Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Superconductive type
Patent
1994-09-21
1995-08-29
Picard, Leo P.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Superconductive type
62 511, 505898, H01F 722
Patent
active
054464331
ABSTRACT:
A superconductive magnet having a superconductive coil located within a thermal shield located within a vacuum enclosure. A cryocooler coldhead's first stage is in solid-conductive thermal contact with the thermal shield, and its second stage is in solid-conductive thermal contact with the superconductive coil. A magnet re-entrant support assembly includes an outer support cylinder located between the vacuum enclosure and the thermal shield and includes an inner support cylinder located between the thermal shield and the superconductive coil. The outer support cylinder's first end is rigidly connected to the vacuum enclosure, and its second end is rigidly connected to the thermal shield. The inner support cylinder's first terminus is rigidly connected to the thermal shield near the outer support cylinder's second end, and its second terminus is located longitudinally between the outer support cylinder's first and second ends and is rigidly connected to the superconductive coil.
REFERENCES:
patent: 4878351 (1989-11-01), Weber et al.
patent: 4924198 (1990-05-01), Laskaris
patent: 4935714 (1990-06-01), Vermilyea
patent: 4986078 (1991-01-01), Laskaris
patent: 5032869 (1991-07-01), Herd et al.
patent: 5034713 (1991-07-01), Herd et al.
patent: 5083105 (1992-01-01), Herd et al.
U.S. patent application Ser. No. 08/181,514, filed Aug. 5,1994, by Evangelos T. Laskaris et al., entitled "Open MRI Magnet Having A Support Structure".
Ackermann Robert A.
Laskaris Evangelos T.
Minas Constantinos
Barrera Raymond M.
Erickson Douglas E.
General Electric Company
Picard Leo P.
Webb II Paul R.
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