker

    Circuit Breaker Abstract A remotely controllable circuit breaker device for interrupting current in a circuit path between a source and a load includes local and remote monitoring capabilities and a gear mechanism for reliable remote control of the i...

  • Thermal circuit breaker apparatus

    Circuit Breaker Abstract An open ended cup shaped housing (12) has first and second spaced electric terminals (14,16) extending through the bottom wall of the housing into a switch chamber with a snap acting, current carrying disc (18) cantilever mou...

  • Terminal connection locking apparatus for vacuum circuit breaker

    Circuit Breaker Abstract A terminal connection locking apparatus for a vacuum circuit breaker a trapping latch movably engaged to a driving cam, a crossbar connected to a lower portion of the trapping latch, change levers connected to a central lower...

  • Reverse deflection prevention arrangement for a bimetal in a circuit breaker

    Circuit Breaker Abstract A reverse deflection prevention arrangement is provided for use in a circuit breaker for preventing a bimetal from bending in a direction opposite its normal thermal deflection. The reverse deflection prevention arrangement i...

  • Residential circuit breaker having an enhanced thermal-magnetic trip unit

    Circuit Breaker Abstract A residential circuit breaker electromagnetic trip unit facilitates the assembly of the trip unit components by use of a pair of braid connectors for connection between the trip unit magnet and the circuit breaker contact arm...

  • Adjustable electromagnetic trip device and a circuit breaker comprising such a trip device

    Circuit Breaker Abstract The trip device comprises a magnetic circuit having a first and second fixed parts, a movable element and an adjustment device. The adjustment device comprises a shunt and an air gap arranged between the first and second fixe...

  • Apparatus and method for adjustment and coordination of circuit breaker trip curves through graphical

    Circuit Breaker Abstract The trip curves of circuit protection devices in an electric power distribution system are individually adjusted and coordinated in a hierarchy of protection devices by graphical manipulation, such as by dragging with a mouse...

  • Molded case circuit breaker and moving conductor assembly therefor

    Circuit Breaker Abstract A molded case circuit breaker has a moving conductor assembly which includes a modular carrier assembly incorporating a plurality of spring biased contact cam members each of which engages contact pressure lobes on a pair of...

  • Circuit breaker

    Circuit Breaker Abstract A circuit breaker with a completely electromagnetic type overcurrent tripping device has a flexibility for changes in the production schedule of the overcurrent tripping device. An overcurrent tripping device for each pole is...

  • Circuit breaker with integrated control features

    Circuit Breaker Abstract A digitally controlled circuit breaker includes a conventional thermal circuit breaker (10) which is controlled by a solenoid (16) to override the thermal aspect thereof. The solenoid (16) is controlled by a digital processin...

  • High-tension circuit-breaker with damper

    Circuit Breaker Abstract A high-tension circuit-breaker includes fixed contacts and a mobile assembly including mobile contacts. The mobile assembly is connected to an operating mechanism by an operating rod. The circuit-breaker includes a device for...

  • Vacuum electrical switch or circuit breaker

    Circuit Breaker Abstract A vacuum switch with an elongated cartridge comprising a cylindrical housing sealed by two end plates. Inside the cylindrical housing there are two arcing contacts, one stationary and one movable. The stationary contact is se...

  • Circuit breaker current limiting arc runner

    Circuit Breaker Abstract A circuit breaker is equipped with a current limiting arc runner for effective overcurrent interruption without additional heating under quiescent operating conditions. Upon contact separation, an arc is drawn with the endpoi...

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  • Total 68 pages, 1156 patent(s)