Patent ID: 9616707
Date: 2017-04-11
CPC Classifications: B60B,B60Y,B65G,H05K

Claim:
1. A wheel, comprising: a hub comprising a center bore that extends in a first direction; a first annular rim comprising a first rim inner surface and a first rim outer surface; a second annular rim comprising a second rim inner surface and a second rim outer surface, the first rim inner surface being spaced apart from the second rim inner surface by a distance in the first direction; a first plurality of spokes that extend radially away from the hub to the first annular rim; a second plurality of spokes that extend radially away from the hub to the second annular rim; a plurality of pinion rods that extend between and separate the first rim inner surface and the second rim inner surface by the distance in the first direction, the plurality of pinion rods being substantially evenly spaced along the first annular rim and the second annular rim; a first annular ring of rollers comprising a first plurality of rollers arranged in a first ring and affixed to the first rim outer surface; and a second annular ring of rollers comprising a second plurality of rollers arranged in a second ring and affixed to the second rim outer surface.