Additively manufactured elliptical bifurcating torsion spring

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United States of America Patent

PATENT NO 11852211
SERIAL NO

17017218

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Abstract

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A 3D printed additively manufactured (AM) elliptical bifurcating torsion flexure assembly system includes a base section; elliptical bifurcating torsion springs, each including a bifurcated legs section supported by the base; a bifurcated elliptical torsion spring section contiguous with the bifurcated legs section; and a single upper section contiguous with the elliptical torsion spring section. The single upper section includes a connection component, and the device material includes Hot Isostatic Pressing (HIP) heat-treated Ti6Al4V. The elliptical bifurcating torsion flexure assembly is printed as one part by a 3D additive manufacturing process, and the bifurcation maintains consistent balance while being torqued. The stiffness-spring rate of the device is at least partly controlled by varying cross-sectional shape and diameters by the 3D additive manufacturing printing.

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Patent Owner(s)

Patent OwnerAddress
BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INCP O BOX 868 NHQ0-1-719 NASHUA NH 03061-0868

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Campbell, Benjamin K Nashua, US 2 2
Chadbourne, Robert Bedford, US 1 0
Dippel, Ryan Arlington, US 3 2
Shaw, Michael J Epsom, US 49 237

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