Superconductive, variable inductance logic circuit

Claim 1

A CRYOGENIC CIRCUIT COMPRISING, FIRST AND SECOND SUPERCONDUCTIVE CURRENT PATHS CONNECTED IN PARALLEL, MEANS FOR ESTABLISHING A BIAS CURRENT IN BOTH SAID PATHS, A VARIABLE INDUCTANCE THRESHOLD DEVICE FOR CONTROLLING THE CURRENT IN SAID SECOND PATH COMPRISING, A FIRST SUPERCONDUCTIVE CONDUCTOR CONNECTED IN SERIES WITH SAID FIRST CURRENT PATH, SAID CONDUCTOR BEING MADE OF HARD SUPERCONDUCTIVE MATERIAL, AN INPUT CONDUCTOR, MEANS FOR SUPPLYING CURRENT TO SAID INPUT CONDUCTOR, SAID INPUT CONDUCTOR HAVING A SMALL AMOUNT OF MUTUAL INDUCTANCE WITH SAID FIRST CONDUCTOR, AND A SEGMNT OF SOFT SUPERCONDUCTIVE MATERIAL LOCATED WITHIN THE MAGNETIC FIELDS PRODUCED BY SAID INPUT AND FIRST CONDUCTORS, WHEREBY CURRENT CHANGES IN SAID INPUT CONDUCTOR EFFECT NO APPRECIABLE CHANGES IN THE CURRENT IN SAID SECOND CURRENT PATH SO LONG AS THE CURRENT IN SAID INPUT CONDUCTOR IS BELOW A CERTAIN THRESHOLD AND WHEREBY CURRENT CHANGES IN SAID INPUT CONDUCTOR EFFECT AN APPRECIABLE CHANGE IN THE MAGNITUDE OF THE CURRENT IN SAID SECOND CURRENT PATH WHEN THE CURRENT IN SAID INPUT CONDUCTOR IS ABOVE SAID THRESHOLD.