US PATENT SUBCLASS 242 / 325
.~ Endless coiled carrier (i.e., closed loop)

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}
325.~ Endless coiled carrier (i.e., closed loop) {5}
325.1  DF  .~.~> Wound into superposed coil pair
325.2  DF  .~.~> Having carrier responsive control
325.3  DF  .~.~> Reversible
326  DF  .~.~> Cartridge storage {2}
327  DF  .~.~> Particular coil support {3}

DEFINITION

Classification: 242/325

Endless coiled carrier (i.e., closed loop):

(under subclass 324) Subject matter wherein the information-bearing carrier has ends connected together to form a closed band wound into a plurality of convolutely arranged layers.

(1) Note. The carrier is usually unwound from the center of a coil while it winds the outer convolution. Thus, the coil serves as a supply coil portion and a take-up coil portion.

SEE OR SEARCH THIS CLASS, SUBCLASS:

364.1+, for the winding and unwinding in the same direction of a more generalized elongated material.

SEE OR SEARCH CLASS

40, Card, Picture, or Sign Exhibiting, particularly

347, 385+, 470+, 514, and 529 for a winding device combined with a specific register, file, or changing exhibitor.

352, Optics: Motion Pictures, 124, and 128 for endless film winding in a projector.

360, Dynamic Magnetic Information Storage or Retrieval, appropriate subclasses for winding an endless magnetic tape in a tape recorder/player or similar device.