Combined insulating and cryogen circulating means for a superconductive solenoid

Claim 1

IN A SUPERCONDUCTING SOLENOID, THE COMBINATION COMPRISING: (A) A SOLENOIDAL COIL OF SUPERCONDUCTING CABLE WOUND TO HAVE MULTIPLE LAYERS IN PROXIMATE SPACED RELATION AND MULTIPLE TURNS IN PROXIMATE SPACED COEXTENSIVE RELATION; (B) CRYOGEN RESERVOIR MEANS; (C) A SYSTEM FOR APPLYING THE CRYOGEN IN COOLING RELATION TO SAID SOLENOID; (D) A STRUCTURAL ARRANGEMENT FOR SEPARATING AND SUPPORTING EACH LAYER OF SAID COIL, SAID ARRANGEMENT INCLUDING, A SHEET OF CONDUCTIVE MATERIAL HAVING A LOW ELECTRICAL RESISTIVITY AND FORMING A SHORT-CIRCUITED TURN, SAID SHEET DEFINING INTERSTITIAL OPENINGS NORMAL TO THE SHEET AND WHICH INTERCONNECT IN THE PLANE OF THE SHEET, FIRST AND SECOND POROUS LAYERS OF ELECTRICAL INSULATION TO EITHER SIDE OF SAID SHEET, SAID ARRANGEMENT ELECTRICALLY INSULATING ADJACENT LAYERS OF SAID COIL AND PROVIDING PASSAGES FOR FLOW OF THE CRYOGEN TO THE SUPERCONDUCTING CABLE AND FURTHER PROVIDING AN ELECTRICAL SHORT CIRCUIT PATH INDUCTIVELY COUPLED TO SAID COIL.