Matches 1 - 50 out of 118 1 2 3 >


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US20110259647 SYSTEMS FOR MANUFACTURING DOWNHOLE TOOLS AND DOWNHOLE TOOL PARTS  
Methods, systems and compositions for manufacturing downhole tools and downhole tool parts for drilling subterranean material are disclosed. A model having an external peripheral shape of a...
US20140196957 TOOTH FOR ROLLER CRUSHER  
An improved tooth for a roller crusher is presented. The tooth can include a first tungsten carbide overlay layer plasma-transfer arc welded on a recessed hemispherical end of the tooth, which is...
US20100307838 METHODS SYSTEMS AND COMPOSITIONS FOR MANUFACTURING DOWNHOLE TOOLS AND DOWNHOLE TOOL PARTS  
Methods, systems and compositions for manufacturing downhole tools and downhole tool parts for drilling subterranean material are disclosed. A model having an external peripheral shape of a...
US20110036639 ROLLER CONE DISK WITH SHAPED COMPACTS  
An earth boring drill bit that includes a cutting cone with a cutting disk. Compacts are inserted within the disk having a chisel shaped end set flush with the cutting disk periphery. The compact...
US20130333951 CUTTING INSERTS, CONES, EARTH BORING TOOLS HAVING GRADING FEATURES, AND RELATED METHODS  
Earth-boring tools include one or more cutting elements having at least one grading feature positioned a known distance from an initial working surface of the cutting element. Methods of grading...
US20120211282 ROCK BIT AND CUTTER TEETH GEOMETRIES  
A rolling cone drill bit for cutting a borehole comprises a rolling cone cutter mounted on a bit body and adapted for rotation about a cone axis. Further, the bit comprises a tooth extending from...
US20100012384 Steel Tooth Bit With Scooped Teeth Profile  
An earth-boring bit has at least one steel tooth with a scoop-shaped profile. The scoop-shaped profile is formed by milling and hardfacing a tooth to have at least one flank with a concave...
US20140360789 SPACING OF ROLLING CUTTERS ON A FIXED CUTTER BIT  
A downhole cutting tool may include a cutting element support, structure having a plurality of cutter pockets formed therein; and a plurality of rotatable cutters disposed in the plurality of...
US20120325562 DIAMOND ENHANCED CUTTING ELEMENTS, EARTH-BORING TOOLS EMPLOYING DIAMOND-ENHANCED CUTTING ELEMENTS, AND METHODS OF MAKING DIAMOND-ENHANCED CUTTING ELEMENTS  
Cutting elements for use in earth-boring applications include a substrate, a transition layer, and a working layer. The transition layer and the working layer comprise a continuous matrix phase...
US20110017517 DIAMOND-ENHANCED CUTTING ELEMENTS, EARTH-BORING TOOLS EMPLOYING DIAMOND-ENHANCED CUTTING ELEMENTS, AND METHODS OF MAKING DIAMOND-ENHANCED CUTTING ELEMENTS  
Cutting elements for use in earth-boring applications include a substrate, a transition layer, and a working layer. The transition layer and the working layer comprise a continuous matrix phase...
US20130075165 CUTTING INSERTS FOR EARTH-BORING BITS  
A cutting insert for an earth-boring bit comprises a cemented carbide material. The cemented carbide material comprises a plurality of tungsten carbide grains, and a plurality of cubic carbide...
US20110168452 Tungsten Carbide Bit with Hardfaced Nose Area  
An earth-boring bit has rotatable cones with rows of carbide elements installed thereon. A nose is symmetrically arranged on a cone axis of one of the cones. The nose has a central core that...
US20130000982 Erosion Resistant Hard Composite Materials  
A hard composite composition may comprise a binder and a polymodal blend of matrix powder. The polymodal blend of matrix powder may have at least one first local maxima at a particle size of about...
US20080011519 Cemented tungsten carbide rock bit cone  
An earth-boring bit has a steel body and bearing pin for rotatably supporting a cone. The cone has an exterior surface containing rows of cutting elements. The cone and cutting elements are formed...
US20140339882 AXIALLY STABLE RETENTION MECHANISM FOR PICKS AND CUTTING ELEMENTS  
A cutting element assembly includes a cutting element partially disposed within a support and a retention mechanism disposed between the cutting element and the support, both the axial and radial...
US20130133951 Erosion Resistant Hard Composite Materials  
A hard composite composition comprises a binder, and a polymodal blend of matrix powder In an embodiment, the polymodal blend of matrix powder has at least one local maxima at a particle size of...
US20090159341 Reamer with balanced cutting structures for use in a wellbore  
An earth boring drill bit comprising cones, each cone having rows of inserts, where the inserts are in the form of a pyramid with four sides. The insert includes ridges at the juncture of each...
