US PATENT SUBCLASS 411 / 205
.~.~ Member includes pawl- or pivoting key-type portion engaging threads

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}
205.~.~ Member includes pawl- or pivoting key-type portion engaging threads {1}
206  DF  .~.~.~> Utilizing a resilient characteristic of the key, or of a discrete element {1}

DEFINITION

Classification: 411/205

Member includes pawl- or pivoting key-type portion engaging threads:

(under subclass 204) Device wherein at least one of the distinct members ordinarily comprises a jointed pin, a hinged plate, a bendable rod, etc., which is foldable or otherwise turnable into a position in which it usually is received in part in each of the threaded elements for locking one to the other.