US PATENT SUBCLASS 411 / 310
.~.~.~.~ By integral, interference-producing deviations from a standard thread shape


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}
308  DF  .~.~ Involving dissimilarities in the sectional configuration of the threads {1}
309  DF  .~.~.~ Resulting in the deformation of one thread by the other {1}
310.~.~.~.~ By integral, interference-producing deviations from a standard thread shape {1}
311  DF  .~.~.~.~.~> Located in the vicinity of the crest or the root of the thread


DEFINITION

Classification: 411/310

By integral, interference-producing deviations from a standard thread shape:

(under subclass 309) Device wherein the distortion is produced by the presence, on at least one of the threads, of regions, integral with the material of the thread, which extend beyond, at one or more locations, the cross-sectional shape of a standard (e.g., a 60< deg.
(1) Note. Included herein is art wherein the deviation comprises the use of different flank angles on the threads

(i.e., the included angle of one of the threads is not the same as the included angle of the other thread).