Fluid handling – Processes – Cleaning – repairing – or assembling
Patent
1983-01-20
1985-02-26
Walton, George L.
Fluid handling
Processes
Cleaning, repairing, or assembling
137240, 13724622, 222368, 406 63, 414219, F16K 522, B08B 304
Patent
active
045012865
ABSTRACT:
A valve structure including a valve body defining a valve chamber with a tapered bearing surface and a tapered valve member journaled in the tapered bearing surface. A spring-biased plunger mechanism constantly urges the valve member into slidable sealing engagement with the tapered bearing surface. A passage communicates between the valve chamber and the exterior of the valve body via the spring-biased plunger mechanism and is connected in fluid flow communication with a source of suitable fluid, whereby such fluid passes from the source into the valve chamber via the spring-biased plunger mechanism.
REFERENCES:
patent: 1696726 (1928-12-01), Nordstrom
patent: 2278819 (1942-04-01), Gredell
patent: 2885246 (1959-05-01), De Haven
patent: 3139996 (1964-07-01), Welty
patent: 3167398 (1965-01-01), Whittington
patent: 3219208 (1965-11-01), Hadley et al.
patent: 3559678 (1971-02-01), Donner
patent: 3665957 (1972-05-01), Fulmer et al.
patent: 4325837 (1982-04-01), Capshew et al.
Operating and Maintenance Instructions AP-150 Double Check Feeder Valve, Seiscor Division, Seismograph Service Corporation.
Martin Laura A.
Rohlfing Raymond G.
Phillips Petroleum Company
Walton George L.
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