Patents by Inventor Alysia C. White
Alysia C. White has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20150354284Abstract: A tool including a body defining a pocket, a cutting element in the pocket, at least one projection between an outside surface of the cutting element and an inside surface of the pocket, and a braze material between the cutting element and the pocket fixing the cutting element to the pocket.Type: ApplicationFiled: June 3, 2015Publication date: December 10, 2015Inventors: Anthony Griffo, Alysia C. White, Sameer R. Kachhia, Youhe Zhang
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Publication number: 20150014067Abstract: A method of forming a thermally stable cutting element may include providing a cutting element including a substrate fixed to a polycrystalline diamond cutting table; enclosing the substrate and at least a portion of the polycrystalline diamond cutting table within a protective element to form a partially enclosed cutting element; exerting a compressive squeeze on the cutting element of about 5-25%; and exposing the partially enclosed cutting element to a leaching solution so that at least part of an unenclosed portion of the polycrystalline diamond table is in contact with the leaching solution.Type: ApplicationFiled: July 11, 2014Publication date: January 15, 2015Inventors: Giuseppe Muzzi, Alysia C. White, Anthony Griffo, James Ray Podesta
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Patent number: 7770672Abstract: A drill bit having a bit body having at least one blade thereon, at least one cutter pocket disposed on the at least one blade, at least one cutter disposed in the at least one cutter pocket, hardfacing applied to at least a selected portion of the drill bit is shown and described. The hardfacing includes a first hardfacing layer disposed on the selected portion of the drill bit, a second hardfacing layer disposed on the first hardfacing layer, wherein the first hardfacing layer has a hardness different than a hardness of the second hardfacing layer.Type: GrantFiled: May 15, 2008Date of Patent: August 10, 2010Assignee: Smith International, Inc.Inventors: Kumar T. Kembaiyan, Madapusi K. Keshavan, Alysia C. White, Brian A. White
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Patent number: 7666244Abstract: A hardfacing composition for a drill bit, including a carbide phase comprising from about 50% to about 75% by weight of the hardfacing composition of a combination of 16 to 40 mesh cemented tungsten carbide and 80 to 200 mesh super dense tungsten carbide cobalt particles, wherein about 5% to about 50% by weight of the carbide phase comprises the super dense tungsten carbide cobalt particles, and a binder alloy including about 25% to about 50% by weight of the hardfacing composition.Type: GrantFiled: July 5, 2005Date of Patent: February 23, 2010Assignee: Smith International, Inc.Inventors: Gregory T. Lockwood, Anthony Griffo, Dah-Ben Liang, Alysia C. White
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Publication number: 20090120692Abstract: A drill bit having a bit body having at least one blade thereon, at least one cutter pocket disposed on the at least one blade, at least one cutter disposed in the at least one cutter pocket, hardfacing applied to at least a selected portion of the drill bit is shown and described. The hardfacing includes a first hardfacing layer disposed on the selected portion of the drill bit, a second hardfacing layer disposed on the first hardfacing layer, wherein the first hardfacing layer has a hardness different than a hardness of the second hardfacing layer.Type: ApplicationFiled: May 15, 2008Publication date: May 14, 2009Applicant: SMITH INTERNATIONAL, INC.Inventors: Kumar T. Kembaiyan, Madapusi K. Keshavan, Alysia C. White, Brian A. White
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Publication number: 20080164070Abstract: 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 cutter disposed in the at least one cutter pocket; and a braze material disposed between the at least one cutter and the at least one cutter pocket, wherein the reinforcing overlay comprises carbide particles and at least one binder and has a melting point greater than a melting point of the braze material is disclosed.Type: ApplicationFiled: January 8, 2007Publication date: July 10, 2008Applicant: Smith International, Inc.Inventors: Madapusi K. Keshavan, Kumar T. Kembaiyan, Alysia C. White, Anthony Griffo
