Method for producing drip irrigation pipes
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United States of America Patent
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Jun 4, 2013
Grant Date -
Mar 10, 2011
app pub date -
May 5, 2009
filing date -
May 5, 2008
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Abstract
In a method for producing drip irrigation pipes, a tube body is extruded from a thermoplastic synthetic material and provided with a wall. The tube body is led directly and in non-contact fashion to a pre-cooling chamber in which the tube body is pre-cooled and in which metering elements are pressed on to the wall and connected to the wall. The tube body is sized to a final diameter and further cooled in a cooling chamber.
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