Piece of working equipment

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8418451
APP PUB NO 20100018195A1
SERIAL NO

12508884

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The present invention relates to a piece of working equipment, in particular to an excavator or to a machine for the transfer of material, having an element movable via at least one working hydraulic cylinder, wherein at least one energy recovery hydraulic cylinder is provided for the recovery of energy from the movement of the movable element. In accordance with the invention, the energy recovery hydraulic cylinder is filled with gas at the bottom side and has a hollow piston rod.

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First Claim

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Patent Owner(s)

  • LIEBHERR-HYDRAULIKBAGGER GMBH

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asam, Dirk Ulm, DE 16 116
Lavergne, Hans-Peter Trunkelsberg, DE 11 37
Stanger, Sebastian Reutlingen, DE 2 18
Wager, Bernd Kirchdorf/Iller, DE 15 110

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