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| Number | Title | Issue Date |
| 7766579 | Process and device for building a tunnel immersed on a sub-sea soil A tunnel is built in successive sections by a machine suitable for operating at the surface and in immersion that is displaced in the water on the sub-sea soil. This machine includes a fluid-tight working space (6) for accommodating the personnel and equipmen... | 08/03/2010 |
| 7018138 | Pier-repairing and reinforcing panel and method of repairing and reinforcing piers using such panels A pier-repairing and reinforcing panel is used in a method of repairing and reinforcing a pier. The panel includes locking members, locking ribs, reinforcing ribs, and clips. The method includes the steps of: installing a watertight caisson around a pier and removin... | 03/28/2006 |
| 6923600 | Method of repairing and reinforcing piers using stones A method of repairing and reinforcing a pier using stones. The method includes installing a watertight caisson around a pier and removing water from the gap between the caisson and pier prior to repairing the pier. The method can also include removing impurities fro... | 08/02/2005 |
| 4900191 | Method for removal of broken ground In order to avoid the time-consuming transport by road or rail vehicles, in many cases, overburden is pumped to the outside of a tunnel under construction, where it is dumped onto dump-hills. In order to avoid such dump-hills as well as extended transport... | 02/13/1990 |
| 4440524 | Process for bringing a body of water into communication with a tunnel The invention is concerned with a process for bringing a body of water into communication with a tunnel extending under the bed of the body of water. A cavity is excavated under the end of the tunnel adjacent the body of water, to a depth such that the vo... | 04/03/1984 |
| 4433937 | Method of tunnel construction employing submerged caisson In a tunnelling method, a completely submerged caisson is received in a recess in the floor of a body of water. The caisson includes a pressurized bell-type work chamber that is open at the bottom and closed at the top to trap breathable gas inside it. An... | 02/28/1984 |
| 4418561 | Apparatus for manufacture of tunnel tubes This invention relates to improved apparatus and process for manufacture of tunnel modules and tunnel sections used to build underwater tunnel tubes. A collapsible fixture is used to roll up a steel plate into a cylindrical shell. Cables wrapped around ch... | 12/06/1983 |
| 4406150 | Apparatus and process for improved manufacture of shells for tunnel tubes This invention relates to improved apparatus and process for manufacture of tunnel modules and tunnel sections used to build underwater tunnel tubes. A collapsible fixture is situated to roll up flat steel plate into a circular shell for the tunnel module... | 09/27/1983 |
| 4406151 | Collapsible fixture for manufacture of tunnel tubes An improved collapsible fixture for fabrication of tunnel modules and tunnel sections for building underwater tunnel tubes is provided. The fixture has a series of shell-like support members along its length, each member having a stationary base portion, ... | 09/27/1983 |
| 4397582 | Method of creating a cold water conduit to be used in ocean thermal energy conversion systems A method of creating a cold water conduit for use with an ocean thermal energy conversion plant by drilling and blasting at least one passageway completely through an underwater land formation.... | 08/09/1983 |
