Bag-in-container assembly and method

Details Bag-in-container assembly and method Bag-in-container assembly and method

2005-02-15

2005-02-15

Smith, Scott A. (Department: 3721)

Package making

Methods

Plural covers

C053S403000, C053S405000, C053S434000, C053S467000, C053S469000, C053S471000, C053S472000

Reexamination Certificate

active

06854246

ABSTRACT:
A flexible bag is positioned in a rigid container, such as a fifty-five gallon drum, and the bag is filled through its spout with flowable product, such as tomato paste. The bag is then expanded in the container to be substantially rigid and thereby reduce film movement and resultant flex cracking. A lid is sealed onto the container and a vacuum drawn from between the bag and the container, to, in turn, expand the bag. Gas volume needs to be present in the bag before the vacuum is applied so that the gas in the bag can expand from the vacuum on its outside. Once expanded, the container can be shipped.

REFERENCES:
patent: 1517978 (1924-12-01), Giese
patent: 4054161 (1977-10-01), Alack
patent: 4635814 (1987-01-01), Jones
patent: 4925055 (1990-05-01), Robbins et al.
patent: 5046634 (1991-09-01), McFarlin et al.
patent: 5794670 (1998-08-01), LaFleur
patent: 6536620 (2003-03-01), Moran

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