Handling: hand and hoist-line implements – Hoistable receptacle
Patent
1981-08-12
1987-12-29
Marbert, James B.
Handling: hand and hoist-line implements
Hoistable receptacle
383121, 383125, B65D 2900, B65D 8856
Patent
active
047156350
ABSTRACT:
A flexible container for transporting and storing bulk goods, preferably arranged so as to be liftable by its upper end, is constructed from a tubular blank so as to include a shell, a bottom and a filling aperture, the pleats being formed in the shell having lower parts which are folded so as to be coplanar with the container bottom. In order to both strengthen the relatively weak region of the container bottom and to enable the manufacture of the container in an automated fashion, the tubular container blank is closed by a bottom seam located substantially in the central region of the container bottom and the upper plane of each pleat is folded into the plane of the container bottom and affixed to the lower plane of the respective pleat by a connecting seam. The upper and lower opposed planes of the pleats may be affixed to each other by a seam formed in their respective marginal areas and also may be affixed to each other at substantially central regions thereof by additional connecting seams which are substantially parallel to the seam connecting the lower plane of the pleat to the container bottom.
REFERENCES:
patent: 3397622 (1968-08-01), Goodwin
patent: 4136723 (1979-01-01), Skaadel et al.
Marbert James B.
Oy W. Rosenlew AB
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