US PATENT SUBCLASS 411 / 319
.~.~ And including a plastically deformable portion

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}
315  DF  .~ With a member in the nature of a rotation preventing key movable laterally into engagement with the threaded elements {2}
319.~.~ And including a plastically deformable portion {1}
320  DF  .~.~.~> Comprising an elongated element divided longitudinally (e.g., a cotter pin)

DEFINITION

Classification: 411/319

And including a plastically deformable portion:

(under subclass 315) Device wherein the pin, wedge, clip, dog, etc., has at least one region which, when bent or otherwise reshaped, is adapted to remain in its changed configuration (i.e., the elastic limit of the material from which the pin, etc., is formed has been exceeded).

(1) Note. The reshaping may relate to the retaining of the member in its operative position, rather than to the member's function of restricting rotation.