Patents by Inventor Stephen Duffy

Stephen Duffy 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).

  • Publication number: 20240100296
    Abstract: A package for a medical device such as an intermittent catheter has a case and a cap connected by threads. The case includes a hollow tube which is closed at one end and open at the other. A shoulder is formed near one end of the case. Above the shoulder is a cylindrical ferrule that includes external threads. The cap has internal threads selectably engageable with the threads on the ferrule to form a liquid-tight seal between the cap and case when the cap is installed on the case.
    Type: Application
    Filed: December 5, 2023
    Publication date: March 28, 2024
    Inventors: Daniel E. O'Brien, Vincent Naughton, Martin McMenamin, Joseph N. Hanley, David A. Knauz, Martin P. Creaven, Stephen Collum, Jeanne E. Lee, Siobhan Duffy, Marine Veronique Germaine Richard, Eugene Canavan, Daniel A. March
  • Patent number: 11931529
    Abstract: The present invention provides a steerable medical or surgical device, in particular a steerable catheter having one or more actuators which may be integrated into a catheter without the need for welding the actuator to the catheter, the device comprising a main shaft having a proximal end and a distal end, and at least one braided actuator coupled to the main shaft at or adjacent the distal end.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: March 19, 2024
    Assignee: Aran Biomedical Teoranta
    Inventors: Dean King, Stephen Duffy, Paul Flaherty
  • Patent number: 11920409
    Abstract: A cutting element includes a substrate and a cutting table secure to the substrate. The cutting table includes a first surface, a cutting surface, a first transition surface, and a second transition surface. The cutting surface at least substantially surrounds an outer boundary of the first surface and is angled relative to a longitudinal centerline of the cutting table. The first and second transition surfaces are between the cutting surface and an outer lateral edge of the cutting table. The first and second transition surfaces are oriented at a first angle and a second different angle, respectively, relative to the longitudinal centerline of the cutting table. An earth-boring tool and method of forming an earth-boring tool are also described.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: March 5, 2024
    Assignee: Baker Hughes Oilfield Operations LLC
    Inventors: Steven Craig Russell, Gregory L. Ricks, Stephen Duffy
  • Publication number: 20240011357
    Abstract: A cutting element includes a substrate and a cutting table secure to the substrate. The cutting table includes a first surface, a cutting surface, a first transition surface, and a second transition surface. The cutting surface at least substantially surrounds an outer boundary of the first surface and is angled relative to a longitudinal centerline of the cutting table. The first and second transition surfaces are between the cutting surface and an outer lateral edge of the cutting table. The first and second transition surfaces are oriented at a first angle and a second different angle, respectively, relative to the longitudinal centerline of the cutting table. An earth-boring tool and method of forming an earth-boring tool are also described.
    Type: Application
    Filed: July 5, 2022
    Publication date: January 11, 2024
    Inventors: Steven Craig Russell, Gregory L. Ricks, Stephen Duffy
  • Patent number: 11801551
    Abstract: In some embodiments, the present disclosure includes a method of forming a body of an earth-boring downhole tool. A mold is formed that has at least one interior surface defining a mold cavity within the mold. The mold cavity has a shape corresponding to a shape of the body of the earth-boring downhole tool to be formed therein. At least one insert is formed that includes particles of hard-phase material and a binder material using an additive manufacturing process. The at least one insert is positioned within the mold cavity. Additional particles of hard-phase material are provided within the mold cavity, and the additional particles of hard-phase material are infiltrated with molten metal, thus sintering and/or infiltrating the at least one insert to form the body of the earth-boring downhole tool. The resulting body of the earth-boring downhole tool includes the sintered and/or infiltrated at least one insert.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: October 31, 2023
    Assignee: Baker Hughes Holding LLC
    Inventors: Stephen Duffy, Michael T. Savage, James Andy Oxford
  • Patent number: 11719050
    Abstract: Cutting elements for earth-boring tools may include a rotationally leading end positioned and configured to engage with, and remove, a material of an earth formation. A transition region may extend from proximate to a periphery of the cutting element radially inward and axially toward the rotationally leading end. The transition region may include first faceted surfaces, each first faceted surface extending at a first angle relative to a central geometric axis of the cutting element. The transition region may also include second faceted surfaces, each second faceted surface extending at a second, different angle relative to the central geometric axis of the cutting element. The first faceted surfaces and the second faceted surfaces may intersect one another at edges around a periphery of the transition region.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: August 8, 2023
    Assignee: Baker Hughes Oilfield Operations LLC
    Inventors: Steven Craig Russell, Stephen Duffy
  • Publication number: 20230203892
    Abstract: A cutting element includes a substrate and a volume of polycrystalline diamond (PDC) on the substrate. The PDC volume has a front cutting face, a lateral side surface, and a cutting edge between the front cutting face and the lateral side surface. The cutting edge has a cutting apex and extends between a first side flat surface and a second side flat surface. The side flat surfaces are disposed on opposing sides of the cutting apex. The cutting edge further includes a first chamfer surface and a second chamfer surface, which are located adjacent to one another and oriented at a first angle relative to one another at the cutting apex. The cutting edge includes one of: an arcuate edge having a radius of curvature; and a linear edge having discrete linear edges adjacent one another and separated by a second angle.
