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. 03, 2005
Filed:
Jul. 09, 2003
Larry T. Bashark, St. Joseph, MI (US);
Larry T. Bashark, St. Joseph, MI (US);
Whirlpool Corporation, Benton Harbor, MI (US);
Abstract
The present invention provides an adaptive fill control for controlling the amount of liquid added in one or more liquid fill periods in a dishwasher cycle. The amount of liquid added in a liquid fill cycle is adjusted by activating the dishwasher drain pump while continuing to operate the dishwasher circulation pump. The accumulated time from the start of the drain pump operation until the circulation pump experiences a liquid starvation episode is compared to a predetermined optimum time period for the circulation pump to experience liquid starvation. The sign and difference between to accumulated time period and optimum time period is used to adjust the amount liquid added in the next liquid fill period. A number of sensors for detecting a circulation pump liquid starvation episode are disclosed.