Specialized civil engineering machine, in particular slotted wall milling machine
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Jul 23, 2024
Grant Date -
N/A
app pub date -
Oct 17, 2019
filing date -
Oct 17, 2019
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention relates to a special civil engineering machine, in particular a slurry wall cutter, comprising at least one rotating tool and a tool drive that is arranged within a housing of the special civil engineering machine and is sealed with respect to the environment by means of at least one bearing seal in the region of its shaft exit from the housing to the driven tool, characterized in that the bearing seal comprises at least two separate sealing elements, whose arrangement forms a sealing chamber located between the sealing elements, wherein a pressure compensation device is provided, which controls the chamber pressure in the sealing chamber in dependence on the ambient pressure of the special civil engineering machine.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
LIEBHERR-WERK NENZING GMBH | 6710 NENZING |
International Classification(s)

- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Reinhardt, Hans | Bürs, AT | 11 | 116 |
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