US PATENT SUBCLASS 411 / 549
.~.~.~ Outwardly extending projection cooperates with socket member having ramp engagement means

Current as of: June, 1999
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411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

337  DF  HEADED FASTENER ELEMENT WITH NUT, WASHER, SECURING MEANS OR CAP {12}
347  DF  .~ Headed fastener element with securing means and biasing spring {2}
349  DF  .~.~ Securing means rotatable about fastener element or rotatably engageable by tool-rotatable headed fastener element {3}
549.~.~.~ Outwardly extending projection cooperates with socket member having ramp engagement means {3}
550  DF  .~.~.~.~> Including means providing axial adjustment {1}
552  DF  .~.~.~.~> And discrete biasing spring
553  DF  .~.~.~.~> Similar, opposed ramp surfaces

DEFINITION

Classification: 411/549

Outwardly extending projection cooperates with socket member having ramp engagement means:

(under subclass 349) Subject matter wherein a portion of the securing means protrudes from the headed elongated fastening means shank along a line substantially perpendicular to the longitudinal axis of the headed fastening means and wherein the securing means further includes a socket member having in the form of a ramp surface adapted to mate with protruding portion.