| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | MOLD ASSEMBLIES WITH INTEGRATED THERMAL MASS FOR FABRICATING INFILTRATED DOWNHOLE TOOLS | US14779028 | 2014-12-02 | US20160325350A1 | 2016-11-10 | Grant O. Cook, III; Garrett T. Olsen; Jeffrey G. Thomas; Clayton A. Ownby |
| An example mold assembly for fabricating an infiltrated downhole tool includes a mold defining a bottom of the mold assembly and a funnel operatively coupled to the mold. An infiltration chamber is defined at least partially by the mold and the funnel to receive and contain matrix reinforcement materials and a binder material used to form the infiltrated downhole tool. A thermal mass is positioned within the infiltration chamber above the infiltrated downhole tool for imparting heat to the infiltrated downhole tool following an infiltration process. | ||||||
| 162 | MOLD ASSEMBLIES THAT ACTIVELY HEAT INFILTRATED DOWNHOLE TOOLS | US14781047 | 2014-12-02 | US20160325343A1 | 2016-11-10 | Clayton A. Ownby; Grant O. Cook, III; Jeffrey G. Thomas; Ronald Eugene Joy; Garrett T. Olsen; Daniel Brendan Voglewede |
| An example mold assembly for fabricating an infiltrated downhole tool includes a mold forming a bottom of the mold assembly, and a funnel operatively coupled to the mold. An infiltration chamber is defined at least partially by the mold and the funnel to receive and contain matrix reinforcement materials and a binder material used to form the infiltrated downhole tool. One or more thermal elements are positioned within at least one of the mold and the funnel, and the one or more thermal elements are in thermal communication with the infiltration chamber. | ||||||
| 163 | Composite cast tool | US12920886 | 2009-03-05 | US09427802B2 | 2016-08-30 | Christer Svensson; Tomas Nilsson |
| A composite cast tool is cast in one continuous piece, partly of steel and partly of grey iron, so that an interconnection zone is formed between the steel and the grey iron. The steel portion forms the working component of the tool, for example a cutting edge, and the grey iron portion forms the body component of the tool. The steel portion and the grey iron portion have projections or walls extending towards one another. The interconnection zone is located in the region of union between these walls and is planar. | ||||||
| 164 | Method of casting | US14243471 | 2014-04-02 | US09192987B2 | 2015-11-24 | Thomas John Yaniak; Thomas Majewski |
| A method of casting an article includes positioning a first portion of the article, formed from a first material, in a rotatable mold. Additionally, the method includes, while rotating the mold, pouring a molten second material into the mold over the first portion to form a second portion of the article that is metallurgically bonded to the first portion of the article. | ||||||
| 165 | Use of liquid metal filters in forming matrix drill bits | US14081031 | 2013-11-15 | US09089903B2 | 2015-07-28 | Jeffrey Thomas; Clayton Ownby; Ron Joy; Gary Weaver; Seth Anderle |
| Of the many embodiments provided, one embodiment is a drill bit mold assembly comprising: a mold having a bottom and at least one side; a core centrally disposed within the mold; and a filter disposed above the bottom of the mold and within a space formed between the at least one side of the mold and the core. | ||||||
| 166 | ARTICLES COMPRISING METAL, HARD MATERIAL, AND AN INOCULANT | US14643867 | 2015-03-10 | US20150183085A1 | 2015-07-02 | John H. Stevens |
| Methods of forming at least a portion of an earth-boring tool include providing particulate matter including a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity, and providing an inoculant within the mold cavity. Methods of forming a roller cone of an earth-boring rotary drill bit include forming a molten composition, casting the molten composition within a mold cavity, solidifying the molten composition to form the roller cone, and controlling grain growth using an inoculant as the molten composition solidifies. Articles including components of earth-boring tools are fabricated using such methods. | ||||||
| 167 | HAMMERMILL SYSTEM, HAMMER AND METHOD | US14525739 | 2014-10-28 | US20150115085A1 | 2015-04-30 | ROBERT F. MILLER |
| Various embodiments of a hammermill system, hammer, and methods are disclosed. A hammermill hammer comprises a metal composite comprising a plurality of inserts and a body portion disposed between each of the plurality of inserts. The composition of the plurality of inserts is different than composition of the body portion. The material of the plurality of inserts has a greater abrasion resistance than the material of the body portion and the material of the body portion has a greater impact resistance than the material of the inserts. The hammers produced have improved wear resistance and longer useful life compared to conventional hammermill hammers. | ||||||
| 168 | Single mold milling process | US12180276 | 2008-07-25 | US08915166B2 | 2014-12-23 | Scott Buteaud; Cary Maurstad |
