LOBULAR DRIVE SYSTEM WITH INTERFERENCE FIT AND METHOD AND APPARATUS FOR FABRICATING SAME
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Jan 1, 2009
app pub date -
Jun 24, 2008
filing date -
Jun 29, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A fastener which includes a recess that includes a plurality of alternating lobes and recesses, where each of the flutes and lobes is twisted or angled. The fastener can be driven using a conventional multi-lobular driver. Alternatively, a driver which also has angled or twisted flutes and lobes can be used to engage the recess and drive the fastener. A punch pin includes a head that has a plurality of alternating lobes and recesses that are twisted or angled. The head of the punch pin is configured to punch the recess into the head of the fastener. A device retains the punch pin such that the punch pin can rotate out of the recess after the punch pin punches the recess into the head of the fastener.
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