Patent application number | Description | Published |
20100104874 | HIGH PRESSURE SINTERING WITH CARBON ADDITIVES - A method for forming a cutting element that includes sintering a mixture comprising carbide particles, a sp | 04-29-2010 |
20100219001 | ROLLING CUTTER - A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, wherein the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and wherein a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches is disclosed. | 09-02-2010 |
20100230173 | Carbide Composites - A carbide composite material that includes a continuous ductile phase; and at least one discrete carbide region surrounded by the continuous ductile phase, each discrete carbide region may comprise an integrally bridged plurality of cast and/or sintered carbide particles, and each discrete region may have a nodular particle morphology. | 09-16-2010 |
20100236834 | 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 at least 22% by weight, based on the total weight of the carbide phase, and the cast carbide comprises particles having sizes in the range of from 30 to 60 mesh. Also provided is a hardfacing composition comprising an iron-based binder alloy; and a carbide phase comprising a super dense sintered carbide and one or more additional carbide materials, wherein the super dense sintered carbide is present in a quantity of at least 10 percent by weight (% w), based on the total weight of the carbide phase, and comprises particles having sizes in the range of from 16 to 40 mesh. Included are methods of manufacturing such hardfacing compositions and downhole tools having such improved hardfacing compositions applied thereon. | 09-23-2010 |
20100276209 | Roller Cones, Methods of Manufacturing Such Roller Cones, and Drill Bits Incorporating Such Roller Cones - A roller cone drill bit having a layer of wear resistant material applied thereon utilizing a thermal spray process and methods of manufacturing such drill bits. | 11-04-2010 |
20110042145 | METHODS FOR ENHANCING A SURFACE OF A DOWNHOLE TOOL AND DOWNHOLE TOOLS HAVING AN ENHANCED SURFACE - A downhole tool having a layer of wear resistant material applied thereon utilizing a thermal spray process and methods of manufacturing such downhole tools. | 02-24-2011 |
20120073881 | ROLLING CUTTER - A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, wherein the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and wherein a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches is disclosed. | 03-29-2012 |
20120168232 | LOCALIZED FEATURES AND MANUFACTURING METHODS FOR INSERTS OF ROCK BITS - An insert for a drill bit and method of making an insert is disclosed herein. An insert has a grip region, a cutting extension having a cutting surface, and at least one implant embedded in the cutting extension, wherein the cutting extension comprises a first carbide material and the implant comprises a second carbide material, and wherein the second carbide material has a hardness that is greater than the first carbide material. | 07-05-2012 |
20120312602 | HIGHLY WEAR RESISTANT COMPOSITE ROTARY SEALS WITH WEAR LAYER AT INNER DIAMETER AND/OR OUTER DIAMETER EMBEDDED INSIDE OR BETWEEN RUBBER LAYERS - A composite journal seal for use in a roller cone drill bit may include a substantially ring shaped elastomeric body having at least two axial, radial, or canted sealing surfaces, at least one of the at least two axial, radial, or canted sealing surface being a dynamic sealing surface, and at least one reinforcement layer embedded at least 0.005 inches from the at least one dynamic sealing surface. | 12-13-2012 |
20130098688 | DRILL BITS HAVING ROTATING CUTTING STRUCTURES THEREON - A drill bit may include a bit body rotatable about a longitudinal axis and having, at one end, a connection for securing the drill bit to a drill string and having a face opposite the connection end; and a plurality of cutting structures having at least one fixed cutting structure disposed on the bit body face and at least one cutting body rotatably attached to the face of the bit body; wherein, in a rotated view of the plurality of cutting structures into a single plane, there is substantially no radial overlap between at least one fixed cutting structure and the at least one cutting body. | 04-25-2013 |
20130220707 | ROLLING CUTTER - A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, wherein the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and wherein a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches is disclosed. | 08-29-2013 |
20140345951 | ROLLING CUTTER - A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, wherein the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and wherein a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches is disclosed. | 11-27-2014 |