Patent ID: 8525054

Claim:
A circuit breaker comprising: a base; a cross shaft operably coupled to said base, said cross shaft rotatable between a first position and a second position; a first linkage coupled to said base and arranged transverse to said cross shaft, said first linkage rotatable between a third position and a fourth position; a second linkage operably coupled to said first linkage, said second linkage translating between a fifth position and a sixth position in response to said first linkage rotating between said third position and said fourth position; a cam surface operably coupled between said cross shaft and said first linkage; an opening latch shaft coupled between said second linkage and a contact arm assembly, wherein said opening latch shaft moves said contact arm assembly from a closed position to an open position in response to said second linkage translating between said fifth position and said sixth position; a first roller coupled to said first linkage adjacent said cam surface; and a second roller coupled to said first linkage adjacent said second linkage.