E.i. Dupont De Nemours and Company

Robert Lee Brown

Robert Anthony Marin

Pui-Yan Lin

Melvin H Johnson

Mark A Hackler

Joseph J Duffy

Anandkumar R Kannurpatti

Stephen Cushner

Robert Finley Drury

David Anthony Belfiore

Paul J Arnold

Anandkumar Ramakrishnan Kannurpatti

Melvin Harry Johnson

A method and apparatus for thermal processing a photosensitive element includes heating a composition layer on a flexible substrate to a melt temperature of an unirradiated area of the composition layer and maintaining the flexible substrate at a temperature below the melt temperature while pressing a heated absorbent layer against the heated composition layer, and repeating these steps for multiple cycles. A further embodiment of the method includes a step of cooling the flexible substrate and layer laminate on each cycle to maintain the flexible substrate at the desired temperature below that of the heated composition layer.

Method and apparatus for thermal processing a photosensitive element

The present invention is directed to an apparatus for advancing the leading edge of a corrugated web for positioning the web for a secondary operation, such as a cutting operation to cut a discrete sheet from the web. The web has a plurality of alternating peaks and valleys. The apparatus comprises an endless loop conveyor including a plurality of spaced support bars for contacting the valleys of the web. At least one vacuum source holds the web against the support bars. A motor and a distributed control system repeatedly advance the conveyor and the leading edge of the web from the entrance end to the exit end of the conveyor. A rotary encoder and a sensor sense the presence of a support bar near the position for applying the cutting operation. The vacuum source is de-activated, and at least one pressure source is activated to remove the cut sheet from the support bars. The de-activation of the vacuum source and the activation of the pressure source are done progressively from one end of the conveyor to the other to progressively remove the cut sheet from the conveyor.

System and method for advancing the leading edge of a corrugated web

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Newark, DE, United States of America

Robert Lee Brown