Patent ID: 7368677
Filing Date: 2008-05-06
Classification: H01H

Abstract:
1. A spring offset device structured to extend between a circuit breaker frame assembly and a trip mechanism, said trip mechanism having a banana link and hatchet plate, said frame assembly supporting a hatchet pin assembly, said banana link being an elongated member having a first end and a second end, said second end coupled to said hatchet plate, said hatchet plate being pivotally mounted on said hatchet pin assembly and structured to move between a closed position, an open position, and a reset position, said banana link also structured to move with said hatchet plate into a corresponding closed position, a open position, and a reset position, said spring offset device comprising: an offset member disposed on said banana link; a spring anchor disposed on said frame assembly, said spring anchor spaced from said hatchet pin assembly; a spring extending between said offset member and said spring anchor; wherein said offset member and said spring anchor are structured so that when said hatchet plate is in said closed position, said spring creates an opening force on said hatchet plate biasing said hatchet plate toward the open position, and when said hatchet plate is in the reset position, said spring creates a closing force on said hatchet plate biasing said hatchet plate toward said reset position.