    Type: Application
    Filed: December 29, 2021
    Publication date: June 29, 2023
    Inventors: Timothy C. Webb, Zachary Borders, Stephen Duffy
  • Patent number: 11585157
    Abstract: A tool for drilling a borehole through a formation. The tool comprises a body, blades having rotationally leading surfaces extending from the tool body, cutting elements secured at least partially within cutting element pockets, and linear or rounded transition surfaces between the cutting element pockets and the rotationally leading surface of the blades. The rounded transition surfaces have a radius of curvature between about 3 and 150 millimeters.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: February 21, 2023
    Assignee: Baker Hughes Oilfield Operations LLC
    Inventors: Stephen Duffy, Scott Mayer
  • Patent number: 11542755
    Abstract: An earth-boring tool includes a body having a plurality of blades. Each blade of the plurality of blades extends axially and radially relative to a center longitudinal axis of the body. The earth-boring tool further includes a plurality of cutting elements secured within the plurality of blades and at least one protrusion trailing at least one cutting element of the plurality of cutting elements in a direction of intended rotation of the earth-boring tool and extending along a lateral side of a blade of the plurality of blades in which the at least one cutting element is secured. The earth-boring tool may further include a pocket extending into the at least one blade from a rotationally leading face of the at least one blade in at least a shoulder region of the at least one blade.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: January 3, 2023
    Assignee: Baker Hughes Oilfield Operations LLC
    Inventors: Stephen Duffy, Scott E. Mayer, Steven Craig Russell
  • Publication number: 20220403704
    Abstract: Cutting elements for earth-boring tools may include a rotationally leading end positioned and configured to engage with, and remove, a material of an earth formation. A transition region may extend from proximate to a periphery of the cutting element radially inward and axially toward the rotationally leading end. The transition region may include first faceted surfaces, each first faceted surface extending at a first angle relative to a central geometric axis of the cutting element. The transition region may also include second faceted surfaces, each second faceted surface extending at a second, different angle relative to the central geometric axis of the cutting element. The first faceted surfaces and the second faceted surfaces may intersect one another at edges around a periphery of the transition region.
    Type: Application
    Filed: June 16, 2021
    Publication date: December 22, 2022
    Inventors: Steven Craig Russell, Stephen Duffy
  • Publication number: 20220251905
    Abstract: A cutting element for downhole drilling and related earth-boring tool for downhole drilling. The cutting element may include a substrate and a polycrystalline diamond material affixed to the substrate at an interface. The polycrystalline diamond material may include a raised cutting surface having at least two cutting edges, and first transition surfaces between the at least two cutting edges of the raised cutting surface and a side surface of the cutting element. The first transition surfaces may include multiple planar surfaces.
    Type: Application
    Filed: February 4, 2022
    Publication date: August 11, 2022
    Inventors: Stephen Duffy, Nicholas J. Lyons, Michael L. Doster
  • Patent number: 11364535
    Abstract: Methods for forming fixed-cutter earth-boring drill bits include retrieving a forged steel drill bit body from an inventory of substantially identical forged steel drill bit bodies including fixed blades and junk slots between the fixed blades. Cutter pockets are formed in the blades. Nozzle holes are formed in the drill bit body to provide fluid communication from an interior of the forged steel drill bit body to the junk slots. Additional methods include forging first and second steel drill bit bodies substantially identical in shape and configuration, forming first cutter pockets in the first steel drill bit body in a first configuration, and forming second cutter pockets in the second steel drill bit body in a second, different configuration.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: June 21, 2022
    Assignee: Baker Hughes Holdings LLC
    Inventors: James Andy Oxford, Richard Wayne Borge, Stephen Duffy
  • Publication number: 20210331387
    Abstract: A method of manufacturing an earth boring tool body including the following steps: providing a mold, the mold comprising a mold cavity defining an interior surface corresponding to an exterior shape of a tool body and a plurality of blades. Forming at least one barrier sleeve insert and disposing it adjacent the interior surface defining the mold cavity; disposing a first powder in the gap between the insert and the interior surface, disposing a second powder in the mold cavity; disposing an infiltrant material adjacent the powders; and heating the mold, thereby infiltrating the infiltrant material into the powders to form the tool body. The disclosure also includes a mold for manufacturing an earth boring tool, the mold comprising a mold cavity defining interior surfaces corresponding to an exterior shape of the tool body and the plurality of blades. Barrier sleeve inserts and/or containment sleeve inserts may be disposed adjacent interior surfaces the mold cavity.
