Valves and valve actuation – Pivoted valves
Patent
1977-01-31
1978-02-21
Nilson, Robert G.
Valves and valve actuation
Pivoted valves
251 85, 251357, F16K 118
Patent
active
040748898
ABSTRACT:
A rotary control valve has a plug in the form of a cup shaped shell mounted on a bracket which is rotatable about an axis orthogonal to and offset from the central axis of a ring seat. This plug is connected to the rotatable actuating bracket by means of a threaded pin and nut so that the plug position can be adjusted with respect to the ring seat. Proper adjustment of the pin and nut allows the plug to be mounted in a fixed position on the bracket and enables the plug to be brought into and out of fluid tight sealing engagement with the ring seat without any bending or deformation taking place in the actuating bracket. The obtaining of this desired tight sealing engagement is aided by displacing the bracket axis from the plug center of curvature in the direction of the position occupied by the plug when in its sealing position, and by making the plug position adjustable along the bracket axis.
REFERENCES:
patent: 2247773 (1941-07-01), Dunn
patent: 2850259 (1958-09-01), Larson
patent: 3042358 (1962-07-01), Anderson
patent: 3191906 (1965-06-01), Zeigler et al.
patent: 3272474 (1966-09-01), Pro
patent: 3379408 (1968-04-01), Lowrey
patent: 3521659 (1970-07-01), Seger
patent: 3623696 (1971-11-01), Baumann
patent: 3749358 (1973-07-01), Bates
patent: 3876179 (1974-04-01), Baumann
patent: 3963211 (1976-06-01), Myers
Bodenstein George E.
Burton Lockwood D.
Honeywell G.m.b.H.
Marhoefer Laurence J.
Nilson Robert G.
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