US PATENT SUBCLASS 242 / 608.4
.~.~.~.~.~.~ Threaded (e.g., bolt or screw)

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}
607  DF  .~.~ Particular component connection {4}
608  DF  .~.~.~ Flange to hub or another flange {3}
608.2  DF  .~.~.~.~ Mechanical joint or fastener {4}
608.3  DF  .~.~.~.~.~ Discrete fastener (e.g., rivet or staple) {1}
608.4.~.~.~.~.~.~ Threaded (e.g., bolt or screw)

DEFINITION

Classification: 242/608.4

Threaded (e.g., bolt or screw):

(under subclass 608.3) Subject matter wherein the anchoring element is formed with spiral grooves.

SEE OR SEARCH THIS CLASS, SUBCLASS:

118.62, for a screw connection between components of a strand spool.

609.2, for threaded spool components.