Method and apparatus for manufacturing tube-shaped packages...

Details Method and apparatus for manufacturing tube-shaped packages... Method and apparatus for manufacturing tube-shaped packages...

2006-12-05

2006-12-05

Huynh, Louis K. (Department: 3721)

Manufacturing container or tube from paper; or other manufacturi

Tube making

C493S156000, C493S167000, C493S189000, C053S451000, C053S477000, C053S551000

Reexamination Certificate

active

07144358

ABSTRACT:
Method for manufacturing a tube-shaped package having longitudinal sides and a bottom and made of flexible material, wherein the longitudinal sides of the package are sealed prior to forming the bottom and the bottom is formed by pushing an annular portion of the flexible material inward in a U-shaped arrangement at at least on closed end of the tube-shaped package.

REFERENCES:
patent: 3380646 (1968-04-01), Louis et al.
patent: 3935993 (1976-02-01), Doyen et al.
patent: 5059036 (1991-10-01), Richison et al.
patent: 6120183 (2000-09-01), Buchanan et al.
patent: 6361485 (2002-03-01), Robertson
patent: 6428456 (2002-08-01), Visona′ et al.
patent: 2005/0069230 (2005-03-01), Takahashi et al.
patent: WO 96/10524 (1996-04-01), None

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