Valves and valve actuation – Fluid actuated or retarded – Fluid and non-fluid actuators
Patent
1988-05-11
1989-03-28
Walton, George L.
Valves and valve actuation
Fluid actuated or retarded
Fluid and non-fluid actuators
251 90, 251 95, 251109, 251285, 251286, 251305, F16K 3500, F16K 3160, F16K 31143
Patent
active
048156930
ABSTRACT:
A valve has a housing to which a 360 degree notch plate is integrally connected. A valve member mounted within the housing control fluid flows and rotates though substantially 90 degrees between maximally open and closed positions. A valve stem extends upwardly from the valve and through an opening formed in the notch plate. A handle is releasably secured to the valve stem immediately above the notch plate and has a spring-biased pivoting arm which cooperates with the notches to permit the angular position of the handle and consequently the valve member to be incrementally adjusted and locked. The upper surface of the notch plate has four distinct quadrants, and a number of holes formed at predetermined locations, a different pair of holes being associated with and positioned to either side of each quadrant. The valve stem is shaped to receive the handle in only predetermined angular orientations relative to the valve member. The predetermined angular orientations and the location of the holes are such that, with the handle located in any selected quadrant and the stops located in the pair of holes associated with the selected quadrant, the valve member is fully open when the handle abuts one stop is closed when the handle abuts the other stop.
REFERENCES:
patent: 914209 (1909-03-01), Watson
patent: 1104918 (1914-07-01), Mouat
patent: 3228415 (1966-01-01), Geiss
patent: 3311128 (1967-03-01), Taylor
patent: 3329394 (1967-07-01), Overbaugh
patent: 3355141 (1967-11-01), Cooper
patent: 3537473 (1970-11-01), DeZurik, Jr.
patent: 3921955 (1975-11-01), Haddad, Jr.
patent: 4100816 (1978-07-01), Clark
patent: 4162782 (1979-07-01), Wilkins
patent: 4570901 (1986-02-01), Holtgraver
Calder Leslie
James Bruce
Lunkenheimer Tubecraft Canada Ltd.
Walton George L.
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