US PATENT SUBCLASS 411 / 247
.~.~.~ Resilient grip

Current as of: June, 1999
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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.~.~.~ Resilient grip {1}
248  DF  .~.~.~.~> Split ring {1}

DEFINITION

Classification: 411/247

Resilient grip:

(under subclass 246) Device wherein the locking member is urged into engagement with the threads by spring biasing means.

(1) Note. The spring biasing means may comprise the inherent resiliency of the material from which the locking member is formed.