Apparatus for cutting out windows in envelopes
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United States of America Patent
Stats
-
Jun 9, 1987
Grant Date -
N/A
app pub date -
May 6, 1985
filing date -
May 11, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Windows are cut into envelopes and bags, in a machine with a feed device ing transport rollers for cut-out envelope blanks or for a web, a cutting roller, a tool cooperating with the cutting roller and at least one suction roller for further transport, are arranged in a window cutting station of the machine. The envelope material is moved along a straight line tangentially to the point of cutting out the windows and is then further conveyed in the peripheral direction of the cutting roller. The blanks with the windows cut therein and the cut-out waste are separately grasped by suction and removed.
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