Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2006-03-07
2006-03-07
Pham, Hai (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
Reexamination Certificate
active
07009633
ABSTRACT:
A system for laser printing indicia on a moving web has been disclosed, wherein said system includes an apparatus having one or more laser beam(s) as source(s) of laser energy, a jet of air, an extraction unit and a tunnel with an open entry side and an exit side, and wherein, in the laser marking method, the product flow in the tunnel is directed from the open entry side to the exit side of the tunnel; the jet of air, skimming on the laser-impinging surface, from the entrance of the tunnel in the moving direction of the web; and wherein extraction of the product flow is performed at the exit side of the tunnel.
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Agfa-Gevaert
Guy Joseph T.
Nexsen Pruet , LLC
Pham Hai
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