Closure member

Details Closure member Closure member

1979-05-29

1981-06-30

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

13753319, 251 65, F16K 1502

Patent

active

042757592

ABSTRACT:
A closure member comprises a casing having a plurality of stripe recesses as fluid passages, a valve seat inserted in said casing having a flange portion for sleeving a ring magnet and a high strength material adopted on the flange portion, a piston made of metal or magnetic material to be attracted by the ring magnet, an inner tube inserted in said casing having a central fluid passage, a plurality of supports for positioning the piston and a plurality of stripe protrusions coincident with the stripe recesses of the casing and a base cover attaching to the casing.

REFERENCES:
patent: 966390 (1910-08-01), Elder
patent: 2646071 (1953-07-01), Wagner
patent: 2800142 (1957-07-01), Champion
patent: 3076417 (1963-02-01), Rhodes

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