Two stage flapper valve for fluid reservoirs

Details Two stage flapper valve for fluid reservoirs Two stage flapper valve for fluid reservoirs

1990-03-01

1990-09-04

Artis, Henry K.

Baths, closets, sinks, and spittoons

Flush closet

Manual selection of the amount of flush

4325, 4392, 4393, 4415, E03D 902

Patent

active

049532375

ABSTRACT:
A globular flapper valve for use in combination with a conventional toilet tank. The flapper valve consist primarily of a normally submerged lever-actuated plunger valve having connection with two separate but interconnected air chambers. A first and upper air chamber is formed in a pneumatically sealable globular container, the upper chamber having open drain access to a lower chamber which has access to a reservoir drain. The first air chamber is operatively connected to the plunger valve and the entire unit is controlled by an attached lever which may be selectively actuated to obtain a partial and alternatively a full flush.

REFERENCES:
patent: 2214439 (1940-09-01), Roberston
patent: 2709263 (1955-05-01), Doty
patent: 3987501 (1976-10-01), Anderson
patent: 4101986 (1978-07-01), Ng et al.
patent: 4120056 (1978-10-01), Phripp et al.
patent: 4135263 (1979-01-01), Anderson
patent: 4138749 (1979-02-01), Clark
patent: 4275471 (1981-06-01), Becker
patent: 4566140 (1986-01-01), Musgrove

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