Working device

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United States of America Patent

PATENT NO 9127736
APP PUB NO 20120301256A1
SERIAL NO

13298793

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention relates to a working device having an element movable via at least one working drive, with at least one energy recovery cylinder being provided for recovering energy from the movement of the movable element and having a chamber filled with gas. In this respect, the energy recovery cylinder has a sealing arrangement for sealing the chamber filled with gas which includes an annular space filled with oil.

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Patent Owner(s)

  • LIEBHERR-HYDRAULIKBAGGER GMBH

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lavergne, Hans-Peter Trunkelsberg, DE 11 37

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