Valve arrangement

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8701706
APP PUB NO 20120273700A1
SERIAL NO

13474180

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Exemplary embodiments relate to a valve arrangement for actuating a piston cylinder arrangement, that includes a pilot control valve arrangement and a main control valve arrangement, wherein both the pilot control and main control valve arrangement include a 3/2-way valve as a pilot control valve and as a main control valve. Each valve has a control-pressure, high-pressure, and low-pressure connection. Said connections are connected to each other such that the main control valve is controlled via the control-pressure connection of the pilot control valve and the pressures on the control-pressure connection of the pilot control valve and the pressures on the control-pressure connection and on the high-pressure connection of both valves, are statically inverted relative to each other. The 3/2-way valves are designed as seat valves and are only hydraulically connected to each other.

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First Claim

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Patent Owner(s)

  • ABB SCHWEIZ AG;ABB TECHNOLOGY AG

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Körber, Franz-Josef Altenstadt, DE 4 12
Schmidt, Matthias Frankfurt, DE 73 366

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