US PATENT SUBCLASS 411 / 290
.~.~.~.~ Including a region displaceable generally axially relative to another part of the 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}
276  DF  .~.~ Having the internally threaded element distorted {2}
285  DF  .~.~.~ Axial distortion {4}
290.~.~.~.~ Including a region displaceable generally axially relative to another part of the element {1}
291  DF  .~.~.~.~.~> Having at least one region formed by a cut, slot, etc., across at least one sidewall of the element and extending generally radially into the element

DEFINITION

Classification: 411/290

Including a region displaceable generally axially relative to another part of the element:

(under subclass 285) Device wherein the internally threaded element includes at least one region which is shiftable (e.g., by bending into a void) in a direction more or less parallel to the longitudinal axis of the element with respect to another part (e.g., remainder) of the element for setting

up a binding action between at least some of the threads of that element and the threads of the externally threaded element.

(1) Note. In most instances, the region includes at least one thread for engaging the externally threaded element.

(2) Note. The shifting sometimes results from the advancing movement of the externally threaded element through the internally threaded element, but may result, instead, from the region being collapsed as it is forced against a substructure.