Patents by Inventor Douglas C. Serrurier

Douglas C. Serrurier 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).

  • Patent number: 11898588
    Abstract: A tip assembly includes a tip including a body having a narrow tip portion, a broad attachment portion that defines a concave surface, an interior disposed between the broad attachment portion and the narrow tip portion, and a cavity that leads from the concave surface toward the interior. A retention bolt that is heated includes a tapered region, and a shaft extending from the tapered region, terminating at an externally threaded end. The cavity of the tip is at least partially complimentarily shaped to the tapered region of the retention bolt.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: February 13, 2024
    Assignee: Caterpillar Inc.
    Inventor: Douglas C. Serrurier
  • Patent number: 11879235
    Abstract: A wear member includes a forward working portion that is disposed along its longitudinal axis including a closed end, and a rear attachment portion that is disposed along the longitudinal axis including an open end with an exterior surface, and an interior surface. The interior surface defines an interior counterbore with a major diameter, and a minor diameter. A ratio of the major diameter to the minor diameter ranges from 1.8 to 2.2.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: January 23, 2024
    Assignee: Caterpillar Inc.
    Inventors: Douglas C. Serrurier, Eric T. Sinn, Jason Grant Jura, Corey Michael Wells
  • Patent number: 11873625
    Abstract: A spring loaded retainer includes a lug receiving portion defining a first maximum outside dimension, the lug receiving portion also defining a lug receiving slot that extends partially through the lug receiving portion, forming a first sidewall, a second sidewall, and a catch surface connecting the first sidewall to the second sidewall. A drive portion defines a second maximum outside dimension, and a first flat is disposed on the outside of the lug receiving portion proximate to the first sidewall or the second sidewall.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: January 16, 2024
    Assignee: Caterpillar Inc.
    Inventors: Corey Michael Wells, Jason Grant Jura, Eric T. Sinn, Douglas C. Serrurier
  • Publication number: 20240011259
    Abstract: A retaining mechanism includes a retainer with a skirt that has a surface of revolution with an axis of rotation. The skirt extends 180.0 degrees or less about the axis of rotation, forming a thru-slot. A drive portion extends axially from the skirt.
    Type: Application
    Filed: June 20, 2023
    Publication date: January 11, 2024
    Applicant: Caterpillar Inc.
    Inventors: William Jay Ulrich, IV, Eric T. Sinn, Brandon H. McCaffrey, Corey Michael Wells, Douglas C. Serrurier
  • Publication number: 20240011256
    Abstract: A lock includes a drive portion and a pin receiving portion. The drive portion includes a polygonal aperture, and the pin receiving portion includes a hole with an internal surface of revolution that defines an axis of rotation, a radial direction, a circumferential direction, and a slot extending at least partially through the pin receiving portion into the hole.
    Type: Application
    Filed: June 20, 2023
    Publication date: January 11, 2024
    Applicant: Caterpillar Inc.
    Inventors: William Jay Ulrich, IV, Eric T. Sinn, Brandon H. McCaffrey, Corey Michael Wells, Douglas C. Serrurier
  • Patent number: 11866914
    Abstract: A retainer sleeve includes an at least partially annular body defining an axis of rotation, a radial direction, and a circumferential direction. The body may also have a radially inner annular surface defining a radially inner aperture, and a first anti-rotation feature extending radially inwardly from the radially inner annular surface including a sloping ledge having a locking surface, and an outer peripheral surface defining a notch that is at least partially aligned with the first anti-rotation feature or an array of a plurality of external ribs extending outwardly radially from the outer peripheral surface.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: January 9, 2024
    Assignee: Caterpillar Inc.
    Inventors: Douglas C. Serrurier, Eric T. Sinn, Jason Grant Jura
  • Publication number: 20240003123
    Abstract: An adapter cover includes a front face portion that defines a thru-hole configured to allow a nose portion of an adapter to pass horizontally through the thru-hole past the interior surface and then past the exterior surface, and a top single leg extends horizontally from the front face portion. The thru-hole defines a perimeter with a right side edge, a left side edge, a top edge, an upper right corner and an upper left corner, and further defines a bottom open end.
    Type: Application
    Filed: September 15, 2023
    Publication date: January 4, 2024
    Applicant: Caterpillar Inc.
