Fluid handling – With indicator – register – recorder – alarm or inspection means – Position or extent of motion indicator
Patent
1999-09-23
2000-12-26
Lee, Kevin
Fluid handling
With indicator, register, recorder, alarm or inspection means
Position or extent of motion indicator
137527, 1375278, F16K 3700
Patent
active
061643246
ABSTRACT:
A check valve includes: a valve body having an inlet, an outlet, and an internal cavity, wherein the inlet, outlet and cavity are in fluid communication and define a flow path; a disk positioned within the cavity, a hinge pin assembly pivotally interconnecting the valve body and the disk; a biasing device associated with the disk for biasing the disk toward the closed position; and an indicator associated with the hinge pin assembly and attached to the valve body. The disk pivots about a pivot axis between a closed position, in which the disk contacts a seat surface within the cavity, thereby preventing fluid flow along the flow path between the inlet and the outlet, and an open position, in which the disk does not contact the seat surface, thereby enabling fluid flow along the flow path between the inlet and the outlet. The hinge pin assembly includes: a substantially cylindrical hinge pin having a longitudinally-extending bore formed therein and attached to one of the disk and the valve body; and a substantially cylindrical hinge pin core attached to the other of the disk and the valve body. The hinge pin extends substantially parallel to the pivot axis, and the hinge pin bore is eccentrically located within the hinge pin. The hinge pin core extends within the hinge pin bore substantially parallel to the pivot axis. The hinge pin assembly also includes structure eccentrically and rotatably mounting the hinge pin to one of the valve body and the disk. The indicator, preferably an indicator member, extends through a bore in the hinge pin core and is attached to the disk and an indicating device, such as a rheostat or dial, mounted on the valve body.
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Article entitled Features and Descriptions of Edward One-Piece Tilting Disk Check Valves.
Edward Vogt Valve Company
Lee Kevin
LandOfFree
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