Return to neutral device for a hydraulic apparatus

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United States of America Patent

PATENT NO 9328611
SERIAL NO

13958822

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In a hydrostatic device using an axial piston pump, a yoke is mounted so that it contacts the movable swash plate of the hydrostatic transmission. The yoke is biased by a spring-type mechanism to force the swash plate to return to neutral, and the set position of the yoke plate may be externally adjusted. A bias or load arm rotatably fixed to a housing at one end and connected to a spring at the other end is engaged to the yoke to provide the return force to the yoke plate. The yoke plate may have two legs to provide a return to neutral force to the swash plate in either direction, or one leg to provide the return to neutral force in only a single direction.

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Patent Owner(s)

Patent OwnerAddress
HYDRO-GEAR LIMITED PARTNERSHIP1411 S HAMILTON STREET SULLIVAN IL 61951

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Langenfeld, Thomas J Sullivan, US 94 951

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