Damper valve having an adjustable seat

Details Damper valve having an adjustable seat Damper valve having an adjustable seat

1995-06-07

1996-02-27

Fox, John C.

Valves and valve actuation

Rotary valves

Butterfly

251306, F16K 1228

Patent

active

054942578

ABSTRACT:
A damper valve includes a base, a valve element pivotally mounted on the base and adjustable valve seat portions on opposite sides of a pivot axis, the valve seat portions being positioned on opposite sides of the blade. Each valve seat portion includes a stationary member fixed to the base, an adjustable element movable relative to the stationary member, and bolts fixing the adjustable element to the stationary member. In addition, adjustment devices are provided for moving the adjustable element toward the valve element to provide a precise fit along the entire length of the valve seat.

REFERENCES:
patent: 2083154 (1937-06-01), Kinzie et al.
patent: 3144040 (1964-08-01), White
patent: 3197174 (1965-07-01), Killian
patent: 3393697 (1968-07-01), Fawkes
patent: 3554216 (1971-01-01), Piguet
patent: 3814380 (1974-06-01), Kormos et al.
patent: 4006883 (1977-02-01), Hillsheimer
patent: 4220314 (1980-09-01), Lynch
patent: 4398696 (1983-08-01), Szilagyi et al.
patent: 4582080 (1986-04-01), Stock
patent: 5327928 (1994-07-01), Thomason

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