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Wheel provided with driving means

  • US 20050029026A1
  • Filed: 03/08/2004
  • Published: 02/10/2005
  • Est. Priority Date: 01/26/2000
  • Status: Active Grant
First Claim
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1. A traction assembly comprising a wheel with a wheel rotational axis and traction means comprising an electric motor which, when in operation, exerts torque on the wheel, wherein a traction ratio, being an arm of the torque divided by a radius of the wheel, is larger than 0.57.

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