Method and apparatus for producing bags in two rows with subsequ

Details Method and apparatus for producing bags in two rows with subsequ Method and apparatus for producing bags in two rows with subsequ

1998-11-24

2000-11-21

Gerrity, Stephen F.

Manufacturing container or tube from paper; or other manufacturi

Control means energized in response to activator stimulated...

Responsive to work material, the product or means engaging...

493926, 493204, 493 11, B31B 100

Patent

active

061495654

ABSTRACT:
A method of and an apparatus for producing stacks of bags where, instead of connecting the position of the foil web, a marking on the foil web is detected and used to correct the positions of the devices which operate on the web. These devices can include a cutter for removing a strip from the upper layer of the flattened blown tubular web, the punch for punching holes in the lower layer, and the device for infolding are among the devices controlled in response to the marking. The latter can be printed on the web as it is unrolled or formed during the extrusion or foil blowing process.

REFERENCES:
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patent: 4758214 (1988-07-01), DeBin
patent: 5000725 (1991-03-01), Bauknecht
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patent: 5085111 (1992-02-01), Birkhofer
patent: 5377570 (1995-01-01), Giljam
patent: 5409441 (1995-04-01), Muscoplat
patent: 5807222 (1998-09-01), Totani
patent: 5860905 (1999-01-01), Bruno
patent: 5876317 (1999-03-01), Sigrist et al.

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