Former for forming a rectangular bag tube
AssigneePolymer Packaging, Inc.
InventorsWilliam E. Post, Larry L. Lanham
Life of this patent
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Abstract
A former allows rectangular tubes of material to be quickly formed for creating bags having rectangular cross sections. The former provides a transition between a round former and a rectangular former so that the material used to form the bag is initially wrapped into a tube around a round former so that the material does not tear on the corners of the former. The round tube of material is then drawn down over the former of the invention to change the round tube to a rectangular tube that may be formed into the bag.
Claims9
A former apparatus used to form a rectangular tube of material that is used to manufacture a rectangular bag;
- the former apparatus comprising:
- a round former adapted to form a tube of the material having a round cross section;
- a rectangular former adapted to support a tube of the material having a rectangular cross section;
- and
- a transition former disposed between the round former and the rectangular former;
- the transition former adapted to form a rectangular tube of material from the round tube of material as the round tube passes over the transition former;
- wherein the transition former includes an upper portion having a round cross section and a lower portion having a rectangular crosss section.
Dependencies are inferred from the claim text.