Incremental electrical method and apparatus for energizing high current superconducting electromagnetis

Claim 1

APPARATUS FOR THE INCREMENTAL ENERGIZING OF SUPERCONDUCTING ELECTROMAGNETS COMPRISING A CRYOSTAT CONTAINING A COOLANT, A SUPERCONDUCTIVE ELECTROMAGNET, A FIRST SELECTIVELY-CONTROLLED ELECTRIAL SWITCH CONNECTED IN PARALLEL WITH THE SUPER-CONDUCTIVE ELECTROMAGNET, AN AUXILIARY SUPERCONDUCTING COIL SERIALLY INCLUDING A SECOND SELECTIVELY CONTROLLED ELECTRICAL SWITCH, ONE END OF THE AUXILIARY SUPERCONDUCTING COIL BEING CONNECTED TO ONE TERMINAL OF SAID FIRST SWITCH, THE REMAINING END OF THE AUXILIARY SUPERCONDUCTING COIL BEING CONNECTED TO THE OTHER TERMINAL ON THE FIRST SWITCH, AN ENERGY INJECTING ELECTOMAGNET SUPPORTED IN AN INDUCTIVE RELATIONSHIP WITH THE AUXILIARY SUPERCONDUCTING COIL, SAID SUPERCONDUCTIVE ELECTROMAGNET, FIRST SWITCH, AUXILIARY SUPERCONDUCTING COIL INCLUDING ITS SECOND SWITCH BEING IMMERSED IN COOLANT HAVING A TEMPERATURE BELOW THE CRITICAL TEMPERATURE OF THE SUPERCONDUCTORS IN THE SUPERCONDUCTIVE ELECTROMAGNET AND IN THE SUPERCONDUCTIVE AUXILIARY COIL, WHEREBY WHEN THE FIRST SWITCH IS CLOSED AND THE SECOND SWITCH IS OPEN AND SAID ENERGY INJECTING ELECTROMAGNET IS EMNERGIZED, AND BOTH SWITCHES ARE CLOSED WHEN THE INJECTING ELECTROMAGNET IS D-ENERGIZED, AN INDUCED CURRENT CIRCULATES IN SAID AUXILIARY COIL, AND THE MAGNETIC LINES CORRESPONDING THERETO ARE SHARED WITH THE SUPERCONDUCTIVE ELECTROMAGNET WHEN SAID FIRST SWITCH IS OPENED, AND SAID APPARATUS IS PREPARED FOR REPETITIVELY INJECTING ENERGY BY CLOSING SAID FIRST SWITCH AND OPENING THE SECOND SWITCH TO PERMIT ENERGIZING OF SAID INJECTING ELECTOMAGNET AND THEN CLOSING SAID SECOND SWITCH AFTER THE INJECTING ELECTROMAGNET IS ENERGIZED IN READINESS FOR THE NEXT CYCLE.