Method and apparatus for conveying a workpiece through a workstation and specifically for conveying a lithographic printing plate through a developing station and for applying a developer solution
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United States of America Patent
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N/A
Issued Date -
Apr 17, 2003
app pub date -
May 24, 2002
filing date -
Oct 11, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method and apparatus for conveying a thin, planar, flexible work piece through a work station with the work piece being held flat as it is conveyed. Specifically, a method and apparatus for developing an imaged coating on a lithographic printing plate involves the application of a thin film of developer solution to the imaged coating and allowing time for the dissolution to take place as the plate is conveyed through the developer across a flat horizontal platen. The spent developer solution is then removed and discarded to waste. Therefore, fresh developer solution of the proper composition is always being used to develop each plate. A film of water between the plate and the conveyor belt holds the plate in position and flat on the conveyor. The fresh developer solution is stored and delivered out of contact with the atmosphere to prevent atmospheric-caused degradation.
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