Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 405/140
Name: Hydraulic and earth engineering > Underground passageway, e.g., tunnel > Boring > By axially overlapped members
Description: Method or apparatus wherein a plurality of plates or poles are sequentially driven into the earth surrounding the corridor cross sections such that each plate or pole partially extends over the next longitudinally adjacent plate or pole.

Patents under this class:

Patent Number Title Of Patent Date Issued
8245452 Molded sectioned riser and locking cover Aug. 21, 2012
5382114 Tunnel excavation apparatus Jan. 17, 1995
5290125 Tunnel lining method and apparatus suitable for the purpose Mar. 1, 1994
5253955 Automatically advancing supporting and sliding form for introducing an in-situ concrete lining Oct. 19, 1993
5152638 Process and apparatus for excavating tunnels Oct. 6, 1992
5129764 Device to feed reinforcement rods Jul. 14, 1992
5104260 Method and apparatus for tunnelling Apr. 14, 1992
4666336 Method of and apparatus for building thin lining on tunnel May. 19, 1987

  Recently Added Patents
Method for producing coated steel sheet
Power converter and method of power conversion
System and method for enabling image recognition and searching of remote content on display
Utilizing virtually stored media snapshots for rasterizing print jobs
Assisting apparatus, method, and program for checking crosstalk noise between hierarchized modules in a semiconductor circuit
  Randomly Featured Patents
Polyamide-imide powders, compositions containing the same and method of making the powders
Direct gaseous fuel injector
Process apparatus and method and elevator mechanism for use in connection therewith
Sewing machine lubrication system
Dumping apparatus for grass catcher
Multiple function animal furniture system
Vibration absorber device for a seat in a vehicle, in particular an aircraft or the like
Direct conversion with variable amplitude LO signals
Automobile wheel lift
Synthesis of cyclosporin analogs