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).
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Patent number: 11614127Abstract: 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: GrantFiled: December 6, 2019Date of Patent: March 28, 2023Assignee: Goodrich CorporationInventors: Jeffrey Mathis, Raghu Iyer
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Patent number: 11408467Abstract: 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: GrantFiled: May 3, 2019Date of Patent: August 9, 2022Assignee: Goodrich CorporationInventor: Jeffrey Mathis
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Publication number: 20220221007Abstract: 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: ApplicationFiled: March 29, 2022Publication date: July 14, 2022Applicant: Goodrich CorporationInventor: Jeffrey Mathis
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Publication number: 20200347888Abstract: 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: ApplicationFiled: May 3, 2019Publication date: November 5, 2020Inventor: Jeffrey Mathis
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Patent number: 10704607Abstract: 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: GrantFiled: August 22, 2016Date of Patent: July 7, 2020Assignee: Goodrich CorporationInventors: Jerry L. Goeke, Jeffrey Mathis
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Publication number: 20200109747Abstract: 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: ApplicationFiled: December 6, 2019Publication date: April 9, 2020Inventors: Jeffrey Mathis, Raghu Iyer
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Patent number: 10533614Abstract: 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: GrantFiled: July 19, 2016Date of Patent: January 14, 2020Assignee: Goodrich CorporationInventors: Jeffrey Mathis, Raghu Iyer
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Patent number: 10280985Abstract: 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: GrantFiled: April 26, 2016Date of Patent: May 7, 2019Assignee: Goodrich CorporationInventor: Jeffrey Mathis
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Patent number: 10253822Abstract: 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: GrantFiled: November 3, 2016Date of Patent: April 9, 2019Assignee: Goodrich CorporationInventors: Jerry Lee Goeke, Jeffrey Mathis
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Publication number: 20180119747Abstract: 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: ApplicationFiled: November 3, 2016Publication date: May 3, 2018Inventors: Jerry Lee Goeke, Jeffrey Mathis
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Publication number: 20180051753Abstract: 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: ApplicationFiled: August 22, 2016Publication date: February 22, 2018Inventors: Jerry L. Goeke, Jeffrey Mathis
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Publication number: 20180023631Abstract: 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: ApplicationFiled: July 19, 2016Publication date: January 25, 2018Inventors: Jeffrey Mathis, Raghu Iyer
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Publication number: 20170184155Abstract: 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: ApplicationFiled: April 26, 2016Publication date: June 29, 2017Inventor: Jeffrey Mathis
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Patent number: 8425224Abstract: 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: GrantFiled: March 16, 2006Date of Patent: April 23, 2013Assignee: Southwest Research InstituteInventors: Cynthia C. Webb, Jeffrey A. Mathis
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Publication number: 20060246386Abstract: 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: ApplicationFiled: March 16, 2006Publication date: November 2, 2006Inventors: Cynthia Webb, Jeffrey Mathis
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Patent number: 7032376Abstract: 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: GrantFiled: October 14, 2003Date of Patent: April 25, 2006Assignee: Southwest Research InstituteInventors: Cynthia C. Webb, Jeffrey A. Mathis