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:
Sep. 12, 1978
Filed:
Jan. 17, 1977
Roque Denis Marcade, Stevensville, MI (US);
Whirlpool Corporation, Benton Harbor, MI (US);
Abstract
A control for use with a drier appliance arranged to provide maintained operating control voltage across the timer motor notwithstanding the series connection thereof with the electrical components of the heating apparatus of the drier appliance. The timer motor may be connected in series with a control switch and the electrical component of the heating apparatus may be connected in series with a thermostat switch. A capacitor is connected from between the timer motor and control switch to between the electrical component and thermostat switch for connecting the timer motor in series with the electrical component when the control switch is open. The series connection of the capacitor and timer motor is effectively shorted by the thermostat switch when the thermostat switch is closed. The capacitance of the capacitor is preselected to form with the inductance of the timer motor a series resonant circuit condition when the thermostat switch is open whereby the voltage across the timer motor is at least the minimum operating voltage thereof and the voltage across the electrical component of the heating apparatus is less than the minimum operating voltage to cause effective heating operation thereof.