Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Superconductive type
Patent
1986-06-04
1987-11-17
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Superconductive type
174 15CA, H01F 722
Patent
active
047076763
ABSTRACT:
A superconducting magnet comprising a superconducting coil for generating a magnetic field when current flows therethrough and a vacuum heat insulation vessel storing and maintaining therein the coil at a cryogenic temperature, said vacuum heat insulation vessel having a part, such as a cylindrical outer wall, made of a ferromagnetic material which provides a path of high magnetic permeability for outwardly-directed flux lines of the magnetic field generated by said coil to reduce the spread of the flux lines and weaken the magnetic field outside the vessel.
REFERENCES:
patent: 4484814 (1984-11-01), Kawaguchi et al.
patent: 4490675 (1984-12-01), Knuettel et al.
patent: 4587490 (1986-05-01), Muller et al.
patent: 4590428 (1986-05-01), Muller et al.
Kataoka Takeshi
Matsumoto Takahiro
Saitou Yosio
Takechi Moriaki
Harris George
Mitsubishi Denki & Kabushiki Kaisha
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