Raster Graphics Inc.

Gus Andriancen

David Albertalli

Sasan Saadat

In an apparatus for intermittently advancing a web, only one surface of the web contacts moving parts of the apparatus. The apparatus includes, in a direction of movement of the web, a device for supplying the web, a first dancer roller arrangement, an intermittently driven drive roller, a second dancer roller arrangement, and a take-up device. The first and second dancer roller arrangements function to isolate a portion of the web from inertia in other portions of the web, and to provide substantially constant tension on opposite sides of the drive roller to prevent slippage and ensure accurate intermittent advancement of the web by the drive roller. A method for intermittently advancing a web is also disclosed.

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Santa Clara, CA, United States of America

Gus Andriancen