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Class Information
Number: 299/57
Name: Mining or in situ disintegration of hard material > Hard material disintegrating machines > Rotary cutter head with advance direction coincident or parallel to rotary axis > With material-handling means > Cooperates with laterally spaced heads
Description: Apparatus in which the cutting means comprises a plurality of cutter heads and the axes about which the heads are moved are spaced in a direction transverse to said axes.

Patents under this class:

Patent Number Title Of Patent Date Issued
7192092 Method and means for recovering hydrocarbons from oil sands by underground mining Mar. 20, 2007
7192094 Auger flight support system Mar. 20, 2007
6679559 Auger flight support for plural auger coal mining systems Jan. 20, 2004
6644754 Tunnel excavating machine Nov. 11, 2003
6364418 Cutting heads for horizontal remote mining system Apr. 2, 2002
6305754 Tunnel excavator with S-shaped soil plate Oct. 23, 2001
6270163 Mining machine with moveable cutting assembly and method of using the same Aug. 7, 2001
5863101 Auger mining machine and mine launch device Jan. 26, 1999
5738465 Device for the in-situ production of columns of stabilized and compacted soil Apr. 14, 1998
5582466 Advance/retreat cutting miner with simple conveyor Dec. 10, 1996
5496095 Mining machine having vertically movable primary and secondary cutters Mar. 5, 1996
5364171 Apparatus and method for continuous mining Nov. 15, 1994
5232269 Launch vehicle for continuous mining apparatus Aug. 3, 1993
5221122 Multipurpose mining machine Jun. 22, 1993
5112111 Apparatus and method for continuous mining May. 12, 1992
5110188 Deformed shield tunneling method and tunneling machine May. 5, 1992
5087101 Power spiral conveyor section and method Feb. 11, 1992
4889392 Advance/retreat cutting miner and method Dec. 26, 1989
4887868 Dual auger continuous mining machine Dec. 19, 1989
4848844 Overburden excavator Jul. 18, 1989
4784439 Movable cutting machine Nov. 15, 1988
4732224 Auger apparatus Mar. 22, 1988
4514012 Excavatory machine for use in coal and other mining opertions Apr. 30, 1985
4483403 Shaft drilling machine Nov. 20, 1984
4390211 Continuous miner with cutter assembly attitude adjustment Jun. 28, 1983
4390212 Machine for mining thin seamed hard material in-situ between adjacent auger holes Jun. 28, 1983
4341424 Mobile dual auger continuous mining machine with multiple movement capabilities Jul. 27, 1982
4312540 Continuous mining apparatus and method Jan. 26, 1982
4216999 Machine for mining tar sands having rearwardly directed exhaust related to conveyor trough Aug. 12, 1980
4205881 Machine and method for mining hard material in-situ between adjacent auger holes Jun. 3, 1980
4131317 Mining machine having advancing mine roof supports Dec. 26, 1978
4087131 Drag bit excavation May. 2, 1978
4084854 Drag bit excavation Apr. 18, 1978
4082362 Apparatus for coal mining in-cutting and out-cutting Apr. 4, 1978
4036529 Support system for a unitized pair of auger conveyors Jul. 19, 1977
4005905 Excavating machine Feb. 1, 1977
4003602 Method and apparatus for in-cutting and out-cutting during coal mining Jan. 18, 1977
3997216 Apparatus for continuous mining Dec. 14, 1976
3941423 Method of and apparatus for extracting oil from oil shale Mar. 2, 1976

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