Patents by Inventor Erwin Horrer

Erwin Horrer 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: 4213507
    Abstract: A grading vehicle including a bridging vehicle chassis between a front axle and its corresponding wheels and a rear vehicle section having at least one axle with corresponding rear wheels, and control equipment mounted on said chassis, which equipment provides for adjustment in all directions of a grading device suspended therefrom and mounted between the front axle and the rear section of the vehicle, which grading device is connected by a universal joint to the rear section of the vehicle which carries a driving engine, the grading device includes a scraping blade which is of length corresponding substantially to the width of the vehicle, and the front wheels being driven wheels.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: July 22, 1980
    Inventors: Erwin Horrer, Gustav Leidinger