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US 4,011,919 AGranted
Tireroller
OwnerTheodore Oskar Groegerinventor
Life of this patent
Estimating the term…
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.
Claims32
A vehicle comprising:
- a) a chassis having on opposite sides at least three bearing rolls rotatably mounted on substantially horizontal axles, which are distributed over substantially the periphery of said chassis-sides and connected therewith;
- b) a pair of annular, elastic running tires, the outer surface of each tire contacting the ground in use and the inner surface contacting said rolls at each chassis-side, which tires are so deformed by said rolls when bearing the vehicle's weight on the ground, that each tire has several different radii of curvature, all of which remain larger than any of the rolls' radii of curvature, and the rolls' distance above the ground is larger than the tires' thickness;
- c) at least one stabilizer contacting the ground in use, which is resiliently and rotatably connected with another side of said chassis;
- d) power means operatively connected with said vehicle and e) braking means operatively connected with said vehicle and only a lower front bearing roll, whereby, when said tires are braked, the area of said outer tire surface which contacts the ground is increased.
1 more element
Dependencies are inferred from the claim text.