Matches 1 - 50 out of 129 1 2 3 >
Match Document Document Title
7396505 Use of CoCrMo to augment biocompatibility in polycrystalline diamond compacts  
CoCrMo can be used to enhance biocompatibility of a sintered polycrystalline diamond compact.
7396501 Use of gradient layers and stress modifiers to fabricate composite constructs  
Use of gradient layers and stress modifiers in superhard constructs.
7392865 Randomly-oriented composite constructions  
Composite constructions comprise a plurality of granules that are arranged together in a randomly-oriented manner. The granules each comprise an ordered arrangement of a first material phase and a...
EP1935537A2 Multiple processes of high pressures and temperatures for sintered bodies  
A method for forming a carbide composite that includes providing a mixture of carbide particles and a metallic binder in a container; sintering the container contents at a first processing...
EP1923475A2 Polycrystalline composites reinforced with elongated nanostructures  
A sintered polycrystalline composite for cutting tools that includes a plurality of diamond or cubic boron nitride particles; a plurality of nanotube materials; and a refractory or binder material...
7350601 Cutting elements formed from ultra hard materials having an enhanced construction  
Cutting elements of this invention include an ultra hard body joined with a metallic substrate. The body includes an uppermost layer comprising a plurality of bonded ultra hard crystals and...
7243744 Randomly-oriented composite constructions  
Composite constructions comprise a plurality of granules that are arranged together in a randomly-oriented manner. The granules each comprise an ordered arrangement of a first material phase and a...
7077867 Prosthetic knee joint having at least one diamond articulation surface  
Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for...
6955233 Roller cone drill bit legs  
A method is disclosed for applying hardfacing to a shirttail portion of a roller cone drill bit, including masking around the shirttail portion of the bit and operating a high pressure/high...
6800095 Diamond-surfaced femoral head for use in a prosthetic joint  
Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for...
6793681 Prosthetic hip joint having a polycrystalline diamond articulation surface and a plurality of substrate layers  
Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for...
6742609 Rotational impact drill assembly  
Apparatus is provided for introducing a consistent series of small and localized rotary impacts to a PDC bit during drilling, to improve PDC drill bit performance. Rotary impact supplements the...
6719074 Insert chip of oil-drilling tricone bit, manufacturing method thereof and oil-drilling tricone bit  
An insert chip of an oil-drilling tricone bit includes an insert-chip substrate made of a cemented carbide of a first composition, and further includes a cemented carbide coating layer constituted...
6709463 Prosthetic joint component having at least one solid polycrystalline diamond component  
Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for...
6696137 Woven and packed composite constructions  
PCD and PCBN composite constructions have an ordered structure of two or more material phases that are combined together in a packed or interwoven configuration. One of the material phases is...
6676704 Prosthetic joint component having at least one sintered polycrystalline diamond compact articulation surface and substrate surface topographical features in said polycrystalline diamond compact  
Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for...
6655845 Bearings, races and components thereof having diamond and other superhard surfaces  
Diamond bearings and bearing components are disclosed. Some embodiments of the bearings and bearing components include polycrystalline diamond compacts sintered under high pressure and high...
6651757 Toughness optimized insert for rock and hammer bits  
An insert for a drill bit is disclosed which includes an exposed surface having a contact portion adapted to periodically contact earthen formation. The contact portion includes a polycrystalline...
6610095 Prosthetic joint having substrate surface topographical featurers and at least one diamond articulation surface  
Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for...
6596225 Methods for manufacturing a diamond prosthetic joint component  
Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for...
EP0802301B1 Earth-boring bit with super-hard cutting elements  
Abstract of EP0802301 An earth-boring bit has a bit body and at least one cantilevered bearing shaft depending inwardly and downwardly from the bit body. A cutter is mounted for rotation on the...
6547017 Rotary drill bit compensating for changes in hardness of geological formations  
A long lasting rotary drill bit for drilling a hole into variable hardness geological formations that has a self-actuating mechanism responsive to the hardness of the geological formation to...
6517583 Prosthetic hip joint having a polycrystalline diamond compact articulation surface and a counter bearing surface  
Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for...
6514289 Diamond articulation surface for use in a prosthetic joint  
Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for...
6510909 Rolling cone bit with gage and off-gage cutter elements positioned to separate sidewall and bottom hole cutting duty  
A rolling cone bit includes at least one cone cutter having a gage row of cutter elements and a first inner row of near but off-gage cutter elements that are positioned so as to divide the sidewall...
6499547 Multiple grade carbide for diamond capped insert  
An insert for a rolling cone earth-boring bit has a cylindrical base that interferingly presses into a mating hole formed in a cone of the bit. The insert has a convex end that extends from the...
