Patents by Inventor Theodore Oskar Groeger

Theodore Oskar Groeger 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: 4011919
    Abstract: A vehicle comprising: a) a conventional body with at least 3 pairs of rolls mounted on horizontal axles, which are distributed over the periphery of opposite sides of the body and connected thereto; b) a pair of annular, elastically deformable running tires, each of which encircles all of the rolls at one body's side and suspends them above the ground; c) at least one steerable or revolving wheel, ski and/or float resiliently mounted at another side of the body and d) at least one motor operatively connected to the rolls, tires and/or wheel for driving and braking them.
    Type: Grant
    Filed: September 25, 1975
    Date of Patent: March 15, 1977
    Inventor: Theodore Oskar Groeger