US PATENT SUBCLASS 400 / 242
.~ Ribbon spool or mount therefor

Current as of: June, 1999
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400 /   HD   TYPEWRITING MACHINES

191  DF  INCLUDING INTERPOSED INKING DEVICE (E.G., RIBBON) FOR RECORD-MEDIUM {15}
242.~ Ribbon spool or mount therefor {4}
243  DF  .~.~> Universally adaptable
244  DF  .~.~> Including ribbon-reversing indicator or device on spool or mount
245  DF  .~.~> Including magnetic retainer
246  DF  .~.~> Spool for full-page-wide ribbon

DEFINITION

Classification: 400/242

Ribbon spool or mount therefor:

(under subclass 191) Subject matter wherein the transfer-medium* is a ribbon* in the form of an elongated tape that is spirally wound around a cylindrical member, and wherein significance is attributed to said member or to holding the member and the ribbon wound thereon on a typewriter.

(1) Note. The member (i.e., spool) may have flanges extending radially to retain the spiral convolutions of the ribbon wound thereon, or may be a core having no flanges.

SEE OR SEARCH THIS CLASS, SUBCLASS:

203, for a spool mounted within a platen*.

207, for a package for ribbon spool(s) simplifying mounting the ribbon and spool on a typewriter.

SEE OR SEARCH CLASS

242, Winding, Tensioning, or Guiding,

600+, and 118+ for a spool to support wound material.