Patents by Inventor Jeffrey A. Mathis

Jeffrey A. Mathis 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: 11614127
    Abstract: A method of transmitting torque through a flexible coupling includes driving a first rotatable member with a second rotatable member, applying an axial force component to the a flexible coupling connecting the first rotatable member and the second rotatable member by changing an axial offset between the first rotatable member and the second rotatable member interconnected by the flexible coupling, reducing one or more of the axial force component and cyclic equivalent stress born by a flexible diaphragm body of the flexible coupling by axially shifting the first end of the flexible diaphragm body relative to one of the interconnected rotatable members, and affixing a splined member to a second end of the flexible coupling, wherein the flexible diaphragm body has an inner diameter that is greater than an inner diameter of the splined member.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: March 28, 2023
    Assignee: Goodrich Corporation
    Inventors: Jeffrey Mathis, Raghu Iyer
  • Patent number: 11408467
    Abstract: A flexible coupling assembly for a power transmission system including a first shaft defining an axis, configured for connecting to a first rotating member, the first shaft adjoining and passing through a first flexible diaphragm coupling and lockably connecting to a quill shaft by a locking flange and the quill shaft being configured for connecting to a second rotating member, including a first mating portion for receiving the locking flange of the first shaft within a circumferential opening, wherein the quill shaft is disposed within a primary diaphragm coupling shaft.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: August 9, 2022
    Assignee: Goodrich Corporation
    Inventor: Jeffrey Mathis
  • Publication number: 20220221007
    Abstract: A flexible coupling assembly for a power transmission system including a first shaft defining an axis, configured for connecting to a first rotating member, the first shaft adjoining and passing through a first flexible diaphragm coupling and lockably connecting to a quill shaft by a locking flange and the quill shaft being configured for connecting to a second rotating member, including a first mating portion for receiving the locking flange of the first shaft within a circumferential opening, wherein the quill shaft is disposed within a primary diaphragm coupling shaft.
    Type: Application
    Filed: March 29, 2022
    Publication date: July 14, 2022
    Applicant: Goodrich Corporation
    Inventor: Jeffrey Mathis
  • Publication number: 20200347888
    Abstract: A flexible coupling assembly for a power transmission system including a first shaft defining an axis, configured for connecting to a first rotating member, the first shaft adjoining and passing through a first flexible diaphragm coupling and lockably connecting to a quill shaft by a locking flange and the quill shaft being configured for connecting to a second rotating member, including a first mating portion for receiving the locking flange of the first shaft within a circumferential opening, wherein the quill shaft is disposed within a primary diaphragm coupling shaft.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 5, 2020
    Inventor: Jeffrey Mathis
  • Patent number: 10704607
    Abstract: A flexible coupling arrangement includes an outer first member, an outer second member, and an outer flexible coupling. The outer flexible coupling is arranged to transmit torque between the outer first member and the outer second member while allowing at least one of angular misalignment and axial misalignment between the outer first member and the outer second member. The flexible coupling also includes an inner first member, an inner second member, and inner flexible coupling. The inner flexible coupling arranged to transmit torque between the inner first member and the inner second member while allowing at least one of angular misalignment and axial misalignment between the inner first member and the inner second member. The inner flexible coupling is positioned radially inward of the outer flexible coupling.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: July 7, 2020
    Assignee: Goodrich Corporation
    Inventors: Jerry L. Goeke, Jeffrey Mathis
  • Publication number: 20200109747
    Abstract: A flexible coupling includes a flexible diaphragm body having a first end and a second end. A member is fixed to the first end of the flexible diaphragm body. A splined member is fixed to the second end of the flexible diaphragm body. The splined member is configured to shift relative to a rotatable member rotatably fixed thereto in response to axial displacement of rotatable members interconnected by the flexible coupling. The ratio of inner diameter to the outer diameter is selected to allow for packaging the flexible coupling in a confined space.
