Method of mass producing superconducting persistent current ring

Details Method of mass producing superconducting persistent current ring Method of mass producing superconducting persistent current ring

1989-03-13

1990-05-22

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Superconductive type

335284, H01F 722

Patent

active

049280813

ABSTRACT:
Superconducting persistent current rings are mass produced by passing each uperconducting ring through a tapered magnetic field that is tapered in strength so that when each ring passes through the maximum magnetic field of the tapered magnetic field which is above the critical field of the tapered magnetic field the superconducting ring becomes normal thereby admitting all of the flux to which its cross section is exposed. When the ring is passed to a region of field lower in strength than the critical field, the ring becomes superconducting again and traps the flux to which its cross section is exposed.

REFERENCES:
patent: 3158792 (1964-11-01), Swartz et al.
patent: 3158794 (1964-11-01), Swartz
patent: 3609611 (1971-09-01), Parnell
patent: 3624572 (1971-11-01), Mallinson

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