US PATENT SUBCLASS 411 / 38
.~.~ Bulged portion including bend line or reduced section

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}
34  DF  .~ Bulged by axially contracting ends {4}
38.~.~ Bulged portion including bend line or reduced section

DEFINITION

Classification: 411/38

Bulged portion including bend line or reduced section:

(under subclass 34) Subject matter wherein the holding device or anchor is provided either with a deformed area or area having a decreased dimension such that during movement of ends toward each other expansion occurs at these areas.