US PATENT SUBCLASS 416 / 34
.~.~ Synchronizing


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}
33  DF  .~ Plural distinct impellers having related control {1}
34.~.~ Synchronizing


DEFINITION

Classification: 416/34

(under subclass 33) Apparatus wherein at least two operatively related impellers are caused to function in a substantially identical manner to maintain a balanced condition.

(1) Note. This subclass includes the synchronization of impellers in which the adjustment of one or more impellers is in response to a condition of another impeller (known as the master) or wherein plural impellers are so adjusted in response to a master control unit.

SEE OR SEARCH CLASS

60, Power Plants,

700+, for synchronizing of plural motors and see (2) Note in this class (416), subclass 120.

318, Electricity: Motive Power Systems,

41+, and 85 for synchronizing electric motors, and see (2) Note in subclass 120 of this class (416). 361, Electricity: Electrical Systems and Devices,

243+, and a synchronization of rotary shafts, and see (2) Note in subclass 120 of this class (416).

370, Multiplex Communications,

304+, for multiplex systems which include rotary distributors with means for synchronizing them.

375, Pulse or Digital Communications,

354+, for synchronizing the operation of a receiving and

transmitting mechanisms.