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:
Oct. 28, 2014
Filed:
May. 12, 2011
Marco Lorenzi, Porcia, IT;
Paolo Driussi, Zoppola, IT;
Marco Lorenzi, Porcia, IT;
Paolo Driussi, Zoppola, IT;
Electrolux Home Products Corporation N.V., Brussels, BE;
Abstract
A washing and/or drying appliance includes a heating circuit () for heating a washing liquid and/or a drying air flow, connected to voltage distribution lines () distributing power inside the appliance. The heating circuit includes at least one heating resistor () in series to switch means () controlled by an appliance control unit () for selectively energizing the heating resistor when required. The switch means of the heating circuit includes a first and a second switch () in series to the heating resistor, the heating resistor being interposed between the first and second switches. A monitoring circuit arrangement is provided, which includes a first resistor (R) in shunt to the heating resistor and having a resistance substantially higher than that of the heating resistor, and a pull-up network connected between a first terminal () of the heating resistor and one of the voltage distribution lines. The control unit is configured for receiving a voltage corresponding to an electric potential at a second terminal () of the heating resistor.