Water-supply valve of a washing machine

Details Water-supply valve of a washing machine Water-supply valve of a washing machine

1994-12-23

1996-04-02

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

74 57, 74569, 134 57R, 251 45, 251229, 251252, F16K 3104, F16K 31128, F16K 31528

Patent

active

055033628

ABSTRACT:
Disclosed is a water-supply valve of a washing machine in which the consumption of electric power can be minimized in opening and closing the valve to supply water into and block off the water supply from a washing tub of the washing machine. In the water-supply valve, an actuator rod is elevated against downward biasing force of a spring by a magnetic force of the solenoid generated by applying a voltage thereto, and then is retained at its uppermost position by a stopper. The stopper has a guide groove of an inverted-heart shape formed therein, which has four guide surfaces.

REFERENCES:
patent: 1644171 (1927-10-01), Caldwell
patent: 1885846 (1932-11-01), Littlefield
patent: 2946551 (1960-07-01), Kovach
patent: 2990155 (1961-06-01), Selinder
patent: 3410301 (1968-11-01), Merriner et al.
patent: 3672627 (1972-06-01), McCarty, Jr. et al.
patent: 3780980 (1973-12-01), Kallel
patent: 3870275 (1975-03-01), Kallel
patent: 3994318 (1976-11-01), Ishigaki
patent: 4350322 (1982-09-01), Mueller
patent: 5090441 (1992-02-01), Richmond

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