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. 14, 1981
Filed:
Apr. 16, 1980
Peter Durenec, Annandale, VA (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A cryogenic cooler having multistage telescoping in-line regenerator-dispers in which the regenerator-displacer stages are progressively smaller from a pressure wave input end to the output cold end. Each stage from the input toward the output functions to produce a plurality of precooled expansion volumes for progressively lowering the temperatures at the input environment of each subsequent regenerator-displacer stage to maintain a temperature of about 8.degree. Kelvin at the output end of the cooler. Cooling concepts in which the multistage telescoping in-line regenerator-displacer may be used are the integral cycle, the split cycle, and dual fluidly control motion cycle.