    Type: Application
    Filed: December 6, 2019
    Publication date: April 9, 2020
    Inventors: Jeffrey Mathis, Raghu Iyer
  • Patent number: 10533614
    Abstract: A flexible coupling includes a flexible diaphragm body having a first end and a second end. A member is fixed to the first end of the flexible diaphragm body. A splined member is fixed to the second end of the flexible diaphragm body. The splined member is configured to shift relative to a rotatable member rotatably fixed thereto in response to axial displacement of rotatable members interconnected by the flexible coupling. The ratio of inner diameter to the outer diameter is selected to allow for packaging the flexible coupling in a confined space.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: January 14, 2020
    Assignee: Goodrich Corporation
    Inventors: Jeffrey Mathis, Raghu Iyer
  • Patent number: 10280985
    Abstract: A flexible coupling includes an input body, an output body offset from the input body, and a flexible lattice body. The flexible lattice body includes a flex beam member coupling the input body to the output body. The flex beam member has a rounded cross-sectional area with a centrally disposed minimum cross-sectional area to reduce peak stress in the flex beam member while transferring torque and accommodating misalignment between the input body and the output body. The flexible coupling is jointless, simplifying fabrication, and has a free-form geometry, reducing weight.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: May 7, 2019
    Assignee: Goodrich Corporation
    Inventor: Jeffrey Mathis
  • Patent number: 10253822
    Abstract: A flexible coupling includes a flexure, a first drive member defining an axis and connected to the flexure, and a second drive member. The second drive member defines an axis and is connected to the flexure on a side of the flexure opposite the first drive member. An angular stop is fixed within the first drive member, extends through a portion of the second drive member, and is arranged to limit angular misalignment of the first drive member axis relative to the second drive member axis while transmitting torque between the first and second drive members.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: April 9, 2019
    Assignee: Goodrich Corporation
    Inventors: Jerry Lee Goeke, Jeffrey Mathis
  • Publication number: 20180119747
    Abstract: A flexible coupling includes a flexure, a first drive member defining an axis and connected to the flexure, and a second drive member. The second drive member defines an axis and is connected to the flexure on a side of the flexure opposite the first drive member. An angular stop is fixed within the first drive member, extends through a portion of the second drive member, and is arranged to limit angular misalignment of the first drive member axis relative to the second drive member axis while transmitting torque between the first and second drive members.
    Type: Application
    Filed: November 3, 2016
    Publication date: May 3, 2018
    Inventors: Jerry Lee Goeke, Jeffrey Mathis
  • Publication number: 20180051753
    Abstract: A flexible coupling arrangement includes an outer first member, an outer second member, and an outer flexible coupling. The outer flexible coupling is arranged to transmit torque between the outer first member and the outer second member while allowing at least one of angular misalignment and axial misalignment between the outer first member and the outer second member. The flexible coupling also includes an inner first member, an inner second member, and inner flexible coupling. The inner flexible coupling arranged to transmit torque between the inner first member and the inner second member while allowing at least one of angular misalignment and axial misalignment between the inner first member and the inner second member. The inner flexible coupling is positioned radially inward of the outer flexible coupling.
    Type: Application
    Filed: August 22, 2016
    Publication date: February 22, 2018
    Inventors: Jerry L. Goeke, Jeffrey Mathis
  • Publication number: 20180023631
    Abstract: A flexible coupling includes a flexible diaphragm body having a first end and a second end. A member is fixed to the first end of the flexible diaphragm body. A splined member is fixed to the second end of the flexible diaphragm body. The splined member is configured to shift relative to a rotatable member rotatably fixed thereto in response to axial displacement of rotatable members interconnected by the flexible coupling. The ratio of inner diameter to the outer diameter is selected to allow for packaging the flexible coupling in a confined space.
    Type: Application
    Filed: July 19, 2016
    Publication date: January 25, 2018
    Inventors: Jeffrey Mathis, Raghu Iyer
  • Publication number: 20170184155
    Abstract: A flexible coupling includes an input body, an output body offset from the input body, and a flexible lattice body. The flexible lattice body includes a flex beam member coupling the input body to the output body. The flex beam member has a rounded cross-sectional area with a centrally disposed minimum cross-sectional area to reduce peak stress in the flex beam member while transferring torque and accommodating misalignment between the input body and the output body. The flexible coupling is jointless, simplifying fabrication, and has a free-form geometry, reducing weight.
    Type: Application
    Filed: April 26, 2016
    Publication date: June 29, 2017
    Inventor: Jeffrey Mathis
  • Patent number: 8425224
    Abstract: A burner-based exhaust gas generation system, having a blower for providing air into the system. The blower is controlled to compensate for variations in mass air flow into the system.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: April 23, 2013
    Assignee: Southwest Research Institute
    Inventors: Cynthia C. Webb, Jeffrey A. Mathis
  • Publication number: 20060246386
    Abstract: A burner-based exhaust gas generation system, having a blower for providing air into the system. The blower is controlled to compensate for variations in mass air flow into the system.
    Type: Application
    Filed: March 16, 2006
    Publication date: November 2, 2006
    Inventors: Cynthia Webb, Jeffrey Mathis
  • Patent number: 7032376
    Abstract: A burner for use in the emissions system of a lean burn internal combustion engine. The burner has a special burner head that enhances atomization of the burner fuel. Its combustion chamber is designed to be submersed in the engine exhaust line so that engine exhaust flows over the outer surface of the combustion chamber, thereby providing efficient heat transfer.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: April 25, 2006
    Assignee: Southwest Research Institute
    Inventors: Cynthia C. Webb, Jeffrey A. Mathis