US PATENT SUBCLASS 411 / 277
.~.~.~ Radially inward distortion

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.~.~.~ Radially inward distortion {3}
278  DF  .~.~.~.~> With discrete means carried by the element for producing the distortion {1}
280  DF  .~.~.~.~> Of cantilevered segments (e.g., castellated end)
281  DF  .~.~.~.~> Of circumferentially spaced areas of continuous periphery {2}

DEFINITION

Classification: 411/277

Radially inward distortion:

(under subclass 276) Device wherein the internally threaded element is deformed in a direction toward, and generally perpendicular to, the longitudinal axis of the element.