1
Roger N Castonguay, Dennis J Doughty, Dean A Robarge, Dave S Christensen, James L Rosen, Randall L Greenberg, Stefan Kranz, Mark Culler, Thomas Papallo: Rotary contact circuit breaker venting arrangement including current transformer. General Electric Company, Carl B Horton, Cantor Colburn, March 14, 2000: US06037555 (29 worldwide citation)

A rotary contact circuit breaker having a venting arrangement to vent gasses operated by a short circuit interruption to a location substantially above the load strap of the breaker whereby electrical components are not damaged by the gasses and ionized gasses from different phases are conveyed in d ...


2
Dennis J Doughty, Dave S Christensen: Arc runner retaining feature. General Electric Company, Carl B Horton, Cantor Colburn, October 9, 2001: US06300586 (13 worldwide citation)

An arc runner is fixedly retained on a load (or line) strap without hardware and without employing a mechanical operation. Either the arc runner or the strap has features, such as legs or holes, which engage notches or pins on either the strap or the arc runner and cause the arc runner to be retaine ...


3
Roger N Castonguay, Randall L Greenberg, Dean A Robarge, Dave S Christensen: Rotary contact assembly for high ampere-rated circuit breakers. General Electric Company, Carl B Horton, Cantor Colburn, July 10, 2001: US06259048 (13 worldwide citation)

A circuit breaker rotary contact assembly employs a common pivot between the rotor assembly and the rotary contact arm. A pair of off-center expansion springs directly engage the rotor at one end and engage the rotary contact arm via a linkage arrangement at an opposite end thereof.


4
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 ...


5
Dave S Christensen, Roger N Castonguay, James Rosen, Francesco DeVizzi: Auxiliary switch mounting configuration for use in a molded case circuit breaker. General Electric Company, Carl B Horton, Cantor Colburn, May 15, 2001: US06232859 (10 worldwide citation)

A molded case circuit breaker assembly using auxiliary switches to perform indication and control functions. The circuit breaker assembly having at least one pole comprising a stationary and a moveable contact where the moveable contact is connected to a moveable contact arm which is activated by a ...


6
Roger N Castonguay, Randall L Greenberg, Dave S Christensen: Circuit breaker mechanism for a rotary contact system. General Electric Company, Carl B Horton, Damian G Wasserbauer, Dave S Christensen, July 11, 2000: US06087913 (9 worldwide citation)

A rotary contact circuit breaker employs a crank to couple a switching mechanism to the rotary contact pole structure. The use of a crank allows for the mechanism and pole structure the individually optimized without effecting the performance of the other. In particular the crank allows for a mechan ...


7
Roger Castonguay, Dave S Christensen, Dean Robarge, Randy Greenberg: Molded case circuit breaker base and mid-cover assembly. General Electric Company, Cantor Colburn, April 23, 2002: US06377144 (8 worldwide citation)

A molded case circuit breaker housing employs a tri-furcated design that imparts structural stability and manufacturing efficiency. The design provides a separate top cover, mid-cover and base wherein the mid-cover wall height to base wall height ratio is such that the stresses imparted upon the bas ...


8
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 ...


9
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 ...


10
Roger N Castonguay, Dean A Robarge, Dave S Christensen: Circuit breaker rotary contact assembly locking system. General Electric Company, Carl B Horton, Dave S Christensen, July 4, 2000: US06084489 (6 worldwide citation)

The circuit breaker is characterized by separable contacts operable between a closed and an open position a contact arm having a latching surface and a latch arranged to engage the latching surface when the contacts are blown-open under short-circuit conditions. The arrangement of the latch allows f ...