US PATENT SUBCLASS 411 / 315
.~ With a member in the nature of a rotation preventing key movable laterally into engagement with the threaded elements

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

DEFINITION

Classification: 411/315

With a member in the nature of a rotation preventing key movable laterally into engagement with the threaded elements:

(under subclass 190) Device provided with one or more distinct members having a rotation restricting capability and ordinarily comprising a pin, wedge, clip, dog, etc., which pin, etc., is inserted by movement from one side of the threaded elements toward, and more or less normally to, their longitudinally axis and usually is received in part in each of the threaded elements, thus tending to form a positive interlock therebetween.