US PATENT SUBCLASS 416 / 49
.~.~ Including reset or manual override of control

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}
49.~.~ Including reset or manual override of control {1}
50  DF  .~.~.~> Of centrifugal weight governor

DEFINITION

Classification: 416/49

(under subclass 44) Apparatus including means actuated by a human attendant to (1) return the control system to a datum point or (2) override or prevent operation of the control system.