Flow control valve

Details Flow control valve Flow control valve

1991-11-12

1993-04-27

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

137853, 175317, 251 5, F16K 1514

Patent

active

052053253

ABSTRACT:
A flow control valve assembly is provided which, when connected to a rotatable drill string, prevents drainage of fluid from a standpipe and rotary hose of a drilling rig when fluid flow through the drill string is interrupted. The flow control valve assembly comprises a tubular body member or housing having a fluid flow passage extensive therethrough and a flow control valve supported within the fluid flow passage of the tubular body member. The flow control valve, which is a self-contained pressurized unit, is provided with an annular pressure cavity so that the flow control valve can be selectively opened and closed in response to pressure differential between the annular pressure cavity and the pressure of fluid in the fluid flow passage of the tubular body member.

REFERENCES:
patent: 2653009 (1953-09-01), Ragland
patent: 2945665 (1960-07-01), Regan et al.
patent: 3342215 (1967-09-01), Griffin, III
patent: 3365009 (1968-01-01), Burnham
patent: 3494588 (1970-02-01), Kisling, III
patent: 3566964 (1971-03-01), Livingston
patent: 3703213 (1972-11-01), Kammerer et al.
patent: 3955594 (1976-05-01), Snow
patent: 4303100 (1981-12-01), Kalb
patent: 4465258 (1984-08-01), Weingarten
patent: 4630635 (1986-12-01), Bernstein
patent: 4811758 (1989-03-01), Piper

Affiliated with

Also associated with

Rating

Flow control 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 Flow control valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow control valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2320157