Two-stage hydraulic flush control device

Details Two-stage hydraulic flush control device Two-stage hydraulic flush control device

1977-08-04

1979-02-13

Aegerter, Richard E.

Baths, closets, sinks, and spittoons

Flush closet

Tank only

4324, 4415, E03D 114, E03D 134

Patent

active

041387490

ABSTRACT:
A two-stage hydraulic flush device for use in regulating the amount of water released when flushing a conventional water closet. The flush handle of a conventional water closet is actuated so as to unseat a drain plug in the water tank, and the piston of a hydraulic cylinder which is submersibly disposed within the water tank is then displaced to one of two distinct positions. As the piston is displaced, water is admitted into the cylinder below the piston. When the flush handle is released, water is expelled from the cylinder at a controlled rate as the piston is forcibly returned by a spring mechanism to its initial position. As the piston returns, the lifting arm is actuated so as to reseat the drain plug. The water outlet flow rate determines the duration of the flushing action, and two distinct piston positions define the two flush stages.

REFERENCES:
patent: 990132 (1911-04-01), Hodgkins
patent: 3958281 (1976-05-01), Remmel

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