Patents by Inventor Abraham van der Veen

Abraham van der Veen 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: 4480569
    Abstract: The invention relates to a container for the ground material removed by a ground working device, for example, a mud plough or a suction device from the bottom of a watercourse. Such a container is known in the form of a compartment trough moved by the tugboat of the mud plough or the hopper barge. A disadvantage of such a container is that it is heavy and hence transportable only with difficulty while it is expensive and cannot be emptied by a simple procedure. The invention has for its object to obviate these disadvantages and provides to this end a container of the kind set forth in the preamble constructed in the form of a flexible bag that can be connected with the ground working device.
    Type: Grant
    Filed: January 12, 1983
    Date of Patent: November 6, 1984
    Inventors: Abraham van der Veen, Jelle van der Veen