US20070187153 Polycrystalline diamond apparatuses and methods of manufacture  
Methods of manufacturing polycrystalline diamond are disclosed. More particularly, a mixture including diamond and fullerenes may be provided. Further, the mixture may be exposed to a high...
US20140299384 WEAR RESISTANT PLATES ON A LEADING TRANSITIONAL SURFACE OF THE LEG FOR A ROTARY CONE DRILL BIT  
In an embodiment, a rotary cone drill bit comprises: a body, a leg depending from the body, a bearing shaft extending from the leg and a cone mounted to the bearing shaft. The leg includes a...
US20130146367 ROLLING CUTTER WITH IMPROVED ROLLING EFFICIENCY  
A cutting structure may include an outer support element; and an inner rotatable cutting element comprising a cutting surface at its upper end; wherein the inner rotatable cutting element...
US20110000715 HARDFACING MATERIALS INCLUDING PCD PARTICLES, WELDING RODS AND EARTH-BORING TOOLS INCLUDING SUCH MATERIALS, AND METHODS OF FORMING AND USING SAME  
Hardfacing materials include particles of polycrystalline diamond (PCD) material embedded within a matrix material. The PCD particles comprise a plurality of inter-bonded diamond grains. Material...
US20060219439 Stress relief feature on PDC cutter  
A cutter having a base portion, an ultrahard layer disposed on the base portion, and at least one relief groove formed on an outer surface of the cutter. The at least one relief groove is...
US20130168155 DIAMOND ENHANCED DRILLING INSERT WITH HIGH IMPACT RESISTANCE  
An insert for a drill bit may include a substrate; a working layer of polycrystalline diamond material on the uppermost end of the insert, wherein the polycrystalline diamond material includes a...
US20130112485 PLOW-SHAPED CUTTING ELEMENTS FOR EARTH-BORING TOOLS, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS, AND RELATED METHODS  
A cutting element for an earth-boring tool includes at least one volume of superabrasive material on a substrate. The volume of superabrasive material includes a first planar surface and a second...
US20090260890 ANTI-TRACKING FEATURE FOR ROCK BITS  
The harmful effects of tracking are reduced for a drill bit having roller cones with at least one of the outermost rows of active teeth containing one or more teeth having a height that does not...
US20130341100 Modular cutting-teeth drill bit with controllable drilling specific pressure  
A modular cutting-teeth drill bit with controllable drilling specific pressure comprises a module (1), a modular unit (2), a bit body (3), conventional cutting teeth (4) and a nozzle (5)....
US20120080238 WEAR RESISTANT MATERIAL AT THE LEADING EDGE OF THE LEG FOR A ROTARY CONE DRILL BIT  
A rotary cone drill bit includes: a body, a leg depending from the body, a bearing shaft extending from the leg and a cone mounted to the bearing shaft. The leg includes a leading edge (at an...
US20050252691 Drill bit having increased resistance to fatigue cracking and method of producing same  
The present invention relates to a roller cone drill bit that includes a bit body adapted to be rotated about a longitudinal axis, where the bit body has at least one leg depending therefrom,...
US20120067651 HARDFACING COMPOSITIONS, METHODS OF APPLYING THE HARDFACING COMPOSITIONS, AND TOOLS USING SUCH HARDFACING COMPOSITIONS  
A hardfacing composition comprising a carbide phase and a matrix phase, The carbide phase comprises mono-tungsten carbide in a quantity of greater than 50 percent by weight, based on the total...
US20100078227 Bar Trimmers On Disk Bit  
An earth boring drill bit comprising a milled cutter having rows of hardfacing guides on the cutter. Hardfacing is applied between adjacent hardfacing guides to form a hardfacing web that serves...
US20140262537 CUTTING ELEMENT WITH IMPROVED SUBSTRATE MATERIAL  
Cutting elements comprise a body and a polycrystalline diamond table disposed thereon, wherein the diamond table has a thickness of greater than about 2 mm. The body is specially formed from WC—Co...
US20140284114 EARTH-BORING TOOLS AND COMPONENTS THEREOF INCLUDING MATERIAL HAVING HARD PHASE IN A METALLIC BINDER, AND METALLIC BINDER COMPOSITIONS FOR USE IN FORMING SUCH TOOLS AND COMPONENTS  
Binder compositions for use in forming a bit body of an earth-boring bit include at least one of cobalt, nickel, and iron, and at least one melting point-reducing constituent selected from at...
US20120097455 EARTH-BORING TOOLS AND COMPONENTS THEREOF INCLUDING MATERIAL HAVING HARD PHASE IN A METALLIC BINDER, AND METALLIC BINDER COMPOSITIONS FOR USE IN FORMING SUCH TOOLS AND COMPONENTS  
Binder compositions for use in forming a bit body of an earth-boring bit includes at least one of cobalt, nickel, and iron, and at least one melting point-reducing constituent selected from at...
