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:
Dec. 30, 2025
Filed:
Feb. 22, 2024
Haier Us Appliance Solutions, Inc., Wilmington, DE (US);
Haitian Hu, Louisville, KY (US);
Adam Hofmann, Louisville, KY (US);
Haier US Appliance Solutions, Inc., Wilmington, DE (US);
Abstract
A dishwasher appliance includes a wash tub and a sump for collecting wash fluid, a pump assembly for selectively urging a flow of the wash fluid from the sump, a pressure sensor for monitoring a wash fluid level within the wash tub, a microphone for monitoring sound generated during operation of the dishwasher appliance, and a controller configured to obtain a pressure reading using the pressure sensor, determine that the wash fluid in the sump is at a low level based at least in part on the pressure reading, energize the pump assembly to circulate the wash fluid, obtain a sound signal generated during energization of the pump assembly using the microphone, determine that the wash fluid in the sump is not at a low level based at least in part on the sound signal, and provide a user notification that the pressure sensor is defective.