Package making – Apparatus for forming or partially forming receptacle and... – Forming by opening or setting up collapsed receptacle
Patent
1988-08-12
1989-06-06
Coan, James F.
Package making
Apparatus for forming or partially forming receptacle and...
Forming by opening or setting up collapsed receptacle
53384, B65B 4330
Patent
active
048359483
ABSTRACT:
A chain of bags is disclosed, with each having first and second panels and gusseted sides, each established by first and second gusset panels. The chain of bags is provided with a transverse bottom seal which in the central portion seals together the front and rear panels, and also seals together the inner portion of the gusset panels as well as the front and rear panels for four thicknesses being sealed. At the outer portions, there are only two thicknesses sealed together, namely, the front gusset panels are sealed to the front panel and the rear gusset panels are sealed to the rear panel. This establishes a chain of bags which may be supplied to a bag filling machine whereat conveyor belts form a nip and grip only the outer portion of the rear gusset panels where attached to the rear panel. By this means, the bags of a chain may readily be opened to practically full capacity and then filled. When the bag is closed awnd sealed, it forms a rectangular bag with square ends which may readily by palletized to form a secure and stable pallet load.
REFERENCES:
patent: 3148489 (1964-09-01), Senior et al.
patent: 3269087 (1966-08-01), Cloud et al.
patent: 3321888 (1967-05-01), Kirkhof et al.
patent: 3682051 (1972-08-01), Sengewald
patent: 3915077 (1975-10-01), La Fleur et al.
patent: 4674268 (1987-06-01), Gavronsky et al.
Basic Packaging Systems, Inc.
Coan James F.
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