US PATENT SUBCLASS 411 / 225
.~.~.~.~.~ 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}
204  DF  .~ Structure is coaxial, distinct member (e.g., washer, key, or nut portion) that restricts nut piece {7}
222  DF  .~.~ Internally threaded locking member (e.g., jam nut) {1}
223  DF  .~.~.~ Including means associated with at least one of the nuts for restricting rotation therebetween {11}
224  DF  .~.~.~.~ Key received in part in each of the nuts {2}
225.~.~.~.~.~ Including a plastically deformable portion


DEFINITION

Classification: 411/225

Including a plastically deformable portion:

(under subclass 224) Device wherein the member includes 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 member 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 preventing relative rotation.