Valves and valve actuation – Fluid actuated or retarded – Piston type expansible chamber reciprocating valve actuator
Patent
1988-03-01
1989-01-03
Walton, George L.
Valves and valve actuation
Fluid actuated or retarded
Piston type expansible chamber reciprocating valve actuator
92106, 92138, 175218, 251 58, 251327, 251328, 251329, 277 27, 277188R, F16K 31122
Patent
active
047951281
ABSTRACT:
A kelly cock valve for a drill rig uses a sliding gate to open and close the flow passage through the drill string. The valve has a body with a longitudinal passage through it. The gate is mounted in the body perpendicular to the flow passage. Pushrods extend from each end of the gate out through bonnets mounted to the body of the valve. The fluid cylinders are mounted on each side of the gate. Each fluid cylinder has a piston with a piston rod extending in opposite directions. The piston rods are connected to a beam that also connects to the pushrod. Hydraulic passages supply fluid to the cylinders to stroke the piston and thus move the gate valve between open and closed positions.
REFERENCES:
patent: 616886 (1899-01-01), Brinkman
patent: 2386589 (1945-10-01), Caldwell
patent: 2503469 (1950-04-01), Caldwell
patent: 2536565 (1951-01-01), Ostergren
patent: 2835227 (1958-05-01), Gamet
patent: 3020057 (1962-02-01), Gamet
patent: 3610569 (1971-10-01), Reaves
patent: 3661357 (1972-05-01), Armstrong, Jr.
patent: 3806082 (1974-04-01), Kellner
patent: 3887161 (1975-06-01), Kubelka, Jr.
patent: 3941348 (1976-03-01), Mott
patent: 4262693 (1981-04-01), Giebeler
patent: 4316596 (1982-02-01), Krober et al.
patent: 4323221 (1982-04-01), Krober et al.
patent: 4339108 (1982-07-01), Daniluk
patent: 4456217 (1984-06-01), Winegeart et al.
patent: 4576358 (1986-03-01), Mott et al.
patent: 4700924 (1987-10-01), Nelson et al.
Calk, Jr. Henry D.
Jones Taylor L.
Krasnov Igor
McDougal Billy L.
Bradley James E.
Vetco Gray Inc.
Walton George L.
LandOfFree
Gate type kelly cock 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 Gate type kelly cock valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gate type kelly cock valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2164528