Patents by Inventor Rudolf Van Dalfsen

Rudolf Van Dalfsen 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).

  • Scooping apparatus, vehicle and coupling plate therefore
    Patent number: 5311684
    Abstract: A scooping apparatus is disclosed having a carrying frame coupled with a vehicle.A cage having two cage parts, namely a scooping part and a lid are carried by the frame. The rotation axis of the lid part relative to the scooping part extending on a radial distance from the rotating axis of the cage amounts to zero to two thirds of the radius of the cage.A first driving means for rotatably driving at least one of the cage parts. A second driving means for moving the cage parts between the closed position and the open position such that a rotation axis of the lid part relative to the scooping part extending on a radial distance from a rotating axis of the cage amounting to zero to two thirds of the radius of the cage.
    Type: Grant
    Filed: February 10, 1993
    Date of Patent: May 17, 1994
    Inventor: Rudolf Van Dalfsen