US Patent No: 7,757,789

Number of patents in Portfolio can not be more than 2000

Drill bit and insert having bladed interface between substrate and coating

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ALSO PUBLISHED AS: 20060283639
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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A rolling cone bit and a cutting insert for a rolling cone are disclosed. The insert includes an undulating cutting surface including a peak, and blades radiating therefrom. The cutting insert may include an ultrahard layer of diamond or other superabrasive material, wherein the outer cutting surface of the layer includes contours that generally correspond to the contours of the interface surface that is between the ultrahard layer and the substrate so as to reduce residual stresses and lessen the likelihood of spalling or delamination of the ultrahard material. The blades radiate from a central peak and may include a sharper and/or higher leading edge as compared to a trailing edge. Valleys between the blades may differ in depth, and the cutting surface may have an undulating perimeter.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SMITH INTERNATIONAL, INC.HOUSTON, TX987

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tucker, Chris A Provo, UT 2 2
Yong, Zhou Spring, TX 53 352
Yu, Jiaqing Houston, TX 19 56

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SMITH INTERNATIONAL, INC. (30)
4,832,139 Inclined chisel inserts for rock bits 54 1987
4,811,801 Rock bits and inserts therefor 135 1988
5,172,777 Inclined chisel inserts for rock bits 46 1991
5,172,779 Radial crest insert 37 1991
5,341,890 Ultra hard insert cutters for heel row rotary cone rock bit applications 76 1993
5,322,138 Chisel insert for rock bits 46 1993
5,415,244 Conical inserts for rolling cone rock bits 31 1994
5,421,424 Bowed out chisel insert for rock bits 36 1994
5,813,485 Cutter element adapted to withstand tensile stress 45 1996
5,833,020 Rolling cone bit with enhancements in cutter element placement and materials to optimize borehole corner cutting duty 30 1996
5,839,526 Rolling cone steel tooth bit with enhancements in cutter shape and placement 56 1997
5,915,486 Cutter element adapted to withstand tensile stress 23 1997
6,029,759 Hardfacing on steel tooth cutter element 45 1997
5,967,245 Rolling cone bit having gage and nestled gage cutter elements having enhancements in materials and geometry to optimize borehole corner cutting duty 45 1997
6,059,054 Non-symmetrical stress-resistant rotary drill bit cutter element 36 1997
6,199,645 Engineered enhanced inserts for rock drilling bits 48 1998
6,161,634 Cutter element with non-rectilinear crest 28 1998
6,241,034 Cutter element with expanded crest geometry 62 1998
6,241,035 Superhard material enhanced inserts for earth-boring bits 27 1998
6,290,008 Inserts for earth-boring bits 45 1998
6,530,441 Cutting element geometry for roller cone drill bit 11 2000
6,510,910 Unplanar non-axisymmetric inserts 25 2001
6,367,568 Steel tooth cutter element with expanded crest 31 2001
6,561,293 Cutter element with non-linear, expanded crest 22 2001
6,745,645 Enhanced gage protection for milled tooth rock bits 11 2002
6,883,624 Multi-lobed cutter element for drill bit 14 2003
6,929,079 Drill bit cutter element having multiple cusps 13 2003
7,040,424 Drill bit and cutter having insert clusters and method of manufacture 10 2003
6,782,959 Cutter element with non-linear, expanded crest 12 2003
2005/0247,492 Cutter having shaped working surface with varying edge chamber 18 2005
 
BAKER HUGHES INCORPORATED (16)
5,351,768 Earth-boring bit with improved cutting structure 58 1993
5,407,022 Free cutting gage insert with relief angle 41 1993
5,479,997 Earth-boring bit with improved cutting structure 67 1994
5,560,440 Bit for subterranean drilling fabricated from separately-formed major components 231 1994
5,533,582 Drill bit cutting element 41 1994
5,542,485 Earth-boring bit with improved cutting structure 41 1995
5,592,995 Earth-boring bit having shear-cutting heel elements 50 1995
5,819,861 Earth-boring bit with improved cutting structure 20 1996
5,697,462 Earth-boring bit having improved cutting structure 67 1996
5,746,280 Earth-boring bit having shear-cutting inner row elements 30 1996
5,752,573 Earth-boring bit having shear-cutting elements 26 1996
5,890,550 Earth-boring bit with wear-resistant material 29 1997
6,053,263 Cutting element tip configuration for an earth-boring bit 24 1998
6,105,694 Diamond enhanced insert for rolling cutter bit 28 1998
6,176,333 Diamond cap cutting elements with flats 15 1998
7,152,703 Compact for earth boring bit with asymmetrical flanks and shoulders 14 2004
 
