Valve
AssigneeThe BOC Group, Inc.
InventorThomas Alan Karlicek
Life of this patent
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Abstract
A valve body having a circular throat and three vanes mounted for rotation within the circular throat of the valve body. The three vanes comprise two outlying vanes, each having two opposed circular peripheral edges configured so that one of the two opposed circular peripheral edges fits against a circular throat when the vanes are in the closed position. A central vane, preferably of hour glass configuration, is located between the two outlying vanes so that all three vanes nest within the circular throat and against one another when the valve is a closed position. Each of the vanes has a symmetrical axis of rotation and is mounted within the circular throat of the valve body so as to rotate about the symmetrical axis.
Claims8
A valve comprising:
- a valve body having a circular throat;
- and
- three vanes mounted for rotation within said circular throat of said valve body between an open position and a closed position, closing off said circular throat;
- said three vanes comprising two outlying vanes, each having two opposed circular peripheral edges configured so that one of said two opposed circular peripheral edges fits against said circular tat when said vanes are in their said closed position, and a central vane located between said outlying vanes;
- each of said tree vanes configured to have a symmetrical axis of rotation and being mounted within said circular tat of said valve body so as to rotate about the said symmetrical axis of rotation.
Dependencies are inferred from the claim text.