US PATENT SUBCLASS 411 / 270
.~.~.~.~ Including a sleeve or washer type member for carrying the tapered surface and surrounding the segmented 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}
259  DF  .~ Comprising a thread lock {18}
265  DF  .~.~ Including a tapered (e.g., a conical) surface for wedging the internally threaded element against the externally threaded one {1}
266  DF  .~.~.~ Segmented internally threaded element {3}
270.~.~.~.~ Including a sleeve or washer type member for carrying the tapered surface and surrounding the segmented element

DEFINITION

Classification: 411/270

Including a sleeve or washer type member for carrying the tapered surface and surrounding the segmented element:

(under subclass 266) Device wherein the tapered surface is a

portion of a distinct member which is annular, is of a greater or a lesser axial dimension than the internally threaded element, and has an open, axially outwardly facing end to enable insertion and removal of that element.

(1) Note. The tapered surface may be provided with means for engaging, against rotation, the openings which resulted from splitting the internally threaded element.