Valves and valve actuation – Rotary valves – Ball valve
Patent
1993-04-20
1994-01-11
Fox, John C.
Valves and valve actuation
Rotary valves
Ball valve
251 84, F16K 506
Patent
active
052774040
ABSTRACT:
A valve comprised of a valve body (1) incorporating a flow bore (2), of a check element (3) rotatably or pivotally adapted to said flow bore, said check element having the shape of rotational body or part of it, incorporating a flow port (4) and being supported by seat seals (5, 6), and of a driving stem (7). The stem is connected to the check element by means of a driver element (8) which is adapted to movably fit in a slot machined to the outside surface of the check element, said slot being aligned orthogonal to the longitudinal axis of the flow port of the check element. The driver element (8) is detachably joined to the stem (7). The end of the stem is adapted to a toothed, keyed or splined hole (12, 13) of the driver element (8) so as to render the joint a torque-transmitting capability.
REFERENCES:
patent: 3472270 (1969-10-01), Mashedy
patent: 3589675 (1969-11-01), Scaramucci
patent: 3677283 (1972-07-01), Tito
patent: 3722545 (1973-03-01), Furlani
patent: 3821984 (1974-07-01), Lee
patent: 3960177 (1976-06-01), Baumann
patent: 4118008 (1978-10-01), Myers
patent: 4165580 (1979-11-01), Kalbfleisch
patent: 4175580 (1979-11-01), Kalbfleisch
patent: 4293163 (1981-10-01), Braddick
patent: 4475712 (1984-10-01), DeJager
patent: 4480813 (1984-11-01), Holly
Patent Abstracts of Japan, vol. 14, No. 203 (M-096) Apr. 25, 1990 & JP-A-2 042 281 (Kitazawa Valve KK) Feb. 13, 1990.
Fox John C.
Neles-Jamesbury Oy
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