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Class Information
Number: 405/137
Name: Hydraulic and earth engineering > Underground passageway, e.g., tunnel > Subaqueous > Below bed
Description: Method or apparatus wherein the finished tunnel lies entirely below the surface of the earthen formation underlying the body of water.

Patents under this class:

Patent Number Title Of Patent Date Issued
7766579 Process and device for building a tunnel immersed on a sub-sea soil Aug. 3, 2010
7677336 Portable drilling device Mar. 16, 2010
4900191 Method for removal of broken ground Feb. 13, 1990
4440524 Process for bringing a body of water into communication with a tunnel Apr. 3, 1984
4433937 Method of tunnel construction employing submerged caisson Feb. 28, 1984
4418561 Apparatus for manufacture of tunnel tubes Dec. 6, 1983
4406150 Apparatus and process for improved manufacture of shells for tunnel tubes Sep. 27, 1983
4406151 Collapsible fixture for manufacture of tunnel tubes Sep. 27, 1983
4397582 Method of creating a cold water conduit to be used in ocean thermal energy conversion systems Aug. 9, 1983

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