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. 15, 1981
Filed:
Oct. 29, 1979
Applicant:
Inventor:
Domenico S Sarcia, Carlisle, MA (US);
Assignee:
Oerlikon-Buhrle U.S.A. Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62-6 ; 13762537 ;
Abstract
A self-regulating cryogenic refrigerator is disclosed which features a displacer and novel refrigerant flow control means comprising a slide valve which is movable by the displacer and coacts therewith to control movement of refrigerant into and out of a chamber whose volume varies with movement of the displacer.