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:
Sep. 15, 1987
Filed:
Sep. 25, 1986
Lewis Tyree, Jr, Oak Brook, IL (US);
Liquid Carbonic Corporation, Chicago, IL (US);
Abstract
A plurality of work stations may be cooled and temperature-controlled with subcooled liquid CO.sub.2 without a plurality of mechanical units for cooling CO.sub.2 and high capital costs resulting therefrom. The system includes a plurality of spaced-apart enclosures to be cooled, each enclosure having an associated tank containing subcooled liquid CO.sub.2 to be directed into the enclosure for cooling it and then to exhaust. The associated tanks are connected to a source of high pressure CO.sub.2 such as a large storage vessel which supplies CO.sub.2 for the associated tanks and for cooling the associated tanks as by expanding liquid CO.sub.2 in the vicinity of the associated tank. After expansion, CO.sub.2 vapor is directed to a reservoir or directly back to the storage vessel via a compressor. The reservoir contains CO.sub.2 slush and collects vapor CO.sub.2 used in the cooling process of a multiplicity of duplicate associated tanks, thus serving as a sink for the collection of CO.sub.2 vapor to be ultimately returned to the storage vessel.