| A bit mold is milled using a turning stage which forms a base mold component and a base gagering component. Next, a blade milling stage is performed in which the base mold component and base gagering component are milled to define integral junkslot formers separated by blade regions. Lastly, a pocket milling stage is performed in which the blade regions and integral junkslot formers of the base mold component are milled to define a plurality of cutter pockets in primary and perhaps secondary rows. Each cutter pocket includes a seat portion and a face portion. The milling of the pocket milling stage provides, at one or more of the cutter pockets, a facet. This facet is provided in an area about the junkslot former associated with the face portion of the cutter pocket, the face portion having, due to the presence of the facet, a surface for matching a cutter core displacement end surface without voids of a size which would require the use of fill material. The facet is also provided on either side of the pocket associated with the seat portion to avoid the need to clay the sides of the displacement for providing top-loading clearances. The milling process at the pocket milling stage further supports definition of relief and erosion resistance features in the mold. | ||||||
| 169 | Methods of forming at least a portion of earth-boring tools, and articles formed by such methods | US13111783 | 2011-05-19 | US08905117B2 | 2014-12-09 | John H. Stevens; Jimmy W. Eason |
| Methods of forming at least a portion of an earth-boring tool include providing at least one insert in a mold cavity, providing particulate matter in the mold cavity, melting a metal and a hard material to form a molten composition, and casting the molten composition. Other methods include coating at least one surface of a mold cavity with a coating material having a composition differing from a composition of the mold, melting a metal and a hard material to form a molten composition, and casting the molten composition. Articles comprising at least a portion of an earth-boring tool include at least one insert and a solidified eutectic or near-eutectic composition including a metal phase and a hard material phase. Other articles include a solidified eutectic or near-eutectic composition including a metal phase, a hard material phase and a coating material in contact with the solidified eutectic or near-eutectic composition. | ||||||
| 170 | METHOD OF CASTING | US14243471 | 2014-04-02 | US20140299287A1 | 2014-10-09 | Thomas John Yaniak; Thomas Majewski |
| A method of casting an article includes positioning a first portion of the article, formed from a first material, in a rotatable mold. Additionally, the method includes, while rotating the mold, pouring a molten second material into the mold over the first portion to form a second portion of the article that is metallurgically bonded to the first portion of the article. | ||||||
| 171 | Composite impactor for impact crusher | US13119684 | 2009-08-26 | US08651407B2 | 2014-02-18 | Guy Berton |
| The present invention discloses a composite impactor for impact crushers, said impactor comprising a ferrous alloy at least partially reinforced with titanium carbide according to a defined geometry, in which said reinforced portion comprises an alternating macro-microstructure of millimetric areas concentrated with micrometric globular particles of titanium carbide separated by millimetric areas essentially free of micrometric globular particles of titanium carbide, said areas concentrated with micrometric globular particles of titanium carbide forming a microstructure in which the micrometric interstices between said globular particles are also filled by said ferrous alloy. | ||||||
| 172 | Composite tooth for working the ground or rock | US13119669 | 2009-08-26 | US08646192B2 | 2014-02-11 | Guy Berton |
| The present invention discloses a composite tooth for working the ground or rocks, said tooth comprising a ferrous alloy at least partially reinforced with titanium carbide according to a defined geometry, in which said reinforced portion comprises an alternating macro-microstructure of millimetric areas concentrated with micrometric globular particles of titanium carbide separated by millimetric areas essentially free of micrometric globular particles of titanium carbide, said areas concentrated with micrometric globular particles of titanium carbide forming a microstructure in which the micrometric interstices between said globular particles are also filled by said ferrous alloy. | ||||||
| 173 | Milling cone for a compression crusher | US13119676 | 2009-08-26 | US08602340B2 | 2013-12-10 | Guy Berton |
| The present invention discloses a composite milling cone for compression crushers, said milling cone comprising a ferrous alloy at least partially reinforced with titanium carbide according to a defined geometry, in which said reinforced portion comprises an alternating macro-microstructure of millimetric areas concentrated with micrometric globular particles of titanium carbide separated by millimetric areas (2) essentially free of micrometric globular particles of titanium carbide, said areas concentrated with micrometric globular particles of titanium carbide forming a microstructure in which the micrometric interstices between said globular particles are also filled by said ferrous alloy. | ||||||
| 174 | Method of composite casting of a one-piece cast tool | US12920905 | 2009-03-05 | US08602083B2 | 2013-12-10 | Christer Svensson; Tomas Nilsson |
| A method of one-piece casting of a tool with a working component of steel and a body of grey iron, and an interconnection zone therebetween is carried out in a single mold which is kept closed and unchanged during the casting. The steel is cast first from beneath and upwards, whereafter a pause is made. The casting of the grey iron is only carried out when the temperature of the steel in the intended interconnection zone has fallen to a temperature corresponding to the liquidus temperature of the steel minus approx. 30° to 150° C. | ||||||
