Fluid handling – Processes
Patent
1989-10-16
1990-10-23
Nilson, Robert G.
Fluid handling
Processes
251283, 251287, 251305, F16K 122
Patent
active
049644319
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 in order to effect pivotal movement of the valve member in response to fluid dynamic flow forces. An actuator carried upon the valve member cooperates with the duct to forcefully effect initial opening and final closing movements of the valve member.
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), Goldburg
patent: 3200838 (1965-08-01), Sheaffer
patent: 3298659 (1967-01-01), Dupedo
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 Physical Laboratory, Aerodynamics Division, Sep. 1986.
Ball Larry K.
Hines Marshall U.
Miller Terry L.
Allied-Signal Inc.
Black Joseph R.
McFarland James W.
Miller Terry L.
Nilson Robert G.
LandOfFree
Butterfly valve apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Butterfly valve apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Butterfly valve apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-760078