Vehicle wheel
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Mar 23, 2006
app pub date -
Feb 6, 2004
filing date -
Feb 13, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A vehicle wheel with inflatable tyres, mounted on the same rim. One of the tyres (1), called a summer tyre, has tread suitable for summer use and at least one additional tyre (10), called a winter tyre, with a tread suitable for winter use. The winter tyre (or tyres) is mounted on the side of the summer tyre and is, in summer conditions, not fully inflated and hence not in contact with the road surface, because its circumference in its semi-inflated state has a shorter radius than that of the circumference of the summer tyre. The winter tyre (10) is securely attached to the outer surface of a concentric volume accumulator (7), which is part of the wheel rim and functions as a constantly available spare tyre. When inflated, the winter tyre (10) can expand, so that it has the same outer radius as the summer tyre (1) and thus also comes into contact with the road surface. After that, the pressure of the summer tyre is lowered and the area of contact with the road surface is redistributed to the winter tyre (or tyres).
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