US PATENT SUBCLASS 411 / 208
.~.~.~.~.~ And key engageable with aligned formations (e.g., grooves) in axially outwardly facing portion of each threaded element

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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

DEFINITION

Classification: 411/208

And key engageable with aligned formations (e.g., grooves) in axially outwardly facing portion of each threaded element:

(under subclass 207) Device wherein the jointed pin, hinged plate, bendable rod, etc., when in its locking position, rests in a channel, recess, slot, etc., formed in the axially outwardly facing portion of the internally threaded element and also in a similar formation, representing a prolongation of the first formation, in the corresponding portion of the externally threaded element.