Norsk Hydro, A.s.

Olaf Strand

Bjarne Omdal

Anders Juel

Eirik I Myklebust

Jens Svendsen

Roger Lysfjord

Donald M Martin

Erik Jonsgard

Olav Skyllingstad

A flexible intermediate bulk container has a liner which is provided with one or more hollow suspension members for fastening the liner to an outer container in correct relative position. The suspension means members form vents for expulsion of air from the liner during and subsequent to filling with particulate bulk material. The suspension members are preferably tubular to provide vents for the interior of the liner. Such vents may be controlled by one-way valve devices.

Suspension and venting

Flexible container with improved bottom and top

Manufacturing method for a flexible container

A flexible container is formed from a hose-like blank having two diametrically opposite longitudinal slots or holes and at least one intermediate slot or hole. One half of the hose-like blank is inserted through the intermediate slot in such way that one inner sack, one outer sack and at least one integral lifting loop defined by material areas are formed. Two material areas are formed by material sections between the opposite slots and the intermediate slot extending from the outer sack directly into the inner sack. A third material area is formed by a material section between the opposite slots and extending from the outer sack between the first two material area and into the inner sack.

Container for lifting, transportation and storage of bulk material

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

The invention relates to a method and means for filling of bulk material, especially fluidized material, is filled into a flexible container through a filling pipe while the container is hanging on a double, load carrying hook and simultaneously is resting against a supporting plate. Lifting loops of the container are stretched out during the entire filling operation. When filling of the container is completed, the hook and the supporting plate or plane are lowered simultaneously and the plane is also moved sideways, whereby the filling pipe is freed from the container. An external lever is then put into the lifting loop and the hook is opened, whereupon the container can be removed from the filling apparatus without having had any opportunity to tilt. The filling apparatus comprises a double hook with a lower section which can be opened while the hook is still in load carrying operation. The hook is connected to a holding device which preferably is movably connected to the plane for carrying the container. The plane can be moved both horizontally and vertically.

Method and means for filling of bulk 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.

Growing community of inventors

Porsgrunn, Norway

Olaf Strand