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Patent number: 7387178Abstract: Self relieving seals of this invention comprise an elastomeric seal body having a first sealing surface and a second sealing surface for contact with respective drill bit sealing surfaces. The seal includes a pair of external surfaces that each extend along the seal body between the first and second sealing surfaces. The seal includes one or more relief ports that are disposed through the seal body and that have openings through each of the seal body external surfaces. The relief port can be specially configured, e.g., have different diameter sections of constant or variable dimensions, to provide a degree of control over pressure equalization through the seal body when the seal is loaded within the drill bit. The seal may include an element, e.g., solid, tubular, or porous, disposed within the relief port to provide a further desired degree of control over pressure equalization through the seal when the seal is loaded within the drill bit.Type: GrantFiled: April 10, 2007Date of Patent: June 17, 2008Assignee: Smith International, Inc.Inventors: James L. Neville, James L. Larsen, Steven W. Peterson, Manikiran Bandi, Alan Lockstedt, Peter T. Cariveau, Alysia C. White, Anthony Griffo, Michael Siracki
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Patent number: 7373997Abstract: A drill bit having a bit body having at least one blade thereon, at least one cutter pocket disposed on the at least one blade, at least one cutter disposed in the at least one cutter pocket, hardfacing applied to at least a selected portion of the drill bit is shown and described. The hardfacing includes a first hardfacing layer disposed on the selected portion of the drill bit, a second hardfacing layer disposed on the first hardfacing layer, wherein the first hardfacing layer has a hardness different than a hardness of the second hardfacing layer.Type: GrantFiled: February 18, 2005Date of Patent: May 20, 2008Assignee: Smith International, Inc.Inventors: Kumar T. Kembaiyan, Madapusi K. Keshavan, Alysia C. White, Brian A. White
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Patent number: 7267183Abstract: A high-temperature lubricant is shown and described. The lubricant includes a base stock and about 1 to about 20 weight percent zirconium 2-ethylhexanoate. The lubricant may also include about 1 to about 9 weight percent bismuth 2-ethylhexanoate.Type: GrantFiled: May 16, 2005Date of Patent: September 11, 2007Assignee: Smith International, Inc.Inventors: Robert Denton, Alan W. Lockstedt, Alysia C. White
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Patent number: 7229077Abstract: Ordered elastomeric composites comprise an ordered arrangement of a number of first elastomeric phases distributed uniformly within a continuous matrix second elastomeric phase. The second phase can be formed from an elastomeric material that is relatively harder than an elastomeric material that is used to form the first phases. Each first phase can be in the form of a core having a defined length and diameter, and the second phase can be formed from a number of shells that each surround a respective core. In a preferred embodiment, the arrangement of cores and shells are aligned coaxially with one another to provide a cellular structure. Ordered elastomeric composites of this invention can be used to form part of or an entire elastomeric seal, e.g., in the form of an annular ring adapted for use in a rotary cone drill bit.Type: GrantFiled: June 11, 2003Date of Patent: June 12, 2007Assignee: Smith International, Inc.Inventors: Madapusi K. Keshavan, Anthony Griffo, Alysia C. White, Robert Denton, Patricia Heel, Leroy N. Tinkham, Michael A. Siracki
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Patent number: 7201241Abstract: Self relieving seals of this invention comprise an elastomeric seal body having a first sealing surface and a second sealing surface for contact with respective drill bit sealing surfaces. The seal includes a pair of external surfaces that each extend along the seal body between the first and second sealing surfaces. The seal includes one or more relief ports that are disposed through the seal body and that have openings through each of the seal body external surfaces. The relief port can be specially configured, e.g., have different diameter sections of constant or variable dimensions, to provide a degree of control over pressure equalization through the seal body when the seal is loaded within the drill bit. The seal may include an element, e.g., solid, tubular, or porous, disposed within the relief port to provide a further desired degree of control over pressure equalization through the seal when the seal is loaded within the drill bit.Type: GrantFiled: December 19, 2005Date of Patent: April 10, 2007Assignee: Smith International, Inc.Inventors: James L. Neville, James L. Larsen, Steven W. Peterson, Manikiran Bandi, Alan Lockstedt, Peter T. Cariveau, Alysia C. White, Anthony Griffo, Michael Siracki
