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:
May. 09, 1995
Filed:
Dec. 06, 1993
Robert J Iliff, Oakley, CA (US);
James D Mitchell, Alamo, CA (US);
Daniel T Carty, Danville, CA (US);
James R Latham, Livermore, CA (US);
Stephen B Kong, Alameda, CA (US);
The Clorox Company, Oakland, CA (US);
Abstract
A dry cleaning system particularly suited for employing supercritical CO.sub.2 as the cleaning fluid consisting of a sealable cleaning vessel containing a rotatable drum adapted for holding soiled substrate, a cleaning fluid storage vessel, and a gas vaporizer vessel for recycling used cleaning fluid is provided. The drum is magnetically coupled to a motor so that it can be rotated during the cleaning process. The system is adapted for automation which permits increased energy efficiency as the heating and cooling effect associated with CO.sub.2 gas condensation and expansion can be channeled to heat and cool various parts of the system.