Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Superconductive type
Patent
1988-11-30
1989-09-19
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Superconductive type
174 154, H01G 722
Patent
active
048685313
ABSTRACT:
In a superconducting magnet apparatus comprising a liquid helium container accommodating a superconducting magnet in liquid helium and a vacuum insulating vessel surrounding the liquid helium container via a vacuum layer, the improvement wherein power supply leads inserted into a wiring tube fitted through the vacuum insulation vessel and the liquid helium container are formed of a superconductor having a critical temperature not lower than the temperature of liquid nitrogen.
REFERENCES:
patent: 4625193 (1986-11-01), Purcell
patent: 4695675 (1987-09-01), Yamamoto
patent: 4754249 (1988-06-01), Yamamoto et al.
Kuroda Sigenori
Oue Tatsuya
Yamasaki Akinori
Harris George
Mitsubishi Denki & Kabushiki Kaisha
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