US 12,152,633 B2
Composite drive shafts
Joyel M. Schaefer, Earlville, NY (US); Michael King, Sauquoit, NY (US); Brayton Reed, New York Mills, NY (US); and Mark R. Gurvich, Middletown, CT (US)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Jul. 25, 2022, as Appl. No. 17/872,109.
Application 17/872,109 is a division of application No. 16/173,364, filed on Oct. 29, 2018, granted, now 11,396,904.
Prior Publication US 2022/0356900 A1, Nov. 10, 2022
Int. Cl. F16C 3/02 (2006.01); F16D 1/027 (2006.01); F16D 3/72 (2006.01); F16D 1/068 (2006.01)
CPC F16C 3/026 (2013.01) [F16C 3/023 (2013.01); F16D 1/027 (2013.01); F16D 3/725 (2013.01); F16C 2208/02 (2013.01); F16C 2226/36 (2013.01); F16C 2326/06 (2013.01); F16C 2326/43 (2013.01); F16D 1/068 (2013.01); F16D 2200/006 (2013.01); F16D 2250/0076 (2013.01); Y10S 138/02 (2013.01); Y10S 285/919 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A mechanical system for an aerospace application comprising:
a drive input connected to a first axial end of a first diaphragm member, and a drive output connected to a second axial end of a second diaphragm member, and said drive output is an aerospace component;
said first and second diaphragm members being formed with two axial ends and at least one undulation extending radially of said axial ends, and said at least one undulation being intermediate said ends, and a tubular portion connecting said first and second diaphragm members, said first and second diaphragm members and said tubular member being formed of fiber reinforced polymer matrix composites, and said first and second diaphragm members being connected to axial ends of said tubular member;
joints formed by welding of said axial ends of said tubular portion to one of said inner ends of each of said first and second diaphragm members; and
said aerospace component is a propeller.