Circuit BreakerFree Patent Search

  • Circuit breaker accessory module actuators

    Circuit Breaker Abstract An accessory module monitoring and controlling the status of a circuit breaker. The accessory module attaches to the side of a circuit breaker and has a mechanism similar to the mechanism in a circuit breaker. The mechanism h...

  • Circuit breaker draw apparatus and system with a slider flange attached to the active draw bracket

    Circuit Breaker Abstract A circuit breaker draw apparatus, means and system for use with a circuit breaker assembly, where the circuit breaker assembly has a circuit breaker unit that is adapted for connection to or disconnection from a circuit break...

  • Drawer type circuit breaker with drawer contacts biased against contact arcuate portions and external

    Circuit Breaker Abstract In a drawer type circuit breaker of the invention, when a first contact is clockwise pivoted by a switching mechanism, the contact tip of the first contact and the contact tip of a second contact are touched, and when the fir...

  • Circuit breaker

    Circuit Breaker Abstract A bent roundabout current path (8d) rising in the shape of an inverted U is formed between a horn portion (8a) and the end portion of a fixed contact (1) where an arcing horn (8) is joined to the fixed contact (1). An arc (12...

  • Gas circuit breaker

    Circuit Breaker Abstract The gas circuit breaker comprises a metal container filled with an insulating gas; first and second contacts disposed opposite each other in the metal container so that they can be brought into and out of engagement with each...

  • Electrical circuit breaker with manual and remote actuators

    Circuit Breaker Abstract An electricity switching device has an control handle reciprocally moveable between two positions. A remotely controllable operator attaches to the switching device and has an actuator that is coupled by a lever to the contro...

  • High voltage circuit breaker with insertion of resistance on closure

    Circuit Breaker Abstract A high voltage circuit breaker with insertion of resistance on closing, wherein the resistance is inserted by a fixed insertion electrode co-operating with the end of the moving main contact, the blast nozzle and the arcing c...

  • Module for use with a miniature circuit breaker

    Circuit Breaker Abstract A module for use with the circuit breaker, the module being arranged to be mounted on an end of the circuit breaker and to monitor and/or control the circuit breaker and/or an electrical circuit control thereby in use. The mo...

  • Single piece arcing contact for a circuit breaker

    Circuit Breaker Abstract A circuit breaker having a movable load contact arm (14), which pivots between an open position and a closed position, and a stationary line contact arm (16). The circuit breaker includes an arcing contact structure (210) whi...

  • Circuit breaker with improved trip mechanism

    Circuit Breaker Abstract A circuit breaker mechanism has a contact arm (56) forming a portion of an interruptable load current path through the circuit breaker and mounted with respect to a pivot (110) for swinging motion to break the current path. A...

  • Circuit breaker having contacts with erosion-resistant covering

    Circuit Breaker Abstract A circuit breaker includes a cylindrical arcing chamber filled with an insulating medium. The arcing chamber has a power current path and an insulating housing. The insulating housing has a longitudinal axis and the power cur...

  • Current limiting apparatus for circuit breaker

    Circuit Breaker Abstract A current-limiting apparatus for a circuit breaker which makes it possible to effectively protect an electric load element by quickly blocking an electric flow path when an excessive current flows due to a ground, shortage, e...

  • Circuit breaker contact spring subassembly and method and apparatus for making and circuit breaker in

    Circuit Breaker Abstract The helical contact compression springs of a circuit breaker are preassembled in a contact clip for easier assembly of the circuit breaker. The bottom wall of an elongated trough formed by the clip is pierced by holes forming...

  • Compact circuit breaker incorporating a polymer current limiter

    Circuit Breaker Abstract A compact current limiting circuit breaker utilizes a polymer current limiter, an arc rail and an arc gap for effective overcurrent protection. Upon the occurrence of contact separation an arc is drawn between the circuit bre...

  • Gas circuit breaker

    Circuit Breaker Abstract A dielectric gas produced at the time of current interruption is exhausted into an exhaust structure 1 through an opening 8 formed on a fixed-side support member 6 combined with a fixed arcing contact 4. The exhaust structure...

  • Vacuum circuit breaker as well as vacuum valve and electric contact used in same

    Circuit Breaker Abstract According to the present invention there are provided a highly reliable electrode of high strength which undergoes little change even with the lapse of time, and a method for making the same, as well as a vacuum valve using s...

  • Contact material for a vacuum circuit breaker and a method for manufacturing the same

    Circuit Breaker Abstract Interrupting and chopping characteristics of a Cu--Cr contact alloy are improved by rounding Cr particles to be spherical in the alloy. The Cr particles are rounded in the alloy by sintering raw Cr powder particles having an...

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  • Total 68 pages, 1156 patent(s)