Patents by Inventor Ingolv Helland

Ingolv Helland 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).

  • Clamping means for attaching the ends of a conveyor coil spring to a journal pin
    Patent number: 4872547
    Abstract: A device for attaching the ends of a conveyor coil screw, e.g. to a journal pin in a bearing at the end of the conveyor tube of a screw conveyor. A clamping sleeve with inner walls converging from opening in the direction of the other end of clamping sleeve is secured to jounal pin. A wedge shaped clamping member to be inserted into clamping sleeve is secured to a screw bolt at its narrow end. The screw bolt extends through and projects outside an axial bore in journal pin and is provided with a nut at its free end. Clamping sleeve and clamping member together form an annular space to receive and hold end of conveyor coil spring when nut is tightened.
    Type: Grant
    Filed: May 17, 1988
    Date of Patent: October 10, 1989
    Inventor: Ingolv Helland