Drier appliance control

Details Drier appliance control Drier appliance control

1977-01-17

1978-09-12

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 48, 34 53, 219492, F26B 1104

Patent

active

041125886

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.

REFERENCES:
patent: 3254421 (1966-06-01), Kielsmeier et al.
patent: 3597139 (1971-08-01), Elders
patent: 3707776 (1973-01-01), Scmidgall
patent: 3806308 (1974-04-01), Cahoe et al.
patent: 3874089 (1975-04-01), Offutt
patent: 3962617 (1976-06-01), Offutt et al.

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