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. 01, 2007
Filed:
Dec. 30, 2002
Thomas Joseph Fyvie, Schenectady, NY (US);
Darren Lee Hallman, Clifton Park, NY (US);
Teresa Grocela Rocha, Waterford, NY (US);
Philip Alexander Shoemaker, Scotia, NY (US);
Thomas Joseph Fyvie, Schenectady, NY (US);
Darren Lee Hallman, Clifton Park, NY (US);
Teresa Grocela Rocha, Waterford, NY (US);
Philip Alexander Shoemaker, Scotia, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
Method and apparatus for recovering and purifying a solvent used in an article cleaning appliance are provided. The method allows passing solvent-based cleaning fluid from a wash basket through a coarse filter configured to remove relatively large particulates from the cleaning fluid. The method further allows passing cleaning fluid from the coarse filter through a particulate filter configured to remove relatively fine particulates from the cleaning fluid. An aqueous phase that may be present in the cleaning fluid is separated by decanting and coalescing through a separator/filter assembly. The cleaning fluid may then be passed through a regeneration cartridge for removing any water that may remain in the cleaning fluid, and for adsorbing organic contaminants that may be present in the cleaning fluid. Recovered solvent may be stored in a tank for subsequent use in a cleaning process performed by the appliance.