Shut-off/equalizing valve with molded seals

Details Shut-off/equalizing valve with molded seals Shut-off/equalizing valve with molded seals

1984-08-20

1989-07-04

Schwadron, Martin P.

Valves and valve actuation

Rotary valves

Seat or interface seal

F16K 504

Patent

active

048444138

ABSTRACT:
A shut-off/equalizing valve in which a valve core assembly includes an elastomeric seal element molded onto a cylindrical metallic core member. The core member includes an enlarged barrel portion having a cross bore formed therethrough. The seal element is molded onto the barrel portion and includes first and second circumferential ribs adjacent the ends of the barrel portion, one of which lies adjacent to the openings of the cross bore, and pairs of longitudinal ribs in straddling relation to the openings of said cross bore.

REFERENCES:
patent: 3227174 (1966-01-01), Yost
patent: 3244398 (1966-04-01), Scaramucci
patent: 3450151 (1969-06-01), Heutzenroeder
patent: 3501128 (1970-03-01), Pool
patent: 3521855 (1970-07-01), Jensen
patent: 3545721 (1970-12-01), Shafer
patent: 3575379 (1971-04-01), Hoos
patent: 3729170 (1973-04-01), Lewis et al.
patent: 3771545 (1973-11-01), Allen
patent: 4103867 (1978-08-01), Orr
patent: 4206904 (1980-06-01), Dante
patent: 4494730 (1985-01-01), George

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