HALLIBURTON ENERGY SERVICES, INC. (12)
4,722,405 Wear compensating rock bit insert 94 1986
4,716,977 Specially shaped cutting element for earth boring apparatus 28 1986
5,201,376 Rock bit with improved gage insert 48 1992
5,421,423 Rotary cone drill bit with improved cutter insert 50 1994
5,429,200 Rotary drill bit with improved cutter 45 1994
5,452,771 Rotary drill bit with improved cutter and seal protection 79 1994
5,636,700 Roller cone rock bit having improved cutter gauge face surface compacts and a method of construction 37 1995
5,518,077 Rotary drill bit with improved cutter and seal protection 76 1995
5,644,956 Rotary drill bit with improved cutter and method of manufacturing same 55 1995
5,695,019 Rotary cone drill bit with truncated rolling cone cutters and dome area cutter inserts 36 1995
5,709,278 Rotary cone drill bit with contoured inserts and compacts 32 1996
5,755,301 Inserts and compacts with lead-in surface for enhanced retention 30 1996
 
SANDVIK INTELLECTUAL PROPERTY AB (3)
5,881,828 Rock drill bit and cutting inserts 24 1997
5,950,745 Diamond-coated button insert for drilling 14 1997
6,105,693 Partially enhanced percussive drill bit 16 1999
 
WEATHERFORD/LAMB, INC. (3)
5,887,655 Wellbore milling and drilling 126 1997
5,887,668 Wellbore milling-- drilling 130 1997
6,202,752 Wellbore milling methods 34 1999
 
WILLIAM J. BRADY LOVING TRUST, THE (3)
5,303,787 Rotary mining tools 30 1993
5,535,839 Roof drill bit with radial domed PCD inserts 107 1995
D430578 Rotary mining bit 36 1998
 
DIAMOND INNOVATIONS, INC. (2)
D324527 Stud-mounted polycrystalline diamond cutting blank 14 1989
5,743,346 Abrasive cutting element and drill bit 44 1996
 
KENNAMETAL INC. (2)
5,429,199 Cutting bit and cutting insert 63 1992
6,595,305 Drill bit, hard member, and bit body 28 2000
 
US SYNTHETIC CORPORATION (2)
5,871,060 Attachment geometry for non-planar drill inserts 68 1997
6,196,340 Surface geometry for non-planar drill inserts 48 1997
 
American National Carbide Company (1)
4,854,405 Cutting tools 38 1988
 
AMOCO CORPORATION (1)
5,131,478 Low friction subterranean drill bit and related methods 102 1990
 
BOYLES BROTHERS DRILLING CO. (1)
4,352,400 Drill bit 47 1980
 
DENNIS TOOL COMPANY (1)
5,379,854 Cutting element for drill bits 102 1993
 
EASTMAN CHRISTENSEN COMPANY (1)
4,586,574 Cutter configuration for a gage-to-shoulder transition and face pattern 24 1983
 
HUGHES CHRISTENSEN COMPANY (1)
5,323,865 Earth-boring bit with an advantageous insert cutting structure 32 1992
 
KENNAMETAL PC INC. (1)
6,176,332 Rotatable cutting bit assembly with cutting inserts 20 1998
 
MEMORIAL SLOAN-KETTERING CANCER CENTER (1)
5,874,060 Recombinant human anti-Lewis Y antibodies 15 1997
 
NOAH, WESLEY (1)
7,013,999 Wedge tooth cutter element for drill bit 11 2003
 
REED HYCALOG OPERATING LP (1)
5,372,210 Rolling cutter drill bits 54 1993
 
REED ROCK BIT COMPANY (1)
4,334,586 Inserts for drilling bits 61 1980
 
REED TOOL COMPANY (1)
4,254,840 Drill bit insert 19 1978
 
REEDHYCALOG UK LTD. (1)
6,601,662 Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength 147 2001
 
Rock Bit International, Inc. (1)
5,197,555 Rock bit with vectored inserts 56 1991
 
SANDVIK AB (1)
4,951,762 Drill bit with cemented carbide inserts 107 1989
 
Unicorn Industries Public Limited Company (1)
4,511,006 Drill bit and method of use thereof 51 1983

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