US PATENT SUBCLASS 416 / 45
.~.~ Valve element directly movable by centrifugal force

Current as of: June, 1999
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416 /   HD   FLUID REACTION SURFACES (I.E., IMPELLERS)

31  DF  WITH CONTROL MEANS RESPONSIVE TO NON-CYCLIC CONDITION SENSING, CENTRIFUGAL ACTUATION, TORQUE OR THRUST {9}
44  DF  .~ Impeller rotation speed responsive {6}
45.~.~ Valve element directly movable by centrifugal force

DEFINITION

Classification: 416/45

(under subclass 44) Apparatus wherein the means which initiates the control operation comprises a valve member which is mounted so as to rotate about an axis and assume various positions directly in accordance with the rate of rotation, the control being initiated when the valve member reaches a predetermined position.