US PATENT SUBCLASS 411 / 73
.~.~.~.~ And longitudinal rib

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

15  DF  HAVING SEPARATE EXPANDER MEANS {13}
44  DF  .~ Including sleeve and distinct tapered expander (e.g., anchor bolt type) {9}
71  DF  .~.~ Sleeve having external gripping means {2}
72  DF  .~.~.~ Circumferential rib {1}
73.~.~.~.~ And longitudinal rib

DEFINITION

Classification: 411/73

And longitudinal rib:

(under subclass 72) Subject matter wherein the gripping means comprises the combination of a circumferential protuberance and a protuberance extending axially of the sleeve.

SEE OR SEARCH THIS CLASS, SUBCLASS:

452+, for an impact driven fastener provided with integral locking means in the form of a longitudinal rib on its shank.