Patents by Inventor Ilkka Randen

Ilkka Randen 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).

  • Patent number: 4591200
    Abstract: The present invention relates to a lifting wedge which is intended in particular for lifting a paper roll in the vertical position, and which is made up of a substantially cylindrical lifting wedge part (1) having the cross sectional shape of the core hollow of the paper roll, a lifting belt (2) fitted to the lifitng wedge, and friction surfacing (3). The lifting wedge accompanies during transport the roll to be lifted.Previously known lifting devices of this type consist of lifting belts which are passed around paper rolls in the vertical position. The assembling of the belts and fitting them around the rolls is relatively difficult.The lifting wedge part (1) according to the invention is divided in its longitudinal direction preferably into three wedge-shaped sections. The lifting belt (2) encircles that wedge section which has a larger cross sectional surface in its lower part, and forms a lifting loop above the wedge section.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: May 27, 1986
    Assignee: Lassila & Tikanoja Oy
    Inventor: Ilkka Randen