Patents by Inventor Josef Kaiser

Josef Kaiser 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: 4395191
    Abstract: An excavator-hoist construction vehicle includes an undercarriage with a superstructure supported on it for rotation about a vertical axis. A boom is hinged to the superstructure and supports a tool for digging, lifting or the like. Two pair of supporting legs are attached to the undercarriage, one pair extending forwardly and the other rearwardly. The supporting legs are adjustably movable in the vertical and horizontal directions. Each of the ends of the supporting legs spaced outwardly from the undercarriage are arranged to support a wheel. The wheels on one pair of the supporting legs can be steered and at least one wheel on the supporting legs can be driven.
    Type: Grant
    Filed: December 11, 1980
    Date of Patent: July 26, 1983
    Inventor: Josef Kaiser