US PATENT SUBCLASS 318 / 654
.~.~.~ Synchro control transmitter-transformer systems

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

560  DF  POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) {23}
638  DF  .~ With particular "error-detecting" means {13}
652  DF  .~.~ With particular position measuring instruments {7}
654.~.~.~ Synchro control transmitter-transformer systems {1}
655  DF  .~.~.~.~> With synchro differential

DEFINITION

Classification: 318/654

(under subclass 652) Subject matter in which the particular position measuring instrument is a synchro. A synchro is a rotary transformer used for the instantaneous electrical transmission or reception of angular position data of rotating parts. Included herein are systems in which both the command signal and the feedback position signal are obtained from synchros.

SEE OR SEARCH CLASS

336, Inductor Devices,

115+, especially subclasses 122+, for inductor devices of the relatively movable core and coil type.