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:
Jun. 07, 1988
Filed:
Aug. 07, 1987
Applicant:
Inventor:
Christian Ehrsam, Winterthur, CH;
Assignee:
Sulzer Brothers Limited, Winterthur, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; C02F / ;
U.S. Cl.
CPC ...
62532 ; 62123 ;
Abstract
Ethanol is admixed with a compressed vapor in an ice generator, and the mixture is then condensed by indirect heat exchange with a coolant in a chamber. The condensate is collected in a bottom chamber of the ice generator and then supplied to a scraper heat exchanger where primary ice crystals are generated. The ethanol is washed out of the ice crystal suspension in a counterflow washer and the primary ice crystal suspension delivered to a freeze drying chamber where the secondary ice crystal suspension is then generated to form the end product. This method permits the continuous generation of crystalline ice without interruptions for defrosting.