Circuit BreakerFree Patent Search

  • Gas-blast high-voltage circuit-breaker

    Circuit Breaker Abstract A gas-blast circuit-breaker includes a jacket filled with a dielectric gas. A mobile arc contact cooperates with a fixed arc contact within the jacket. The mobile arc contact is part of a mobile contact assembly which is disp...

  • Circuit-breaker with a disconnector

    Circuit Breaker Abstract A circuit-breaker including main contacts and arcing contacts includes a shaft carrying a first lever connected to the moving main contact. A hub is mounted inside the shaft and carries a second lever connected to the moving...

  • ARC chute assembly for circuit breaker

    Circuit Breaker Abstract An arc chute assembly for a circuit breaker includes a plurality of U-type grids respectively including an engagement protrusion extended from each side thereof, the engagement protrusion having a key pin opening formed there...

  • Multipolar circuit breaker

    Circuit Breaker Abstract A multipolar circuit breaker is provided for securely operating tripping sections of other poles when the tripping section of any pole operates. In the case of a first embodiment, a protrusion 5 for further moving a trigger p...

  • Apparatus for locking a circuit breaker

    Circuit Breaker Abstract Apparatus which is well suited for positioning a pin to immobilize a circuit breaker switch comprises an elongated base member and an aperture-defining means, such as a wire or plate, fastened to the base member. The base mem...

  • Circuit breaker

    Circuit Breaker Abstract A circuit breaker includes a current path for first and second contacts connected in series in an insulative container. When an overcurrent occurs by over load, the second contact is opened based on a command from a time dela...

  • Circuit breaker handle operator apparatus and system

    Circuit Breaker Abstract A circuit breaker operator handle apparatus means and system for use with a circuit breaker assembly having a linearly movable actuator for actuating the circuit breaker assembly to at least an ON position and an OFF position...

  • Static and monolithic current limiter and circuit-breaker

    Circuit Breaker Abstract The present invention relates to a static and monolithic current limiter and circuit-breaker component including, between two terminals, a one-way conduction current limiter, a sensor of the voltage between the terminals, and...

  • Circuit breaker movable actuator blocking and securing apparatus, means and system

    Circuit Breaker Abstract A circuit breaker movable actuator locking apparatus, means and system for use with a circuit breaker assembly, where the circuit breaker assembly has a movable actuator that is movable at least between at least a first posit...

  • High voltage hybrid circuit-breaker

    Circuit Breaker Abstract A high voltage hybrid circuit-breaker has an arc circuit with a gas circuit-breaker connected in a series with a vacuum bulb. The housing is subdivided into a first compartment enclosed by an insulator for housing the primary...

  • Circuit breaker having a snap-in attachable collar

    Circuit Breaker Abstract A molded insulating collar for an insulating housing of a circuit breaker has a plurality of depending tabs which are received in grooves in the housing and provided with cooperating snap-fit structures within the housing to...

  • Molded case circuit breaker with ground fault protection and signaling switches

    Circuit Breaker Abstract A molded case circuit breaker is provided with ground fault protection by a modular unit which drops into a pole compartment in the molded casing in place of a pole assembly. The modular unit includes a housing forming an ope...

  • Intermediate latch for a molded case circuit breaker

    Circuit Breaker Abstract A molded case circuit breaker includes a generally Z shaped intermediate latch structure which has upper and lower substantially planar sections that are each bent at an angle with respect to a center pivot section. The upper...

  • Separable circuit breaker

    Circuit Breaker Abstract A separable circuit breaker includes a separate trip apparatus portion, having a trip apparatus and a trip apparatus container, and a switching apparatus portion having a switching apparatus and a switching apparatus containe...

  • Manual charging mechanism for industrial-rated circuit breaker

    Circuit Breaker Abstract An air circuit breaker closing spring charging mechanism includes a ratchet and pawl whereby the closing spring charging gear is protected from damage due to reverse rotation of the ratchet when the charged closing springs ar...

  • Phase barrier for use in a multiphase circuit breaker

    Circuit Breaker Abstract A method and apparatus for interrupting the flow of electrical current in a multiphase circuit path between at least one source and at least one load including a circuit breaker having an electro-mechanical assembly and a bla...

  • Miniature circuit breaker with shunt trip device

    Circuit Breaker Abstract A circuit breaker system with a shunt trip device is taught in which the shunt trip device occupies a miniature circuit breaker case and utilizes features of the miniature circuit breaker case except that it is provided with...

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  • Total 68 pages, 1156 patent(s)