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:
Mar. 26, 2002
Filed:
Jun. 23, 1999
Gregory L. Malchow, Oshkosh, WI (US);
Alliance Laundry Systems LLL, Ripon, WI (US);
Abstract
A liquified gas dry-cleaning system having a pressure vessel for containing a liquid wash bath and a perforated basket rotatably supported within the pressure vessel for containing items during cleaning. For enhancing cleaning and the removal of solid particulate matter on the items to be cleaned, the basket has a plurality of radial mixing baffles fixed to the periphery of the rotary basket and a plurality of gas jet manifolds fixed to the baffles which are operable for directing pressurized jet streams of liquified gas into the basket for agitating the contained items and wash bath simultaneously with physical agitation by the mixing baffles. The dry-cleaning system has a successively operated air purge cycle prior to a dry cleaning cycle, which includes sealing the pressure chamber, introducing a gaseous form of the liquified gas which makes up the wash bath, rotating the basket so that items contained therein are turned and flexed to release at least a portion of any contained air therein, and venting the introduced gas and released air from the pressure vessel.