Patents by Inventor Ryan Basson Graham
Ryan Basson Graham 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: 11965382Abstract: An insert for a drill bit includes a base portion. In addition, the insert includes a formation engaging portion extending from the base portion. The formation engaging portion has a longitudinal axis and includes a first end, a second end opposite the first end, a first lateral side extending from the first end to the second end, and a second lateral side extending from the first end to the second end, and an elongate crown extending longitudinally from the first end to the second end and laterally from the first lateral side to the second lateral side. The first lateral side comprises a first curved surface having a first radius of curvature in top view of the insert and the second lateral side includes a second curved surface having a second radius of curvature in top view of the insert. The first radius of curvature of the first curved surface is different than the second radius of curvature of the second curved surface.Type: GrantFiled: November 24, 2021Date of Patent: April 23, 2024Assignee: NATIONAL OILWELL VARCO, L.P.Inventors: Reza Rahmani, Navid Omidvar, Afshin Babaie Aghdam, Ryan Basson Graham
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Patent number: 11788361Abstract: A cutter element for a drill bit includes a base portion having a central axis, a first end, a second end, and a radially outer surface extending axially from the first end to the second end. In addition, the cutter element includes a cutting layer fixably mounted to the first end of the base portion. The cutting layer includes a cutting face distal the base portion and a radially outer surface extending axially from the cutting face to the radially outer surface of the base portion. The cutting face includes a planar central region centered relative to the central axis and disposed in a plane oriented perpendicular to the central axis. Further, the cutting face includes a plurality of circumferentially-spaced cutting regions disposed about the planar central region. Still further, the cutting face includes a plurality of circumferentially-spaced relief regions disposed about the planar central region.Type: GrantFiled: November 17, 2021Date of Patent: October 17, 2023Assignee: NATIONAL OILWELL VARCO, L.P.Inventors: Reza Rahmani, Ryan Basson Graham
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Patent number: 11598153Abstract: A cutter element for a drill bit includes a base portion having a central axis, a first end, and a second end. In addition, the cutter element includes a cutting layer fixably mounted to the first end of the base portion. The cutting layer includes a cutting face distal the base portion. The cutting face includes an elongate raised ridge having a first end at a radially outer surface of the cutting layer and a second end at the radially outer surface of the cutting layer. The raised ridge defines a maximum height of the cutter element measured axially from the second end of the base portion to the cutting face. The cutting face also includes a first planar lateral side surface and a second planar lateral side surface. Each planar lateral side surface extends from the raised ridge to the radially outer surface of the cutting layer.Type: GrantFiled: September 10, 2019Date of Patent: March 7, 2023Assignee: NATIONAL OILWELL VARCO, L.P.Inventors: Ryan Basson Graham, Reza Rahmani, Olivia N. Pacheco
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Publication number: 20220081975Abstract: An insert for a drill bit includes a base portion. In addition, the insert includes a formation engaging portion extending from the base portion. The formation engaging portion has a longitudinal axis and includes a first end, a second end opposite the first end, a first lateral side extending from the first end to the second end, and a second lateral side extending from the first end to the second end, and an elongate crown extending longitudinally from the first end to the second end and laterally from the first lateral side to the second lateral side. The first lateral side comprises a first curved surface having a first radius of curvature in top view of the insert and the second lateral side includes a second curved surface having a second radius of curvature in top view of the insert. The first radius of curvature of the first curved surface is different than the second radius of curvature of the second curved surface.Type: ApplicationFiled: November 24, 2021Publication date: March 17, 2022Applicant: National Oilwell DHT, L.P.Inventors: Reza Rahmani, Navid Omidvar, Afshin Babaie Aghdam, Ryan Basson Graham
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Publication number: 20220074271Abstract: A cutter element for a drill bit includes a base portion having a central axis, a first end, a second end, and a radially outer surface extending axially from the first end to the second end. In addition, the cutter element includes a cutting layer fixably mounted to the first end of the base portion. The cutting layer includes a cutting face distal the base portion and a radially outer surface extending axially from the cutting face to the radially outer surface of the base portion. The cutting face includes a planar central region centered relative to the central axis and disposed in a plane oriented perpendicular to the central axis. Further, the cutting face includes a plurality of circumferentially-spaced cutting regions disposed about the planar central region. Still further, the cutting face includes a plurality of circumferentially-spaced relief regions disposed about the planar central region.Type: ApplicationFiled: November 17, 2021Publication date: March 10, 2022Applicant: National Oilwell DHT, L.P.Inventors: Reza Rahmani, Ryan Basson Graham