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Patent number: 6976548Abstract: Self relieving seals of this invention comprise an elastomeric seal body having a first sealing surface and a second sealing surface for contact with respective drill bit sealing surfaces. The seal includes a pair of external surfaces that each extend along the seal body between the first and second sealing surfaces. The seal includes one or more relief ports that are disposed through the seal body and that have openings through each of the seal body external surfaces. The relief port can be specially configured, e.g., have different diameter sections of constant or variable dimensions, to provide a degree of control over pressure equalization through the seal body when the seal is loaded within the drill bit. The seal may include an element, e.g., solid, tubular, or porous, disposed within the relief port to provide a further desired degree of control over pressure equalization through the seal when the seal is loaded within the drill bit.Type: GrantFiled: April 2, 2003Date of Patent: December 20, 2005Assignee: Smith International, Inc.Inventors: James L. Neville, James L. Larsen, Steven W. Peterson, Manikiran Bandi, Alan Lockstedt, Peter T. Cariveau, Alysia C. White, Anthony Griffo, Michael Siracki
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Publication number: 20040251052Abstract: Ordered elastomeric composites comprise an ordered arrangement of a number of first elastomeric phases distributed uniformly within a continuous matrix second elastomeric phase. The second phase can be formed from an elastomeric material that is relatively harder than an elastomeric material that is used to form the first phases. Each first phase can be in the form of a core having a defined length and diameter, and the second phase can be formed from a number of shells that each surround a respective core. In a preferred embodiment, the arrangement of cores and shells are aligned coaxially with one another to provide a cellular structure. Ordered elastomeric composites of this invention can be used to form part of or an entire elastomeric seal, e.g., in the form of an annular ring adapted for use in a rotary cone drill bit.Type: ApplicationFiled: June 11, 2003Publication date: December 16, 2004Applicant: Smith International, Inc.Inventors: Madapusi K. Keshavan, Anthony Griffo, Alysia C. White, Robert Denton, Patricia Heel, Leroy N. Tinkham, Michael A. Siracki
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Publication number: 20040040747Abstract: Self relieving seals of this invention comprise an elastomeric seal body having a first sealing surface and a second sealing surface for contact with respective drill bit sealing surfaces. The seal includes a pair of external surfaces that each extend along the seal body between the first and second sealing surfaces. The seal includes one or more relief ports that are disposed through the seal body and that have openings through each of the seal body external surfaces. The relief port can be specially configured, e.g., have different diameter sections of constant or variable dimensions, to provide a degree of control over pressure equalization through the seal body when the seal is loaded within the drill bit. The seal may include an element, e.g., solid, tubular, or porous, disposed within the relief port to provide a further desired degree of control over pressure equalization through the seal when the seal is loaded within the drill bit.Type: ApplicationFiled: April 2, 2003Publication date: March 4, 2004Applicant: Smith International, Inc.Inventors: James L. Neville, James L. Larsen, Steven W. Peterson, Manikiran Bandi, Alan Lockstedt, Peter T. Cariveau, Alysia C. White, Anthony Griffo, Michael Siracki
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Patent number: 6659206Abstract: A hardfacing composition for a drill bit is disclosed which includes a carbide phase made from about 80% to less than 100% by weight of a combination of sintered carbide pellets and crushed cast carbide and from more than 0% to about 20% by weight of carburized tungsten carbide. The composition includes a binder alloy. A roller cone drill bit includes a bit body and at least one roller cone rotatably mounted to the bit body. The at least one roller cone includes at least one cutting element. The cutting element has on its exterior surface a hardfacing. The hardfacing on the cutting element was formed with a hardfacing composition that includes a binder alloy and a carbide phase, which includes from about 80% to less than 100% by weight of a combination of sintered carbide pellets and crushed cast carbide, and from more than 0% to about 20% by weight of carburized tungsten carbide.Type: GrantFiled: October 29, 2001Date of Patent: December 9, 2003Assignee: Smith International, Inc.Inventors: Dah-ben Liang, Alysia C. White
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Patent number: 6615936Abstract: A method for applying hardfacing to teeth on a drill bit is disclosed. The method includes applying the hardfacing to at least one of the teeth so as to have a thickness selected to correspond to a position about exterior surface of the tooth. In one embodiment, the hardfacing thickness is increased near the crest of the tooth, and is decreased near the root of the tooth on at least one flank of the tooth. In one embodiment, the thickness is selected by controlling the powder flow rate in a plasma transferred arc welding system. In another embodiment an angle subtended by flanks of the tooth is selected to provide increased strength to the tooth, and the hardfacing is applied to the tooth to cause exterior surfaces of the hardfacing corresponding to the flanks to subtend an angle selected to provide increased penetration of the tooth through earth formations while drilling.Type: GrantFiled: April 19, 2000Date of Patent: September 9, 2003Assignee: Smith International, Inc.Inventors: Nephi M. Mourik, J. Albert Sue, Alysia C. White
