Drive device for a diaphragm wall cutter

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12188199
APP PUB NO 20210404140A1
SERIAL NO

17446265

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A drive device for a diaphragm wall cutter, having a drive housing and/or gear housing, which encloses an interior for accommodating drive and/or gear elements and comprises two housing parts which are rotatable relative to one another and sealed off from one another by a sealing device, and having a pressure equalization device for pressure equalization between the interior and the surroundings. A diaphragm wall cutter having such a drive device. The pressure equalization device comprises at least one intermediate chamber, which is pressurized and is sealed off from the interior by an inner seal and off from the surroundings by an outer seal. By virtue of such a sealed intermediate chamber that can be considerably smaller in terms of volume than the interior, the pressurization for pressure equalization between interior and surroundings is considerably simpler.

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Patent Owner(s)

Patent OwnerAddress
LIEBHERR-COMPONENTS BIBERACH GMBH88400 BIBERACH/RISS

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Halder, Johannes Ertingen, DE 4 0
Widmann, Roland Unlingen, DE 7 6

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