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
Stats
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Jul 20, 2010
Issued date -
Jun 21, 2005
filing date -
11/157,656
serial no -
In Force
status
Importance
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Abstract
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
Related Publications
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,832,139 Inclined chisel inserts for rock bits | 53 | 1987 | |
| 4,811,801 Rock bits and inserts therefor | 115 | 1988 | |
| 5,172,777 Inclined chisel inserts for rock bits | 45 | 1991 | |
| 5,172,779 Radial crest insert | 36 | 1991 | |
| 5,341,890 Ultra hard insert cutters for heel row rotary cone rock bit applications | 72 | 1993 | |
| 5,322,138 Chisel insert for rock bits | 45 | 1993 | |
| 5,415,244 Conical inserts for rolling cone rock bits | 31 | 1994 | |
| 5,421,424 Bowed out chisel insert for rock bits | 35 | 1994 | |
| 5,813,485 Cutter element adapted to withstand tensile stress | 43 | 1996 | |
| 5,833,020 Rolling cone bit with enhancements in cutter element placement and materials to optimize borehole corner cutting duty | 29 | 1996 | |
| 5,839,526 Rolling cone steel tooth bit with enhancements in cutter shape and placement | 53 | 1997 | |
| 5,915,486 Cutter element adapted to withstand tensile stress | 22 | 1997 | |
| 6,029,759 Hardfacing on steel tooth cutter element | 42 | 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 | 43 | 1997 | |
| 6,059,054 Non-symmetrical stress-resistant rotary drill bit cutter element | 33 | 1997 | |
| 6,199,645 Engineered enhanced inserts for rock drilling bits | 36 | 1998 | |
| 6,161,634 Cutter element with non-rectilinear crest | 27 | 1998 | |
| 6,241,034 Cutter element with expanded crest geometry | 58 | 1998 | |
| 6,241,035 Superhard material enhanced inserts for earth-boring bits | 22 | 1998 | |
| 6,290,008 Inserts for earth-boring bits | 33 | 1998 | |
| 6,530,441 Cutting element geometry for roller cone drill bit | 10 | 2000 | |
| 6,510,910 Unplanar non-axisymmetric inserts | 22 | 2001 | |
| 6,367,568 Steel tooth cutter element with expanded crest | 28 | 2001 | |
| 6,561,293 Cutter element with non-linear, expanded crest | 17 | 2001 | |
| 6,745,645 Enhanced gage protection for milled tooth rock bits | 10 | 2002 | |
| 6,883,624 Multi-lobed cutter element for drill bit | 13 | 2003 | |
| 6,929,079 Drill bit cutter element having multiple cusps | 12 | 2003 | |
| 7,040,424 Drill bit and cutter having insert clusters and method of manufacture | 9 | 2003 | |
| 6,782,959 Cutter element with non-linear, expanded crest | 11 | 2003 | |
| 2005/0247,492 Cutter having shaped working surface with varying edge chamber | 14 | 2005 | |
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| 5,351,768 Earth-boring bit with improved cutting structure | 57 | 1993 | |
| 5,407,022 Free cutting gage insert with relief angle | 40 | 1993 | |
| 5,479,997 Earth-boring bit with improved cutting structure | 60 | 1994 | |
| 5,560,440 Bit for subterranean drilling fabricated from separately-formed major components | 202 | 1994 | |
| 5,533,582 Drill bit cutting element | 34 | 1994 | |
| 5,542,485 Earth-boring bit with improved cutting structure | 40 | 1995 | |
| 5,592,995 Earth-boring bit having shear-cutting heel elements | 47 | 1995 | |
| 5,819,861 Earth-boring bit with improved cutting structure | 19 | 1996 | |
| 5,697,462 Earth-boring bit having improved cutting structure | 60 | 1996 | |
| 5,746,280 Earth-boring bit having shear-cutting inner row elements | 29 | 1996 | |
| 5,752,573 Earth-boring bit having shear-cutting elements | 25 | 1996 | |
| 5,890,550 Earth-boring bit with wear-resistant material | 28 | 1997 | |
| 6,053,263 Cutting element tip configuration for an earth-boring bit | 22 | 1998 | |
| 6,105,694 Diamond enhanced insert for rolling cutter bit | 19 | 1998 | |
| 6,176,333 Diamond cap cutting elements with flats | 14 | 1998 | |
| 7,152,703 Compact for earth boring bit with asymmetrical flanks and shoulders | 8 | 2004 | |
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| 4,722,405 Wear compensating rock bit insert | 85 | 1986 | |
| 4,716,977 Specially shaped cutting element for earth boring apparatus | 26 | 1986 | |
| 5,201,376 Rock bit with improved gage insert | 47 | 1992 | |
