Hydro-formed T-fitting
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United States of America Patent
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Jan 10, 2017
Grant Date -
Nov 14, 2013
app pub date -
Jul 22, 2013
filing date -
Sep 18, 2009
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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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