SAND WHEEL
First Claim
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1. A wheel for use on a soft granular surface, said wheel having a circumference with a plurality of radially outwardly facing concavities, each of said concavities having a radially outwardly facing edge adapted to sequentially capture and confine granules radially inwardly and upwardly into the associated concavity compress the granules into the concavity to allow the wheel to continue to roll over the surface.
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Abstract
A wheel for use on soft granualar surfaces has a circumference having a plurality of concave cavities facing radially outwardly therefrom. The wheel may be used in combination with a cart, dolly, trailer, vehicle or the like.
15 Citations
12 Claims
- 1. A wheel for use on a soft granular surface, said wheel having a circumference with a plurality of radially outwardly facing concavities, each of said concavities having a radially outwardly facing edge adapted to sequentially capture and confine granules radially inwardly and upwardly into the associated concavity compress the granules into the concavity to allow the wheel to continue to roll over the surface.
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4. A wheel as in claim I wherein each of said edges is polygonal.
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8. A wheel in combination with a cart, said wheel having a circumference having a plurality of concave cavities facing radially outwardly therefrom.
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12. A method of supporting a wheel on a soft granular surface, the method comprising the steps of:
- providing a wheel having a circumference with a plurality of radially outwardly facing concavities, each of said concavities having a radially outwardly facing edge;
sequentially contacting each of said edges with said granular surface to at least partially fill each of said concavities with granules in compression to thereby support said wheel on said surface.
- providing a wheel having a circumference with a plurality of radially outwardly facing concavities, each of said concavities having a radially outwardly facing edge;
Specification