US PATENT SUBCLASS 60 / 700
.~ Motors intercontrolled responsive to angular speed differential of rotatable output shafts

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

698  DF  SYSTEM HAVING PLURAL MOTORS OR HAVING DIVERSE TYPES OF ENERGY INPUT {13}
700.~ Motors intercontrolled responsive to angular speed differential of rotatable output shafts {2}
701  DF  .~.~> Hydraulic or pneumatic intercontrol system
702  DF  .~.~> Electrical intercontrol system

DEFINITION

Classification: 60/700

(under subclass 698) Apparatus, wherein the relative rotational speed or angular position of the output shafts of a plurality of independently operable motors or devices is continually or intermittently sensed, said sensed differential effecting a control to maintain a predetermined operating relationship of the motors.

SEE OR SEARCH CLASS

91, Motors: Expansible Chamber Type,

171, for plural expansible chamber motors synchronized in response to a sensed difference in position.

318, Electricity: Motive Power System,

68+, for the control of the relative speed of plural electrical motors; and subclass 85, for the synchronizing or phasing control of plural electrical motors. 416, Fluid Reaction Surfaces (i.e., Impellers),

34, for plural distinct impellers having a synchronizing control.