US PATENT SUBCLASS 242 / 600
.~ Spool or core

Current as of: June, 1999
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242 /   HD   WINDING, TENSIONING, OR GUIDING

570  DF  COIL HOLDER OR SUPPORT (E.G., SPINDLE, DISPENSER, OR SPOOL) {6}
600.~ Spool or core {12}
601  DF  .~.~> With cover
602  DF  .~.~> With convolution or layer separator {2}
603  DF  .~.~> With multiple coiling areas
604  DF  .~.~> Openwork {1}
605  DF  .~.~> Stackable
606  DF  .~.~> With single or dominant flange
607  DF  .~.~> Particular component connection {4}
610  DF  .~.~> Particular material or material treatment {4}
611  DF  .~.~> With brake or drive formation {2}
612  DF  .~.~> With particular bearing formation
613  DF  .~.~> Particular hub or core formation {2}
614  DF  .~.~> Flange feature {1}

DEFINITION

Classification: 242/600

Spool or core:

(under subclass 570) Subject matter wherein the structure for supporting wound material is a portable article of manufacture or component thereof for directly bearing coiled material, usually by winding, and for temporarily storing the material until it is removed, usually by unwinding.

(1) Note. Here the term spool is used in a generic sense to include a holder for temporarily storing a coil including a bobbin, card, cop, core (flangeless spool), drum, skein holder, etc., but excludes wound inductances, resistors, filters, etc. where the spool becomes a permanent component of a composite article, or where the spool acts as a form for deforming an elongated material removed from the spool as a completed coil.

(2) Note. Some difficulty may arise in distinguishing a spool from a reeling device or spindle. The reeling device usually has both a supporting structure and drive, although in its simplest form, a nonrotatable hand reeling device may be distinguished only by having an additional support such as a hand grip. The spindle usually has more elaborate bearing or drive coupling than a spool, and frequently has a spool supporting surface, but generally lacks fixed axial material containment structure such as an end flange.

SEE OR SEARCH THIS CLASS, SUBCLASS:

118+, for a strand spool, per se.

322, for a particular spool in a fishing reel.

326.3, for a particular spool in endless tape or film cartridge; 328.1, and 329.1, for a spool with removable or expandable hub;

345+, for a particular spool in tape and film cartridges;

376, for a particular spool of a spring powered reeling device;

393, for a peripherally driven spool of a reeling device;

407+, for a a particular spool in a reeling device of general use.

SEE OR SEARCH CLASS

84, Music,

122+, 133, and 150 for a music roll spool combined with a drive or tracking board peculiar to a musical instrument or subcombination.

492, Roll or Roller, for a roll detail that may be analogous to a spool.

493, Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web,

954, for manufacturing a spool from paperlike material.