Check valve

Details Check valve Check valve

1983-07-08

1985-08-20

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

13753321, 251337, 251368, F16K 1506

Patent

active

045358087

ABSTRACT:
A check valve particularly useful for water well applications. The valve components are positioned at the low pressure, downstream side of a flexible poppet. A flexible guide, shaped generally as an inverted top hat, snaps into place in an annular groove and responds to longitudinally directed forces from the water flow and a biasing spring to forcibly retain the guide in the groove. A stem affixed to the poppet slides within an aperture of the guide and restricts the poppet to generally longitudinal motion.

REFERENCES:
patent: 338215 (1886-03-01), Atwood
patent: 678271 (1901-07-01), Mueller
patent: 967514 (1910-08-01), Groh
patent: 1497726 (1924-06-01), Keenan
patent: 1568940 (1926-01-01), Dooley
patent: 1939128 (1933-12-01), Meyer
patent: 1942417 (1934-01-01), Ferlin
patent: 2401856 (1946-06-01), Brock
patent: 2594641 (1952-04-01), Griffith
patent: 2870784 (1959-01-01), Walls
patent: 3209777 (1965-10-01), Salisbury
patent: 3441051 (1969-04-01), Morse
patent: 3811470 (1974-05-01), Schaefer
patent: 4203466 (1980-05-01), Hager
patent: 4368756 (1983-01-01), Carlson

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-555478