Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1977-04-01
1978-09-05
Rosenthal, Arnold
Fluid handling
Systems
Flow path with serial valves and/or closures
251315, 251209, 1510406A, F16K 510
Patent
active
041112296
ABSTRACT:
The invention is an improvement for controlling the flow of fluid in a conduit to be used in combination with a ball valve. The ball valve includes a valve body which has a bore extending therethrough and which also has an inlet and an outlet which are axially aligned and adapted to be mechanically coupled to the conduit. The valve body also has an aperture therein. The ball valve also includes a spherical valve member having a port the axis of which is alignable with the axis of the bore of the valve body and a stem having an inner end mechanically coupled to the spherical valve member and an axially outer end which extends through the aperture of the valve body. The ball valve further includes a device for forming a seal between the aperture of the valve body and the stem. The improvement includes a pair of disc carriers which are disposed within the port of the valve member and a pair of discs, with each of the discs being carried by one of the disc carriers with the respective discs being disposed in a contiguous relation. The discs have orifices therethrough which are movable in and out of alignment. The improvement also includes a rotating device for rotating one of the disc carriers relative to the other of the disc carriers which is mechanically coupled to the stem in such a manner that the discs are moved in and out of alignment in order to control the flow of fluid from the inlet to the outlet of the valve body.
REFERENCES:
patent: 2341411 (1944-02-01), Ojalvo
patent: 3207181 (1965-09-01), Willis
patent: 3707161 (1972-12-01), Crawford
Johansen W. Edward
Rosenthal Arnold
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