Package making – Interrelated or safety controls
Patent
1974-12-23
1976-05-18
McGehee, Travis S.
Package making
Interrelated or safety controls
53 30S, B65B 3102
Patent
active
039568679
ABSTRACT:
In the present method a package is produced by forming a pouch in a first foil thereby stretching the material thus creating latent shrinking forces. The package is sealed using a second flat foil or a foil having a pouch extending to the opposite direction as the first pouch. The sealing is done inside an evacuated space and the heating of the first foil in order to shrink the pouch is done prior to or at the same time as the vacuum space is aerated.
REFERENCES:
patent: 2991600 (1961-07-01), Lancaster
patent: 3286835 (1966-11-01), Crane
patent: 3621588 (1971-11-01), Grocke
patent: 3634993 (1972-01-01), Pasco et al.
patent: 3673760 (1972-07-01), Canamero
Esterhammer Josef Hartmut
Utz Kastulus
Vetter Arthur
Alkor-Werk Karl Lissmann KG
Fasse Wolfgang G.
McGehee Travis S.
Multivac Sepp Haggenmueller KG
Roberts Willard W.
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