Thermoformer plug assist drive assembly
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United States of America Patent
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Jul 15, 2008
Grant Date -
Aug 16, 2007
app pub date -
Feb 13, 2006
filing date -
Feb 13, 2006
priority date (Note) -
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Abstract
A plug assist drive assembly for driving plug assists in a thermoforming apparatus includes a single centrally located roller screw assembly enclosed in a housing and driving a third platen mounting the plug assist with a group of guide-drive bars connected to a drive platen which is driven by the roller screw nut. The roller screw assembly is removable by removing screws holding the nut to one hub adapter, the screws accessed through an opening in the housing normally covered with a plate.
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