Fluid handling – Liquid level responsive or maintaining systems – By float controlled valve
Patent
1985-10-04
1986-12-30
Walton, George L.
Fluid handling
Liquid level responsive or maintaining systems
By float controlled valve
138 37, 138 39, 251127, F16K 4702
Patent
active
046321420
ABSTRACT:
A ballcock is constructed with upper and lower housing members which are joined by a bayonet-type fitting. The juncture of the upper and lower members defines a valve chamber which sits atop the orifice of a vertical inflow tube carrying water from below the lower housing member. A valve in the valve chamber controls the flow of water out of the orifice. The valve includes separate, spaced upper and lower resilient valving members that provide a pressure chamber. Pressure in the chamber is controlled by a spherical-head metering pin passing through apertures in the upper and lower members. A slip-on silencer telescopes over the orifice and defines, with the exterior of the inflow tube, a quieting passage. The quieting passage has an annular intake at the top and terminates below in a pair of downward directed nozzles. The spherical-head metering pin makes a ball-and-socket connection with a lever. The lever is resiliently connected to the upper housing member and operated by a metal rod connected to a float.
REFERENCES:
patent: 630605 (1899-08-01), Gordon et al.
patent: 3078867 (1963-02-01), McGillis et al.
patent: 3495803 (1970-02-01), Schoepe et al.
patent: 3581752 (1971-06-01), Schoepe et al.
patent: 3955835 (1976-05-01), Farrington
patent: 4180096 (1979-12-01), Johnson
patent: 4310028 (1982-01-01), Kennedy
patent: 4466741 (1984-08-01), Kojima
Shames Harold
Shames Sidney J.
Lettvin Norman
Walton George L.
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