Valves and valve actuation – Rotary valves – Seat or interface seal
Patent
1994-06-03
1995-06-27
Fox, John C.
Valves and valve actuation
Rotary valves
Seat or interface seal
251360, F16K 122
Patent
active
054273544
ABSTRACT:
A valve comprising a valve body having a through opening that forms a fluid passage and having a wall surrounding a portion of the fluid passage, the wall defining a radially inwardly facing surface, the valve further including a valve element rotatably mounted in the valve body. To retain a valve seat in the valve body, there is provided a ring that has a peripheral surface shaped and sized such that the peripheral surface closely faces the radially inwardly facing surface of the wall when the ring is positioned within the through opening. The ring has a first axially facing side and a second axially facing side and a notch formed in the first side, the ring also having a second, radially outwardly facing annular groove in the peripheral surface that intersects the notch. When the ring is positioned within the through opening of the valve body, the first and second annular grooves are in register and thereby define an annular channel. A wire member having a first end and a second end has its first end removably fixed in the first annular groove such that, when the notch on the ring is in register with the fixed first end, rotation of the ring relative to the valve body in a direction away from the first end of the wire member and along the length of the wire member toward the second end threads the wire member into the channel.
REFERENCES:
patent: 3656714 (1972-04-01), Peterson
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patent: 4560142 (1985-12-01), Burton
patent: 4575046 (1986-03-01), Krause et al.
patent: 4645180 (1987-02-01), Bregman et al.
patent: 4684105 (1987-08-01), Haas, II
patent: 4779841 (1988-10-01), Pupillo et al.
patent: 4836500 (1989-06-01), Pupillo et al.
Frenzel Robert A.
Kusmer Daniel P.
Fox John C.
Keystone International Holdings Corp.
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