Circuit breaker device including stop means for limiting contact arm movement

Claim 1

A CIRCUIT BREAKER INCLUDING A PAIR OF COOPERATING CONTACT, A CONTACT ARM CARRYING ONE OF SAID CONTACTS, A FRAME CARRYING SAID ARM, AN OPERATING MECHANISM CONNECTED TO SAID FRAME FOR OPERATING SAID CONTACTS BETWEEN AN OPEN AND A CLOSED POSITION, SPRING MEANS SECURED TO SAID FRAME AND IN OPERATIVE ENGAGEMENT WITH A FREE END OF SAID ARM URGING SAID CONTACT ARM IN A FIRST DIRECTION TO EXERT CONTACT CLOSING PRESSURE WHEN SAID CIRCUIT BREAKER IS CLOSED, SAID SPRING MEANS POSITIONED TO ENGAGINGLY ARREST THE MOVEMENT OF SAID CONTACT ARM FREE END WHEN SAID CIRCUIT BREAKER IS BEING OPENED, AND SAID CONTACT ARM IS MOVING IN A SECOND DIRECTION OPPOSITE TO SAID FIRST DIRECTION, SAID CONTACT ARM MOVABLE IN SAID SECOND DIRECTION TO AN EXTENDED POSITION, BEYOND SAID OPEN POSITION, WHERE THE BIASING EFFECT OF SAID SPRING MEANS IS DEFEATED, STOP MEANS CARRIED BY SAID FRAME AND OPERATIVELY POSITIONED TO LIMIT AND PREVENT MOVEMENT OF SAID CONTACT ARM TO SAID EXTENDED POSITION.