Fluid handling – Non-valving motion of the valve or valve seat
Patent
1980-11-26
1983-02-15
Walton, George L.
Fluid handling
Non-valving motion of the valve or valve seat
251205, 251301, F16K 2900
Patent
active
043735460
ABSTRACT:
In order to increase life of a disc type valve, which exhibits wear in the presence of fluid flow, a circular freely rotatable closure disc is provided so disposed in its closure path to engage flow apertures asymmetrically thereby inducing a rotary motion which presents a randomly positioned part of the disc periphery in the wear position. Life is thereby substantially increased by distributing wear evenly about the entire periphery of the closure disc.
A fast close embodiment is of the rotary disc type operable by a lever to move a flat disc surface over a flat seat containing a flow aperture of smaller dimension than the disc. The disc in accordance with this invention is freely rotatable and the movement path of the disc axis of rotation is asymmetrically disposed relative to the geometric center of the aperture to thereby induce rotation of the disc with random rotational positioning of the disc periphery over the flow aperture, thereby distributing wear about the entire disc periphery.
REFERENCES:
patent: 133414 (1872-11-01), Coyne
patent: 786043 (1905-03-01), Luckett
patent: 851182 (1907-04-01), Rowbotham
patent: 948132 (1910-02-01), Clark
patent: 1004845 (1911-10-01), Bohme
patent: 1137194 (1915-04-01), Dewrance
patent: 1324351 (1919-12-01), Haynes
patent: 1586345 (1926-05-01), Wilson
patent: 1602936 (1926-10-01), Reeves
patent: 3191381 (1965-06-01), Lerwick et al.
Brown Laurence R.
Walton George L.
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