Patents by Inventor Jan Asselbergs

Jan Asselbergs 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).

  • Digging wheel for a suction dredger vessel
    Patent number: 4302893
    Abstract: A digging wheel for a suction dredger vessel which digging wheel rotates about a horizontal axis and has at its circumference a plurality of closely spaced partly overlapping scoops while the suction mouth in the interior of the wheel has an extension which extends into the scoops and fits through the outlet of the scoops. The effective passage between the leading edge of a scoop and the outlet edge of a preceding scoop is smaller than the outlet and any further passage towards the pump is of the same or larger magnitude than the outlet of a scoop.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: December 1, 1981
    Assignee: IHC Holland N.V.
    Inventors: Johannes van den Elshout, Jan Asselbergs
  • Digging wheel for a suction dredger vessel
    Patent number: RE32382
    Abstract: A digging wheel for a suction dredger vessel which digging wheel rotates about a horizontal axis and has at its circumference a plurality of closely spaced partly overlapping scoops while the suction mouth in the interior of the wheel has an extension which extends into the scoops and fits through the outlet of the scoops. The effective passage between the leading edge of a scoop and the outlet edge of a preceding scoop is smaller than the outlet and any further passage towards the pump is of the same or larger magnitude than the outlet of a scoop.
    Type: Grant
    Filed: March 6, 1985
    Date of Patent: March 31, 1987
    Assignee: IHC Holland N.V.
    Inventors: Johannes van den Elshout, Jan Asselbergs