| 175 | Manufacturing Process for Matrix Drill Bits | US13901919 | 2013-05-24 | US20130312927A1 | 2013-11-28 | Jeffrey G. Thomas |
| A process for reducing inclusions during manufacturing of a matrix drill bit comprises placing at least a first layer of a first matrix material in a matrix bit body mold. At least a second layer of a second matrix material is placed in the mold. A binder material is placed in the mold with the binder material disposed proximate the second layer of matrix material and a metal a blank. A graphite lid is placed on the mold. The mold and the materials disposed therein are heated to a selected temperature to cause the binder material to melt and to allow the hot, liquid binder material to infiltrate the second matrix material and the first matrix material, with the second matrix material operable to improve infiltration of the first matrix material by the hot, liquid binder material without using a flux material. | ||||||
| 176 | Mould and a method of composite casting of a one piece cast tool | US12920889 | 2009-03-05 | US08528624B2 | 2013-09-10 | Christer Svensson; Tomas Nilsson |
| A mould for one piece casting of a tool, which has a working component of steel and a body of grey iron has a first mould cavity section for the steel and a second mould cavity section for the grey iron, with an interconnection zone therebetween. A dividing plane between the sections is planar and horizontal and located at the interconnection zone. A duct leads from the first section to an accommodation space for possible surplus of steel. In a method for one piece casting of a tool, which has a working component of steel and a body of grey iron with an interconnection zone therebetween, the steel is cast in a first mould cavity section and the grey iron in a second mould cavity section. A dividing plane between the mould cavity sections is planar and horizontal. An accommodation space for surplus of steel is provided to permit steel to flow from the first mould cavity section at the level of the dividing plane into the accommodation space. | ||||||
| 177 | Methods of forming at least a portion of earth-boring tools | US13111666 | 2011-05-19 | US08490674B2 | 2013-07-23 | John H. Stevens; Jimmy W. Eason |
| Methods of forming at least a portion of an earth-boring tool include providing particulate matter comprising a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity, and adjusting a stoichiometry of at least one hard material phase of the at least a portion of the earth-boring tool. Methods of forming a roller cone of an earth-boring rotary drill bit include forming a molten composition, casting the molten composition within a mold cavity, solidifying the molten composition to form the roller cone, and converting an eta-phase region within the roller cone to at least one of WC and W2C. | ||||||
| 178 | Systems for manufacturing downhole tools and downhole tool parts | US13158361 | 2011-06-10 | US08464814B2 | 2013-06-18 | John H. Stevens; Jimmy W. Eason |
| 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 downhole tool or tool part is fabricated. Mold material is applied to the external periphery of the model. The mold material is permitted to harden to form a mold about the model. The model is eliminated and a composite matrix material is cast within the mold to form a finished downhole tool or tool part. | ||||||
| 179 | EARTH-BORING TOOLS, METHODS OF FORMING EARTH-BORING TOOLS, AND METHODS OF REPAIRING EARTH-BORING TOOLS | US13314960 | 2011-12-08 | US20130146366A1 | 2013-06-13 | Xiaomin Chris Cheng; Eric C. Sullivan; Tu Tien Trinh |
| A method of forming an earth-boring tool includes introducing metal into a die, rotating the die to generate centrifugal forces on the metal, and cooling the metal in the rotating die. A rotary drill bit may include a unitary, centrifugally cast bit body including an integral shank, at least one blade, and at least one cutting element on the blade. A rotary drill bit or a roller cone may include a first centrifugally cast material and a second centrifugally cast material. Another rotary drill bit includes a bit body comprising a maraging steel alloy. A method of forming a rotary drill bit may include disposing cutting elements on a rotary drill bit comprising maraging steel and aging the rotary drill bit to form at least one intermetallic precipitate phase. Methods of repairing a rotary drill bit include annealing and aging at least a portion of a rotary drill bit. | ||||||
| 180 | Compensation grooves to absorb dilatation during infiltration of a matrix drill bit | US12947090 | 2010-11-16 | US08251122B2 | 2012-08-28 | Gilles Gallego; Anthony Salliou; Scott Buteaud; Michael R. Reese |
| A down hole tool casting assembly, a gauge ring, and a method for preparing the gauge ring for use within the assembly. The gauge ring includes a bit diameter mold and one or more junk slot displacements extending inwardly from the interior surface of the bit diameter mold. The junk slot displacement includes a first end, a second end, and a junk slot displacement face extending from the first end to the second end. At least one groove is formed within the interior surface of the gauge ring, which alleviates stresses formed within the casting during the casting process. According to some embodiments, at least one groove is formed within the junk slot displacement face. According to some embodiments, at least one groove is formed within the interior surface of the bit diameter mold. Optionally, a pressure absorbing material is inserted into one or more grooves. | ||||||
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