Patent ID: 9302538
Filing Date: 2016-04-05
CPC Classification: B60B

Claim Text:
1. A human powered vehicle multi-surface rim comprising: an outer section of the multi-surface rim that includes a tire engaging portion located at an outward perimeter of the outer section of the rim, an inner portion located radially inward from the tire engaging portion, and two air engaging side surfaces extending radially between the tire engaging portion and the inner portion and forming axially opposing sides of the outer section of the multi-surface rim; one or more airfoil inner sections of the multi-surface, wherein each inner section includes an outward portion and an inward portion with two air engaging side surfaces extending radially between each outward portion and inward portion to form axially opposing sides of an airfoil shape for each inner section; wherein the one or more inner sections are located radially inward from the outer section and spaced separately from the outer section at a distance for allowing airflow to move between high and low pressure sides of at least the outer section and one of the one or more inner sections of the rim in promoting airflow attachment at the trailing edges of the outer and inner surface sections; and a plurality of spokes connecting the inner portion of the outer section to the outward portion of the one of the one or more inner sections of the rim.