US PATENT SUBCLASS 242 / 334.3
.~.~.~ Tachometer-type signal device

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

Internet Version by PATENTEC © 1999      Terms of Use


242 /   HD   WINDING, TENSIONING, OR GUIDING

324  DF  UNWINDING AND REWINDING A MACHINE CONVERTIBLE INFORMATION CARRIER (E.G., MAGNETIC TAPE OR PHOTOGRAPHIC FILM) {13}
334  DF  .~ Carrier speed or tension control {5}
334.2  DF  .~.~ Diverse signal inputs {1}
334.3.~.~.~ Tachometer-type signal device

DEFINITION

Classification: 242/334.3

Tachometer-type signal device:

(under subclass 334.2) Subject matter wherein one of the control input sources counts turns of a rotatable element adapted to turn in proportion to a rate of movement of the carrier.