Fluid handling – Processes
Patent
1989-10-16
1990-10-16
Nilson, Robert G.
Fluid handling
Processes
1375992, 137630, 251305, F16K 122
Patent
active
049627830
ABSTRACT:
A butterfly valve includes a duct defining a fluid flow path and a plate-like valve member pivotal in the duct to in one position open and close the latter. The valve member is pivotal to a second position spanning the duct and extending parallel to the flow path to allow fluid flow therein. Means are provided for altering the effective area distribution of the valve member about its pivot axis to effect opening and closing of the inventive valve in response to fluid pressure forces acting thereon.
REFERENCES:
patent: 212556 (1879-02-01), Johnson
patent: 443326 (1890-12-01), Leverich
patent: 932172 (1909-08-01), Porter et al.
patent: 965322 (1910-07-01), Peterson
patent: 1167145 (1916-01-01), Baverey
patent: 1328565 (1920-01-01), Howard
patent: 1541047 (1925-06-01), Hart
patent: 1744798 (1930-01-01), Price
patent: 2051881 (1936-08-01), Mock
patent: 2095263 (1936-04-01), Moss
patent: 2271390 (1942-01-01), Dodson
patent: 2796082 (1957-06-01), Green
patent: 2833511 (1958-05-01), Fletcher
patent: 2910266 (1959-10-01), Condello et al.
patent: 3008685 (1961-11-01), Rudden
patent: 3062232 (1962-11-01), McGay
patent: 3065950 (1962-11-01), Goldberg
patent: 3200838 (1965-08-01), Sheaffer
patent: 3298659 (1967-01-01), Cupedo
patent: 3344808 (1967-10-01), Cary
patent: 3400907 (1968-09-01), Horn et al.
patent: 3442489 (1969-05-01), Cary et al.
patent: 3516640 (1970-06-01), Bryer et al.
patent: 3545486 (1970-12-01), Larson
patent: 3675681 (1972-07-01), Obermaler
patent: 3677297 (1972-07-01), Walton
patent: 3794288 (1974-02-01), Dolder et al.
patent: 3960177 (1976-06-01), Baumann
patent: 3971414 (1976-07-01), Illing
patent: 3982725 (1976-09-01), Clark
patent: 3993096 (1976-11-01), Wilson
patent: 4084617 (1978-04-01), Happe
patent: 4190074 (1980-02-01), Mailliet et al.
patent: 4313592 (1982-02-01), Baas
patent: 4367861 (1983-01-01), Bray et al.
patent: 4508132 (1985-04-01), Mayfield, Jr. et al.
patent: 4534538 (1985-08-01), Buckley et al.
patent: 4556192 (1985-12-01), Ramisch
patent: 4586693 (1986-05-01), Tinner
patent: 4706706 (1987-11-01), Page et al.
patent: 4712768 (1987-12-01), Herr et al.
"Fishtail vs. Conventional Discs in Butterfly Valves", Carl Wilson, Instruments & Control Systems, vol. 41; Mar. 1968.
"The Note on the Reduction of the Fluid Dynamic Torque of Butterfly Valves", D. W. Bryer, National Physics Laboratory, Aerodynamics Division; Sep. 1986.
Ball Larry K.
Hines Marshall U.
Allied-Signal Inc.
Black Joseph R.
McFarland James W.
Miller Terry L.
Nilson Robert G.
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