US PATENT SUBCLASS 411 / 283
.~.~.~.~.~ Impacted areas

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}
259  DF  .~ Comprising a thread lock {18}
276  DF  .~.~ Having the internally threaded element distorted {2}
277  DF  .~.~.~ Radially inward distortion {3}
281  DF  .~.~.~.~ Of circumferentially spaced areas of continuous periphery {2}
283.~.~.~.~.~ Impacted areas {1}
284  DF  .~.~.~.~.~.~> Located on the flats of a polygonally shaped element

DEFINITION

Classification: 411/283

Impacted areas:

(under subclass 281) Device wherein the spaced, deformed portions are the result of impacts applied in the vicinity of each portion, thus causing the threads there to be forced inwardly.