Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1982-09-29
1986-01-21
Cohan, Alan
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
166323, F16K 31122
Patent
active
045652139
ABSTRACT:
A ball valve is turned relative to its seat by means of three concentric sleeves mounted within a housing bore. Pins carried by the middle piston sleeve extend outward into slots in an outer carrier sleeve and inward into cam grooves in the outer wall of an inner drive sleeve. Axial movement of the middle sleeve under hydraulic pressure causes turning movement of the inner sleeve which then drives through bevel gears to turn the ball valve. The parts are constructed so that hydraulic forces within the housing acting to hold the ball valve in closed position against its seat are substantially balanced by forces in the opposite direction acting against the outer sleeve. A hold-open tube may be passed through the opening in the ball valve, to come to rest upon a choke sleeve.
REFERENCES:
patent: 3200837 (1965-08-01), Brown
patent: 3763933 (1973-10-01), Mott
patent: 4154303 (1979-05-01), Fournier
patent: 4262693 (1981-04-01), Giebeler
patent: 4287954 (1981-09-01), Krause et al.
Bernhardt & Frederick Co., Inc.
Cohan Alan
Rivell John A.
LandOfFree
Ball valve device with hold-open tube does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ball valve device with hold-open tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ball valve device with hold-open tube will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2294381