US PATENT SUBCLASS 29 / 716
.~.~.~.~ Self-piercing work part

Current as of: June, 1999
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29 /   HD   METAL WORKING

700  DF  MEANS TO ASSEMBLE OR DISASSEMBLE {55}
709  DF  .~ With control means energized in response to activator stimulated by condition sensor {4}
714  DF  .~.~ Responsive to work or work-related machine element {4}
715  DF  .~.~.~ With means to fasten by deformation {1}
716.~.~.~.~ Self-piercing work part

DEFINITION

Classification: 29/716

Self-piercing work part:

(under subclass 715) Apparatus including means to force a cutting edge of one work part to form or enlarge a hole in a second work part and force the first work part through or into the second part, whereby the parts are secured together.

SEE OR SEARCH THIS CLASS, SUBCLASS:

432+, for the corresponding process.

798, for means to drive a self-piercing work part not including a control means.

SEE OR SEARCH CLASS

227, Elongated-Member-Driving Apparatus, for means for forcing an elongated nail or rivet into a work part.