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Class Information
Number: 405/141
Name: Hydraulic and earth engineering > Underground passageway, e.g., tunnel > Boring > Shield
Description: Method or apparatus wherein a protective member movable with the progress of the work temporarily supports the walls of the corridor to prevent the surrounding material from falling into the corridor during excavation.










Sub-classes under this class:

Class Number Class Name Patents
405/143 Direction control 42
405/145 Discrete independently advanceable earth supporting segments 44
405/144 Door or bulkhead 36
405/146 Lining installation 189
405/147 Seal 34
405/142 With transverse force application feature 35


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8210774 Guided boring machine and method Jul. 3, 2012
7832960 All-conditions tunnel boring machine Nov. 16, 2010
7731453 Method and device for trenchless laying of pipelines Jun. 8, 2010
7070359 Microtunneling systems and methods of use Jul. 4, 2006
7040712 Shield tunneling method and shield tunneling machine May. 9, 2006
6698844 Earth discharging device for upward-facing shield machine Mar. 2, 2004
6595724 Tunnel excavating machine and excavating method Jul. 22, 2003
6485233 Foaming composition Nov. 26, 2002
6431653 Tunnel-boring machine and method of using the same Aug. 13, 2002
6375390 Method for widening road, superhighway or railway tunnels, without interrupting the traffic Apr. 23, 2002
6206478 Tunnel excavator with crawler drive and roof support bearing frames Mar. 27, 2001
6092963 Tail structure of shield driving machine Jul. 25, 2000
6082930 Shield driving machine Jul. 4, 2000
6017095 Tunnel boring machine with crusher Jan. 25, 2000
5765925 Tunnel boring machine for hard ground and soft ground Jun. 16, 1998
5743676 Method and device for keeping outfall drainage in service during sewerage construction Apr. 28, 1998
5678957 Method for underground excavation Oct. 21, 1997
5538362 Shield excavator Jul. 23, 1996
5527135 Method for injecting lubricant or back-filling material into a space between the outside of double-wall pipes and the ground in the pipe-jacking method and an apparatus therefor Jun. 18, 1996
5460432 Cutter head for a tunnel excavator Oct. 24, 1995
5443305 Tunnelling machine Aug. 22, 1995
5393172 Shield tunneling machine Feb. 28, 1995
5346331 Shield tail sealing Sep. 13, 1994
5330292 System and method for transmitting and calculating data in shield machine Jul. 19, 1994
5284403 Control method and control equipment for drilling apparatus Feb. 8, 1994
5255960 Tunnel drilling apparatus with drill waste removal Oct. 26, 1993
5236284 Drilling apparatus and method for its control Aug. 17, 1993
5221160 Subterranean connecting method for construction of shield tunnel and connecting apparatus therefor Jun. 22, 1993
5199818 Method and apparatus for detecting collapse of natural ground in shield driving method Apr. 6, 1993
5190407 Rectangular shield excavating machine Mar. 2, 1993
5184918 Recoverable tunnelling machine Feb. 9, 1993
5180252 Earth pressure system shield process Jan. 19, 1993
5174683 Telescopic double shield boring machine Dec. 29, 1992
5171105 Process and device for lining tunnels and ducts having circular and non-circular cross-sections, especially for canal and tunnel construction Dec. 15, 1992
5156490 Shield tunnelling apparatus Oct. 20, 1992
5125768 Method and apparatus for the production of underground pipelines Jun. 30, 1992
5123708 Shield tunnelling machine Jun. 23, 1992
5104261 Tunnel boring machine Apr. 14, 1992
5102201 Shield tunnelling machine Apr. 7, 1992
5072992 Shield unit Dec. 17, 1991
5051032 Method and apparatus for continuously excavating shaft and tunnel Sep. 24, 1991
5051033 Bracing device for a self-advancing shield tunnelling machine Sep. 24, 1991
5032039 Underground excavator Jul. 16, 1991
5017045 Method and apparatus for controlling attitude of shield excavator May. 21, 1991
4915541 Method and apparatus for continuously boring and lining tunnels and other like structures Apr. 10, 1990
4904115 Method and device for controlling the trajectory of a shield-type tunnelling machine Feb. 27, 1990
4898496 Apparatus for underground tunneling Feb. 6, 1990
4886396 Existing pipeline renewing method and apparatus therefor Dec. 12, 1989
4886394 Shield tunneling machine Dec. 12, 1989
4863313 Method for lining tunnel wall formed by shield excavation Sep. 5, 1989

1 2 3










 
 
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