Air blast circuit breaker

Claim 1

A GAS BLAST CIRCUIT BREAKER INTERRUPTER STRUCTURE COMPRISING A CONDUCTIVE HOUSING, A HIGH PRESSURE GAS SUPPLY PERMANENTLY CONNECTED TO SAID CONDUCTIVE HOUSING TO MAINTAIN THE INTERIOR OF SAID CONDUCTIVE HOUSING AT HIGH PRESSURE, FIRST AND SECOND STATIONARY CONTACTS SUPPORTED ON THE INTERIOR OF SAID CONDUCTIVE HOUSING AND IN INSULATED RELATION WITH RESPECT TO EACH OTHER AND TO SAID CONDUCTIVE HOUSING, FIRST AND SECOND HOLLOW MOVABLE CONTACTS POSITIONED WITHIN SAID CONDUCTIVE HOUSING NORMALLY ENGAGING SAID FIRST AND SECOND STATIONARY CONTACTS, AND MOUNTED FOR MOVEMENT OUT OF ENGAGEMENT THEREWITH, A RESISTOR PERMANENTLY ELECTRICALLY CONNECTED BETWEEN SAID FIRST STATIONARY CONTACT AND SAID FIRST MOVABLE CONTACT, AND A BLAST VALVE IN THE WALL OF SAID CHAMBER; SAID SECOND CONTACTS BEING CONNECTED IN SERIES WITH SAID FIRST CONTACTS; SAID FIRST AND SECOND HOLLOW CONTACTS DEFINING RESPECTIVE FLOW PATHS FROM INTERIOR PORTIONS OF SAID CONDUCTIVE HOUSING TO THE INTERIOR SURFACE OF SAID BLAST VALVE WHEREBY HIGH PRESSURE GAS FLOWS THROUGH SAID FIRST AND SECOND HOLLOW MOVABLE CONTACTS WHEN SAID BLAST VALVE IS OPENED; AND AN OPERATING MEANS CONNECTED TO SAID FIRST AND SECOND HOLLOW MOVABLE CONTACTS FOR MOVING SAID FIRST ANS SECOND HOLLOW CONTACTS BETWEEN ENGAGED AND DISENGAGED POSITIONS WITH RESPECT TO SAID FIRST AND SECOND STATIONARY CONTACTS RESPECTIVELY.