US PATENT SUBCLASS 411 / 249
.~.~.~.~.~ Including structure interfitting within a thread for less than a full turn thereof

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

190  DF  HAVING STRUCTURE TO RESTRICT ROTATION OF THREADED, MATING PIECES (E.G., NUT LOCK) {13}
204  DF  .~ Structure is coaxial, distinct member (e.g., washer, key, or nut portion) that restricts nut piece {7}
246  DF  .~.~ By thread-gripping locking element {5}
247  DF  .~.~.~ Resilient grip {1}
248  DF  .~.~.~.~ Split ring {1}
249.~.~.~.~.~ Including structure interfitting within a thread for less than a full turn thereof

DEFINITION

Classification: 411/249

Including structure interfitting within a thread for less

than a full turn thereof:

(under subclass 248) Device wherein the split ring includes a thin, radially inwardly facing projection which enters into a turn of the thread of the threaded element and follows that thread through something less than 360< deg.
(1) Note. The projection may be discontinuous (e.g., a series of inwardly directed prongs or tongues).