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US 12,253,107 B2Granted
Drive shafts with enhanced bending flexibility
AssigneeHamilton Sundstrand Corporation
InventorsMark R. Gurvich, Georgios S. Zafiris, Joyel M. Schaefer, Brayton Reed, Michael King
Life of this patent
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Abstract
A drive shaft has a tubular portion extending between axial ends and is hollow. There are deformations on the tubular portions. The deformations extend for a circumferential extent that is less than 180° about a central axis of the tubular portion.
Claims13
A drive shaft comprising:
- a tubular portion extending between axial ends and being hollow, and there being deformations on the tubular portion, said deformations extending for a circumferential extent that is less than 180° about a central axis of said tubular portion;
- wherein there are plural lesser distance deformation portions in spaced axial locations between said axial ends of said tubular portion, with each having a plurality of deformations axially spaced by a first distance;
- and
- wherein there is at least one greater distance deformation portion having deformations, and said at least one greater distance deformation portion axially between a pair of said greater deformation portions, wherein said first distance is less than a second axial distance between said deformations in said at least one greater distance deformation portion.
1 more element
Dependencies are inferred from the claim text.