US PATENT SUBCLASS 411 / 284
.~.~.~.~.~.~ Located on the flats of a polygonally shaped 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}
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  DF  .~.~.~.~.~ Impacted areas {1}
284.~.~.~.~.~.~ Located on the flats of a polygonally shaped element


DEFINITION

Classification: 411/284

Located on the flats of a polygonally shaped element:

(under subclass 283) Device wherein the outer periphery of the internally threaded element is defined in cross section by a geometric figure comprising a plurality of angularly related flat sides and wherein the impacted areas are located on respective ones of those sides.