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Patent number: 11220869Abstract: An insert for a drill bit includes a base portion having a central axis and a formation engaging portion. The formation engaging portion includes an elongate peaked ridge, a first flanking surface extending from the peaked ridge, and a second flanking surface extending from the peaked ridge. The first flanking surface is defined by a first curve rotated about a first axis and the second flanking surface is defined by a second curve rotated about a second axis. The first axis and the second axis are disposed in a reference plane that bisects the base portion and contains the central axis of the base portion. The first axis is disposed at a first radius measured in the reference plane and the second axis is disposed at a second radius measured in the reference plane. The first radius is different from the second radius.Type: GrantFiled: February 1, 2018Date of Patent: January 11, 2022Assignee: NATIONAL OILWELL DHT, L.P.Inventors: Reza Rahmani, Navid Omidvar, Afshin Babaie Aghdam, Ryan Basson Graham
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Patent number: 11208849Abstract: A cutter element includes a base portion having a central axis, a first end, and a second end. In addition, the cutter element includes a cutting layer fixably mounted to the first end of the base portion. The cutting layer includes a cutting face distal. The cutting face includes a planar central region centered relative to the central axis and disposed in a plane oriented perpendicular to the central axis. The cutting face also includes a plurality of circumferentially-spaced cutting regions disposed about the planar central region. Each cutting region extends from the planar central region to the radially outer surface of the cutting layer. Each cutting region slopes axially toward the base portion moving radially outward from the planar central region to the radially outer surface of the cutting layer. Further, the cutting face includes a plurality of circumferentially-spaced relief regions disposed about the planar central region.Type: GrantFiled: November 4, 2019Date of Patent: December 28, 2021Assignee: NATIONAL OILWELL DHT, L.P.Inventors: Reza Rahmani, Ryan Basson Graham
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Publication number: 20210172258Abstract: A cutter element for a drill bit includes a base portion having a central axis, a first end, and a second end. In addition, the cutter element includes a cutting layer fixably mounted to the first end of the base portion. The cutting layer includes a cutting face distal the base portion. The cutting face includes an elongate raised ridge having a first end at a radially outer surface of the cutting layer and a second end at the radially outer surface of the cutting layer. The raised ridge defines a maximum height of the cutter element measured axially from the second end of the base portion to the cutting face. The cutting face also includes a first planar lateral side surface and a second planar lateral side surface. Each planar lateral side surface extends from the raised ridge to the radially outer surface of the cutting layer.Type: ApplicationFiled: September 10, 2019Publication date: June 10, 2021Applicant: National Oilwell DHT, L.P.Inventors: Ryan Basson Graham, Reza Rahmani, Olivia N. Pacheco
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Publication number: 20210131189Abstract: An insert for a drill bit includes a base portion having a central axis and a formation engaging portion. The formation engaging portion includes an elongate peaked ridge, a first flanking surface extending from the peaked ridge, and a second flanking surface extending from the peaked ridge. The first flanking surface is defined by a first curve rotated about a first axis and the second flanking surface is defined by a second curve rotated about a second axis. The first axis and the second axis are disposed in a reference plane that bisects the base portion and contains the central axis of the base portion. The first axis is disposed at a first radius measured in the reference plane and the second axis is disposed at a second radius measured in the reference plane. The first radius is different from the second radius.Type: ApplicationFiled: February 1, 2018Publication date: May 6, 2021Applicant: National Oilwell DHT, L.P.Inventors: Reza Rahmani, Navid Omidvar, Afshin Babaie Aghdam, Ryan Basson Graham
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Publication number: 20210131190Abstract: A cutter element includes a base portion having a central axis, a first end, and a second end. In addition, the cutter element includes a cutting layer fixably mounted to the first end of the base portion. The cutting layer includes a cutting face distal. The cutting face includes a planar central region centered relative to the central axis and disposed in a plane oriented perpendicular to the central axis. The cutting face also includes a plurality of circumferentially-spaced cutting regions disposed about the planar central region. Each cutting region extends from the planar central region to the radially outer surface of the cutting layer. Each cutting region slopes axially toward the base portion moving radially outward from the planar central region to the radially outer surface of the cutting layer. Further, the cutting face includes a plurality of circumferentially-spaced relief regions disposed about the planar central region.Type: ApplicationFiled: November 4, 2019Publication date: May 6, 2021Inventors: Reza Rahmani, Ryan Basson Graham