US PATENT SUBCLASS 411 / 71
.~.~ Sleeve having external gripping means

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.~.~ Sleeve having external gripping means {2}
72  DF  .~.~.~> Circumferential rib {1}
74  DF  .~.~.~> Struck from sleeve

DEFINITION

Classification: 411/71

Sleeve having external gripping means:

(under subclass 44) Subject matter wherein the sleeve is provided with gripping means on its exterior surface which is adapted to engage walls of a hole in a part into which the sleeve is inserted which gripping means prevents rotative or axial movement of the sleeve.