US PATENT SUBCLASS 411 / 200
.~.~.~ Member comprises key movable laterally into engagement with threaded elements

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}
191  DF  .~ Structure contacts nut piece side and is fixed to the nut {3}
197  DF  .~.~ Structure is coaxial, distinct member (e.g., washer) that restricts nut piece when fixed {3}
200.~.~.~ Member comprises key movable laterally into engagement with threaded elements

DEFINITION

Classification: 411/200

Member comprises key movable laterally into engagement with threaded elements:

(under subclass 197) Device wherein at least one of the distinct members ordinarily comprises a pin, wedge, clip, dog, etc., which is inserted by movement from one side of the threaded elements toward, and more or less normally to, their longitudinal axis, which pin, etc., usually is received in part in each of the threaded elements and thus forms a positive interlock therebetween.