US PATENT SUBCLASS 242 / 613.4
.~.~.~ Reinforcement feature

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  DF  .~ Spool or core {12}
613  DF  .~.~ Particular hub or core formation {2}
613.4.~.~.~ Reinforcement feature {1}
613.5  DF  .~.~.~.~> Flangeless core

DEFINITION

Classification: 242/613.4

Reinforcement feature:

(under subclass 613) Subject matter wherein particular significance is attributed to a structural or material component added to strengthen the hub.

SEE OR SEARCH THIS CLASS, SUBCLASS:

118.31, for a reinforcement feature in a cop-type spool.

610.3, for spool fabrication details involving crimping or folding matter that usually strengthens a spool.