Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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 releasing a locking in mobile terminal and mobile terminal using the same
Backlight assembly, method for driving backlight assembly, and liquid crystal display having the same
Toy track intersection component
Water slide
Hydroxyl-terminated thiocarbonate containing compounds, polymers, and copolymers, and polyurethanes and urethane acrylics made therefrom
Method and apparatus for management and analysis of services in VoIP networks
Method and system for automatic 3-D image creation
  Randomly Featured Patents
Multipurpose head forming and finishing apparatus
Structure and method for manufacturing a series read only memory with spacer film
Active wait
Printer for digital x-ray diagnosis
Beam steering device
Detector array and method
Compounding preprocessor for cache for identifying multiple instructions which may be executed in parallel
Method for the creation of a pole wheel/wheel hub connection and arrangement thereof
Polyesteramide platform for site specific drug delivery
Fail safe document dispensing system