Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1985-12-04
1987-11-03
Chambers, A. Michael
Fluid handling
Systems
Flow path with serial valves and/or closures
137614, 13761417, 285 25, F16L 2900
Patent
active
047037741
ABSTRACT:
A check valve system (10) with a fail-safe valve (FSC) comprising either a pair of oppositely acting, oppositely facing, one-way check valves (V1 and V2) located at the interface (42) between two connecting numbers (36, 40), or a shuttle valve (206) and stab (232), for controlling the flow of fluid through the connector members at the member interface. Said valves (V1, V2, and 206) are closed by spring bias when the members are separated but which are mechanically opened when said members engage one another to permit the flow of pressure fluid through the members. The fail-safe valve (FSC or FSCa) is a one-way check valve in one of the check valves (V2) closed against pressure fluid, when said members are joined, but which will open to relieve any pressure which might be trapped in control lines (12a) when the members become disconnected. The members are disclosed as part of a connector (16) and a mandrel (20), and as part of a tree (200), tree cap (202 ), or running tool.
REFERENCES:
patent: 1944124 (1934-01-01), Goodman
patent: 3570543 (1971-03-01), Ekman
patent: 3730221 (1973-05-01), Vih
patent: 3777771 (1973-12-01), De Visscher
patent: 4460156 (1984-07-01), Hazelrigg et al.
patent: 4549577 (1985-10-01), Kugler
patent: 4582295 (1986-04-01), Kugler et al.
Chambers A. Michael
Dwyer Joseph R.
Fox John C.
Vetco Gray Inc.
LandOfFree
Subsea safety check valve system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Subsea safety check valve system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subsea safety check valve system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1669924