US PATENT SUBCLASS 411 / 207
.~.~.~.~ With a discrete, resilient element

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  DF  .~.~ 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}
207.~.~.~.~ With a discrete, resilient element {1}
208  DF  .~.~.~.~.~> And key engageable with aligned formations (e.g., grooves) in axially outwardly facing portion of each threaded element

DEFINITION

Classification: 411/207

With a discrete, resilient element:

(under subclass 206) Device provided with a distinct element or device of a resilient nature for positioning or retaining the jointed pin, hinged plate, bendable rod, etc.