US20120080236 WEAR RESISTANT MATERIAL AT THE SHIRTTAIL EDGE AND LEADING EDGE OF A ROTARY CONE DRILL BIT  
A rotary cone drill bit includes: a body, a leg depending from the body, a bearing shaft extending from the leg and a cone mounted to the bearing shaft. The leg includes a surface edge that is...
US20120285293 COMPOSITE SINTERED POWDER METAL ARTICLES  
A composite sintered powder metal article including a first region including a cemented hard particle material such as, for example, cemented carbide. The article includes a second region...
US20090301788 COMPOSITE METAL, CEMENTED CARBIDE BIT CONSTRUCTION  
A manufacturing method and drill bit having either a preformed steel powder blank or machined steel core and abrasion and erosion resistant material components attached thereon.
US20140367174 CUTTING STRUCTURES AND STRUCTURES FOR RETAINING THE SAME  
A downhole cutting tool may include a tool body having at least one cutting element support structure formed thereon, wherein the at least one cutting element support structure comprises at least...
US20100038146 Bit Cone With Hardfaced Nose  
A drill bit for drilling a wellbore, the drill bit having a cutter which has tungsten carbide inserts and a spear point. The spear point has a neck that joins a smooth portion of the cutter and...
US20080060852 Gage configurations for drill bits  
A drill bit includes a plurality of cutting elements are positioned on the at least two roller cones, wherein cutting elements contributing to an operative gage row of the drill bit comprise less...
US20080164070 Reinforcing overlay for matrix bit bodies  
A drill bit that includes a matrix bit body having a reinforcing overlay thereon and having at least one blade thereon; at least one cutter pocket disposed on the at least one blade; at least one...
US20150053422 HYBRID ROTARY CONE DRILL BIT  
A hybrid rotary cone drill bit includes a plurality of legs. A bearing shaft extends from each leg, and a rotary cone is rotationally coupled to each bearing shaft. At least one rotary cone...
US20090283332 CONFORMAL BEARING FOR ROCK DRILL BIT  
A rock drilling bit having PDC radial bearings has journal and cone bearing surfaces with increased contact area to increase load support. The radius of curvature of the bearing pin journal and...
US20090308663 ROTARY DRILL BITS AND DRILLING TOOLS HAVING PROTECTIVE STRUCTURES ON LONGITUDINALLY TRAILING SURFACES  
A rotary drill bit or other drilling tool for drilling or reaming through subterranean formation and comprising a body comprising a distal end and gage areas near a proximal end thereof and...
US20080029310 Particle-matrix composite drill bits with hardfacing and methods of manufacturing and repairing such drill bits using hardfacing materials  
A rotary drill bit includes a bit body substantially formed of a particle-matrix composite material having an exterior surface and an abrasive wear-resistant material disposed on at least a...
US20100078226 Self Sharpening Steel Tooth Cutting Structure  
An earth boring drill bit comprising a milled cutter having rows of teeth hardfacing guides on the cutter. Hardfacing is applied between adjacent teeth hardfacing guides to form a cutting element....
US20050139395 Drill bit with a moissanite (silicon carbide) cutting element  
A cutting element for a rotary-type drill bit is disclosed comprising moissanite (silicon carbide) crystals impregnated within and/or coated on the surface of the cutting elements.
US20120097456 EARTH-BORING TOOLS AND COMPONENTS THEREOF INCLUDING MATERIAL HAVING PRECIPITATE PHASE  
The present invention relates to compositions for forming at least a portion of an earth-boring rotary drill bit. The rotary drill bit may comprise a cemented transition metal carbide composition...
US20070102199 Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies  
Methods of forming bit bodies for earth-boring bits include assembling green components, brown components, or fully sintered components, and sintering the assembled components. Other methods...
US20080251297 PASSIVE AND ACTIVE UP-DRILL FEATURES ON FIXED CUTTER EARTH-BORING TOOLS AND RELATED METHODS  
Earth-boring tools include at least one up-drill feature disposed on a transition surface so as to be passive during down drilling and active during up drilling and/or back reaming operations....
US20100236834 HARDFACING COMPOSITIONS, METHODS OF APPLYING THE HARDFACING COMPOSITIONS, AND TOOLS USING SUCH HARDFACING COMPOSITIONS  
A hardfacing composition comprising an iron-based binder alloy; and a carbide phase comprising a sintered carbide and a cast tungsten carbide, wherein the cast carbide is present in a quantity of...

Matches 1 - 50 out of 118 1 2 3 >