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Class Information
Number: 405/148
Name: Hydraulic and earth engineering > Underground passageway, e.g., tunnel > Boring > Work platform
Description: Method or apparatus wherein an artificial support for equipment or personnel is provided.

Patents under this class:

Patent Number Title Of Patent Date Issued
8591151 Forming a shaft for an underground mine Nov. 26, 2013
8485608 Heading or extraction machine Jul. 16, 2013
7156582 Inspectable tunnel for underground pipes and cables Jan. 2, 2007
6698978 Rock drilling rig Mar. 2, 2004
5302052 Underground work chamber assembly and method for the construction thereof Apr. 12, 1994
4986374 Apparatus for driving an upwardly directed shaft in rock Jan. 22, 1991
4913587 Form assembly for making covering wall of tunnel made by shield type excavator Apr. 3, 1990
4818025 Narrow opening mechanical miner Apr. 4, 1989
4280771 Apparatus for distributing concrete, especially in the shuttering of gallery linings in mine and tunnel workings Jul. 28, 1981
4051682 Method for installing ceiling panels in a tunnel Oct. 4, 1977
3970200 Gantry Jul. 20, 1976

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