Resources Contact Us Home
Browse by Category: Main > Engineering
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

  Recently Added Patents
Structure of circuit board and method for fabricating the same
Secure data exchange between data processing systems
Portable multimedia player
Detection of code-based malware
Motor device and method of manufacturing the same
Flash multi-level threshold distribution scheme
1,3-diiodohydantoin compound and production method thereof
  Randomly Featured Patents
Apparatus and method for controlling maximum cylinder pressure in an internal combustion engine
Wringable mop assembly
Signal detection contactor and signal calibration system
Process for producing transparent gels with improved mechanical and sorption properties from copolymers of 2-hydroxyethyl methacrylate and amides of acrylic or methacrylic acid
Methods and systems for endorsing local search results
Wobble-plate pump including a mushroom-shaped inclined wobble-plate
Portable reversible cutting board having removable cover and tool
Process for the preparation of a binary membrane top layer
Hot stamping cylinder
Pressure regulating float valve