    Inventors: Eric T. Sinn, Douglas C. Serrurier, Rammagy Yoeu
  • Publication number: 20230407607
    Abstract: A wing shroud has a body including a side portion having a side inner surface, a side abutment surface, a side outer surface, and a side rear surface, a floor portion having a floor upper surface, a floor lower surface, a floor front surface, a floor outer surface, and a floor rear surface, and an attachment recess defined by a plurality of inward surfaces on the side and floor portions. The body also has a leading edge extending between the side inner surface, the side outer surface, the floor front surface, the floor upper surface, and the floor outer surface, and including an upper end, a transition portion, a lower curved portion, and a lower end.
    Type: Application
    Filed: May 24, 2022
    Publication date: December 21, 2023
    Applicant: Caterpillar Inc.
    Inventors: Andrew W. YOUNG, Ezhil Valavan KARUNAKARAN, Eric T. SINN, Douglas C. SERRURIER
  • Publication number: 20230383503
    Abstract: A retainer includes a drive portion defining a drive portion outer diameter, and a lug receiving portion with a skirt defining a lug receiving slot that extends partially through the lug receiving portion, forming a first sidewall, a second sidewall, and a catch surface connecting the first sidewall to the second sidewall. The skirt also defines a skirt outer diameter that is greater than the drive portion outer diameter. Also, the drive portion has a hook tab that extends from the drive portion and that is spaced away from the skirt a minimum distance.
    Type: Application
    Filed: August 2, 2023
    Publication date: November 30, 2023
    Applicant: Caterpillar Inc.
    Inventors: Jason Grant Jura, Eric T. Sinn, Douglas C. Serrurier, Corey Michael Wells
  • Patent number: 11808017
    Abstract: An adapter cover includes a front face portion that defines a thru-hole configured to allow a nose portion of an adapter to pass horizontally through the thru-hole past the interior surface and then past the exterior surface, and a top single leg extends horizontally from the front face portion. The thru-hole defines a perimeter with a right side edge, a left side edge, a top edge, an upper right corner and an upper left corner, and further defines a bottom open end.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: November 7, 2023
    Assignee: Caterpillar Inc.
    Inventors: Eric T. Sinn, Douglas C. Serrurier, Rammagy Yoeu
  • Publication number: 20230304268
    Abstract: A retainer sleeve includes an at least partially annular body defining an axis of rotation, a radial direction, and a circumferential direction. The body may also have a radially inner annular surface defining a radially inner aperture, and a first anti-rotation feature extending radially inwardly from the radially inner annular surface including a sloping ledge having a locking surface that faces at least partially in the circumferential direction and along a direction that is parallel to the axis of rotation, forming an oblique angle with the direction that is parallel to the axis of rotation.
    Type: Application
    Filed: May 31, 2023
    Publication date: September 28, 2023
    Applicant: Caterpillar Inc.
    Inventors: Douglas C. Serrurier, Eric T. Sinn, Jason Grant Jura, Corey Michael Wells
  • Publication number: 20230304267
    Abstract: A retainer sleeve includes an at least partially annular body defining an axis of rotation, a radial direction, and a circumferential direction. The body may also have a radially inner annular surface defining a radially inner aperture, and a first anti-rotation feature extending radially inwardly from the radially inner annular surface including a sloping ledge having a locking surface that faces at least partially in the circumferential direction and along a direction that is parallel to the axis of rotation, forming an oblique angle with the direction that is parallel to the axis of rotation.
    Type: Application
    Filed: May 31, 2023
    Publication date: September 28, 2023
    Applicant: Caterpillar Inc.
    Inventors: Douglas C. Serrurier, Eric T. Sinn, Jason Grant Jura, Corey Michael Wells
  • Patent number: 11761177
    Abstract: A retainer includes a drive portion defining a drive portion outer diameter, and a lug receiving portion with a skirt defining a lug receiving slot that extends partially through the lug receiving portion, forming a first sidewall, a second sidewall, and a catch surface connecting the first sidewall to the second sidewall. The skirt also defines a skirt outer diameter that is greater than the drive portion outer diameter. Also, the drive portion has a hook tab that extends from the drive portion and that is spaced away from the skirt a minimum distance.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: September 19, 2023
    Assignee: Caterpillar Inc.
