US PATENT SUBCLASS 411 / 27
.~.~ Having rotation preventing 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}
24  DF  .~ Oppositely acting double wedge expander means {3}
27.~.~ Having rotation preventing means {1}
28  DF  .~.~.~> Groove and follower

DEFINITION

Classification: 411/27

Having rotation preventing means:

(under subclass 24) Subject matter wherein cooperating means are provided on one of the tapered elements and on the remainder of the anchor or the holding device to prevent relative rotation therebetween.

SEE OR SEARCH THIS CLASS, SUBCLASS:

49+, for an anchor or device in the form of a sleeve and tapered expander having rotation prevention means.