    Type: Application
    Filed: April 28, 2020
    Publication date: October 28, 2021
    Inventors: Stephen Duffy, Brian Steven Wieneke, Juan Miguel Bilen
  • Publication number: 20210293093
    Abstract: A tool for drilling a borehole through a formation. The tool comprises a body, blades having rotationally leading surfaces extending from the tool body, cutting elements secured at least partially within cutting element pockets, and linear or rounded transition surfaces between the cutting element pockets and the rotationally leading surface of the blades. The rounded transition surfaces have a radius of curvature between about 3 and 150 millimeters.
    Type: Application
    Filed: March 18, 2020
    Publication date: September 23, 2021
    Inventors: Stephen Duffy, Scott Mayer
  • Patent number: 10954721
    Abstract: An earth-boring tool includes a body, at least one blade extending axially from the body, at least one cutting element mounted at a leading face of the at least one blade and at least one hybrid ovoid mounted at an axial end of the at least one blade and rotationally trailing the at least one cutting element. The at least one hybrid ovoid includes a cylindrical base portion, a domed upper portion extending from a top of the cylindrical base portion, and an at least substantially planar cutting surface formed in at least the domed upper portion and defining a cutting edge extending angularly through an angle of at least 180°, the at least substantially planar cutting surface is configured for a shear-type cutting action, oriented substantially in the direction of intended bit rotation, and exhibits a lesser aggressiveness than the aggressiveness of the at least one cutting element.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: March 23, 2021
    Assignee: Baker Hughes Holdings LLC
    Inventors: Steven Craig Russell, Stephen Duffy
  • Publication number: 20210001089
    Abstract: The present invention provides a steerable medical or surgical device, in particular a steerable catheter having one or more actuators which may be integrated into a catheter without the need for welding the actuator to the catheter, the device comprising a main shaft having a proximal end and a distal end, and at least one braided actuator coupled to the main shaft at or adjacent the distal end.
    Type: Application
    Filed: March 25, 2019
    Publication date: January 7, 2021
    Inventors: Dean King, Stephen Duffy, Paul Flaherty
  • Patent number: 10884754
    Abstract: Embodiments include load-balancing a plurality of simultaneous threads of a processor. An example method includes computing a minimum group count for a thread from the plurality of threads. The minimum group count indicates a minimum number of groups of instructions to be assigned to the thread. The method further includes computing a maximum allowed group count for the thread. The maximum allowed group count indicates a maximum number of groups of instructions to be assigned to the thread. The method further includes issuing one or more groups of instructions for execution by the thread based on the minimum group count and the maximum allowed group count for the thread.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: January 5, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Gregory W. Alexander, Stephen Duffy, David S. Hutton, Christian Jacobi, Anthony Saporito, Somin Song
  • Publication number: 20200230693
    Abstract: Methods for forming fixed-cutter earth-boring drill bits include retrieving a forged steel drill bit body from an inventory of substantially identical forged steel drill bit bodies including fixed blades and junk slots between the fixed blades. Cutter pockets are formed in the blades. Nozzle holes are formed in the drill bit body to provide fluid communication from an interior of the forged steel drill bit body to the junk slots. Additional methods include forging first and second steel drill bit bodies substantially identical in shape and configuration, forming first cutter pockets in the first steel drill bit body in a first configuration, and forming second cutter pockets in the second steel drill bit body in a second, different configuration.
    Type: Application
    Filed: April 6, 2020
    Publication date: July 23, 2020
    Inventors: James Andy Oxford, Richard Wayne Borge, Stephen Duffy
  • Patent number: 10710148
    Abstract: Methods for forming fixed-cutter earth-boring drill bits include retrieving a forged steel drill bit body from an inventory of substantially identical forged steel drill bit bodies including fixed blades and junk slots between the fixed blades. Cutter pockets are formed in the blades. Nozzle holes are formed in the drill bit body to provide fluid communication from an interior of the forged steel drill bit body to the junk slots. Additional methods include forging first and second steel drill bit bodies substantially identical in shape and configuration, forming first cutter pockets in the first steel drill bit body in a first configuration, and forming second cutter pockets in the second steel drill bit body in a second, different configuration.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: July 14, 2020
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: James Andy Oxford, Richard Wayne Borge, Jr., Stephen Duffy
  • Publication number: 20200087990
    Abstract: An earth-boring tool includes a body having a plurality of blades. Each blade of the plurality of blades extends axially and radially relative to a center longitudinal axis of the body. The earth-boring tool further includes a plurality of cutting elements secured within the plurality of blades and at least one protrusion trailing at least one cutting element of the plurality of cutting elements in a direction of intended rotation of the earth-boring tool and extending along a lateral side of a blade of the plurality of blades in which the at least one cutting element is secured. The earth-boring tool may further include a pocket extending into the at least one blade from a rotationally leading face of the at least one blade in at least a shoulder region of the at least one blade.
    Type: Application
    Filed: September 9, 2019
    Publication date: March 19, 2020
    Inventors: Stephen Duffy, Scott E. Mayer, Steven Craig Russell