Automatic re-set pressure switch

Details Automatic re-set pressure switch Automatic re-set pressure switch

1978-10-02

1980-03-11

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

200 83L, 200322, 337118, H01H 3534

Patent

active

041929802

ABSTRACT:
If the pressure switch pre-loading cam has been set for a level above medium the pressure switch is returned to medium after completion of the wash cycle by momentary energization of the solenoid to unlatch the slider from the lobed cam. The slider carries the high and extra high settings and when it is disconnected from the cam the torsion spring on the cam shaft can drive the cam back to medium by pushing the slider out of the way. This arrangement prevents inadvertent repeated use of the higher water level settings, thus preventing inadvertent use of hot water.

REFERENCES:
patent: 3291932 (1966-12-01), Main
patent: 3315053 (1967-04-01), Bauer
patent: 3319023 (1967-05-01), Lake

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