US PATENT SUBCLASS 318 / 618
.~.~.~.~ Tachometer feedback

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

Internet Version by PATENTEC © 1999      Terms of Use


318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

560  DF  POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) {23}
611  DF  .~ With stabilizing features (e.g., anti-hunting, damping) {8}
615  DF  .~.~ By auxiliary feedback loop {1}
616  DF  .~.~.~ Rate feedback {2}
618.~.~.~.~ Tachometer feedback

DEFINITION

Classification: 318/618

(under subclass 616) Subject matter in which the means to sense the rate is an electrical tachometer.

SEE OR SEARCH THIS CLASS, SUBCLASS:

312, and 326, for electric motor speed control which employ electrical tachometers or equivalent devices for speed control.