Variable-diameter wheel
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United States of America Patent
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Nov 10, 2015
Grant Date -
May 3, 2012
app pub date -
Oct 19, 2011
filing date -
Oct 20, 2010
priority date (Note) -
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Abstract
A variable-diameter wheel 1 includes at least one rim or hub 11 having a predetermined diameter, to which at least one drive axle 14 of the wheel 1 is connected; at least one outer surface external to the hub 11, having a diameter which is greater than the diameter of the hub 11. At least one diameter-variation mechanism 3 is secured to the axle 14 and adapted to vary the actual diameter of the wheel 1 according to the torque applied to the drive axle 14 by at least one propulsion system.
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