US PATENT SUBCLASS 411 / 316
.~.~ And utilizing a resilient characteristic of the key, or of a discrete element

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}
315  DF  .~ With a member in the nature of a rotation preventing key movable laterally into engagement with the threaded elements {2}
316.~.~ And utilizing a resilient characteristic of the key, or of a discrete element {1}
317  DF  .~.~.~> With a discrete, resilient element {1}

DEFINITION

Classification: 411/316

And utilizing a resilient characteristic of the key, or of a discrete element:

(under subclass 315) Device wherein either (a) an inherent property of resiliency on the part of the pin, wedge, clip, dog, etc., or (b) the presence of a distinct element having such a capability, is relied upon for either (1) moving the pin, etc., into or from its locking position or (2) keeping the pin, etc., from becoming separated from its operative association with one or the other of the threaded elements.