Patents by Inventor Roger Lysfjord

Roger Lysfjord has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Flexible container with improved bottom and top
    Patent number: 5192133
    Abstract: The present invention relates to a flexible intermediate bulk container (FIBC) for transportation, storage and lifting of bulk material. The container has improved bottom and top construction, and it comprises a hose shape blank made from a round woven fabric or from at least one piece of flat woven fabric joined at its bottom and/or top end after folding the blank in three or more longitudinal folds each consisting of two layers. The length of the joint(s) is less than 1/4 of the container circumference. The FIBC has a filling opening, possibly a liner and might have a lifting loop which is formed by integral extensions of the side walls of the blank.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: March 9, 1993
    Assignee: Norsk Hydro a.s.
    Inventors: Anders Juel, Olaf Strand, Bjarne Omdal, Roger Lysfjord