Flush valve with snap-on flapper

Details Flush valve with snap-on flapper Flush valve with snap-on flapper

1987-11-20

1989-06-27

Phillips, Charles E.

Baths, closets, sinks, and spittoons

Flush closet

Tank only

4395, E03D 135

Patent

active

048415790

ABSTRACT:
A rigid flapper type valve having a backing plate has been provided with a valve seal in the form of a flexible disc mounted to the bottom of the flapper valve. During sealing the disc will flex to contact the backing plate. A vent hole is provided in the backing plate to vent the area between the disc and plate.

REFERENCES:
patent: 1712605 (1929-05-01), Delany
patent: 2741775 (1956-04-01), Schmidt
patent: 2810915 (1957-10-01), Zinkil
patent: 2849725 (1958-09-01), Armstrong et al.
patent: 3267491 (1966-08-01), Snyder et al.
patent: 3325828 (1967-06-01), Alexander
patent: 3368224 (1968-02-01), Ament
patent: 4365365 (1982-12-01), Antunez

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