Patents by Inventor Marvin Windsor Amundsen
Marvin Windsor Amundsen 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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Patent number: 9708858Abstract: A repaired polycrystalline diamond cutter and method for fabricating the same. The cutter includes a damaged substrate that includes at least one void therein, a polycrystalline diamond table coupled to the damaged substrate, and a build-up compound disposed within the voids formed about the damaged substrate. The damaged substrate and the build-up compound collectively form a full circumference. The method includes obtaining a damaged cutter that includes a polycrystalline diamond table coupled to a damaged substrate having at least one void formed therein, bonding a build-up compound within the at least one void and forming a processed PDC cutter, and removing a portion of the build-up compound from the processed PDC cutter and forming the repaired cutter.Type: GrantFiled: June 21, 2013Date of Patent: July 18, 2017Assignee: VAREL INTERNATIONAL IND., L.P.Inventors: William W. King, Gary M. Thigpen, Federico Bellin, Marvin Windsor Amundsen, Charles Daniel Johnson
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Patent number: 9481057Abstract: A method for hardfacing a drill bit includes applying a hardfacing material to a matrix metal forming the substrate of the drill bit. The hardfacing material is applied using a plasma arc welding process. A metallurgical bond is formed between the matrix metal and the hardfacing material. The matrix metal may include tungsten carbide and a braze filler metal.Type: GrantFiled: December 16, 2013Date of Patent: November 1, 2016Assignee: VAREL INTERNATIONAL, IND., L.P.Inventors: Charles Daniel Johnson, Marvin Windsor Amundsen
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Patent number: 9375827Abstract: A repaired polycrystalline diamond cutter and method for fabricating the same. The cutter includes a damaged substrate that includes at least one void therein, a polycrystalline diamond table coupled to the damaged substrate, and a paste compound disposed within the voids formed about the damaged substrate. The damaged substrate and the paste compound collectively form a full circumference. The method includes obtaining a damaged cutter that includes a polycrystalline diamond table coupled to a damaged substrate having at least one void formed therein, applying a paste compound within the at least one void, melting the paste compound via induction heating, bonding the paste compound to the substrate and forming a processed PDC cutter, and grinding at least a portion of the paste compound from the processed PDC cutter to form the repaired cutter.Type: GrantFiled: December 23, 2013Date of Patent: June 28, 2016Assignee: Varel International Ind., L.P.Inventors: Marvin Windsor Amundsen, Charles Daniel Johnson
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Patent number: 9359824Abstract: An apparatus and method for manufacturing a downhole tool that reduces failures occurring along a bondline between a cemented matrix coupled around a blank. The cemented matrix material is formed from a tungsten carbide powder, a shoulder powder, and a binder material, wherein at least one of the tungsten carbide powder or the shoulder powder is absent of any free tungsten. The blank, which optionally may be coated, is substantially cylindrically shaped and defines a channel extending from a top portion and through a bottom portion of the blank. The absence of free tungsten from at least one of the tungsten carbide powder or the shoulder powder reduces the reaction with iron from the blank, thereby allowing the control and reduction of intermetallic compounds thickness within the bondline.Type: GrantFiled: January 23, 2014Date of Patent: June 7, 2016Assignee: VAREL EUROPE S.A.S.Inventors: Gary M. Thigpen, Federico Bellin, Marvin Windsor Amundsen, Olivier Ther, Alfazazi Dourfaye, Bruno Cuillier De Maindreville, Williams Gomez
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Patent number: 9289864Abstract: A method for forming pockets of a drill bit includes inserting a displacement plug in a cutter pocket defined by a substrate of a drill bit. A hardfacing material is applied to the substrate and the displacement plug using a plasma arc welding torch. The heat from the plasma arc welding torch reduces an oxide layer on the outer surface of the displacement plug, and the molten hardfacing material flows over the displacement plug and wets against the displacement plug. The displacement plug is then removed to reveal a final cutter pocket configured to receive a cutter compact. The cutter compact is secured to the final cutter pocket by brazing.Type: GrantFiled: February 13, 2013Date of Patent: March 22, 2016Assignee: Varel International, Ind., L.P.Inventors: Charles Daniel Johnson, Marvin Windsor Amundsen
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Publication number: 20150259985Abstract: A short matrix drill bit is disclosed along with methods of manufacturing the same. The Short drill matrix bit includes a combination shank/blank bonded to a matrix. The combination shank/blank includes a blank portion and a shank portion, which are formed as a unitary component. The combination shank and blank may also include an outer layer formed along at least a portion of the combination shank/blank. In some instances, the outer layer is nickel plating, or some other suitable material, which facilitates wetting of the binder material used to form the matrix.Type: ApplicationFiled: March 11, 2015Publication date: September 17, 2015Applicant: VAREL INTERNATIONAL IND., L.P.Inventors: Gary Michael Thigpen, Federico Bellin, Michel de Reynal, Jr., Marvin Windsor Amundsen, Charles Daniel Johnson
