Patents by Inventor Jeffrey B. Lund
Jeffrey B. Lund 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: 9909366Abstract: A cutting element assembly for use on a rotary drill bit for forming a borehole in a subterranean formation. A cutting element assembly includes a cutting element having a substrate. The cutting element assembly additionally includes a superabrasive material bonded to the substrate. The substrate extends from an end surface to a back surface. A base member is also coupled to the back surface of the substrate. Additionally, a recess is defined in the base member and a structural element is coupled to the base member. The cutting element assembly also includes a biasing element configured to selectively bias the structural element.Type: GrantFiled: June 30, 2015Date of Patent: March 6, 2018Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Timothy N. Sexton, David P. Miess, Jeffrey B. Lund
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Patent number: 9745801Abstract: A rotary drill bit is disclosed. The rotary drill bit may include a bit body, a cutting pocket defined in the bit body, and a cutting element rotatably coupled to the bit body. The cutting element may be positioned at least partially within the cutting pocket. The rotary drill bit may also include a rotation-inducing member adjacent to the cutting element for inducing rotation of the cutting element relative to the cutting pocket. The rotation-inducing member may include a resilient member or a vibrational member. The rotary drill bit may also include protrusions extending from an interior of the cutting pocket adjacent to an outer diameter of the cutting element. A method of drilling a formation is also disclosed.Type: GrantFiled: May 8, 2015Date of Patent: August 29, 2017Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Jeffrey B. Lund, Jair J. Gonzalez
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Patent number: 9637979Abstract: Rotary drag bits comprise a body comprising a face at a leading end of the body. An abrasive-impregnated cutting structure is located at the face of the body. The abrasive-impregnated cutting structure comprises abrasive particles dispersed within a matrix material. The abrasive-impregnated cutting structure exhibits an anisotropic wear resistance. The wear resistance varies at least substantially continuously within the abrasive-impregnated cutting structure.Type: GrantFiled: February 5, 2014Date of Patent: May 2, 2017Assignee: Baker Hughes IncorporatedInventors: Van J. Brackin, Jeffrey B. Lund, Danny E. Scott, Marcus R. Skeem, Matthew R. Isbell
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Patent number: 9567808Abstract: Cutting elements for earth-boring tools may generate a shear lip at a wear scar thereon during cutting. A diamond table may exhibit a relatively high wear resistance, and an edge of the diamond table may be chamfered, the combination of which may result in the formation of a shear lip. Cutting elements may comprise multi-layer diamond tables that result in the formation of a shear lip during cutting. Earth-boring tools include such cutting elements. Methods of forming cutting elements may include selectively designing and configuring the cutting elements to form a shear lip. Methods of cutting a formation using an earth-boring tool include cutting the formation with a cutting element on the tool, and generating a shear lip at a wear scar on the cutting element. The cutting element may be configured such that the shear lip comprises diamond material of the cutting element.Type: GrantFiled: July 24, 2014Date of Patent: February 14, 2017Assignees: Baker Hughes Incorporated, Element Six LtdInventors: Danny E. Scott, Marcus R. Skeem, Jeffrey B. Lund, John H. Liversage, Moosa Mahomed Adia
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Patent number: 9279294Abstract: A rotary drill bit is disclosed. The rotary drill bit may include a bit body, a cutting pocket defined in the bit body, and a cutting element rotatably coupled to the bit body. The cutting element may be positioned at least partially within the cutting pocket. The rotary drill bit may also include a rotation-inducing member adjacent to the cutting element for inducing rotation of the cutting element relative to the cutting pocket. The rotation-inducing member may include a resilient member or a vibrational member. The rotary drill bit may also include protrusions extending from an interior of the cutting pocket adjacent to an outer diameter of the cutting element. A method of drilling a formation is also disclosed.Type: GrantFiled: February 3, 2015Date of Patent: March 8, 2016Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Jeffrey B. Lund, Jair J. Gonzalez
