Air clamp stabilizer for continuous web materials

Paper making and fiber liberation – Processes and products – Lead strip forming and/or guiding

Reexamination Certificate

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C162S289000, C226S007000, C226S097300, C242S615110, C406S088000, C406S197000

Reexamination Certificate

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06936137

ABSTRACT:
A device for non-contact support of a continuous moving web of material employs an air clamp stabilizer that includes a Coanda slot and a backstep that is located downstream of the direction of the airflow extending from the Coanda slot. This configuration permits a Coanda jet to expand and to create an additional suction force. Vortex formation may also occur which further contributes to the strength of the suction force. As the web passes the stabilizer, an area of the web material rides on an air bearing that is maintained above the stabilizer surface and downstream of the backstep.

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