| 5,421,423 Rotary cone drill bit with improved cutter insert | 47 | 1994 | |
| 5,429,200 Rotary drill bit with improved cutter | 38 | 1994 | |
| 5,452,771 Rotary drill bit with improved cutter and seal protection | 67 | 1994 | |
| 5,636,700 Roller cone rock bit having improved cutter gauge face surface compacts and a method of construction | 35 | 1995 | |
| 5,518,077 Rotary drill bit with improved cutter and seal protection | 63 | 1995 | |
| 5,644,956 Rotary drill bit with improved cutter and method of manufacturing same | 44 | 1995 | |
| 5,695,019 Rotary cone drill bit with truncated rolling cone cutters and dome area cutter inserts | 29 | 1995 | |
| 5,709,278 Rotary cone drill bit with contoured inserts and compacts | 27 | 1996 | |
| 5,755,301 Inserts and compacts with lead-in surface for enhanced retention | 29 | 1996 | |
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| 5,881,828 Rock drill bit and cutting inserts | 23 | 1997 | |
| 5,950,745 Diamond-coated button insert for drilling | 13 | 1997 | |
| 6,105,693 Partially enhanced percussive drill bit | 15 | 1999 | |
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| 5,887,655 Wellbore milling and drilling | 121 | 1997 | |
| 5,887,668 Wellbore milling-- drilling | 126 | 1997 | |
| 6,202,752 Wellbore milling methods | 31 | 1999 | |
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| 5,303,787 Rotary mining tools | 28 | 1993 | |
| 5,535,839 Roof drill bit with radial domed PCD inserts | 91 | 1995 | |
| D430578 Rotary mining bit | 35 | 1998 | |
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| D324527 Stud-mounted polycrystalline diamond cutting blank | 13 | 1989 | |
| 5,743,346 Abrasive cutting element and drill bit | 42 | 1996 | |
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| 5,429,199 Cutting bit and cutting insert | 60 | 1992 | |
| 6,595,305 Drill bit, hard member, and bit body | 24 | 2000 | |
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| 5,871,060 Attachment geometry for non-planar drill inserts | 61 | 1997 | |
| 6,196,340 Surface geometry for non-planar drill inserts | 42 | 1997 | |
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| 4,854,405 Cutting tools | 37 | 1988 | |
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| 5,131,478 Low friction subterranean drill bit and related methods | 97 | 1990 | |
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| 4,352,400 Drill bit | 45 | 1980 | |
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| 5,379,854 Cutting element for drill bits | 99 | 1993 | |
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| 4,586,574 Cutter configuration for a gage-to-shoulder transition and face pattern | 22 | 1983 | |
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| 5,323,865 Earth-boring bit with an advantageous insert cutting structure | 30 | 1992 | |
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| 6,176,332 Rotatable cutting bit assembly with cutting inserts | 19 | 1998 | |
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| 5,874,060 Recombinant human anti-Lewis Y antibodies | 14 | 1997 | |
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| 7,013,999 Wedge tooth cutter element for drill bit | 10 | 2003 | |
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| 5,372,210 Rolling cutter drill bits | 52 | 1993 | |
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| 4,334,586 Inserts for drilling bits | 59 | 1980 | |
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| 4,254,840 Drill bit insert | 18 | 1978 | |
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| 6,601,662 Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength | 114 | 2001 | |
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| 5,197,555 Rock bit with vectored inserts | 53 | 1991 | |
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| 4,951,762 Drill bit with cemented carbide inserts | 91 | 1989 | |
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| 4,511,006 Drill bit and method of use thereof | 46 | 1983 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jan 20, 2014 |
| 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 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| 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 |