Patents by Inventor Gerrit Van Voorthuysen

Gerrit Van Voorthuysen 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).

  • Device for transporting sticky or wet material
    Patent number: 7922384
    Abstract: The invention concerns a device for transporting sticky and/or wet material in horizontal direction comprising a shaftless spiral or screw having an outside diameter and an inside diameter, a stationary trough having a prismatic shape with at least at its underside a cylindrical part with a liner for supporting the outside diameter of the shaftless spiral or screw, and drive means for rotating the shaftless spiral or screw around a stationary straight centerline, the stationary trough having an inlet opening for receiving transportable material and at its underside an outlet opening for discharging transported material. According to the invention the shaftless spiral or screw is provided over its active length between the inlet opening and the outlet opening along the centreline with a pipe which is rotatable in the inside diameter of the shaftless spiral or screw.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: April 12, 2011
    Assignee: M. Linc Inc.
    Inventors: Gerrit Van Voorthuysen, Raymond Newman