Float-controlled valve for toilet flush tanks

Details Float-controlled valve for toilet flush tanks Float-controlled valve for toilet flush tanks

1981-10-19

1984-02-14

Walton, George L.

Fluid handling

Liquid level responsive or maintaining systems

By float controlled valve

137426, 137430, 137437, F16K 3134, F16K 3300

Patent

active

044310242

ABSTRACT:
A valve assembly is adapted to control the water level within a toilet flush tank, by gravitational bodily movement of a hush tube and a valve housing integral therewith, responsive to emptying of the tank. A float coaxial with and secured fixedly to the hush tube is weighted in a manner to cause the gravitational motion of the hush tube and valve housing, when the float loses buoyancy as a consequence of the emptying of the flush tank contents. The gravitational movement of the float, hush tube, and valve housing in respect to an upstanding fill tube upon which these elements of the assembly are mounted for up and down sliding motion, causes actuation of a pilot reed valve. The pilot valve acts to break a valve seal between the fill tube and the valve housing, to an extent such that a very small force used in the opening of the pilot valve is sufficient to allow the normal line pressure to assert itself for full unseating of the valve and a consequent normal refilling of the flush tank.

REFERENCES:
patent: 522644 (1894-07-01), Berry
patent: 2827073 (1958-03-01), Owens
patent: 3115153 (1963-12-01), Delamater
patent: 3144875 (1964-08-01), Goldtrap
patent: 3285277 (1966-11-01), Goldtrap
patent: 3554219 (1971-01-01), Hudson
patent: 3693649 (1972-09-01), Gordon et al.
patent: 3729017 (1973-04-01), Brandelli
patent: 4186765 (1980-02-01), Anderson

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