Patents by Inventor Hans Zellinger

Hans Zellinger 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: 4424828
    Abstract: A vehicle for use in the servicing of aircraft, particularly in the removal of feces from toilets of passanger aircraft, comprises a chassis and a body which is mounted on said chassis and has only a small height so that the vehicle can be moved under aircraft portions having only a small ground clearance. A cage comprising a working platform is mounted on the vehicle near its rear end and by means of an upright hydraulic cylinder having a telescopic piston is adapted to be raised from a position of rest, in which the cage is flush with the top of the body. To permit the use of a telescopic piston having large length sections, the hydraulic cylinder extends at least through a major portion of the height of the body. The working platform is disposed on the rear of the hydraulic cylinder.
    Type: Grant
    Filed: December 16, 1981
    Date of Patent: January 10, 1984
    Inventors: Hans Zellinger, Fritz Zellinger