Patents by Inventor Karl-Johan Svahn

Karl-Johan Svahn 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).

  • Screening device
    Patent number: 5964050
    Abstract: A screening device, intended to be detachably fastened on a bucket of a digging machine, which in a suitable way includes a hydraulically operable arm, which is arranged to be detachably fastened on the bucket. The outer portion of the arm including a plate-formed member provided with two hooks, which are intended to mesh with elements on the bucket, which are shaped to these ones, and the plate-formed member being moveably arranged in relation to the arm by hinges and a hydraulic piston cylinder.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: October 12, 1999
    Assignee: Soraker Gravmaskins AB
    Inventor: Karl-Johan Svahn