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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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, TX809

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tucker, Chris A Provo, US 1 7
Yong, Zhou Spring, US 39 633
Yu, Jiaqing Houston, US 15 162

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SMITH INTERNATIONAL, INC. (30)
4,832,139 Inclined chisel inserts for rock bits 55 1987
4,811,801 Rock bits and inserts therefor 188 1988
5,172,777 Inclined chisel inserts for rock bits 49 1991
5,172,779 Radial crest insert 41 1991
5,341,890 Ultra hard insert cutters for heel row rotary cone rock bit applications 78 1993
5,322,138 Chisel insert for rock bits 48 1993
5,415,244 Conical inserts for rolling cone rock bits 36 1994
5,421,424 Bowed out chisel insert for rock bits 36 1994
5,813,485 Cutter element adapted to withstand tensile stress 50 1996
5,833,020 Rolling cone bit with enhancements in cutter element placement and materials to optimize borehole corner cutting duty 31 1996
5,839,526 Rolling cone steel tooth bit with enhancements in cutter shape and placement 63 1997
5,915,486 Cutter element adapted to withstand tensile stress 23 1997
6,029,759 Hardfacing on steel tooth cutter element 47 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 49 1997
6,059,054 Non-symmetrical stress-resistant rotary drill bit cutter element 48 1997
6,199,645 Engineered enhanced inserts for rock drilling bits 57 1998
6,161,634 Cutter element with non-rectilinear crest 28 1998
6,241,034 Cutter element with expanded crest geometry 71 1998
* 6,241,035 Superhard material enhanced inserts for earth-boring bits 40 1998
* 6,290,008 Inserts for earth-boring bits 64 1998
6,530,441 Cutting element geometry for roller cone drill bit 11 2000
6,510,910 Unplanar non-axisymmetric inserts 28 2001
6,367,568 Steel tooth cutter element with expanded crest 42 2001
6,561,293 Cutter element with non-linear, expanded crest 27 2001
6,745,645 Enhanced gage protection for milled tooth rock bits 11 2002
6,883,624 Multi-lobed cutter element for drill bit 16 2003
* 6,929,079 Drill bit cutter element having multiple cusps 15 2003
7,040,424 Drill bit and cutter having insert clusters and method of manufacture 13 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 33 2005
 
REEDHYCALOG UK LTD. (1)
6,601,662 Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength 216 2001
 
SANDVIK AB (1)
4,951,762 Drill bit with cemented carbide inserts 118 1989
 
Unicorn Industries Public Limited Company (1)
4,511,006 Drill bit and method of use thereof 61 1983
 
DIAMOND INNOVATIONS, INC. (2)
D324527 Stud-mounted polycrystalline diamond cutting blank 14 1989
5,743,346 Abrasive cutting element and drill bit 45 1996
 
NOAH, WESLEY (1)
7,013,999 Wedge tooth cutter element for drill bit 12 2003
 
WEATHERFORD/LAMB, INC. (1)
6,202,752 Wellbore milling methods 40 1999
 
HALLIBURTON ENERGY SERVICES, INC. (12)
4,722,405 Wear compensating rock bit insert 106 1986
4,716,977 Specially shaped cutting element for earth boring apparatus 28 1986
5,201,376 Rock bit with improved gage insert 50 1992
5,421,423 Rotary cone drill bit with improved cutter insert 55 1994
5,429,200 Rotary drill bit with improved cutter 50 1994
5,452,771 Rotary drill bit with improved cutter and seal protection 97 1994
5,636,700 Roller cone rock bit having improved cutter gauge face surface compacts and a method of construction 39 1995
5,518,077 Rotary drill bit with improved cutter and seal protection 92 1995
5,644,956 Rotary drill bit with improved cutter and method of manufacturing same 61 1995
5,695,019 Rotary cone drill bit with truncated rolling cone cutters and dome area cutter inserts 45 1995
5,709,278 Rotary cone drill bit with contoured inserts and compacts 35 1996
5,755,301 Inserts and compacts with lead-in surface for enhanced retention 31 1996
 
WEATHERFORD TECHNOLOGY HOLDINGS, LLC (2)
5,887,655 Wellbore milling and drilling 146 1997
5,887,668 Wellbore milling-- drilling 134 1997
 
