Patents by Inventor John A. Endres

John A. Endres 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).

  • Remote controlled sludge removal system
    Patent number: 6141810
    Abstract: A movable sediment and sludge removal and cleaning system which can be inserted into the access pipe of a storage tank, the apparatus including a chassis or platform, a pump connected to the chassis, two track assemblies connected to the chassis movable relative to the chassis in the same plane as the chassis, movable tracks connected to each track assembly to drive the apparatus over sediment and sludge, and a motor for driving the track assemblies and pump.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: November 7, 2000
    Inventors: Henry W. Allen, Daryl T. Brown, John A. Endres