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. 28, 1993
Filed:
Jul. 24, 1991
William J Janutka, West Allis, WI (US);
Richard G Bernhard, Germantown, WI (US);
Michael L Smith, Milwaukee, WI (US);
Joseph C Zuercher, Brookfield, WI (US);
John B Pardee, Franklin, WI (US);
Ronald R Jahn, Cedarburg, WI (US);
William J Walsh, Naperville, IL (US);
James M Pick, Elk Grove, IL (US);
Scott A Reid, Brookfield, WI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A control system for a washing machine having a transducer mounted on the exterior of the washing receptacle wall and operable to generate acoustic vibrations in the receptacle wall during fluid filling of the receptacle. A receiver detects sound waves within the receptacle generated by the wall vibrations and generates in fill signal indicative of the sound waves. Circuitry is provided for analyzing the fill signal and determining from the acoustic signature of the fill signal the occurrence of total immersion of articles in the fluid; and, the circuitry sends a signal which is operable to then shut off the fluid fill valve.