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. 17, 1985
Filed:
Dec. 15, 1983
John S Andrepont, Lisle, IL (US);
Raymond Korzonas, Chicago, IL (US);
Chicago Bridge & Iron Company, Oak Brook, IL (US);
Abstract
A freeze concentrator of the shell and tube type containing a pool of liquid cryogen within the shell, the concentrator being adapted to maintain a constant temperature within the liquid cryogen. The temperature control comprises a flash tank located above the level of liquid cryogen within the concentrator, to which the vapors evolved from the boiling cryogen are passed. The flash tank is provided with a condenser for condensing the cryogen vapor which enters the flash tank, the resulting liquid cryogen collecting within the flash tank and being recycled therefrom by gravity to the pool of cryogen in the exchanger.