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Class Information
Number: 405/138
Name: Hydraulic and earth engineering > Underground passageway, e.g., tunnel > Boring
Description: Method or apparatus wherein a subterranean corridor is formed by penetrating an earthen formation without disturbing the overlying earth.

Sub-classes under this class:

Class Number Class Name Patents
405/140 By axially overlapped members 8
405/141 Shield 107
405/139 With auxiliary tunnel 10
405/148 Work platform 11

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8591151 Forming a shaft for an underground mine Nov. 26, 2013
8535561 Tail seals Sep. 17, 2013
8393828 Boring machine steering system with force multiplier Mar. 12, 2013
8210774 Guided boring machine and method Jul. 3, 2012
8113741 Boring machine with conveyor system for cuttings and method for boring therewith Feb. 14, 2012
7753140 Auger boring machine with included pilot tube steering mechanism and method of use Jul. 13, 2010
7731453 Method and device for trenchless laying of pipelines Jun. 8, 2010
7686542 Method of protecting a surface of rock or soil Mar. 30, 2010
6926100 Hole reaming apparatus and method Aug. 9, 2005
6899842 Method and installation for laying a cylindrical pipe on a support May. 31, 2005
6802673 Tunnel boring with foamed composition Oct. 12, 2004
6772134 Control means for a horizontal boring tool Aug. 3, 2004
6761415 Trailer for a tunnel borer follower train Jul. 13, 2004
6644754 Tunnel excavating machine Nov. 11, 2003
6595724 Tunnel excavating machine and excavating method Jul. 22, 2003
6382732 Cutter head, tunnel excavating machine, and cutter replacing method May. 7, 2002
6375390 Method for widening road, superhighway or railway tunnels, without interrupting the traffic Apr. 23, 2002
6357965 Method, system and device for building a wall in the ground Mar. 19, 2002
6347838 Method for replacing cutters of tunnel-excavating machine, method for excavating tunnel, and tunnel excavating machine Feb. 19, 2002
6305754 Tunnel excavator with S-shaped soil plate Oct. 23, 2001
6287052 Material and method for lubricating the metal surfaces of an earth-pressure tunnel boring machine Sep. 11, 2001
6142577 Hydraulic muck handling system for tunnel boring machine Nov. 7, 2000
6092963 Tail structure of shield driving machine Jul. 25, 2000
6089791 Tunnel construction method Jul. 18, 2000
6082930 Shield driving machine Jul. 4, 2000
5931601 Tunnel excavator Aug. 3, 1999
5722800 Seal and its production method for the creation of load bearings, removable earth masses for the construction of underground structures such as cavity structures Mar. 3, 1998
5707176 Earth discharge control system for small-diameter pipe propelling machine Jan. 13, 1998
5501548 Method for controlling the direction of a shield tunneling machine and an apparatus therefor Mar. 26, 1996
5478170 Controlling apparatus for excavator Dec. 26, 1995
5393172 Shield tunneling machine Feb. 28, 1995
5382114 Tunnel excavation apparatus Jan. 17, 1995
5380127 Non-entry method of underground excavation in weak or water bearing grounds Jan. 10, 1995
5370479 Shielding apparatus Dec. 6, 1994
5330292 System and method for transmitting and calculating data in shield machine Jul. 19, 1994
5322391 Guided mole Jun. 21, 1994
5312163 System for aiding operation of excavating type underground advancing machine May. 17, 1994
5295734 Method and apparatus for drilling a tunnel Mar. 22, 1994
5284403 Control method and control equipment for drilling apparatus Feb. 8, 1994
5240350 Apparatus for detecting position of underground excavator and magnetic field producing cable Aug. 31, 1993
5236284 Drilling apparatus and method for its control Aug. 17, 1993
5228752 Tunnel boring machine Jul. 20, 1993
5221160 Subterranean connecting method for construction of shield tunnel and connecting apparatus therefor Jun. 22, 1993
5211507 Method of making a huge elongated space of square or rectangular cross section under the ground May. 18, 1993
5205613 Tunnel boring machine with continuous forward propulsion Apr. 27, 1993
5199817 Process of providing an elongate underground cavity Apr. 6, 1993
5190407 Rectangular shield excavating machine Mar. 2, 1993
5186579 Apparatus for controlling direction of underground excavator Feb. 16, 1993
5184918 Recoverable tunnelling machine Feb. 9, 1993
5180252 Earth pressure system shield process Jan. 19, 1993

1 2 3

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