Patents by Inventor Robert E. Uittenbogaard

Robert E. Uittenbogaard 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).

  • Method for dredging rock with a pick and water jet combination
    Patent number: 4491368
    Abstract: A method for breaking out rock from a rock bottom under water, in which a cutting means having at least one pick is moved through the rock bottom. During the cutting procedure at least one water jet is directed from a nozzle towards the disintegrating zone in front of the pick rake surface and the starting energy of the jet is selected relative to the distance to be traversed through the water and relative to the nozzle diameter to such an extent that a cavitation cone forms around the water jet which continues up to the point where the jet hits the rock bottom.
    Type: Grant
    Filed: May 1, 1984
    Date of Patent: January 1, 1985
    Assignee: Stichting Speurwerk Baggertechniek
    Inventor: Robert E. Uittenbogaard