Device and method for making packaging bags

Details Device and method for making packaging bags Device and method for making packaging bags

2005-05-03

2005-05-03

Huynh, Louis (Department: 3721)

Package making

Methods

Forming a cover adjunct or application of a cover adjunct to...

C053S450000, C053S051000

Reexamination Certificate

active

06886310

ABSTRACT:
An apparatus for forming reclosable bags, wherein said bags are formed from a continuously film (12) fitted with at least one closure tape (60), wherein the apparatus comprises a set of heat-sealed jaws (30) provided transversely relative to the travel direction of the film (12), at least one sensor (100) that if the tape (60) is present or not on the film in a predetermined position relative to the heat-sealed jaws, and means suitable to reposition correctly the film in regard of the heat-sealed jaws when the sensor detects a default in the position of the tape, so as to eliminate drift due to the elasticity of the film.

REFERENCES:
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patent: 4722166 (1988-02-01), Dieckow
patent: 4745731 (1988-05-01), Talbott et al.
patent: 4876842 (1989-10-01), Ausnit
patent: 5401533 (1995-03-01), Borland
patent: 5930983 (1999-08-01), Terminella et al.
patent: 6047521 (2000-04-01), Terminella et al.
patent: 6216423 (2001-04-01), Thieman

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