Method and device for transporting overburden away during tunnelling

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9518465
APP PUB NO 20150233243A1
SERIAL NO

14434304

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A method and device for transporting overburden away during tunneling includes a seal that separates a first portion and a second portion of a transporting screw arrangement. As a result, in open tunneling or in earth-pressure-assisted tunneling, when the seal is closed, overburden can be transported out of a first opening, arranged ahead of the seal in the direction of removal and, in fluid-assisted tunneling, when the first opening is closed and the seal is open, the overburden can be transported into the second portion.

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Patent Owner(s)

  • HERRENKNECHT AG

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Burger, Werner Schwanau, DE 13 19
Strässer, Michael Darmstadt, DE 1 0

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