Method of making self-piercing nuts
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 21, 2006
Grant Date -
Nov 18, 2004
app pub date -
Apr 7, 2004
filing date -
May 12, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A raw parallelepiped metal piece is pressed into a closed mold to provide a nut blank that has a generally square pilot portion (14) for piercing a metal panel, the nut blank having a pair of flanges (16) that continue from opposite side walls (15) of the pilot portion. Then, the nut blank is coined to form ridges (20) extending along and integral with opposite upper edges of the side walls (15), before pressed within an open mold so that the ridges are swaged out sideways to form shoulders (21). A lateral groove (22) is defined between below each shoulder and in the side wall. A rough bore (23) will be formed axially through the pilot portion (14), before tapped to have a female thread (24) in the inner periphery of the bore.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully