Valves and valve actuation – Rotary valves – Ball valve
Patent
1989-12-11
1990-06-26
Fox, John C.
Valves and valve actuation
Rotary valves
Ball valve
251304, F16K 506
Patent
active
049365479
ABSTRACT:
A ball valve of the type comprising a housing having a ball mounted for 90.degree. rotation therein between open and closed valve positions utilizes a ball whose exterior surface is shaped to define two noncoaxial hemispherical surface portions of like size and shape that are integrated with one another and offset from one another along a plane that is oriented at substantially 45.degree. to an axially directed bore in the ball. The hemispherical surface portions of the ball are in touching engagement with a pair of annular seat rings in the housing in the open position of the valve, and engage the seat rings with increasing force as the ball is rotated from the open position to the closed position of the valve.
REFERENCES:
patent: 3064937 (1962-11-01), Pryor
patent: 3124333 (1964-03-01), Sivyer
patent: 3191906 (1965-06-01), Zeigler et al.
patent: 3410523 (1968-11-01), Kelly et al.
patent: 3809361 (1974-05-01), Pfundstein et al.
patent: 3946986 (1976-03-01), Sutter et al.
patent: 4073473 (1978-02-01), Rihm et al.
patent: 4074889 (1978-02-01), Engel
patent: 4118008 (1978-10-01), Myers
patent: 4121607 (1978-10-01), Bader
patent: 4215846 (1980-08-01), Ishizuka et al.
patent: 4640492 (1987-02-01), Carlson
patent: 4822000 (1989-04-01), Bramblet
Fox John C.
Worcester Controls Corporation
LandOfFree
Eccentric ball valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Eccentric ball valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Eccentric ball valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1120778