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:
Oct. 04, 2016
Filed:
May. 16, 2013
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Tatsuo Koizumi, Tokyo, JP;
SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A method of manufacturing a cryogenic regenerator includes the steps of supplying helium gas to a metallic helium gas sealing tube having a front end portion and a rear end portion that are open to replace air within the tube; sealing the rear end portion of the helium gas sealing tube; cooling the helium gas sealing tube and filling additional helium gas into the cooled helium gas sealing tube from a helium gas supplying unit; sealing the front end portion of the helium gas sealing tube after the helium gas sealing tube is filled with the additional helium gas; and winding the helium gas sealing tube into a coil structure around a core material to fabricate a helium gas sealing tube wound structure.