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:
Oct. 19, 2004
Filed:
Dec. 12, 2003
John F. Dain, Hollister, CA (US);
Other;
Abstract
For high reliability through redundancy, in a thermal chamber, heat exchange tubes are configured in multiple parallel runs. Typically three tubes are attached side-by-side in a strip which is formed into folded-back horizontal rows to be built into or attached to the walls of the chamber. In a freezer, each tube can serve independently as an evaporator when connected to a compressor/condenser source. Versatile source interfacing is provided by two valve-manifold routing units, one at each end of the multi-tube strip, enabling easy tube substitution in case of failure, as well as facilitating source-swapping, networking, defrosting and refrigerant operations such as purging, flushing, replenishing, changing or replacement, all without interrupting the required cooling process or affecting the chamber temperature. The multi-tube strip and valve-manifolds enhance the reliability of thermal systems such as ultra-low temperature biomedical freezers entrusted with critical at-risk payloads, and assist owner-operators in maintaining such systems fully operational with minimal need for outside repair expertise.