US PATENT SUBCLASS 242 / 613
.~.~ Particular hub or core formation

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.~.~ Particular hub or core formation {2}
613.1  DF  .~.~.~> Irregularly shaped (e.g., tapered) {1}
613.4  DF  .~.~.~> Reinforcement feature {1}

DEFINITION

Classification: 242/613

Particular hub or core formation:

(under subclass 600) Subject matter wherein particular significance is attributed to the winding surface of the spool.

(1) Note. This and the indented subclasses serve as the locus for developments of specific winding surfaces without regard to the presence or absence of a flange.

SEE OR SEARCH THIS CLASS, SUBCLASS:

602+, for a hub with convolution separating structure.