Thermal current responsive circuit breaker

Claim 1

A THREE-POLE CIRCUIT BREAKER, EACH POLE INCLUDING OVERCURRENT RESPONSIVE MEANS AND FIXED AND MOVABLE CONTACT MEANS, A SINGLE LATCHING ASSEMBLY COMMON TO ALL OF SAID POLES, SAID LATCHING ASSEMBLY INCLUDING FIRST AND SECOND INDEPENDENT PIVOTAL LATCHING MEMBERS, FIRST AND SECONG INDEPENDENTLY PIVOTAL HOLDING MEMBERS FOR RESPECTIVELY MAINTAINING SAID FIRST AND SECOND LATCHING MEMBERS IN A LATCHED POSITION, BIASING MEANS RESILIENTLY URGING SAID SECOND LATCHING MEMBER INTO RESILIENT ENGAGEMENT WITH SAID FIRST HOLDING MEMBER FOR RESILIENTLY URGING SAID FIRST HOLDING MEMBER TOWARD PIVOTAL MOVEMENT IN A LATCH RELEASING DIRECTION WHEN SAID SECOND LATCH MEMBER IS RELEASED FROM ITS LATCHED POSITION AND ALLOWING SAID FIRST HOLDING MEMBER TO RETURN TO ITS HOLDING POSITION WHEN SAID SECOND LATCHING MEMBER IS IN ITS LATCHED POSITION, AN OVERCENTER ASSEMBLY COUPLED TO SAID FIRST LATCHING MEMBER AND TO EACH OF SAID MOVABLE CONTACTS FOR SIMULTANEOUSLY MOVING SAID CONTACTS BETWEEN OPEN AND CLOSED POSITIONS, AN OPERATING MEMBER MOVABLE FROM A FIRST POSITON TO A SECOND POSITION TO LATCH EACH OF SAID LATCHING MEMBERS ON ITS ASSOCIATED HOLDING MEMBER, MOVEMENT OF SAID OPERATING MEMBER FROM SAID SECOND POSITION TO ITS FIRST POSITION PLACING SAID OVERCENTER MEANS IN A RIGID CONDITION TO CLOSE SAID MOVABLE CONTACTS, COMMON TRIP MEANS COUPLED TO SAID SECOND HOLDING MEMBER AND TO EACH OF SAID OVERCURRENT RESPONSIVE MEANS SO THAT THE OCCURRENCE OF AN OVERLOAD CURRENT THROUGH ANY OF SAID POLES WILL PIVOT SAID SECOND HOLDING MEMBER TO RELEASE SAID SECOND LATCHING MEMBER FOR ROTATION BY SAID BIASING MEANS TO ROTATE SAID FIRST HOLDING MEMBER OUT OF LATCHING ENGAGEMENT WITH SAID FIRST LATCHING MEMBER WHEREBY SAID OVERCENTER MEANS IS RELEASED FOR SIMULTANEOUS OPENING OF SAID MOVABLE CONTACTS.