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Patent number: 9091132Abstract: A cutting element assembly for use on a rotary drill bit for forming a borehole in a subterranean formation. A cutting element assembly includes a cutting element having a substrate. The cutting element assembly additionally includes a superabrasive material bonded to the substrate. The substrate extends from an end surface to a back surface. A base member is also coupled to the back surface of the substrate. Additionally, a recess is defined in the base member and a structural element is coupled to the base member. The cutting element assembly also includes a biasing element configured to selectively bias the structural element.Type: GrantFiled: August 13, 2013Date of Patent: July 28, 2015Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Timothy N. Sexton, David P. Miess, Jeffrey B. Lund
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Patent number: 8973684Abstract: A rotary drill bit is disclosed. The rotary drill bit may include a bit body, a cutting pocket defined in the bit body, and a cutting element rotatably coupled to the bit body. The cutting element may be positioned at least partially within the cutting pocket. The rotary drill bit may also include a rotation-inducing member adjacent to the cutting element for inducing rotation of the cutting element relative to the cutting pocket. The rotation-inducing member may include a resilient member or a vibrational member. The rotary drill bit may also include protrusions extending from an interior of the cutting pocket adjacent to an outer diameter of the cutting element. A method of drilling a formation is also disclosed.Type: GrantFiled: May 23, 2014Date of Patent: March 10, 2015Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Jeffrey B. Lund, Jair J. Gonzalez
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Publication number: 20140332274Abstract: Cutting elements for earth-boring tools may generate a shear lip at a wear scar thereon during cutting. A diamond table may exhibit a relatively high wear resistance, and an edge of the diamond table may be chamfered, the combination of which may result in the formation of a shear lip. Cutting elements may comprise multi-layer diamond tables that result in the formation of a shear lip during cutting. Earth-boring tools include such cutting elements. Methods of forming cutting elements may include selectively designing and configuring the cutting elements to form a shear lip. Methods of cutting a formation using an earth-boring tool include cutting the formation with a cutting element on the tool, and generating a shear lip at a wear scar on the cutting element. The cutting element may be configured such that the shear lip comprises diamond material of the cutting element.Type: ApplicationFiled: July 24, 2014Publication date: November 13, 2014Inventors: Danny E. Scott, Marcus R. Skeem, Jeffrey B. Lund, John H. Liversage, Moosa Mahomed Adia
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Patent number: 8800692Abstract: Cutting elements for earth-boring tools may generate a shear lip at a wear scar thereon during cutting. A diamond table may exhibit a relatively high wear resistance, and an edge of the diamond table may be chamfered, the combination of which may result in the formation of a shear lip. Cutting elements may comprise multi-layer diamond tables that result in the formation of a shear lip during cutting. Earth-boring tools include such cutting elements. Methods of forming cutting elements may include selectively designing and configuring the cutting elements to form a shear lip. Methods of cutting a formation using an earth-boring tool include cutting the formation with a cutting element on the tool, and generating a shear lip at a wear scar on the cutting element. The cutting element may be configured such that the shear lip comprises diamond material of the cutting element.Type: GrantFiled: October 1, 2010Date of Patent: August 12, 2014Assignees: Baker Hughes Incorporated, Element Six LtdInventors: Danny E. Scott, Marcus R. Skeem, Jeffrey B. Lund, John H. Liversage, Moosa Mahomed Adia
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Patent number: 8763727Abstract: A rotary drill bit is disclosed. The rotary drill bit may include a bit body, a cutting pocket defined in the bit body, and a cutting element rotatably coupled to the bit body. The cutting element may be positioned at least partially within the cutting pocket. The rotary drill bit may also include a rotation-inducing member adjacent to the cutting element for inducing rotation of the cutting element relative to the cutting pocket. The rotation-inducing member may include a resilient member or a vibrational member. The rotary drill bit may also include protrusions extending from an interior of the cutting pocket adjacent to an outer diameter of the cutting element. A method of drilling a formation is also disclosed.Type: GrantFiled: July 2, 2013Date of Patent: July 1, 2014Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Jeffrey B. Lund, Jair J. Gonzalez
