Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1986-10-02
1987-09-08
Nilson, Robert G.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
13753313, 13753315, 417507, 417554, F16K 1504
Patent
active
046917357
ABSTRACT:
A traveling valve or a standing valve for an oil well lift pump 10 includes a piston 36 which lifts a ball 50 above the valve seat 48 to open the valve and sets the ball 50 back onto the seat 48 to close the valve. The ball 50 is contained within a ball protection shield 52 which prevents uncontrolled movement by the ball 50 inside the middle tube 18. The piston 36 has openings 42, and the ball protection shield 52 has apertures 60 which allow fluid to flow through the the valve without engaging the ball 50.
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Nilson Robert G.
O'Neil Michael A.
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