Flush valve for toilets

Details Flush valve for toilets Flush valve for toilets

1996-05-28

1997-10-07

Walczak, David J.

Baths, closets, sinks, and spittoons

Flush closet

Tank only

4379, 4388, 4324, E03D 134

Patent

active

056734417

ABSTRACT:
A flush valve of a toilet that includes an internal valve piece and an external valve piece. The external valve piece is circular and is installed inside a circular hole which includes a circular flange that engages the internal valve piece. A rear side of the internal valve piece includes a resilient portion formed from gelatinous material so that the internal valve piece serves the purpose of delaying the reset action. Basically, in the first stage the flush handle is rotated by the user to open the internal valve piece. Thus, the drain rate of the water box is slower. In the second stage, the flush handle further is rotated to a position to engage the internal circular flange of the external valve piece so as to open the external valve piece. Therefore, the drain rate becomes much faster. By the two stage flushing process, the user can regulate the drain rate, thus conserving water.

REFERENCES:
patent: 3964109 (1976-06-01), Street et al.
patent: 4160294 (1979-07-01), Crumby

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