6494918 Component for a prosthetic joint having a diamond load bearing and articulation surface  
Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for...
6484826 Engineered enhanced inserts for rock drilling bits  
Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock...
6468066 Wear resistant insert for balling drum assembly  
The present invention relates to a balling drum assembly including a wear resistant insert. The balling drum assembly includes an inclined rotary drum member having an inlet at its one end for...
6460637 Engineered enhanced inserts for rock drilling bits  
Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock...
6454027 Polycrystalline diamond carbide composites  
Polycrystalline diamond (PCD) carbide composites of this invention have a microstructure comprising a plurality of granules formed from PCD, polycrystalline cubic boron nitride, or mixture thereof,...
6443248 Drill bit inserts with interruption in gradient of properties  
A cutter element for use in a drill bit, comprising a substrate and a plurality of layers thereon. The substrate comprises a grip portion and an extending portion. The layers are applied to the...
6419034 Engineered enhanced inserts for rock drilling bits  
Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock...
6402787 Prosthetic hip joint having at least one sintered polycrystalline diamond compact articulation surface and substrate surface topographical features in said polycrystalline diamond compact  
Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for...
6390210 Rolling cone bit with gage and off-gage cutter elements positioned to separate sidewall and bottom hole cutting duty  
A rolling cone bit includes at least one cone cutter having a gage row of cutter elements and a first inner row of near but off-gage cutter elements that are positioned so as to divide the sidewall...
6315065 Drill bit inserts with interruption in gradient of properties  
A cutter element for use in a drill bit, comprising a substrate and a plurality of layers thereon. The substrate comprises a grip portion and an extending portion. The layers are applied to the...
6290008 Inserts for earth-boring bits  
A polycrystalline diamond enhanced insert is disclosed. The insert includes a body portion adapted for attachment to an earth-boring bit and a top portion for contacting an earthen formation. The...
6283234 Apparatus for mounting PCD compacts  
A method and apparatus for improved attachment of an ultra-hard compact, especially a two-layer disk-type PCD compact, to a tool or support surface with a mechanical connection. In general the...
6260639 Drill bit inserts with zone of compressive residual stress  
A cutter element for use in a drill bit, has a substrate comprising a grip portion and an extension and at least a cutting layer affixed to said substrate. The cutting layer has a cutting surface...
6241035 Superhard material enhanced inserts for earth-boring bits  
Superhard material enhanced inserts and methods of making the same have been disclosed. The enhanced insert includes a body portion adapted for attachment to the earth-boring bit and a top portion...
6227318 Superhard material enhanced inserts for earth-boring bits  
Superhard material enhanced inserts include a body portion adapted for attachment to the earth-boring bit and a top portion for contacting an earthen formation to be drilled. The top portion...
6214079 Triphasic composite and method for making same  
A method for fabricating a triphasic composite such as a WC/Co/diamond composite with a high volume fraction of diamond in a WC/Co matrix. The method involves sintering of a WC/Co powder compact to...
6199645 Engineered enhanced inserts for rock drilling bits  
Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock...
6196340 Surface geometry for non-planar drill inserts  
A cutting element insert is provided for use with drills used in the drilling and boring through of subterranean formations. This new insert has a modified diamond surface shape having ridges,...
6170583 Inserts and compacts having coated or encrusted cubic boron nitride particles  
An insert is provided for a rock bit for drilling bore holes in the ground and other downhole tools. The cutting portion of the inserts consist of encrusted cubic boron nitride pellets, tungsten...
6138779 Hardfacing having coated ceramic particles or coated particles of other hard materials placed on a rotary cone cutter  
Hardfacing to protect wear surfaces of drill bits and other downhole tools having coated cubic boron nitride particles or coated particles of other ceramic, superabrasive or superhard materials...
6102140 Inserts and compacts having coated or encrusted diamond particles  
The improved insert for a ground engaging tool, with a plurality of sockets for receiving a respective insert comprises a body having first and second portions and first and second zones. The first...
6098730 Earth-boring bit with super-hard cutting elements  
An earth-boring bit has a bit body and at least one cantilevered bearing shaft depending inwardly and downwardly from the bit body. A cutter is mounted for rotation on the bearing shaft and...
6068071 Cutter with polycrystalline diamond layer and conic section profile  
Polycrystalline diamond cutter (PDC) designs which substantially improve the penetration rate of fixed cutter drill bits while simultaneously reducing the wear on the bit during drilling operations...
6051079 Diamond coated cutting tool insert  
A wear resistant, diamond enhanced cutting tool for excavating is disclosed. The cutting tool includes a cutting insert having a diamond coated cutting tip brazed to the cutting insert. The cutting...
Matches 1 - 50 out of 129 1 2 3 >