Control device for laundry drier

Details Control device for laundry drier Control device for laundry drier

1981-01-23

1983-05-31

Schwartz, Larry I.

Drying and gas or vapor contact with solids

Apparatus

With apparatus using centrifugal force

34 55, 34133, F26B 2106

Patent

active

043854516

ABSTRACT:
A control device for a laundry drier in which tumbling of the load articles causes them to form intermittent connections between contact electrodes. The control device is responsive to the state of dryness of the load includes means for causing an electrical current flow through a resistor, the electrodes and the load articles such that a potential difference is developed across the resistor. This potential difference is applied to a comparator for comparison with a reference potential value. A resettable timing circuit is reset to the beginning of a fixed time interval whenever the detected potential difference exceeds the reference value and the timing circuit operates an output switch only if no resetting action has occurred in that time interval.

REFERENCES:
patent: 3324568 (1967-06-01), Nelson et al.
patent: 3497964 (1970-03-01), Elders
patent: 3758959 (1973-09-01), Karklys

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