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. 14, 1994
Filed:
Jun. 17, 1993
Roger L Hoffman, Louisville, KY (US);
Joseph D Tobbe, Louisville, KY (US);
Gregory O Miller, Louisville, KY (US);
General Electric Company, Louisville, KY (US);
Abstract
A dishwashing machine includes a wash chamber and spray distribution mechanism to spray fluid over articles in the chamber. A recirculation sump at the bottom of the chamber receives fluid from the chamber and a first pump, driven by a relatively large motor, draws fluid from the sump and discharges it to the spray mechanism. A filter is positioned to remove soil particles from the recirculated fluid and a collection chamber collects filtered soil particles. The collection chamber is connected to a drain through a first one way valve. A drain pump, driven by a relatively small motor, is connected between the lower portion of the recirculation sump and the collection chamber. Another one way valve permits flow from the recirculation sump to the collection chamber while preventing reverse flow. Operation of the drain pump substantially completely evacuates fluid from the wash chamber and the sump through the collection chamber to the drain and concurrently discharges soil particles from the collection chamber to the drain.