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.

Date of Patent:
Mar. 24, 2026

Filed:

Dec. 22, 2021
Applicant:

Electrolux Appliances Aktiebolag, Stockholm, SE;

Inventors:

Daniele Beninato, Porcia, IT;

Riccardo Prota, Porcia, IT;

Sandro Brovedani, Porcia, IT;

Alberto Bisutti, Porcia, IT;

Viktor Kozma, Porcia, IT;

Arne Nensen, Stockholm, SE;

David Persson, Stockholm, SE;

Conny Finne, Stockholm, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 15/00 (2006.01); A47L 15/42 (2006.01);
U.S. Cl.
CPC ...
A47L 15/0049 (2013.01); A47L 15/4219 (2013.01); A47L 15/4225 (2013.01); A47L 2401/08 (2013.01); A47L 2401/20 (2013.01); A47L 2501/01 (2013.01);
Abstract

A washing appliance comprising a tub to house items to be washed; a circulation pump () to circulate a washing fluid in the tub; a circulation pump motor to drive the circulation pump; a drain pump; a detection unit configured to monitor at least one electromechanical parameter of the circulation pump motor, and to detect, based on the monitored at least one electromechanical parameter, a starvation event indicating that air is drawn out by the circulation pump or a saturation event indicating that no air is drawn out by the circulation pump: a control unit configured to determine a first starvation event and a second starvation event occurred after the first starvation event, wherein the first starvation event is determined when a starvation event is detected after a first number of consecutive saturation events (N1) is counted, or after a first time interval (ΔT1) has elapsed during which no starvation event is detected, and wherein the second starvation event is determined when a starvation event is detected before a second number of consecutive saturation events (N2) is counted after the first starvation event, or before a second time interval (ΔT2) has elapsed after the first starvation event during which no starvation event is detected.


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