Combination freezing head for nitrogen-brine freezing

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United States of America Patent

PATENT NO 11085164
APP PUB NO 20190264415A1
SERIAL NO

16344938

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Abstract

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An apparatus for freezing ground comprises a freezing head extending along a longitudinal axis, and a first conduit for introducing a first cooling medium or a second cooling medium different therefrom into an interior of the freezing head. The first conduit opens into the interior a second conduit introduces the second cooling medium into the interior of the freezing head or draws the first and/or the second cooling medium off from the interior of the freezing head. The second conduit opens into the interior of the freezing head, the apparatus has at least three separate connections, namely a first connection, via which the first cooling medium can be introduced into the interior of the freezing head, a second connection, via which the second cooling medium can be introduced into the interior of the freezing head, and a third connection, via which the first or the second cooling means can be drawn off from the interior of the freezing head.

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Patent Owner(s)

  • LINDE AKTIENGESELLSCHAFT

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schiffbauer, Reiner Ennetburgen, CH 2 0
Sliwo, Abraham Walchwil, CH 4 3

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