US 11,654,486 B2
Gear shaft and method of manufacturing
Jasen Deforge, South Windsor, CT (US); and Andy Mugrage, Byron, IL (US)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Dec. 8, 2021, as Appl. No. 17/545,879.
Application 17/545,879 is a division of application No. 16/450,664, filed on Jun. 24, 2019, granted, now 11,220,751.
Prior Publication US 2022/0136112 A1, May 5, 2022
Int. Cl. B33Y 80/00 (2015.01); B22F 10/20 (2021.01); B22F 10/25 (2021.01); F16C 3/02 (2006.01); F16H 55/17 (2006.01); F16H 57/00 (2012.01); C23C 26/00 (2006.01); C23C 24/00 (2006.01); B33Y 10/00 (2015.01)
CPC C23C 26/00 (2013.01) [B22F 10/20 (2021.01); B22F 10/25 (2021.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12); C23C 24/00 (2013.01); F16C 3/02 (2013.01); F16C 3/023 (2013.01); F16H 55/17 (2013.01); F16H 57/0025 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A gear shaft comprising:
a first portion including only a first material;
a second portion including only a second material; and
a transitioning portion, attached to both the first portion and the second portion, including a varying ratio of the first material to the second material along a length of the transitioning portion, wherein the transitioning portion includes a lengthwise majority of the shaft.