Magnetically operated check valve

Details Magnetically operated check valve Magnetically operated check valve

1993-03-19

1994-06-14

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

13751629, 251 65, F16K 1502

Patent

active

053201361

ABSTRACT:
A magnetically operated check valve is disclosed having, in one aspect, a valve body and a movable poppet disposed therein, a magnet attracting the poppet to hold the valve shut until the force of fluid flow through the valve overcomes the magnetic attraction and moves the poppet to an unseated, open position; the poppet and magnet configured and disposed to trap magnetically attracted particulate and prevent it from flowing to a valve seating region.

REFERENCES:
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patent: 2608376 (1952-08-01), Adams
patent: 2609835 (1952-09-01), Horvay
patent: 2646071 (1953-07-01), Wagner
patent: 2667895 (1954-02-01), Pool et al.
patent: 2949931 (1960-08-01), Ruppright
patent: 3026903 (1962-03-01), Roach
patent: 3076417 (1963-02-01), Rhodes
patent: 3217736 (1965-11-01), Voss
patent: 3495620 (1970-02-01), Raimondi et al.
patent: 3770008 (1973-11-01), Turney
patent: 4275759 (1981-06-01), Huang
patent: 4792113 (1988-12-01), Eidsmore
patent: 4874012 (1989-10-01), Velie

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