Expanding gate valve

Details Expanding gate valve Expanding gate valve

1978-08-24

1980-02-19

Weakley, Harold W.

Valves and valve actuation

With means to increase head and seat contact pressure

Gate valve

251167, 251199, F16K 2500

Patent

active

041891279

ABSTRACT:
There is disclosed a valve having an expanded gate comprising a pair of ported segments each having "V"-shaped, oppositely facing inner surfaces which are yieldably urged into conformity with one another by a pair of leaf springs. Each leaf spring is disposed about a pin on one side of a first segment intermediate its ends, and has one of its ends anchored to the first segment, and the other end anchored to the second segment.

REFERENCES:
patent: 2002780 (1935-05-01), Laurent
patent: 2954960 (1960-10-01), Dunbar
patent: 3036813 (1962-05-01), Headrick
patent: 3823911 (1974-07-01), Natno

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