Gas-operated integrated punching device with plate presser
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United States of America Patent
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Aug 19, 2014
Grant Date -
Sep 16, 2010
app pub date -
Nov 13, 2008
filing date -
Nov 13, 2007
priority date (Note) -
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Abstract
A gas-operated integrated punching device with plate presser, including: a tubular containment body closed hermetically by a bottom and by a head that is perforated for the passage of a piston-operated plate presser moving within the tubular body; the plate presser being crossed coaxially by a punch connected to the tubular body; a compression and expansion chamber for loading pressurized gas being formed between the plate presser and the bottom such that the pressurized gas pushes the plate presser between a first fully extracted configuration with the outer end of the plate presser not in contact with a metal plate to be woked and protruding from the head by such a length as to affect the tip of the punch, and a second configuration at least partly retracted into the tubular body with the outer end of the plate presser in contact with a metal plate being worked.
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