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Publication number: 20150240566Abstract: An apparatus and method for manufacturing a downhole tool. The cemented matrix material is formed from a metal powder, a shoulder powder, and a binder material, wherein the metal powder and/or the shoulder powder includes at least one of stainless steel powder, nickel powder, cobalt powder, iron powder, or powders of other suitable metals or alloys, or a combination of such mentioned powders.Type: ApplicationFiled: February 13, 2015Publication date: August 27, 2015Applicant: VAREL INTERNATIONAL IND., L.P.Inventors: Marvin Windsor Amundsen, Federico Bellin, Gary M. Thigpen, Charles Daniel Johnson
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Publication number: 20140291033Abstract: A downhole tool and method for manufacturing such downhole tool. The downhole tool includes a bit body having a blank and a matrix bonded to and surrounding the blank, a shank having a threaded connection at one end, and a butt joint formed within a gap formed between the blank and the shank and coupling the blank to the shank. The blank includes a first planar surface while the shank includes a second planar surface opposite the one end. The butt joint is formed between the first and second planar surfaces when positioned adjacent to one another, wherein the first planar surface is positioned external to the matrix.Type: ApplicationFiled: March 19, 2014Publication date: October 2, 2014Applicant: VAREL INTERNATIONAL IND., L.P.Inventors: Marvin Windsor Amundsen, Charles Daniel Johnson
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Publication number: 20140158436Abstract: A repaired polycrystalline diamond cutter and method for fabricating the same. The cutter includes a damaged substrate that includes at least one void therein, a polycrystalline diamond table coupled to the damaged substrate, and a paste compound disposed within the voids formed about the damaged substrate. The damaged substrate and the paste compound collectively form a full circumference. The method includes obtaining a damaged cutter that includes a polycrystalline diamond table coupled to a damaged substrate having at least one void formed therein, applying a paste compound within the at least one void, melting the paste compound via induction heating, bonding the paste compound to the substrate and forming a processed PDC cutter, and grinding at least a portion of the paste compound from the processed PDC cutter to form the repaired cutter.Type: ApplicationFiled: December 23, 2013Publication date: June 12, 2014Applicant: VAREL INTERNATIONAL IND., L.P.Inventors: William W. King, Gary M. Thigpen, Federico Bellin, Marvin Windsor Amundsen, Charles Daniel Johnson
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Publication number: 20140131115Abstract: An apparatus and method for manufacturing a downhole tool that reduces failures occurring along a bondline between a cemented matrix coupled around a blank. The cemented matrix material is formed from a tungsten carbide powder, a shoulder powder, and a binder material, wherein at least one of the tungsten carbide powder or the shoulder powder is absent of any free tungsten. The blank, which optionally may be coated, is substantially cylindrically shaped and defines a channel extending from a top portion and through a bottom portion of the blank. The absence of free tungsten from at least one of the tungsten carbide powder or the shoulder powder reduces the reaction with iron from the blank, thereby allowing the control and reduction of intermetallic compounds thickness within the bondline.Type: ApplicationFiled: January 23, 2014Publication date: May 15, 2014Applicant: VAREL INTERNATIONAL IND., L.P.Inventors: Gary M. Thigpen, Federico Bellin, Marvin Windsor Amundsen, Olivier Ther, Alfazazi Dourfaye, Bruno Cuillier De Maindreville, Williams Gomez
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Publication number: 20140102011Abstract: A method for hardfacing a drill bit includes applying a hardfacing material to a matrix metal forming the substrate of the drill bit. The hardfacing material is applied using a plasma arc welding process. A metallurgical bond is formed between the matrix metal and the hardfacing material. The matrix metal may include tungsten carbide and a braze filler metal.Type: ApplicationFiled: December 16, 2013Publication date: April 17, 2014Applicant: VAREL INTERNATIONAL IND., L.P.Inventors: Charles Daniel Johnson, Marvin Windsor Amundsen
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Publication number: 20130341102Abstract: A repaired polycrystalline diamond cutter and method for fabricating the same. The cutter includes a damaged substrate that includes at least one void therein, a polycrystalline diamond table coupled to the damaged substrate, and a build-up compound disposed within the voids formed about the damaged substrate. The damaged substrate and the build-up compound collectively form a full circumference. The method includes obtaining a damaged cutter that includes a polycrystalline diamond table coupled to a damaged substrate having at least one void formed therein, bonding a build-up compound within the at least one void and forming a processed PDC cutter, and removing a portion of the build-up compound from the processed PDC cutter and forming the repaired cutter.Type: ApplicationFiled: June 21, 2013Publication date: December 26, 2013Applicant: Varel International Ind., L.P.Inventors: William W. King, Gary M. Thigpen, Federico Bellin, Marvin Windsor Amundsen, Charles Daniel Johnson