US PATENT SUBCLASS 60 / 439
.~.~ Device acts on intermediate reactive rotor to modify speed ratio or direction

Current as of: June, 1999
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60 /   HD   POWER PLANTS

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
435  DF  .~ Having a mechanical clutch or brake device in the power train {5}
439.~.~ Device acts on intermediate reactive rotor to modify speed ratio or direction {1}
440  DF  .~.~.~> Condition or direction responsive device

DEFINITION

Classification: 60/439

(under subclass 435) Apparatus including a motive fluid control member in the assembly that can rotate independently of the pump or motor of the system and its rotation being controlled by a clutch or brake device attached to the frame to permit or prevent rotation, the release or immobilization of the member being effective to change the speed ratio of the pump to the motor or to reverse the direction of the motor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

341+, for a coaxial impeller turbine unit having a brake or clutch controlling movement of a flow guide located in the impeller turbine flow path.