Plastic ball valve stem seal

Details Plastic ball valve stem seal Plastic ball valve stem seal

1992-01-07

1993-08-03

Fox, John C.

Valves and valve actuation

Rotary valves

Ball valve

251214, F16K 506

Patent

active

052322017

ABSTRACT:
A plastic ball valve having improved valve stem sealing means.

REFERENCES:
patent: 3030068 (1962-04-01), Priese
patent: 3228652 (1966-01-01), Antrim
patent: 3239191 (1966-03-01), Widera
patent: 3780986 (1973-12-01), Fugiwara
patent: 3860032 (1975-01-01), Rogers
patent: 4047275 (1977-09-01), Bake et al.
patent: 4203460 (1980-05-01), Priese
patent: 4342444 (1982-08-01), Sonderman
patent: 4531537 (1985-07-01), Smith
patent: 4558874 (1985-12-01), Williams et al.

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