US 11,719,325 B2
Chain ring with teeth oppositely laterally engaging a drive chain
Scott Winans, Grand Junction, CO (US); Darek C. Barefoot, Grand Junction, CO (US); and Timothy A. Fry, Grand Junction, CO (US)
Assigned to Eko Sport, Inc., Grand Junction, CO (US)
Filed by Eko Sport, Inc., Grand Junction, CO (US)
Filed on Jun. 3, 2021, as Appl. No. 17/337,721.
Application 17/337,721 is a continuation of application No. 16/567,716, filed on Sep. 11, 2019, granted, now 11,054,014.
Application 16/567,716 is a continuation of application No. 15/094,389, filed on Apr. 8, 2016, granted, now 10,451,166.
Claims priority of provisional application 62/146,635, filed on Apr. 13, 2015.
Prior Publication US 2021/0285533 A1, Sep. 16, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. F16H 55/30 (2006.01); B62M 9/00 (2006.01); F16G 13/06 (2006.01)
CPC F16H 55/303 (2013.01) [B62M 9/00 (2013.01); F16G 13/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A ring for driving a drive chain for a bicycle, comprising:
a plurality of teeth that are connected to one another and serially arranged;
wherein the plurality of teeth includes a first tooth and an adjacent second tooth;
wherein the first tooth has a first face and a second face and a first tooth thickness measured as a distance between the first face of the first tooth and the second face of the first tooth;
wherein the second tooth has a first face and a second face and a second tooth thickness measured as a distance between the first face of the second tooth and the second face of the second tooth;
wherein the first thickness and the second thickness at their respective thickest points are substantially identical;
wherein a first subset of the plurality of teeth is configured to have a first cross-sectional shape at a respective base; and
wherein a second subset of the plurality of teeth is configured to have a second cross-sectional shape at a respective base that is different from the first cross-sectional shape.