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:
Jan. 31, 1995
Filed:
Dec. 14, 1993
Stuart B Horn, Fairfax, VA (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A cryogenic cooler system which allows continuous and uninterrupted cooling ithin the system with minimized moving parts. A compressor assembly is included with more than one compressor so that at any one time, one of the compressors is active so as to provide a working gas pressure modulated by piston action. An expander assembly includes an expander associated with each compressor where working gas pressure expansion from the active compressor is expanded within. A conduit line couples each compressor to each expander for working gas connection between each compressor and respective expander. Heat pipe is coupled at one end to each expander for the transfer a coolant fluid to a cooling plate which includes a temperature sensor. Thermal switches within each of the heat pipes control coolant fluid flow to allow the activation of another heat pipe and associated compressor when failure of the currently operating compressor occurs.