US PATENT SUBCLASS 411 / 54
.~.~ Expansible element moved relative to stationary 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}
44  DF  .~ Including sleeve and distinct tapered expander (e.g., anchor bolt type) {9}
54.~.~ Expansible element moved relative to stationary expander {1}
54.1  DD  .~.~.~> Spread by pressing element over initially inserted expander (e.g., push type)

DEFINITION

Classification: 411/54

Expansible element moved relative to stationary expander:

(under subclass 44) Subject matter wherein expansion is effected by the expander being held in a fixed position as the sleeve is axially moved relative thereto.