Package making – Interrelated or safety controls
Patent
1976-07-15
1978-05-30
McGehee, Travis S.
Package making
Interrelated or safety controls
53 29, 53137, 53183, 93 8WA, B65B 6100, B65B 914
Patent
active
040915956
ABSTRACT:
A method and apparatus for continuously forming and filling bag-type packages from a continuous supply of tubular packaging material, such as the plastic mesh tubing or netting manufactured and sold by E.I. Dupont De Nemours & Co. under the trademark VEXAR. The tubular packaging material is drawn over a mandrel from the continuous supply in the rope form in which it is manufactured. The mandrel includes a hollow portion preferably having a cross-sectional area at least as great as that of the desired package. The open end of the tubular packaging material is clamped adjacent the mandrel, and the tubular material is partially slit to form a fill opening adjacent the desired site of the other end of the package, aligned with a corresponding fill opening in the mandrel. A first closure in the form of an elongate label is applied to the open end of the tubular packaging material adjacent the clamp and the desired contents of the package is inserted through the fill openings in the tubular packaging material and the mandrel. Thereafter the tubular packaging material is advanced, removing the partially-formed, filled package from the mandrel while drawing attached additional tubular packaging material onto the mandrel for formation of a subsequent package. The partially-formed, filled package is then severed from the continuous supply adjacent the fill opening and a second closure is applied to form a filled bag-type package. The package is thus filled while still integral to the continuous supply of packaging material, thereby eliminating any handling of unfilled, severed lengths of packaging material.
REFERENCES:
patent: 1521725 (1925-01-01), Stanley
patent: 2861406 (1958-11-01), Holsman et al.
patent: 3492775 (1970-02-01), Rhine et al.
patent: 3760558 (1973-09-01), Kaminsky et al.
patent: 3939628 (1976-02-01), Schjeldahl
Kilner George Earl
Kipers Richard Franc
Pelster Edwin Joseph
Filper Corporation
McGehee Travis S.
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