US PATENT SUBCLASS 411 / 320
.~.~.~ Comprising an elongated element divided longitudinally (e.g., a cotter pin)

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  DF  .~.~ And including a plastically deformable portion {1}
320.~.~.~ Comprising an elongated element divided longitudinally (e.g., a cotter pin)

DEFINITION

Classification: 411/320

Comprising an elongated element divided longitudinally (e.g., a cotter pin):

(under subclass 319) Device wherein the element is in the nature of a pin and is split along its longitudinal axis through a substantial portion of its length.