US PATENT SUBCLASS 60 / 420
.~ Having condition responsive control in a system of distinct or separately operable outputs or output drive units

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


60 /   HD   POWER PLANTS

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
420.~ Having condition responsive control in a system of distinct or separately operable outputs or output drive units {7}
421  DF  .~.~> With plural pump or motive fluid source relationships selected by multiway valve
422  DF  .~.~> Independently actuatable outputs with condition responsive means insuring sufficiency of feed of motive fluid
423  DF  .~.~> Including means for controlling or for reversing input pump drive
424  DF  .~.~> Serially connected motors controlled to establish parallel operation or to by-pass a motor means of the series
425  DF  .~.~> Condition responsive means establishes number of motor sections driving a common output
426  DF  .~.~> Speed of, pressure in, or position of one output motor or motor section controls another
427  DF  .~.~> With manual control or selection of motor, motor speed or motor load

DEFINITION

Classification: 60/420

(under subclass 325) Apparatus having a plurality of separately operable motors, motor pistons, motor rotors or means delivering energy externally of the apparatus and including a control for the apparatus responsive to a condition of the system or to an external condition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

340, for a coaxial impeller and turbine system in which plural turbines drive relatively movable output members.

374, for a self-cycling system having a plurality of correlated independently movable output members.