Method and apparatus for manufacturing a bag having an...

Details Method and apparatus for manufacturing a bag having an... Method and apparatus for manufacturing a bag having an...

2005-05-24

2005-05-24

Smith, Scott A. (Department: 3721)

Package making

Methods

Enclosing contents within progressively formed web means

C053S552000, C053S450000, C053S456000, C053S551000, C053S370600

Reexamination Certificate

active

06895729

ABSTRACT:
A method and apparatus for forming a bag provides a tube of material that is passed over a former. A portion of the tube is folded over the former to define the rim of the bag. Portions of the rim are then welded. The apparatus includes arms that move transverse to the tube. The arms carry crimping fingers that pivot to fold the tube up and in over the former.

REFERENCES:
patent: 3543477 (1970-12-01), Leasure
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patent: 6042526 (2000-03-01), Baumer
patent: 6485177 (2002-11-01), Bell
patent: 6510673 (2003-01-01), Visona′ et al.
patent: 6679034 (2004-01-01), Kohl et al.
patent: 20030051442 (2003-03-01), Post et al.
patent: 20030054929 (2003-03-01), Post et al.

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