US PATENT SUBCLASS 411 / 288
.~.~.~.~ Of axially spaced threaded sections

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}
285  DF  .~.~.~ Axial distortion {4}
288.~.~.~.~ Of axially spaced threaded sections {1}
289  DF  .~.~.~.~.~> Coiled spring

DEFINITION

Classification: 411/288

Of axially spaced threaded sections:

(under subclass 285) Device wherein the distortion is applied to portions of the thread which are spaced apart in a longitudinal direction by undeformed thread portions.