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:
Aug. 16, 1983
Filed:
Dec. 02, 1981
David C Hinman, Tarrytown, NY (US);
Valery B Zemelman, Wilton, CT (US);
William R Ramakka, Little Ferry, NJ (US);
General Foods Corporation, White Plains, NY (US);
Abstract
The present invention provides an improved process for preparing carbonated ice directly from finely divided water ice or snow. According to the process, water ice is contacted with carbon dioxide gas at a temperature within the range of from about -20.degree. C. to about 0.degree. C. at a pressure of about 0.3 times the carbon dioxide vapor pressure at the respective temperatures, the pressure being at least sufficient to cause formation of carbon dioxide hydrate, but insufficient to liquefy the carbon dioxide, at the temperature of contact; and maintaining contact for a period of time effective to form carbon dioxide hydrate in the ice. At the preferred temperatures of from -14.degree. to -2.degree. C., the reaction rate increases dramatically.