Single use circuit breaker

Claim 1

A CIRCUIT BREAKER COMPRISING A TUBULAR HOUSING, TWO TERMINAL CONTACTS CONNECTABLE TO A CONTROL CIRCUIT AND FIXEDLY MOUNTED IN SAID HOUSING, A FRANGIBLE CONDUCTOR BRIDGING AND TERMINAL CONTACTS, AN ACTUATING MEMBER LENGTHWISE MOVABLE IN SAID HOUSING FROM AN INACTIVE POSITION SEPARATED FROM SAID TERMINAL CONTACTS INTO A CIRCUIT BREAKING POSITION IN WHICH THE ACTUATING MEMBER CAUSES FRACTURING OF SAID BRIDGING CONDUCTOR, A PYROTECHNICAL CHARGE DISPOSED IN SAID HOUSING ON THE SIDE OF THE ACTUATING MEMBER REMOTE FROM SAID TERMINAL CONTACTS, A FRANGIBLE PARTITION WALL IN THE HOUSING INTERPOSED BETWEEN SAID TERMINAL CONTACTS AND SAID ACTUATING MEMBER TO PREVENT ACCIDENTAL DISPLACEMENT OF THE LATTER INTO ITS CIRCUIT BREAKING POSITION, AND AN ACTIVATING MEANS FOR IGNITING SAID CHARGE, THE PRESSURE GENERATED UPON IGNITION OF THE CHARGE IN SAID HOUSING CAUSING MOVEMENT OF THE ACTUATING MEMBER INTO ITS CIRCUIT BREAKING POSITION.