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US 4,728,075 AGranted
Control of fluid flow
OwnerJoseph R. Paradisinventor
Life of this patent
Estimating the term…
Abstract
Method and apparatus for the control of fluid flow using a metering plug that is positioned in a control channel and restricted to movement along the longitudinal axis of the channel. Closure control is exercised by moving the plug with a micrometer adjustable control ring into closer proximity with a tapered channel that has a profile corresponding to that of the plug.
Claims5
A flow control valve comprising
- a base member having at least one guide recess therein and a flow channel therethrough;
- a transitional member having a flow channel therethrough and at least one finger that extends into said guide recess, said transitional member being axially movable with respect to the base member;
- a flow control ring for axially moving the transitional member with respect to said base member;
- and a tapered metering plug positioned within the channel between the two members, with the taper of said metering plug being identical to that of said low channel and extending over a shorter interval;
- said metering plug having a blunt end insertable into said flow channel in order to enhance the precision control overflow through said channel provided by the movement of said metering plug into said channel.
2 more elements
Dependencies are inferred from the claim text.