Valve system

Details Valve system Valve system

1994-12-22

1995-11-21

Fox, John C.

Valves and valve actuation

With means to increase head and seat contact pressure

With positive reduction

251162, F16K 1226

Patent

active

054679656

ABSTRACT:
A butterfly valve comprises: an elongate valve body (1) having a flange (2) at one end, a valve plate (4), operative between an open and closed position, forming a seal with the said flange (2) in the closed position, and a valve plate support structure including: a location cam (14) seated within an abutment plate housing (10), and operable to effect movement of the valve plate (4); a shaft (5), operable to effect movement of the cam by rotational movement of the shaft; and an abutment plate (12), formed within the abutment plate housing (10); wherein rotational movement of the shaft (5) will result in independent rotational movement and linear movement of the said location cam (14) within the abutment plate housing (10) and operable to effect independent rotational movement and linear movement of the valve plate.

REFERENCES:
patent: 2892609 (1959-06-01), Bibbo
patent: 3141648 (1964-07-01), White
patent: 3780983 (1973-12-01), Topbaur et al.
patent: 4013264 (1977-03-01), Friedell

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