Fluid handling – Processes – With control of flow by a condition or characteristic of a...
Patent
1989-09-25
1990-07-03
Walton, George L.
Fluid handling
Processes
With control of flow by a condition or characteristic of a...
137216, 137426, 137436, 137443, 138 45, 181234, 251121, F16K 4702, F16K 4716, F16K 3124
Patent
active
049382454
ABSTRACT:
A toilet refill valve is described for refilling a water closet after each flushing, which produces minimal noise during the refill process. The valve includes a valve device which can open to pass water to a vertical outlet tube that empties into the bottom of the water closet. An anti-siphon air tube near the top of the outlet tube has an upper end open to the atmosphere and a lower end facing downwardly along the outlet tube. A restriction in the outlet tube below the air tube, causes water to fill the outlet tube and at least the bottom of the air tube for a water inlet pressure of at least 20 psi. The water at the bottom of the air tube prevents air from being dragged into the downwardly facing air tube, to avoid the noise that would result from such air flowing through the air tube and bubbling out of the bottom of the outlet tube.
REFERENCES:
patent: 2111614 (1938-03-01), Cox
patent: 2212284 (1940-08-01), Wolff
patent: 2261948 (1941-11-01), Beach
patent: 2277878 (1942-03-01), Morris
patent: 2382500 (1945-08-01), Owens
patent: 2409890 (1946-10-01), Owens
patent: 2955672 (1960-10-01), Kass
patent: 3107747 (1963-10-01), Parkison
patent: 3473565 (1969-10-01), Blendermann
patent: 3516094 (1970-06-01), Reagan
patent: 3867963 (1975-02-01), Ballard
patent: 4108202 (1978-08-01), Schoepe
patent: 4338964 (1982-07-01), Schoepe
patent: 4515536 (1985-05-01), Van Os
patent: 4586873 (1986-05-01), Lepretre et al.
Dufau Oscar
Schoepe Adolf
Fluidmaster Inc.
Walton George L.
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