Baths – closets – sinks – and spittoons – Flush closet – Tank only
Patent
1996-03-20
1997-11-11
Walczak, David J.
Baths, closets, sinks, and spittoons
Flush closet
Tank only
4368, E03D 108
Patent
active
056850271
ABSTRACT:
A siphonic flush valve for a toilet having a toilet tank and toilet bowl. The valve includes a housing supportable in the toilet tank and defines a chamber, an upleg open to the chamber and a downleg open to the upleg. The chamber includes a manually actuatable piston system slideably supported therein for forcing water in the chamber into the upleg. The flush valve also includes an adjustable check valve and a vent and reseal tube.
REFERENCES:
patent: 1173631 (1916-02-01), Zwermann
patent: 1263660 (1918-04-01), Gove
patent: 1333269 (1920-09-01), Metcalf
patent: 3358295 (1967-12-01), Wolfgram
patent: 3851338 (1974-12-01), Roosa
patent: 4268924 (1981-05-01), Price et al.
patent: 5140712 (1992-08-01), Wang-On
American Standard Inc.
Knab Ann M.
Robinson Elaine Brenner
Walczak David J.
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