Circuit breaker with improved trip-device enclosure

Claim 1

A MULTI-POLE CIRCUIT BREAKER COMPRISING A FIRST INSULATING HOUSING, A CIRCUIT-BREAKER MECHANISM SUPPORTED WITHIN SAID FIRST HOUSING AND COMPRISING A PLURALITY OF POLE UNITS, EACH POLE UNIT COMPRISING A PAIR OF CONTACTS, MEANS RELEASABLE TO EFFECT SIMULTANEOUS OPENING OF ALL OF SAID PAIRS OF CONTACTS, A MULTI-POLE TRIP DEVICE SUPPORTED WITHIN SAID FIRST HOUSING AND COMPRISING TRIP MEANS FOR EACH OF SAID POLE UNITS, EACH OF SAID TRIP MEANS BEING CONSTRUCTED TO OPERATE UPON THE OCCURRENCE OF CERTAIN CURRENT CONDITIONS TO EFFECT RELEASE OF SAID RELEASABLE MEANS, A SECOND HOUSING WITHIN SAID FIRST HOUSING AND COMPRISING AN INSULATING BASE AND AN INSULATING COVER COOPERATING WITH SAID BASE TO ENCLOSE SAID TRIP DEVICE, SAID SECOND HOUSING COMPRISING A DIFFERENT COMPARTMENT FOR EACH OF SAID TRIP MEANS AND INSULATING BARRIER MEANS BETWEEN ADJACENT COMPARTMENTS, EACH OF SAID BARRIER MEANS COMPRISING A FIRST PARTITION MOLDED INTEGRAL WITH SAID BASE AND FORMED WITH A BEVELED SURFACE AT THE END THEREOF, EACH OF SAID BARRIER MEANS COMPRISING A SECOND PARTITION MOLDED INTEGRAL WITH SAID COVER AND FORMED WITH A BEVELED SURFACE AT THE END THEREOF, AND THE BEVELED SURFACE OF EACH OF SAID FIRST PARTITIONS ENGAGING THE BEVELED SURFACE OF THE ASSOCIATED SECOND PARTITION.