Tamper resistant closure

Details Tamper resistant closure Tamper resistant closure

2005-02-15

2005-02-15

Kim, Eugene (Department: 3721)

Package making

Methods

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

C053S136500, C053S138700

Reexamination Certificate

active

06854245

ABSTRACT:
A method and apparatus for forming a tamper resistant seal on a plastic bag containing a loaf of bread or other products is disclosed. The neck of the bag is flattened, gripped between a pair of lower inboard and out board gathering belts adjacent opposite sides of a segment of the neck of the bag. A row of perforations is formed in the bag neck as the bag moves adjacent a roller provided with teeth or cutting elements. Heated air jets are directed to engage the segment of the bag bridging between the inboard and the outboard of the bag bridging between the inboard and the strip from the bag.

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patent: 2064270 (1993-09-01), None
patent: WO 99 03731 (1999-01-01), None

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