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:
Jul. 28, 2009
Filed:
Sep. 18, 2003
Applicant:
Tsunehiro Takeda, Ibaragi, JP;
Inventor:
Tsunehiro Takeda, Ibaragi, JP;
Assignee:
Japan Science and Technology Agency, Saitama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F17C 3/10 (2006.01); B01D 8/00 (2006.01); B01D 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention relates to a circulation type liquid helium recondensation device with a contaminant-purging function capable of vaporizing and removing contaminants deposited on the refiner in the device. Helium gas vaporizing in the liquid helium storage tankis pumped by the circulating pumpand refined in the refinerThe refiner is provided with heaters and also a discharge circuit on the inflow side. The vaporized contaminants generated when the refineris heated by the heaters are pumped by the circulating pumpor the dedicated purge pumpand vented to the atmosphere via said discharge circuit.