Drain valve

Details Drain valve Drain valve

1989-02-17

1989-11-14

Walton, George L.

Fluid handling

With repair, tapping, assembly, or disassembly means

With provision of alternate wear parts

222501, 251100, 251144, 251287, 251291, F16K 31528, F16K 4300

Patent

active

048800295

ABSTRACT:
A push-type, lightning-protected fuel tank drain valve has a non-conductive plastic poppet that cannot be pushed upwardly axially far enough to open its port until the poppet is first rotated about its axis.

REFERENCES:
patent: 1182375 (1916-05-01), Hutson
patent: 1271625 (1918-07-01), Snyder
patent: 2569615 (1951-10-01), Link
patent: 3643917 (1972-02-01), Griffiths et al.

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