Positive pressure valves

Details Positive pressure valves Positive pressure valves

1978-05-30

1980-07-01

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

137559, 251 65, F16K 1506

Patent

active

042101743

ABSTRACT:
A positive pressure valve is provided having a valve member with a central magnetically attracted member spaced from and coaxial with a rod like magnet, said valve member and magnet being relatively movable to adjust the magnetic attraction between them and thus the opening pressure of the valve.

REFERENCES:
patent: 2206425 (1940-07-01), Perman
patent: 2646071 (1953-07-01), Wagner
patent: 3331389 (1967-07-01), Kirk
patent: 3360007 (1967-12-01), Haidek

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