Water-closet valve

Details Water-closet valve Water-closet valve

1985-10-24

1987-04-14

Artis, Henry K.

Baths, closets, sinks, and spittoons

Flush closet

Tank only

4356, 4378, 4403, 4404, E03D 135

Patent

active

046566775

ABSTRACT:
Savings in water consumption are obtained and problems with leakage are avoided by using a water-closet valve which is made of flexible air- and water-tight material and has not only a generally frustoconical seat-engaging portion provided with a pair of circumferential rings or protuberances so as to permit the formation of a double seal but also an interior hollow portion such that towards the end of a flushing operation there is produced within the valve member a partial vacuum which creates a thrust force to perfect the sealing of the valve member within its seat.

REFERENCES:
patent: 1577728 (1926-03-01), Katzin
patent: 1904898 (1933-04-01), Kennedy
patent: 2117629 (1938-05-01), Rosanthal
patent: 2155902 (1939-04-01), Kass
patent: 2589110 (1952-03-01), Meltsner
patent: 3086218 (1963-04-01), Gross
patent: 4385406 (1983-05-01), Miskiewicz

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