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Publication number: 20140151132Abstract: Rotary drag bits comprise a body comprising a face at a leading end of the body. An abrasive-impregnated cutting structure is located at the face of the body. The abrasive-impregnated cutting structure comprises abrasive particles dispersed within a matrix material. The abrasive-impregnated cutting structure exhibits an anisotropic wear resistance. The wear resistance varies at least substantially continuously within the abrasive-impregnated cutting structure.Type: ApplicationFiled: February 5, 2014Publication date: June 5, 2014Applicant: Baker Hughes IncorporatedInventors: Van J. Brackin, Jeffrey B. Lund, Danny E. Scott, Marcus R. Skeem, Matthew R. Isbell
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Patent number: 8662207Abstract: Rotary drag bits comprise a body comprising a face at a leading end of the body. An abrasive-impregnated cutting structure is located at the face of the bit body. The abrasive-impregnated cutting structure comprises abrasive particles dispersed within a matrix material. The abrasive-impregnated cutting structure exhibits an anisotropic wear resistance. The wear resistance varies at least substantially continuously within the abrasive-impregnated cutting structure.Type: GrantFiled: December 18, 2012Date of Patent: March 4, 2014Assignee: Baker Hughes IncorporatedInventors: Van J. Brackin, Jeffrey B. Lund, Danny E. Scott, Marcus R. Skeem, Matthew R. Isbell
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Patent number: 8528670Abstract: A cutting element assembly for use on a rotary drill bit for forming a borehole in a subterranean formation. A cutting element assembly includes a cutting element having a substrate. The cutting element assembly additionally includes a superabrasive material bonded to the substrate. The substrate extends from an end surface to a back surface. A base member is also coupled to the back surface of the substrate. Additionally, a recess is defined in the base member and a structural element is coupled to the base member. The cutting element assembly also includes a biasing element configured to selectively bias the structural element.Type: GrantFiled: April 7, 2011Date of Patent: September 10, 2013Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Timothy N. Sexton, David P. Miess, Jeffrey B. Lund
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Patent number: 8499859Abstract: A rotary drill bit is disclosed. The rotary drill bit may include a bit body, a cutting pocket defined in the bit body, and a cutting element rotatably coupled to the bit body. The cutting element may be positioned at least partially within the cutting pocket. The rotary drill bit may also include a rotation-inducing member adjacent to the cutting element for inducing rotation of the cutting element relative to the cutting pocket. The rotation-inducing member may include a resilient member or a vibrational member. The rotary drill bit may also include protrusions extending from an interior of the cutting pocket adjacent to an outer diameter of the cutting element. A method of drilling a formation is also disclosed.Type: GrantFiled: October 4, 2012Date of Patent: August 6, 2013Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Jeffrey B. Lund, Jair J. Gonzalez
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Patent number: 8333814Abstract: An abrasive-impregnated cutting structure for use in drilling a subterranean formation is disclosed. The abrasive-impregnated cutting structure may comprise a plurality of abrasive particles dispersed within a substantially continuous matrix, wherein the abrasive-impregnated cutting structure exhibits an anisotropic wear resistance. One or more of the amount, average size, composition, properties, shape, quality, strength, and concentration of the abrasive particles may vary within the abrasive-impregnated cutting structure. Anisotropic wear resistance may relate to a selected direction, such as, for example, one or more of an expected direction of engagement of the abrasive-impregnated cutting structure with the subterranean formation and an anticipated wear direction. Anisotropic wear resistance of an abrasive-impregnated cutting structure may be configured for forming or retaining a formation-engaging leading edge thereof.Type: GrantFiled: March 3, 2009Date of Patent: December 18, 2012Assignee: Baker Hughes IncorporatedInventors: Van J. Brackin, Jeffrey B. Lund, Danny E. Scott, Marcus R. Skeem, Matthew R. Isbell
