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:
Aug. 15, 2023
Filed:
Mar. 10, 2022
Applicant:
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Inventors:
Takahiro Kuromoto, Nishitokyo, JP;
Yosuke Matsumura, Nishitokyo, JP;
Assignee:
SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 9/14 (2006.01);
U.S. Cl.
CPC ...
F25B 9/145 (2013.01); F25B 2309/1421 (2013.01);
Abstract
A cryocooler includes a displacer that includes a lid portion and a main body portion, a displacer drive shaft that includes a collar portion held between the lid portion and the main body portion, and a buffer that is disposed in a clearance between the collar portion and the lid portion or between the collar portion and the main body portion and includes a soft material and a hard material disposed on an opposite side to the collar portion with respect to the soft material.