DENNIS TOOL COMPANY (1)
5,379,854 Cutting element for drill bits 107 1993
 
SANDVIK INTELLECTUAL PROPERTY AB (3)
5,881,828 Rock drill bit and cutting inserts 28 1997
5,950,745 Diamond-coated button insert for drilling 14 1997
6,105,693 Partially enhanced percussive drill bit 17 1999
 
MEMORIAL SLOAN-KETTERING CANCER CENTER (1)
5,874,060 Recombinant human anti-Lewis Y antibodies 16 1997
 
HUGHES CHRISTENSEN COMPANY (1)
5,323,865 Earth-boring bit with an advantageous insert cutting structure 33 1992
 
REED-HYCALOG OPERATING, L.P. (1)
5,372,210 Rolling cutter drill bits 54 1993
 
American National Carbide Company (1)
4,854,405 Cutting tools 45 1988
 
EASTMAN CHRISTENSEN COMPANY (1)
4,586,574 Cutter configuration for a gage-to-shoulder transition and face pattern 24 1983
 
AMOCO CORPORATION (1)
5,131,478 Low friction subterranean drill bit and related methods 106 1990
 
KENNAMETAL INC. (2)
5,429,199 Cutting bit and cutting insert 75 1992
6,595,305 Drill bit, hard member, and bit body 35 2000
 
KENNAMETAL PC INC. (1)
6,176,332 Rotatable cutting bit assembly with cutting inserts 21 1998
 
WILLIAM J. BRADY LOVING TRUST, THE (3)
5,303,787 Rotary mining tools 33 1993
5,535,839 Roof drill bit with radial domed PCD inserts 116 1995
D430578 Rotary mining bit 36 1998
 
BAKER HUGHES INCORPORATED (16)
5,351,768 Earth-boring bit with improved cutting structure 60 1993
5,407,022 Free cutting gage insert with relief angle 41 1993
5,479,997 Earth-boring bit with improved cutting structure 81 1994
5,560,440 Bit for subterranean drilling fabricated from separately-formed major components 285 1994
5,533,582 Drill bit cutting element 55 1994
5,542,485 Earth-boring bit with improved cutting structure 41 1995
5,592,995 Earth-boring bit having shear-cutting heel elements 54 1995
5,819,861 Earth-boring bit with improved cutting structure 20 1996
5,697,462 Earth-boring bit having improved cutting structure 86 1996
5,746,280 Earth-boring bit having shear-cutting inner row elements 31 1996
5,752,573 Earth-boring bit having shear-cutting elements 27 1996
5,890,550 Earth-boring bit with wear-resistant material 30 1997
6,053,263 Cutting element tip configuration for an earth-boring bit 33 1998
6,105,694 Diamond enhanced insert for rolling cutter bit 41 1998
6,176,333 Diamond cap cutting elements with flats 19 1998
* 7,152,703 Compact for earth boring bit with asymmetrical flanks and shoulders 22 2004
 
US SYNTHETIC CORPORATION (2)
5,871,060 Attachment geometry for non-planar drill inserts 93 1997
6,196,340 Surface geometry for non-planar drill inserts 60 1997
 
Rock Bit International, Inc. (1)
5,197,555 Rock bit with vectored inserts 57 1991
 
BOYLES BROTHERS DRILLING CO. (1)
4,352,400 Drill bit 50 1980
 
REED ROCK BIT COMPANY (1)
4,334,586 Inserts for drilling bits 63 1980
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2013/0277,120 CUTTING STRUCTURES FOR FIXED CUTTER DRILL BIT AND OTHER DOWNHOLE CUTTING TOOLS 2 2013
 
SMITH INTERNATIONAL, INC. (1)
* 8,887,837 Cutting structures for fixed cutter drill bit and other downhole cutting tools 0 2013
 
BAKER HUGHES INCORPORATED (2)
* 8,973,687 Cutting elements, earth-boring tools incorporating such cutting elements, and methods of forming such cutting elements 0 2011
* 2012/0103,698 CUTTING ELEMENTS, EARTH-BORING TOOLS INCORPORATING SUCH CUTTING ELEMENTS, AND METHODS OF FORMING SUCH CUTTING ELEMENTS 0 2011
 
NATIONAL OILWELL DHT, L.P. (1)
* 9,140,071 Apparatus and method for retaining inserts of a rolling cone drill bit 0 2012
* Cited By Examiner

Maintenance Fees

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7.5 Year Payment $3600.00 $1800.00 $900.00 Jan 20, 2018
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 20, 2022
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Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00