Enclosed gas isolated and operated electrical supply and distribution switching-station with one or more gas blast power switches

Claim 1

IN AN ENCLOSED ELECTRICAL SWITCHING STATION, THE COMBINATION COMPRISING A CASING, AT LEAST ONE POWER SWITCH WITHIN SAID CASING, A PLURALITY OF SWITCHING DEVICES IN SAID CASING, A BUS BAR SYSTEM IN SAID CASING CONNECTING SAID SWITCHING DEVICES WITH EACH OTHER AND WITH SAID POWER SWITCH, SAID SWITCHING DEVICES SERVING TO CONTROL A PLURALITY OF FEED AND DELIVERY CIRCUITS AND THE NUMBER OF SAID CIRCUIT BEING GREATER THAN THE NUMBER OF SAID POWER SWITCHES, SAID CASING BEING FILLED WITH A PRESSURIZED INSULATING GEASOUS FLUID, A STORAGE TANK FOR SAID GASEOUS FLUID, A FIRST CONDUIT INCLUDING A FIRST CONTROL VALVE THEREIN AND WHICH CONNECTS AN OUTLET FROM SAID STORAGE TANK WITH THE INTERIOR OF SAID CASING FOR LEADING THE GASEOUS FLUID FROM SAID STORAGE TANK TO THE VICINITY OF THE CONTACTS OF SAID POWER SWITCH FOR EXTINGUISHING TH ARC DRAWN BETWEEN SAID CONTACTS, ACTUATING MEANS BEING POWERED BY THE INDIVIDUAL TO SAID POWER SWITCH AND EACH OF SAID SWITCHING DEVICES, EACH SAID ACTUATING MEANS BEING POWERED BY THE PRESSURIZED GASEOUS FLUID WITHIN SAID CASING AND BEING INDIVIDUALLY CONTROLLED BY CONTROL DEVICE, A SECOND CONDUIT INCLUDING A COMPRESSOR THEREIN CONTROLLED BY THE PRESSURE OF THE GASEOUS FLUID WITHIN SAID CASING WITH RETURN SERVES TO CONNECT AN OUTLET FROM SAID CASING WITH A RETURN INLET TO SAID STORAGE TANK, A THIRD CONDUIT INCLUDING A SECOND CONTROL VALVE THEREIN AND WHICH SERVES TO CONNECT AN OUTLET FROM SAID STORAGE TANK WITH THE INTERIOR OF SAID CASING, SAID SECOND VALVE BEING NORMALLY CLOSED, AND MEANS RESPONSIVE TO A PREDETERMINED INCREASE IN TEMPERATURE OF THE GASEOUS FLUID WITHIN SAID CASING FOR OPENING SAID SECOND VALVE AND STARTING SAID COMPRESSOR TO EXTABLISH A CIRULATION OF GASEOUS FLUID BETWEEN SAID STORAGE TANK AND CASING BY-PASSING SAID FIRST CONDUIT FOR COOLING SAID GASEOUS FLUID WITHIN SAID CASING AS WELL AS SAID POWER SWITCH AND SWTICHING DEVICES.