US PATENT SUBCLASS 318 / 687
.~.~ Linear movement motors

Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

560  DF  POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) {23}
671  DF  .~ With particular motor control system responsive to the "actuating signal" {10}
687.~.~ Linear movement motors

DEFINITION

Classification: 318/687

(under subclass 671) Subject matter in which the particular motor control is used to control a linear movement motor.

(1) Note. For a definition of "linear-movement" motor, see Linear Movement Motors of the class definition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

135, and the subclasses specified in the Notes to the definition of that subclass for other linear-movement motor systems.

686, for reciprocating or oscillating motor systems under subclass 671.

SEE OR SEARCH CLASS

310, Electrical Generator or Motor Structure, 12+, for linear electric motors.