Gate valve having O-ring seal

Details Gate valve having O-ring seal Gate valve having O-ring seal

1975-02-27

1976-02-10

Rosenthal, Arnold

Valves and valve actuation

Reciprocating valve

Gate

251360, 277189, F16K 302

Patent

active

039374424

ABSTRACT:
In a knife gate valve, an elastomer O-ring is held in an annular groove in a face of a valve seat by cotter pins having their eyes embedded in the O-ring and their shanks extending through the valve seat and clinched over. The eyes are adhered to the O-ring by vulcanization of the O-ring.

REFERENCES:
patent: 2980388 (1961-04-01), White
patent: 3085784 (1963-04-01), Dumm
patent: 3207471 (1965-09-01), Williams
patent: 3384342 (1968-05-01), Passer
patent: 3654382 (1972-04-01), Rubright

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