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:
Nov. 27, 2018
Filed:
Oct. 17, 2011
Steven B. Balinski, Saint Joseph, MI (US);
Mark S. Feddema, Kalamazoo, MI (US);
Steven B. Balinski, Saint Joseph, MI (US);
Mark S. Feddema, Kalamazoo, MI (US);
Whirlpool Corporation, Benton Harbor, MI (US);
Abstract
A dishwasher includes a filtration system that can be configured in a chopping or filtration only arrangement. A check valve cover attached to an accumulator is inserted into a main intake of a sump and divides the main intake into a fluid recirculation chamber in communication with a recirculation intake port, and a separate fluid draining chamber in communication with a drain port. When a drain pump is actuated, fluid is pulled from the accumulator through the drain port until pressure within the fluid draining chamber drops below the pressure of the sump and a check valve in the check valve cover is forced open, allowing fluid to be channeled out of the fluid recirculation chamber into the fluid draining chamber. Optionally, a fine filter system can replace the convertible filtration system, whereby the main intake is in fluid communication with both the recirculation intake port and the drain port.