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. 03, 1998
Filed:
Apr. 15, 1997
Applicant:
Inventors:
Piero Babuin, Pordenone, IT;
Silvano Cimetta, Treviso, IT;
Assignee:
Electrolux Zanussi Elettrodomestici S.p.A., Pordenone, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06F / ; D06F / ; D06F / ;
U.S. Cl.
CPC ...
68 1213 ; 68 1 / ; 68208 ;
Abstract
A monitoring arrangement for the filter of a washing machine is disclosed wherein the user is warned of the clogged filter when an actual clogging condition occurs. Control elements that are normally used in washing machines, such as an analog pressure switch (13) and an electronic control circuit (14), are utilized. The control parameter for detecting clogging is the variation of the water pressure before and after the priming of the drain pump (12) or the recirculator pump (17) of the machine.