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:
Apr. 26, 2016
Filed:
Jan. 31, 2013
Applicant:
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Inventor:
Koji Yamada, Tokyo, JP;
Assignee:
SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 9/14 (2006.01); F01B 19/02 (2006.01);
U.S. Cl.
CPC ...
F01B 19/02 (2013.01); F25B 9/14 (2013.01);
Abstract
A disclosed cryogenic refrigerator includes a cylinder, a displacer reciprocally moving inside the cylinder, and an elastic unit which is provided in at least one of a pair of end regions respectively including a pair of end portions within a range of a reciprocal motion of the displacer, accumulates an elastic force when the displacer approaches the end portion, and releases the elastic force when the displacer departs from the end portion.