Air-free pouch packaging method

Details Air-free pouch packaging method Air-free pouch packaging method

1976-01-19

1977-06-07

McGehee, Travis S.

Package making

Interrelated or safety controls

53 11, 53110, 53112B, B65B 3104

Patent

active

040274560

ABSTRACT:
A method of packaging a substantially air-free product in an air-free pouch by first flattening and squeezing air from the pouch thereby reducing the pouch headspace prior to moving the pouch into a substantially air-free atmosphere. The pouch is then opened in the air-free atmosphere, is filled with an air-free product, is sealed within the air-free atmosphere, and is subsequently discharged therefrom. The opening of the pouch is aided, and additional air is purged from the pouch, by directing jets of high pressure air-free gas into the pouch during opening and filling of the pouch.

REFERENCES:
patent: 2311707 (1943-02-01), Stewart
patent: 2649671 (1953-08-01), Bartelt
patent: 3381446 (1968-05-01), Marchand
patent: 3619975 (1971-11-01), Johnson et al.

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