Apparatus for cutting out windows in envelopes

Details Apparatus for cutting out windows in envelopes Apparatus for cutting out windows in envelopes

1985-05-06

1987-06-09

Schran, Donald R.

Cutting

With product handling means

Means to move, guide, or permit free fall or flight of product

83100, 83 24, 83165, 83911, B31B 1914, B31B 2114, B26F 138

Patent

active

046711520

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.

REFERENCES:
patent: 3103842 (1963-09-01), Winkler et al.
patent: 3106121 (1963-10-01), Novick
patent: 3172321 (1965-03-01), Schrader
patent: 3186274 (1965-06-01), Winkler et al.
patent: 3527127 (1970-09-01), Stovall
patent: 3548696 (1970-12-01), Hornung
patent: 3611855 (1971-10-01), Thousand

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