Flapper valve and valve seat sizing element

Details Flapper valve and valve seat sizing element Flapper valve and valve seat sizing element

1989-01-23

1990-03-27

Recla, Henry J.

Baths, closets, sinks, and spittoons

Flush closet

Tank only

E03D 135

Patent

active

049108131

ABSTRACT:
A flush tank h aving an outlet provided with a valve seat and a rigid support member fixed in position inside the tank is provided with a flapper valve formed of elastomeric material and having a body portion adapted to cooperate with the valve seat and having an integral mounting portion arranged to position the body portion relative to the fixed support to accommodate relative movement of the body portion and the valve seat together with a rigid stiffening element fixedly mounted on the body portion of the flapper valve for maintaining the body portion in flat face contacting relation with the valve seat during valve closed conditions. According to one aspect of the invention, a sizing element is provided for insertion into the tank outlet in snug relation therewith and having an inner opening of a size which is less than the size of the tank outlet.

REFERENCES:
patent: 1570681 (1926-01-01), Kirkham
patent: 2277388 (1942-03-01), Clark
patent: 2741775 (1966-04-01), Schmidt
patent: 3167787 (1965-02-01), Connealy
patent: 3369259 (1968-02-01), Harold
patent: 3988785 (1976-11-01), Schoepe et al.
patent: 4499616 (1985-02-01), Johnson

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