Fluid power helical rotary actuator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8904917
APP PUB NO 20120263616A1
SERIAL NO

13087733

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A fluid-powered, helical rotary actuary is provided. The actuary includes a housing, a shaft with output ends positioned in the housing, and a piston sleeve surrounding the shaft and also positioned within the housing. The shaft includes a groove for receiving a collar. The collar creates a false shoulder such that the shaft is able to have the same diameter along the length of the shaft, thus allowing for a larger working area and more torque output density. The actuary also includes a support ring positioned on the shaft near the splined portion of the output end. The support ring is used to stabilize the attachment of an external member, and also to protect the shaft from damage caused by the splined receiving portion of the external member, or hub.

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Patent Owner(s)

Patent OwnerAddress
ROSENBOOM MACHINE & TOOL INC1530 WESTERN AVENUE P O BOX 280 SHELDON IA 51201

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bolkema, Ryan Lee Hull, US 1 5
Rosenboom, Darin Michael Orange City, US 3 9
Van, Regenmorter Daniel Jon Sheldon, US 2 9

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