Filling apparatus

Details Filling apparatus Filling apparatus

2005-10-14

2008-11-11

Desai, Hemant M (Department: 3721)

Package making

Progressively seamed cover web or web folds

With closing of web between package units

C053S052000, C493S019000

Reexamination Certificate

active

07448189

ABSTRACT:
An object of the present invention is to provide a filling apparatus capable of reliably correcting the position of an overlap portion. The filling apparatus includes a forming ring including a plurality of forming rollers and disposed at a predetermined position along the traveling direction of a packaging material (11) in order to deform the packaging material (11) from a web-like shape to a tubular shape, and a longitudinal sealing device (41) for longitudinally sealing opposite side edges of the tubular packaging material (11). One of the forming rollers includes a flange (71or84) which is moved axially by means of a moving mechanism section (72). In this case, even when, within the forming ring, a side edge portion of the packaging material (11) of a certain size impinges on the flange (71or84), the flange (71or84) is caused to move accordingly to thereby avoid interfering with correction on the position of the overlap portion (LP). Therefore, the position of the overlap portion (LP) can be reliably corrected.

REFERENCES:
patent: 4067170 (1978-01-01), Yates, Jr.
patent: 5767491 (1998-06-01), Ohlsson et al.
patent: 6397557 (2002-06-01), Bassissi et al.
patent: 6666002 (2003-12-01), Otsuka et al.
patent: 6751925 (2004-06-01), Kinoshita et al.

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