US 11,686,381 B1
Composite gear assembly and method of making same
Ethan Steinmetz, Beavercreek, OH (US); Ben Dietsch, Kettering, OH (US); Gray Fowler, Allen, TX (US); and Jason Hermiller, Lebanon, OH (US)
Assigned to Cornerstone Research Group, Inc., Miamisburg, OH (US)
Filed by Cornerstone Research Group, Inc., Miamisburg, OH (US)
Filed on May 7, 2021, as Appl. No. 17/314,628.
Claims priority of provisional application 63/021,888, filed on May 8, 2020.
Int. Cl. F16H 55/06 (2006.01); F16H 57/00 (2012.01); B29C 70/84 (2006.01); B29K 307/04 (2006.01); B29L 15/00 (2006.01)
CPC F16H 55/06 (2013.01) [B29C 70/84 (2013.01); F16H 57/0025 (2013.01); B29K 2307/04 (2013.01); B29L 2015/003 (2013.01); F16H 2055/065 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A composite hybrid gear assembly comprising:
a gear hub formed from a composite material, the gear hub comprising a shaft region having an axially symmetrical external profile and a hub web region having a flared profile extending from the shaft region;
a gear head assembly comprising a head web region and a teeth region, the gear head assembly fixed to the gear hub, where the head web region of the gear head assembly is fixed to a surface of the hub web region of the gear hub contiguous with an internal surface of the shaft region; and
a first sleeve fixed to an external surface of the shaft region of the gear hub;
where the first sleeve and the gear head assembly are formed from a metallic material.