Norsk Hydro, A.s.

Bjarne Omdal

Eirik I Myklebust

Olaf Strand

Anders Juel

Johannes Skaadel

Jens Svendsen

Erik Jonsgard

Roger Lysfjord

Johs Skaadel

Flexible container with improved bottom and top

A flexible intermediate bulk container includes at least one lifting loop and a double base made of two bottom parts that can be direct extensions of sidewalls of the container. The bottom parts have openings positioned directly one above the other, thus forming an opening in the base. In between the bottom parts it is arranged a closure of flexible material with projections on each side of one end. The projections of the closure are fastened to the base by joints or seams. The other end of the closure has a handle. The closure can be made of woven fabric of similar or the same type as that of the container.

Flexible intermediate bulk container with means for partly of complete

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

Flexible container with separate lifting area

A container includes an outer load carrying bag or container with lifting loop(s) and at least one filling opening, and a liner having two sides closed with welds spaced from the inner side edges to form skirts which allow air in the liner to escape through openings between the welds. The welds are interrupted and overlapped by a distance a, preferably such that 0%&lt;a&lt;50% of the liner's total side length. The liner is placed in the outer container such that the welded seams with the skirts are parallel to the vertical axis of the container and are fastened to side seams thereof. The liner has an opening for filling of bulk material, and it may have a gusset which preferably has a height of up to 1/4 of the flat width of the liner between the welds.

Container for transport and storage of bulk material

Flexible container with integrated lifting loops having separate cargo

Fluidizable material is filled into a container by a simple and safe filling operation enabling the further transport of the filled container to be simplified. A plane during the filling operation and immediately thereafter is adjusted to an angle (y) of at least 2.degree. to the horizontal and a support is adjusted to an angle (X) of at least 2.degree. to the vertical, such that the container leans back against the support when it is filled with fluidizable material and does not slide off the bottom plane even when its lifting loops are released from a holding device. The bottom plane and the support can comprise a unit in which the bottom plane extends at about 90.degree. to the rear wall of the support. The angles x and y can be equal or different and preferred values for these angles are 5.degree.-15.degree..

Method of filling fluidizable material in flexible containers

A method and an apparatus for filling bulk material into flexible containers. The filling is carried out through a filling pipe or spout while the container is hanging on a hook. The impervious part of the container, which may be in form of an inner bag, is fastened around the spout and kept in place during the filling operation without any special fastening means. This is obtained by first hanging at least one lifting loop on the hook before the pipe is put into the container. Then the remaining loops are hooked onto the hook during simultaneous or subsequent filling of the container with air. The loops are secured together while the container is hanging on the hook. Thus, the container will be made ready for further transport as soon as it is filled and its impervious bag is closed. The apparatus comprises a batch weigher, storage bin having an outlet into a funnel with a pipe for supplying air. The funnel is connected to a filling pipe which is horizontally movable and placed close to a holding device comprising the hook which is movable both horizontally and vertically.

Method and apparatus for filling of flexible containers

A single piece of woven material is folded in half along a fold line forming a sack top. Bottom free edges are sewn to form a bottom seam. Side free edges are sewn to form side seams which are spaced from the fold line. A single slit is formed from the fold line between the side edges. The slit does not cut lengthwise extending strips of the woven material, such that upon lifting the sack by lifting loops between the slit and the side edges, the lifting stress is evenly distributed among all of the lengthwise strips.

Large size sack and methods for the formation thereof

A single elongated piece of material has a major longitudinal dimension and is folded along plural fold lines extending transverse to the major longitudinal dimension, thereby forming plural wall sections and plural bottom sections. The plural bottom sections are overlapped to form a plural ply bottom of the container. The wall sections are lined with edges thereof being juxtaposed, and at least portions of the juxtaposed edges are joined to form corner edges of the container. Certain of the fold lines form an upper portion of the container. Longitudinally opposite free end edges of the piece of material are joined. The edges of the bottom sections which extend transverse to the fold lines are free and substantially unattached.

Flexible container for transportation and storage of bulk materials

A single piece of material is formed to have enclosing side walls, the bottom edges of which are cut to form at least four flaps which are direct extensions of the side walls. The lower edges of pairs of the flaps are joined to form joints which cross at a single point.

Flexible container for transportation and storage of bulk material

Granular material, such as a fertilizer, is continuously or intermittently fed into one or several launching tubes and compressed air pulses are introduced at regular time intervals behind each quantity which at any time has been fed into the tube(s), so that part quantities of the material are shot out at a certain rate and over a certain range.

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Porsgrunn, Norway

Bjarne Omdal