T-fitting manufacturing method and tool
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United States of America Patent
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Aug 20, 2013
Grant Date -
Mar 24, 2011
app pub date -
Sep 16, 2010
filing date -
Sep 18, 2009
priority date (Note) -
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Abstract
A punch for forming opposite ends of a copper tube into a T includes a tapered or shovel-nose such that the spacing between the ends of the opposed punches is reduced, thereby reducing the excess copper remaining in the T once formed. A method of forming the fitting employs the shovel-nose punches in a hydro-forming process to accommodate such results.
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