US PATENT SUBCLASS 242 / 356.2
.~.~.~ Step-driven coil

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}
349  DF  .~ With particular drive {7}
356  DF  .~.~ Alternately or differently driven coils {4}
356.2.~.~.~ Step-driven coil

DEFINITION

Classification: 242/356.2

Step-driven coil:

(under subclass 356) Subject matter wherein the drive mechanism includes means for rotating the coils in predetermined increments, usually by an oscillated or reciprocated pawl or rack.