Pressure switch and actuating means responsive to low pressure

Details Pressure switch and actuating means responsive to low pressure Pressure switch and actuating means responsive to low pressure

1974-04-08

1978-08-01

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

200 83S, H01H 3534

Patent

active

041044959

ABSTRACT:
Improved actuating mechanisms are provided in pressure switches controlling water tub fill levels in domestic appliances such as dishwashers, washing machines, etc. The mechanisms include a snap blade construction which improves contact point wear characteristics; an orifice molded into the switch's plastic body which averages transient surges in water tub levels during operation; a simplified plunger arrangement utilizing an especially configured actuator for establishing trip and reset levels of the switch; and a snap blade configuration which minimizes "contact bounce" after the contact moves from one stationary contact to the other.

REFERENCES:
patent: 2685650 (1954-08-01), Collins
patent: 3213244 (1965-10-01), McCarrick
patent: 3366760 (1968-01-01), Kolze
patent: 3407277 (1968-10-01), Chapin
patent: 3596023 (1971-07-01), Kothe
patent: 3598946 (1971-08-01), Hanssen
patent: 3689719 (1972-09-01), Phillips
patent: 3694597 (1972-09-01), Rosch
patent: 3773991 (1973-11-01), Krieger

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