Norsk Hydro, A.s.

Anders Juel

Bjarne Omdal

Eirik I Myklebust

Olaf Strand

Odd F Rasmussen

Roger Lysfjord

Erik Jonsgard

Flexible container with improved bottom and top

A flexible intermediate container has at least one improved lifting loop formed by joining integral extensions of a side wall structures. The extensions are at their upper free ends cut to form at least two flaps which are positioned above or below the extensions on both sides of a folding line or seam, thus forming a lifting loop joint comprising frictional area of overlapping layers of fabric material. Friction therebetween is secured by a frictional agent such 2500 glue or hot-melt and/or by a mechanical device. The lifting loop can be gathered together and surrounded by at least one band or sleeve.

Flexible container having improved lifting loops

A flexible container is formed of a single piece of material and includes a bottom, a top and side walls, with two opposite openings in top portions of the side walls below the top. The material of the top is folded or gathered from the opposite openings toward the center of the top, thereby forming an integral lifting loop formed of integral extensions of the side walls. The lifting loop extends over the center of the container between the opposite openings. The thus folded or gathered material is joined at an uppermost lifting area of the lifting loop, thereby forming a permanent lifting handle.

Flexible container to be filled with bulk material and method for its

A flexible container for filling, transport and storage of bulk material is made from at least one piece of base material. The bottom of the container is formed from at least four paired, preferably equally large, flaps which are direct extensions of the container side walls. The bottom flaps are formed by cut lines in the piece of material, and the angles .alpha. and .beta. of alternate flaps converge toward the center of the bottom. The sum of top angles .alpha. and .beta. of the flaps is less than 360.degree., such that the container bottom formed by joints of the flaps is downward slightly cone or funnel shaped when the container is filled. The sum of the angles .alpha. and .beta. of the flaps preferably is between (240.degree.-280.degree.) and 360.degree.. The container bottom will be substantially square or rectangular, depending on whether .alpha.=.beta. or .alpha..noteq..beta.. Each of the bottom seams can terminate at a distance from the center of the bottom such that there are no seams in a minor area around the center, and in this area there can be arranged a discharge spout.

Flexible container

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Porsgrunn, Norway

Anders Juel