Pump valve apparatus

Details Pump valve apparatus Pump valve apparatus

1991-08-12

1993-01-12

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

13753315, 417554, F16K 1504

Patent

active

051781840

ABSTRACT:
A valve having a tubular valve body, an inlet, an outlet and a flow passage therebetween. A valve seat is carried by the valve body at the inlet. A cylindrical cage with flow ports through its walls is carried by the valve body, the interior of which defines a cylindrical enclosure open at the end nearest the inlet and partially closed by an end wall at the opposite end. A ball closure member is carried within the cage for limited axial movement between a seated terminal portion, blocking reverse flow through the valve, and an unseated terminal position unblocking flow through the valve.

REFERENCES:
patent: 2192541 (1940-03-01), Davis
patent: 2578069 (1951-12-01), Jones
patent: 2899974 (1959-08-01), Gratzmuller
patent: 3168052 (1965-02-01), Pate
patent: 3260279 (1966-07-01), Liebmann
patent: 4691735 (1987-09-01), Horton

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