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Class Information
Number: 175/102
Name: Boring or penetrating the earth > With below-ground tool drive prime mover > With below-ground conveyer or impeller for removal of cuttings
Description: Apparatus including means located within the bore for removing cuttings from the bore comprising either (1) an endless flexible carrier or (2) a means to induce fluent flow (e.g., pump or helical screw).










Patents under this class:

Patent Number Title Of Patent Date Issued
8316965 Drilling tool with fluid cleaner Nov. 27, 2012
8074717 Drilling method and downhole cleaning tool Dec. 13, 2011
7658244 Device for advancing drillings in the ground Feb. 9, 2010
7172039 Down-hole vane motor Feb. 6, 2007
7051821 Adjustable hole cleaning device May. 30, 2006
6481510 Directional drill for railway drilling and method of using same Nov. 19, 2002
5901797 Drilling apparatus with dynamic cuttings removal and cleaning May. 11, 1999
5651420 Drilling apparatus with dynamic cuttings removal and cleaning Jul. 29, 1997
5622231 Cutting head Apr. 22, 1997
5375669 Method and apparatus for cleaning a borehole Dec. 27, 1994
5351764 Method and apparatus for enlarging an underground path Oct. 4, 1994
5269384 Method and apparatus for cleaning a bore hole Dec. 14, 1993
5230388 Method and apparatus for cleaning a bore hole using a rotary pump Jul. 27, 1993
4934466 Device for borehole hydraulic mining Jun. 19, 1990
4790395 Pipe-driving apparatus Dec. 13, 1988
4744426 Apparatus for reducing hydro-static pressure at the drill bit May. 17, 1988
4732226 Drilling machine Mar. 22, 1988
4718504 Trench excavator Jan. 12, 1988
4646853 Shaft boring machine and method Mar. 3, 1987
4589502 Earth boring apparatus May. 20, 1986
4483403 Shaft drilling machine Nov. 20, 1984
4274675 Shaft-sinking apparatus with milling head and central worm conveyor Jun. 23, 1981
4186808 Earth boring machine with crushing rollers Feb. 5, 1980
4004642 Tround terra-drill processes and apparatus Jan. 25, 1977
3965995 Machine for boring a large diameter blind hole Jun. 29, 1976
3938598 Belling apparatus Feb. 17, 1976
3934660 Flexpower deep well drill Jan. 27, 1976











 
 
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