Electrostatic tension control of webs

Winding – tensioning – or guiding – Convolute winding of material – With particular material connection to take-up

Reexamination Certificate

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Reexamination Certificate

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11060074

ABSTRACT:
An electrostatic charging system holds a film web to a roll without significant slippage, thus allowing for proper tension control of the web even with extreme differences in tension upstream and downstream of the motorized roll. The system can electrostatically transfer a web using motorized drum rolls with an internally integrated web severing knife.

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