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Class Information
Number: 175/405
Name: Boring or penetrating the earth > Bit or bit element > Core forming type > Impact or percussion type
Description: Apparatus in which the cutting edge of the bit is of the type which is adapted to disintegrate the formation by a forceful contact or a repetitive striking action.










Patents under this class:

Patent Number Title Of Patent Date Issued
8636088 Rock drilling machine and axial bearing module Jan. 28, 2014
8336647 Sonic drill bits and sonic drilling systems Dec. 25, 2012
8127864 Hydro-percussive mechanisms for drilling systems Mar. 6, 2012
8028772 Internally dampened percussion rock drill Oct. 4, 2011
7984773 Sonic drill bit for core sampling Jul. 26, 2011
7775304 Apparatus and method for driving casing or conductor pipe Aug. 17, 2010
7419018 Cam assembly in a downhole component Sep. 2, 2008
7207401 One trip milling system Apr. 24, 2007
6681875 Guide tube of a drill string configured to facilitate unscrewing thereof from a member of the drill string Jan. 27, 2004
6675919 Tubular piling apparatus and method Jan. 13, 2004
6585062 Steerable directional drilling reamer Jul. 1, 2003
6564887 Core drill May. 20, 2003
6439322 Downhole hammer-type core barrel and method of using same Aug. 27, 2002
6213230 Drilling tool especially for the rotary percussion drilling of preferably rock Apr. 10, 2001
6189630 Downhole hammer-type core barrel Feb. 20, 2001
6116827 Drilling tool Sep. 12, 2000
6035950 Method and apparatus for fluid and soil sampling Mar. 14, 2000
6000481 Method and apparatus for environmental sampling Dec. 14, 1999
5791424 Drill bit for the rotary-percussive drilling of preferably rock, concrete or the like Aug. 11, 1998
5743343 Method and apparatus for fluid and soil sampling Apr. 28, 1998
5421419 Method and apparatus for fluid and soil sampling Jun. 6, 1995
5186266 Multi-walled drill string for exploration-sampling drilling systems Feb. 16, 1993
4783123 Tool bit for impact ripping of a mine face Nov. 8, 1988
4702327 Core sample taking bullet construction Oct. 27, 1987
4569403 Formation sampling bullet Feb. 11, 1986
4526242 Drilling device Jul. 2, 1985
4369002 Method of emptying pipes driven into earth in nontrench laying and device for carrying same into effect Jan. 18, 1983
4321974 Annular drilling hammer Mar. 30, 1982
4280573 Rock-breaking tool for percussive-action machines Jul. 28, 1981
4202420 Rock drill with hard metal drilling head May. 13, 1980
4146098 Masonry cutting tool Mar. 27, 1979
4002214 Drilling tool, especially for hammer drills Jan. 11, 1977
3978932 Apparatus and method for obtaining undisturbed soil core samples Sep. 7, 1976
3977479 Geological exploration method and apparatus Aug. 31, 1976
3955631 Soil sampler May. 11, 1976
3934662 Core bit Jan. 27, 1976











 
 
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