Patents by Inventor Stig Sandberg

Stig Sandberg 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: 5237762
    Abstract: A grabbing device (14) of a type to be connected to an arm or boom of an excavating machine of the like is arranged as separate unit having coupling means for optional coupling thereof to the bucket or the like tool (33) arranged adjacent to or beyond the grabbing device. The grabbing device may be used both with the bucket attached and without same and the bucket or the like unit may be used coupled beyond the grabbing device or directly to coupling means of the arm or boom (1). Between the grabbing device and the coupling means of the arm or boom there is interconnected a rotation tilting apparatus (6) allowing swinging and tilting of the grabbing device (14) relative to the arm or boom (1) and its coupling means.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: August 24, 1993
    Inventor: Stig Sandberg