Panelboard comprising an insulating support and a circuit breaker

Claim 1

A PANELBOARD ASSEMBLY COMPRISING, IN COMBINATION, AN ELONGATED INSULATING SUPPORT BLOCK HAVING THREE PARALLEL TRANSVERSELY EXTENDING SLOTS IN THE BACK THEREOF, SAID SUPPORT BLOCK BEING MOUNTED OVER THREE PARALLEL TRANSVERSELY EXTENDING BUS BARS WITH EACH OF SAID BUS BARS BEING DISPOSED IN ONE OF SAID SLOTS, SAID SUPPORT BLOCK HAVING THREE PARALLEL ELONGATED CAVITIES IN THE FRONT THEREOF WHICH CAVITIES EXTEND IN A DIRECTION GENERALLY NORMAL TO THE DIRECTION OF SAID SLOTS AND BUS BARS, A DIFFERENT CONDUCTING CONNECTOR DISPOSED IN EACH OF SAID THREE CAVITIES WITH EACH OF THE THREE CONDUCTING CONNECTORS BEING CONNECTED TO A DIFFERENT ONE OF SAID THREE BUS BARS, TWO CIRCUIT BREAKERS ON SAID SUPPORT BLOCK IN A SPACED ALIGNED END-TO-END RELATIONSHIP ALIGNED IN A DIRECTION NORMAL TO THE DIRECTION OF SAID SLOTS AND BUS BARS AND WITH THE LOAD END OF EACH OF SAID CIRCUIT BREAKERS BEING SUPPORTED ON SAID SUPPORT BLOCK AND WITH THE LINE ENDS OF SAID CIRCUIT BREAKERS BEING IN A SPACED FACE-TO-FACE RELATIONSHIP, EACH OF SAID CIRCUIT BREAKERS COMPRISING A POLE UNIT COMPRISING AN INSULATING COMPARTMENT, EACH OF SAID INSULATING COMPARTMENTS COMPRISING A BOTTOM AND A FRONT OPPOSITE THE BOTTOM, A SEPARATE PAIR OF COOPERABLE CONTACTS DISPOSED WITHIN EACH OF SAID INSULATING COMPARTMENTS, EACH OF SAID INSULATING COMPARTMENTS HAVING OPENING MEANS THEREIN AT THE FRONT THEREOF, A SEPARATE OPERATING HANDLE EXTENDING THROUGH THE OPENING MEANS IN THE FRONT OF EACH OF SAID INSULATING COMPARTMENTS, EACH OF SAID OPERATING HANDLES BEING OPERABLE TO OPEN AND CLOSE THE ASSOCIATED CONTACTS, EACH OF SAID INSULATING COMPARTMENTS HAVING OPENING MEANS AT THE BOTTOM THEREOF IN PROXIMITY TO THE LINE END OF THE ASSOCIATED CIRCUIT BREAKER, A SEPARATE UNITARY GENERALLY RIGID LINETERMINAL CONDUCTOR SUPPORTED IN EACH OF SAID INSULATING COMPARTMENTS AND PROTRUDING THROUGH THE OPENING MEANS IN THE BOTTOM OF THE ASSOCIATED INSULATING COMPARTMENT, IN EACH OF SAID INSULATING COMPARTMENTS ONE OF THE CONTACTS BEING SUPPORTED ON THE INNER PART OF THE ASSOCIATED UNITARY GENERALLY RIGID LINE-TERMINAL CONDUCTOR, EACH OF SAID UNITARY GENERALLY RIGID LINE-TERMINAL CONDUCTORS AT THE OUTSIDE OF THE ASSOCIATED INSULATING COMPARTMENT EXTENDING BELOW THE LOWERMOST PART OF THE ASSOCIATED INSULATING COMPARTMENT AND BEING SHAPED TO PROVIDE AN EXTERNAL END PART THEREOF DISPOSED ALONG A PLANE GENERALLY PARALLEL TO THE BOTTOM OF THE ASSOCIATED INSULATING COMPARTMENT, EACH OF SAID EXTERNAL END PARTS COMPRISING A CONNECTING PART, EACH OF SAID CONNECTING PARTS EXTENDING AWAY FROM THE ASSOCIATED INSULATING COMPARTMENT BELOW THE LOWERMOST PART OF THE ASSOCIATED INSULATING COMPARTMENT IN A DIRECTION TOWARD THE LINE END OF THE OTHER OF SAID CIRCUIT BREAKERS, EACH OF SAID CONNECTING PARTS HAVING OPENING MEANS THEREIN WHICH OPENING MEANS IS DISPOSED OUTSIDE THE FRONTELEVATIONAL-VIEW DIMENSIONS OF THE ASSOCIATED INSULATING COMPARTMENT AND WHICH OPENING MEANS IS DISPOSED IN THE SPACE BETWEEN SAID LINE ENDS OF SAID CIRCUIT BREAKERS, EACH OF SAID EXTERNAL END PARTS RESTING ON ONE OF SAID CONDUCTING CONNECTORS WHEREBY EACH OF SAID END PARTS ELECTRICALLY CONNECTS THE ASSOCIATED POLE UNIT WITH THE ASSOCIATED CONDUCTING CONNECTOR AND PROVIDES PHYSICAL SUPPORT FOR THE LINE END OF THE ASSOCIATED POLE UNIT ON THE ASSOCIATED CONDUCTING CONNECTOR, SEPARATE SECURING MEANS FOR EACH OF SAID POLE UNITS, EACH OF SAID SEPARATE SECURING MEANS BEING DISPOSED IN THE ASSOCIATED OPENING MEANS IN THE ASSOCIATED CONNECTING PART AND REMOVABLY SECURING THE ASSOCIATED UNITARY GENERALLY RIGID LINE-TERMINAL CONDUCTOR TO THE ASSOCIATED CONDUCTING CONNECTOR, AND EACH OF SAID SEPARATE SECURING MEANS BEING ACCESSIBLE FOR OPERATION BY AN ELONGATED GENERALLY STRAIGHT SCREWDRIVER-TYPE TOOL FROM THE FRONT OF SAID PANELBOARD ASSEMBLY IN THE SPACE BETWEEN SAID LINE ENDS OF SAID CIRCUIT BREAKERS.