Faucet valve with anti-siphon back flow preventer

Fluid handling – Back flow prevention by vacuum breaking – Air vent in liquid flow line

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Details

137217, 13762541, 137854, F16K 2402

Patent

active

048056618

ABSTRACT:
A faucet valve 10 includes a ball valve 28 seated in a valve chamber 18. The ball valve 28 has a plurality of apertures 46 circumferentially spaced about the control stem 32 which extends through an opening 60 in the cap assembly 48 of the valve housing 16. A check valve 66 is formed within the hollow interior 62 of the ball valve and includes a disc section 70 that mounts a flap valve 78. A shield formed by a cylindrical wall 80 downwardly depending from the disc section 70 and a snap ring 84 fitted on the lower end of the cylindrical wall protects the flap valve from undue water turbulence. Negative pressure in the supply inlet opens the flap valve 78 to draw air through passageway 64 formed by the apertures 46 and auxiliary opening 60 and hollow interior 62 of the ball valve seated in the valve chamber 18.

REFERENCES:
patent: 2133804 (1938-10-01), Brooks
patent: 2584436 (1952-02-01), Donaldson
patent: 2927598 (1960-03-01), Thompson
patent: 3056418 (1962-10-01), Adams et al.
patent: 3104674 (1963-09-01), Bills et al.
patent: 3172426 (1965-03-01), Cole
patent: 3416556 (1968-12-01), Nelson
patent: 3424188 (1969-01-01), Whitaker et al.
patent: 3454032 (1969-07-01), Hinz et al.
patent: 3470898 (1969-10-01), Langdon
patent: 3565097 (1971-02-01), Costa
patent: 3713457 (1973-01-01), McInnis et al.
patent: 3967638 (1976-07-01), Tondreau
patent: 4008732 (1977-02-01), Fichter et al.
patent: 4287905 (1981-09-01), Iglesius
patent: 4410001 (1983-10-01), Goguen
patent: 4553560 (1985-11-01), Tucker et al.
patent: 4630643 (1986-12-01), Lorch
patent: 4696322 (1987-09-01), Knapp et al.

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