US PATENT SUBCLASS 411 / 18
.~.~ With wedge-shaped expander

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}
16  DF  .~ Helical anchor {2}
18.~.~ With wedge-shaped expander

DEFINITION

Classification: 411/18

With wedge-shaped expander:

(under subclass 16) Subject matter wherein a tapered member is provided for expanding the spirally wound sleeve.

SEE OR SEARCH THIS CLASS, SUBCLASS:

24+, for an anchor or holding device provided with a double wedge oppositely acting expander.

44+, for a sleeve type anchor or holding device having a tapered expander.

75+, for an anchor or holding device provided with sliding wedge surfaces.