Electronically controlled hydraulic swing system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9878886
SERIAL NO

15122067

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Importance

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Abstract

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A hydraulic circuit for use on a construction machine includes a first valve, a second valve, and at least a third valve. The second and third valve each includes at least one inlet port connected to a first outlet port of the first valve. The first outlet port of each of the second and third valves are configured to reduce a first pressure to a second pressure and/or a third pressure downstream of the second valve and the third valve, respectively. The second valve and the third valve also include at least a second outlet port connected to a reservoir tank. A hydraulic motor is connected to the first outlet port of the second valve, which operates the hydraulic motor in a first direction. The hydraulic motor also is connected to the first outlet port of the third valve, which operates the hydraulic motor in a second direction.

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Patent Owner(s)

Patent OwnerAddress
MANITOWOC CRANE COMPANIES LLCONE PARK PLAZA 11270 W PARK PLACE SUITE 1000 MILWAUKEE WI 53224

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Benton, John F Smithsburg, US 12 129
Harbold, Mark A Mercersburg, US 2 1
Peiffer, David R Waynesboro, US 2 1
Snider, Todd Fort Loudon, US 7 89

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