E.i. Dupont De Nemours and Company

Dupont Teijin Films U.S. Limited Partnership

Heinz Kuhlmann

Eckehard Fiedler

Bert Van Den Bedem

A method and apparatus for transporting a web having at least one table element including at least one inclined blowing device ( ), at least one rounded hump ( ), and at least one sucking device ( ) between the at least one blowing device ( ) and the at least one rounded hump ( ). The rounded hump ( ) allows the sucking of air without any risk of tearing or breaking the web ( ). The limited amount of air ensures high transport forces, and increased efficiency of the transport system.

Web transport system

The invention relates to the chopping of thin webs, and notably to the chopping of edges trims of thin webs. It proposes a chopping device for thin webs, comprising an input section ( ) for receiving the web to be chopped; an accelerating section ( ) for accelerating the front end of the web received from the input section. Preferably, the device also comprises at least one puncturing means or knife ( ) located between the input section and the accelerating section. The invention also relates to a process for chopping thin webs, comprising the steps of providing an incoming web and accelerating the front end of the incoming web so as to tear off said front end, e.g. by causing the web to contact a puncturing device.

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Stadtbredimus, Luxembourg

Heinz Kuhlmann