Hydraulic system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7827787
SERIAL NO

11965011

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A ground engaging vehicle including a movable member, a hydraulically driven actuator, a hydraulic pump, a plurality of valves and at least one hydraulic conduit. The hydraulically driven actuator is coupled to the movable member and the actuator has a first chamber and a second chamber. The plurality of non-proportional valves include a first valve, a second valve, a third valve and a fourth valve. The at least one hydraulic conduit couples the pump with the first valve and the second valve. The first valve is in direct fluid communication with the first chamber. The second valve is in direct fluid communication with the second chamber. The third valve is in direct fluid communication with the first chamber and the fourth valve is in direct fluid communication with the second chamber. The first valve and the second valve each include an open position and a closed position.

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Patent Owner(s)

Patent OwnerAddress
DEERE & COMPANYONE JOHN DEERE PLACE MOLINE IL 61265

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cherney, Mark J Potosi, US 46 558
Dobchuk, Jeffery W Dubuque, US 3 104

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