The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 22, 1987
Filed:
Nov. 26, 1986
Applicant:
Inventors:
Katsuyoshi Toyoda, Kobe, JP;
Takashi Murai, Kobe, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F17C / ;
U.S. Cl.
CPC ...
62 50 ; 62383 ;
Abstract
A cryogenic vessel comprises a liquid helium tank including a substantially flat top wall and which contains therein a cryogen-cooled electrical apparatus. The helium tank is surrounded by a radiation shield provided with a cooling tube through which evaporated helium gas flows and the radiation shield is then surrounded by an outer housing. In order to evenly cool the top wall of the cryogen tank, it is provided with a heat conducting plate, a cooling coil or a plurality of evenly distributed inlets for substantially evenly cooling it.