Trim and pierce press assembly and method of use
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United States of America Patent
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Dec 6, 2011
Grant Date -
Oct 15, 2009
app pub date -
Apr 11, 2008
filing date -
Apr 11, 2008
priority date (Note) -
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Abstract
A press assembly including a die assembly having a trim die defining an annular cavity wherein the trim die is fixed to the press assembly, a punch assembly including a trim punch having an annular boss that is correspondingly shaped to the annular cavity, wherein the trim punch is movable relative to the die assembly, and an ejector assembly including an ejector arm, wherein the ejector arm is mounted to the punch assembly. The object is pressed into the annular cavity of the trim die by the annular boss of the trim punch when the annular boss is slidably received in the annular cavity, and the ejector arm pushes the object upwardly within the annular cavity of the trim die when the annular boss of the trim punch is removed from the annular cavity.
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