Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Superconductive type
Patent
1994-09-20
1998-05-26
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Superconductive type
335296, 324318, H01F 100
Patent
active
057572577
ABSTRACT:
Superconducting magnet system using a liquid helium for its operation and a permanent current switch and a system thereof applied to the superconducting magnet system employing a permanent current loop created by a superconducting material developing superconductivity when cooled. The system includes a superconducting magnet dipped in the liquid helium, the permanent current switch for driving or interrupting the superconducting magnet, and a cryostat for accommodating the superconducting magnet and the permanent current switch, and the permanent current switch is arranged over a liquid surface of the liquid helium.
REFERENCES:
patent: 4830703 (1989-05-01), Matsutani
patent: 5189386 (1993-02-01), Tada et al.
patent: 5298679 (1994-03-01), Wu et al.
patent: 5343182 (1994-08-01), Ohta
Aihara Katsuzo
Doi Toshiya
Hara Nobuhiro
Kamo Tomoichi
Mori Kazuhisa
Donovan Lincoln
Hitachi , Ltd.
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