Patents by Inventor Hans Walraven

Hans Walraven 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).

  • Portable sanitation unit
    Patent number: 6370706
    Abstract: A portable sanitation unit includes a base, a sanitation unit housing having a door and provided with a floor and a sanitation unit pan. A waste tank is situated on the base. Apart from the waste tank, a flushing water tank is also fitted below the waste tank. The walls of the sanitation unit housing consist of panels situated at a distance from each other, the outside panels being connected to each other and resting against each other when the inside panels are fitted at an angle. The ends of the walls are provided with a construction for connecting them together, the construction including mirror-symmetrical lips provided with receiving parts through which a pin is guided.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: April 16, 2002
    Assignee: Atlas Portable Sanitation Industries, Inc.
    Inventor: Hans Walraven