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Class Information
Number: 175/432
Name: Boring or penetrating the earth > Bit or bit element > Specific or diverse material > Insert > Preformed cutting element (e.g., compact) mounted on a distinct support (e.g., blank, stud, shank) > With support detail
Description: Structure in which significance is attributed to a structural feature of the backing or substructure portion.

Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
7368079 Method for forming ultra hard sintered compacts using metallic peripheral structures in the sintering cell May. 6, 2008
7360608 Rotary drill bits including at least one substantially helically extending feature and methods of operation Apr. 22, 2008
7316279 Polycrystalline cutter with multiple cutting edges Jan. 8, 2008
7287610 Cutting elements and bits incorporating the same Oct. 30, 2007
7270199 Cutting element with a non-shear stress relieving substrate interface Sep. 18, 2007
7243745 Cutting elements and rotary drill bits including same Jul. 17, 2007
7234550 Bits and cutting structures Jun. 26, 2007
7207402 Percussion drill bit and a regrindable cemented carbide button therefor Apr. 24, 2007
7165636 Cutting element with canted interface surface and bit body incorporating the same Jan. 23, 2007
7159487 Method for making a polycrystalline diamond insert drill bit body Jan. 9, 2007
7140448 Stepped polycrystalline diamond compact insert Nov. 28, 2006
7096981 Alternating inclinations of compacts for drill bit Aug. 29, 2006
7070011 Steel body rotary drill bits including support elements affixed to the bit body at least partially defining cutter pocket recesses Jul. 4, 2006
7066288 Asymmetric compact for drill bit Jun. 27, 2006
7040424 Drill bit and cutter having insert clusters and method of manufacture May. 9, 2006
7025155 Rock bit with channel structure for retaining cutter segments Apr. 11, 2006
7011170 Increased projection for compacts of a rolling cone drill bit Mar. 14, 2006
6991049 Cutting element Jan. 31, 2006
6962218 Cutting elements with improved cutting element interface design and bits incorporating the same Nov. 8, 2005
6945340 Roof bit and insert assembly Sep. 20, 2005
6932172 Rotary contact structures and cutting elements Aug. 23, 2005
6904984 Stepped polycrystalline diamond compact insert Jun. 14, 2005
6892836 Cutting element having a substrate, a transition layer and an ultra hard material layer May. 17, 2005
6823952 Structure for polycrystalline diamond insert drill bit body Nov. 30, 2004
6772848 Superabrasive cutters with arcuate table-to-substrate interfaces and drill bits so equipped Aug. 10, 2004
6739417 Superabrasive cutters and drill bits so equipped May. 25, 2004
6684968 Roof bit body and insert assembly Feb. 3, 2004
6571891 Web cutter Jun. 3, 2003
6527069 Superabrasive cutter having optimized table thickness and arcuate table-to-substrate interfaces Mar. 4, 2003
6488106 Superabrasive cutting element Dec. 3, 2002
6458471 Reinforced abrasive-impregnated cutting elements, drill bits including same and methods Oct. 1, 2002
6412580 Superabrasive cutter with arcuate table-to-substrate interfaces Jul. 2, 2002
6408958 Superabrasive cutting assemblies including cutters of varying orientations and drill bits so equipped Jun. 25, 2002
6408959 Polycrystalline diamond compact cutter having a stress mitigating hoop at the periphery Jun. 25, 2002
6405814 Cutting element with canted design for improved braze contact area Jun. 18, 2002
6401845 Cutting element with stress reduction Jun. 11, 2002
6401844 Cutter with complex superabrasive geometry and drill bits so equipped Jun. 11, 2002
6367568 Steel tooth cutter element with expanded crest Apr. 9, 2002
6330924 Superhard drill bit heel, gage, and cutting elements with reinforced periphery Dec. 18, 2001
6328117 Drill bit having a fluid course with chip breaker Dec. 11, 2001
6315067 Cutting element with stress reduction Nov. 13, 2001
6315066 Microwave sintered tungsten carbide insert featuring thermally stable diamond or grit diamond reinforcement Nov. 13, 2001
6302224 Drag-bit drilling with multi-axial tooth inserts Oct. 16, 2001
6298930 Drill bits with controlled cutter loading and depth of cut Oct. 9, 2001
6283234 Apparatus for mounting PCD compacts Sep. 4, 2001
6260639 Drill bit inserts with zone of compressive residual stress Jul. 17, 2001
6244365 Unplanar non-axisymmetric inserts Jun. 12, 2001
6241034 Cutter element with expanded crest geometry Jun. 5, 2001
6241036 Reinforced abrasive-impregnated cutting elements, drill bits including same Jun. 5, 2001
6241035 Superhard material enhanced inserts for earth-boring bits Jun. 5, 2001

1 2 3 4 5 6

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