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Class Information
Number: 299/15
Name: Mining or in situ disintegration of hard material > Processes > Forming blocks (e.g., quarrying)
Description: Process in which hard material in situ is removed as a relatively large, integral block of a predetermined shape.

Patents under this class:

Patent Number Title Of Patent Date Issued
8287051 Method of quarrying dimensional stone, and line drilling apparatus Oct. 16, 2012
7185954 Method and device for removing part of concrete structure Mar. 6, 2007
6520591 R.B. Jun's method of openwork mining utilizing pit wall consolidation Feb. 18, 2003
6102483 Process for preparing the exposed surface of a rock formation to permit the extraction of parallelepiped shaped blocks of rock ready for final processing, and process and extractor for extract Aug. 15, 2000
5765924 High pressure water jet channeling horizontally into a solid mountain of granite Jun. 16, 1998
5653508 Chimney demolition device and method Aug. 5, 1997
5570934 Traction boring device using multiple trepans for producing large cuts in concrete works and the like and method of producing cuts Nov. 5, 1996
5472262 Double slot wire sawing apparatus and method Dec. 5, 1995
5332293 Apparatus for cutting erosive materials using high pressure water device Jul. 26, 1994
5087100 Method of fracturing rock or similar material and apparatus therefore Feb. 11, 1992
4962967 Stone slotting machine Oct. 16, 1990
4950034 Shaft excavation method Aug. 21, 1990
4838614 Method of excavation and apparatus therefor Jun. 13, 1989
4838615 Apparatus for excavating a recess Jun. 13, 1989
4832411 Method and apparatus for cutting reinforced concrete May. 23, 1989
4821703 Opening method for reinforced concrete wall Apr. 18, 1989
4673218 Tunnel excavation method Jun. 16, 1987
4671367 Pole hole digger with percussive core drilling Jun. 9, 1987
4542940 Method and apparatus for cutting a trench through rock-like material Sep. 24, 1985
4520880 Automatic stone cutter Jun. 4, 1985
4433871 Machine for cutting curbstones, sidewalls and the like Feb. 28, 1984
4311343 Apparatus for breaking rock or concrete Jan. 19, 1982
4298232 Mining machine Nov. 3, 1981
4230372 Dual rock cutter wheel trencher Oct. 28, 1980
4190293 Rock splitting attachment for a breaking hammer Feb. 26, 1980
4176883 Oscillating liquid jet system and method for cutting granite and the like Dec. 4, 1979
4145086 Method and machine for digging ditch Mar. 20, 1979
4134620 Channelling machine for cutting a preliminary groove around the working face of a tunnel Jan. 16, 1979
4114950 Method and apparatus for breaking a hard compact material such as rock or concrete Sep. 19, 1978
4073353 Sonic large bore earth auger Feb. 14, 1978
4072353 Thrust-impact rock-splitter Feb. 7, 1978
4013319 Tunneling machine with massive guide for impact tools Mar. 22, 1977

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