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Patent number: 7954380Abstract: A method for conducting nondestructive internal inspection of a rotary drill bit used for drilling subterranean formations comprises communicating ultrasonic waves into a drill bit and detecting ultrasonic waves that are reflected by at least a portion of the drill bit. In some embodiments, the waves may be directed into the drill bit from within a longitudinal bore thereof. Reflected waves also may be detected from within the bore. The methods may be used to develop threshold acceptance criteria for classifying drill bits as acceptable or unacceptable to prevent catastrophic failures of drill bits during use. Systems and apparatuses are disclosed for conducting nondestructive ultrasonic inspection of a drill bit used for drilling subterranean formations. The systems and apparatuses may comprise an ultrasonic probe configured for insertion within an internal longitudinal bore of a drill bit. Drill bits are disclosed that are configured to facilitate nondestructive ultrasonic inspection thereof.Type: GrantFiled: September 3, 2009Date of Patent: June 7, 2011Assignee: Baker Hughes IncorporatedInventors: Jeffrey B. Lund, Nicholas J. Lyons, Eric C. Sullivan, Terry D. Watts
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Patent number: 7942218Abstract: A cutting element assembly for use on a rotary drill bit for forming a borehole in a subterranean formation. A cutting element assembly includes a cutting element having a substrate. The cutting element assembly additionally includes a superabrasive material bonded to the substrate. The substrate extends from an end surface to a back surface. A base member is also coupled to the back surface of the substrate. Additionally, a recess is defined in the base member and a structural element is coupled to the base member. The cutting element assembly also includes a biasing element configured to selectively bias the structural element.Type: GrantFiled: June 6, 2008Date of Patent: May 17, 2011Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Timothy N. Sexton, David P. Miess, Jeffrey B. Lund
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Publication number: 20110088950Abstract: Cutting elements for earth-boring tools may generate a shear lip at a wear scar thereon during cutting. A diamond table may exhibit a relatively high wear resistance, and an edge of the diamond table may be chamfered, the combination of which may result in the formation of a shear lip. Cutting elements may comprise multi-layer diamond tables that result in the formation of a shear lip during cutting. Earth-boring tools include such cutting elements. Methods of forming cutting elements may include selectively designing and configuring the cutting elements to form a shear lip. Methods of cutting a formation using an earth-boring tool include cutting the formation with a cutting element on the tool, and generating a shear lip at a wear scar on the cutting element. The cutting element may be configured such that the shear lip comprises diamond material of the cutting element.Type: ApplicationFiled: October 1, 2010Publication date: April 21, 2011Applicants: BAKER HUGHES INCORPORATED, ELEMENT SIX (PRODUCTION) (PTY) LTD.Inventors: Danny E. Scott, Marcus R. Skeem, Jeffrey B. Lund, John H. Liversage, Moosa Mahomed Adia
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Patent number: 7900703Abstract: A reaming tool includes a tubular body having a nose portion with a concave center. A plurality of blades defining junk slots therebetween extend axially behind the nose portion and taper outwardly from the exterior of the tubular body. Rotationally leading edges of the blades carry a plurality of cutting elements from the axially leading ends. Selected surfaces and edges of the blades bear tungsten carbide, which may comprise crushed tungsten carbide. The shell of the nose is configured to ensure drillout from the centerline thereof toward the side wall of the tubular body. A method of drilling out a reaming tool is also disclosed.Type: GrantFiled: November 23, 2009Date of Patent: March 8, 2011Assignee: Baker Hughes IncorporatedInventors: Lester I. Clark, John C. Thomas, Jeffrey B. Lund, Eric E. McClain
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Publication number: 20100065282Abstract: A reaming tool includes a tubular body having a nose portion with a concave center. A plurality of blades defining junk slots therebetween extend axially behind the nose and taper outwardly from the exterior of the tubular body. Rotationally leading edges of the blades carry a plurality of cutting elements from the axially leading ends. Selected surfaces and edges of the blades bear tungsten carbide, which may comprise crushed tungsten carbide. The shell of the nose is configured to ensure drillout from the centerline thereof toward the side wall of the tubular body. A method of drilling out a reaming tool is also disclosed.Type: ApplicationFiled: November 23, 2009Publication date: March 18, 2010Applicant: BAKER HUGHES INCORPORATEDInventors: Lester I. Clark, John C. Thomas, Jeffrey B. Lund, Eric E. McClain