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Girish Hassan, Narayansamy Soundararajan, Yatin Vilas Newase: Contact arm apparatus and method of assembly thereof. General Electric Company, Cantor Colburn, March 13, 2007: US07189935 (20 worldwide citation)

A contact arm assembly having a contact arm module is disclosed. The contact arm module includes a set of contact arms, two side plates, a pivot pin, and a set of springs. Each contact arm includes a pivot hole, two contacts, and two spring holders. The two side plates are disposed on an opposing si ...


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Randall Green, Roger Castonguay, Dave Christensen, Girish Hassan: Trip override for rotary breaker. General Electric Company, Cantor Colburn, June 11, 2002: US06403909 (15 worldwide citation)

A circuit breaker assembly includes first and second rotary contact assemblies mountable to a base member, a circuit breaker operating mechanism mounted to the first rotary contact assembly, and a trip bar in mechanical communication with the first rotary contact assembly and the circuit breaker ope ...


3
Roger N Castonguay, Thomas F Papallo, Randall L Greenberg, Girish Hassan: Supplemental trip unit for rotary circuit interrupters. General Electric Company, Carl B Horton, Cantor Colburn, January 16, 2001: US06175288 (11 worldwide citation)

A supplemental magnetic trip unit is arranged on the load strap of an industrial-rated circuit breaker to interrupt circuit current upon occurrence of a short circuit fault. The trip unit employs a U-shaped magnet and a hinged armature that articulates the circuit breaker operating mechanism latch t ...


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Roger N Castonguay, Dave S Christensen, Girish Hassan: Circuit breaker handle block. General Electric Company, Cantor Colburn, December 26, 2000: US06166344 (10 worldwide citation)

A circuit breaker having a crank for coupling a switching mechanism to the contact pole structure is presented. The crank has a pair of cam surfaces which cooperate with a blocking lever to restrict movement of the operating handle when the contacts of the circuit breaker are welded. The blocking le ...


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Roger N Castonguay, Dave S Christensen, Randy Greenberg, Girish Hassan, Dean A Robarge: Circuit interrupter operating mechanism. General Electric Company, Carl B Horton, Cantor Colburn, February 12, 2002: US06346868 (7 worldwide citation)

An operating mechanism controls and trips a separable contact structure arranged in a protected circuit. The mechanism includes a frame, a drive member pivotally coupled to the frame, a spring pivotally connecting the drive member to a drive connector, an upper link pivotally seated on the drive con ...


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Roger N Castonguay, Girish Hassan, Dave S Christensen: Draw out interlock for circuit breakers. General Electric Company, Cantor Colburn, June 4, 2002: US06400245 (7 worldwide citation)

A draw out interlock mechanism comprises a draw out trip arm pivotally attached in a draw out circuit breaker and an interlock activating assembly attached to a the draw out circuit breaker. The draw out trip arm comprises a first extension on a first end and a second extension on a second end. The ...


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Roger N Castonguay, David S Christensen, Girish Hassan, Dean A Robarge: Auxiliary switch actuation arrangement. General Electric Company, Cantor Colburn, November 5, 2002: US06476337 (5 worldwide citation)

An auxiliary switch activation mechanism is provided for use with a circuit breaker having an auxiliary switch and an operating mechanism for opening and closing main electrical contacts. The auxiliary switch activation mechanism includes a lever having a first end removably connectable to the opera ...


10
Roger N Castonguay, Dave S Christensen, Randy Greenberg, Girish Hassan, Dean A Robarge: Circuit interrupter operating mechanism. General Electric Company, Cantor Colburn, October 15, 2002: US06466117 (4 worldwide citation)

An operating mechanism controls and trips a separable contact structure arranged in a protected circuit. The mechanism includes a frame, a drive member pivotally coupled to the frame, a spring pivotally connecting the drive member to a drive connector, an upper link pivotally seated on the drive con ...