Sequential switching device

Details Sequential switching device Sequential switching device

1975-05-23

1977-11-08

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With apparatus using centrifugal force

34 83, F26B 1104

Patent

active

040568911

ABSTRACT:
A latching circuit is inserted between the door switch of a dryer or any other unattended device and the operating components thereof. Thus when the door switch is opened the circuit is unlatched and a subsequent closure of the door will not resume operation of the device. To allow for such resumption a push-to-close switch is included across the latching circuit whereby a sequence of closing the door switch followed by manual depression of the push-to-close switch will restart the device.

REFERENCES:
patent: 3271878 (1966-09-01), Martin
patent: 3394467 (1968-07-01), Janke
patent: 3545096 (1970-12-01), Salisbury et al.
patent: 3713226 (1973-01-01), Takeyama

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