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Patent number: 6615935Abstract: Rock bits comprising wear and fracture resistant surface of this invention include a steel bit body having at least one leg extending therefrom. A steel cone is rotatably disposed on the leg. The steel cone includes a plurality of steel cutting elements that each projecting outwardly a distance therefrom. At least a portion of the cone comprises a wear resistant surface formed from a wear resistant composite material. The wear resistant composite material is made by the process of combining powders selected from the group consisting of carbides, borides, nitrides, carbonitrides, refractory metals, cermets, Co, Fe, Ni, steel, and combinations thereof, to form a material mixture. The material mixture is applied onto a designated surface of the cone, in one form or another, when the cone is in a pre-existing rigid state. Depending on the particular application, the material mixture can be applied in as a slurry to the designated surface of the cone to form a coating thereon.Type: GrantFiled: May 1, 2001Date of Patent: September 9, 2003Assignee: Smith International, Inc.Inventors: Zhigang Fang, Anthony Griffo, Alysia C. White, Chris Cawthorne
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Patent number: 6607835Abstract: Composite constructions of this invention comprise a first structural phase formed from a hard material selected from the group consisting of cermet materials, polycrystalline diamond, polycrystalline cubic boron nitride, and mixtures thereof, and a second structural phase formed from a material that is relatively softer than that used to form the first structural phase. The material selected to form the second structural phase can be the same or different from that used to form the first structural phase. The second structural phase is positioned into contact with at least a portion of the first structural phase. The composite construction includes repeated structural units that each comprise an ordered microstructure of first and second structural phases.Type: GrantFiled: June 15, 2001Date of Patent: August 19, 2003Assignee: Smith International, Inc.Inventors: Zhigang Fang, Anthony Griffo, Alysia C. White
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Publication number: 20030079565Abstract: A hardfacing composition for a drill bit is disclosed which includes a carbide phase made from about 80% to less than 100% by weight of a combination of sintered carbide pellets and crushed cast carbide and from more than 0% to about 20% by weight of carburized tungsten carbide. The composition includes a binder alloy. A roller cone drill bit includes a bit body and at least one roller cone rotatably mounted to the bit body. The at least one roller cone includes at least one cutting element. The cutting element has on its exterior surface a hardfacing. The hardfacing on the cutting element was formed with a hardfacing composition that includes a binder alloy and a carbide phase, which includes from about 80% to less than 100% by weight of a combination of sintered carbide pellets and crushed cast carbide, and from more than 0% to about 20% by weight of carburized tungsten carbide.Type: ApplicationFiled: October 29, 2001Publication date: May 1, 2003Inventors: Dah-ben Liang, Alysia C. White
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Publication number: 20020162691Abstract: Rock bits comprising wear and fracture resistant surface of this invention include a steel bit body having at least one leg extending therefrom. A steel cone is rotatably disposed on the leg. The steel cone includes a plurality of steel cutting elements that each projecting outwardly a distance therefrom. At least a portion of the cone comprises a wear resistant surface formed from a wear resistant composite material. The wear resistant composite material is made by the process of combining powders selected from the group consisting of carbides, borides, nitrides, carbonitrides, refractory metals, cermets, Co, Fe, Ni, steel, and combinations thereof, to form a material mixture. The material mixture is applied onto a designated surface of the cone, in one form or another, when the cone is in a pre-existing rigid state. Depending on the particular application, the material mixture can be applied in as a slurry to the designated surface of the cone to form a coating thereon.Type: ApplicationFiled: May 1, 2001Publication date: November 7, 2002Inventors: Zhigang Fang, Anthony Griffo, Alysia C. White, Chris Cawthorne