    Inventors: Jason Grant Jura, Eric T. Sinn, Douglas C. Serrurier, Corey Michael Wells
  • Publication number: 20230257969
    Abstract: An adapter retention plug includes an elongated body defining a right extremity, and a left extremity disposed along a longitudinal axis. The elongated body also includes a right vertical undercut forming void, a left vertical undercut forming void, and a tab extending along the longitudinal axis defining the right extremity.
    Type: Application
    Filed: February 16, 2022
    Publication date: August 17, 2023
    Applicant: Caterpillar Inc.
    Inventors: Eric T. Sinn, Douglas C. Serrurier, Phillip J. Kunz
  • Patent number: 11702820
    Abstract: A retainer sleeve includes an at least partially annular body defining an axis of rotation, a radial direction, and a circumferential direction. The body may also have a radially inner annular surface defining a radially inner aperture, and a first anti-rotation feature extending radially inwardly from the radially inner annular surface including a sloping ledge having a locking surface that faces at least partially in the circumferential direction and along a direction that is parallel to the axis of rotation, forming an oblique angle with the direction that is parallel to the axis of rotation.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: July 18, 2023
    Assignee: Caterpillar Inc.
    Inventors: Douglas C. Serrurier, Eric T. Sinn, Jason Grant Jura, Corey Michael Wells
  • Patent number: 11697922
    Abstract: An adapter includes a first leg, a second leg, and a throat portion that define a slot defining a direction of assembly onto a work implement assembly, a lateral direction that is perpendicular to the direction of assembly, and a vertical direction that is perpendicular to the direction of assembly and the lateral direction. The throat portion further includes a first throat side surface disposed along the lateral direction and a second throat side surface disposed on the opposite side of the throat portion along the lateral direction. The first throat side surface defines a first adapter cover receiving recess.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: July 11, 2023
    Assignee: Caterpillar Inc.
    Inventors: Eric T. Sinn, Douglas C. Serrurier, Rammagy Yoeu
  • Patent number: 11686072
    Abstract: An adapter includes a first leg, a second leg, and a throat portion at least partially define a slot that defines a projection at the closed end of the slot that includes a flat middle portion straddled laterally by a first arcuate portion and a second arcuate portion, defining a lateral middle portion width. A projection protruding distance is measured along the direction of assembly from the closed end of the slot to the flat middle portion. The projection protruding distance ranges from 0.8 to 1.2 multiplied by the lateral middle portion width.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: June 27, 2023
    Assignee: Caterpillar Inc.
    Inventors: Eric T. Sinn, Douglas C. Serrurier, Rammagy Yoeu
  • Patent number: 11686073
    Abstract: A power locking device has a body including a blind bore with an electroactive polymer disposed in the blind bore, and a sliding lock member that is disposed in the blind bore and that contacts the electroactive polymer. A current source is in electrical communication with the electroactive polymer.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: June 27, 2023
    Assignee: Caterpillar Inc.
    Inventor: Douglas C. Serrurier
  • Publication number: 20230061737
    Abstract: A base includes a male portion including a first projection, and a second projection facing in a diametrically opposed manner to the first projection. A stepped bore extends from the first projection to the second projection that has a large diameter portion that is at least partially formed by the first projection.
    Type: Application
    Filed: September 2, 2021
    Publication date: March 2, 2023
    Applicant: Caterpillar Inc.
    Inventors: Douglas C. Serrurier, Eric T. Sinn, Jason Grant Jura, Corey Michael Wells
  • Publication number: 20230064464
    Abstract: A wear member includes a forward working portion that is disposed along its longitudinal axis including a closed end, and a rear attachment portion that is disposed along the longitudinal axis including an open end with an exterior surface, and an interior surface. The interior surface defines an interior counterbore with a major diameter, and a minor diameter. A ratio of the major diameter to the minor diameter ranges from 1.8 to 2.2.
    Type: Application
    Filed: September 2, 2021
    Publication date: March 2, 2023
    Applicant: Caterpillar Inc.
    Inventors: Douglas C. Serrurier, Eric T. Sinn, Jason Grant Jura, Corey Michael Wells