US PATENT SUBCLASS 411 / 937
.~.~ Distorted nut

Current as of: June, 1999
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411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

924  DF  COUPLED NUT AND BOLT {13}
929  DF  .~ Thread lock {12}
937.~.~ Distorted nut {2}
937.1  DF  .~.~.~> Predistorted thread pitch or diameter
937.2  DF  .~.~.~> Post-distorted thread pitch or diameter

DEFINITION

Classification: 411/937

Distorted nut:

Art collection under art collection 929 in which either the whole or a part of the nut is distorted or changed in shape before, during, or after its application to the bolt, so that the threads of the nuts grip the threads of the bolt.