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
Oxidative coupling of hydrocarbons as heat source
Image processing apparatus, image processing method, and program
Medical capsule housing formed by thermal welding
Light-emitting diode devices
Methods and apparatus for performing multiple photoresist layer development and etching processes
Polypeptides and immunizing compositions containing gram positive polypeptides and methods of use
Display screen with graphical user interface
  Randomly Featured Patents
Magnifier apparatus and method for hand held video display
Layered endovascular graft
Grill for an automobile
Interconnect structure using a combination of hard dielectric and polymer as interlayer dielectrics
Semiconductor device and manufacturing method for the same
Image forming process with photopolymer layers between a support and a substrate
Tablet dispenser
Broad-spectrum A1.sub.(1-x-y)In.sub.yGa.sub.xN light emitting diodes and solid state white light emitting devices
Locking and removable step
Third-order nonlinear optical material and method for production thereof