Patents by Inventor Jason R. Griffin
Jason R. Griffin 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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Publication number: 20240125257Abstract: A fluid drain system is provided, comprising: a fluid reservoir having at least two sumps including a first sump having a first hole for draining fluid from the fluid reservoir and a second sump having a second hole for draining fluid from the fluid reservoir; a first drain plug having a first end with a first drive feature configured to be operated with a tool for insertion and removal of the first drain plug into and out of the first hole of the fluid reservoir and a second end with a second drive feature; and a second drain plug having a first end with a third drive feature configured to be engaged by the second drive feature of the first drain plug for insertion and removal of the second drain plug into and out of the second hole of the fluid reservoir.Type: ApplicationFiled: September 1, 2023Publication date: April 18, 2024Inventors: Jason R. Griffin, Ajit R. Pawar, Norberto Nunes, Glen R. Alden, Mathias Kemnitzer
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Patent number: 11788445Abstract: A fluid drain system is provided, comprising: a fluid reservoir having at least two sumps including a first sump having a first hole for draining fluid from the fluid reservoir and a second sump having a second hole for draining fluid from the fluid reservoir; a first drain plug having a first end with a first drive feature configured to be operated with a tool for insertion and removal of the first drain plug into and out of the first hole of the fluid reservoir and a second end with a second drive feature; and a second drain plug having a first end with a third drive feature configured to be engaged by the second drive feature of the first drain plug for insertion and removal of the second drain plug into and out of the second hole of the fluid reservoir.Type: GrantFiled: December 12, 2018Date of Patent: October 17, 2023Assignee: Cummins Inc.Inventors: Jason R. Griffin, Ajit R. Pawar, Norberto Nunes, Glen R. Alden, Mathias Kemnitzer
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Publication number: 20220307396Abstract: A system comprises a component manufactured via additive manufacturing. The component includes a first material with a first contraction rate. An insert is disposed in the component and comprises a second material with a second contraction rate that is lower than the first contraction rate. When the component and the insert are exposed to a temperature suitable for sintering, the component contracts around the insert, thereby coupling the insert and the component.Type: ApplicationFiled: March 29, 2021Publication date: September 29, 2022Applicant: CUMMINS INC.Inventors: Glen R. Alden, Jason R. Griffin
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Patent number: 11434790Abstract: A system comprises a component manufactured via additive manufacturing. The component includes a first material with a first contraction rate. An insert is disposed in the component and comprises a second material with a second contraction rate that is lower than the first contraction rate. When the component and the insert are exposed to a temperature suitable for sintering, the component contracts around the insert, thereby coupling the insert and the component.Type: GrantFiled: March 29, 2021Date of Patent: September 6, 2022Assignee: Cummins Inc.Inventors: Glen R. Alden, Jason R. Griffin
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Publication number: 20220010704Abstract: A fluid drain system is provided, comprising: a fluid reservoir having at least two sumps including a first sump having a first hole for draining fluid from the fluid reservoir and a second sump having a second hole for draining fluid from the fluid reservoir; a first drain plug having a first end with a first drive feature configured to be operated with a tool for insertion and removal of the first drain plug into and out of the first hole of the fluid reservoir and a second end with a second drive feature; and a second drain plug having a first end with a third drive feature configured to be engaged by the second drive feature of the first drain plug for insertion and removal of the second drain plug into and out of the second hole of the fluid reservoir.Type: ApplicationFiled: December 12, 2018Publication date: January 13, 2022Applicant: Cummins Inc.Inventors: Jason R. GRIFFIN, Ajit R. PAWAR, Norberto NUNES, Glen R. ALDEN, Mathias KEMNITZER
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Patent number: 11008972Abstract: A system for cooling a cylinder head includes a cylinder head, a cylinder block, and a waste heat recovery system. The cylinder head includes a first water jacket and a second water jacket. The cylinder block is coupled to the cylinder head. The cylinder block includes a third water jacket. The first water jacket is coupled to a first cooling circuit. The second water jacket is coupled to a second cooling circuit. The third water jacket is coupled to a third cooling circuit. The waste heat recovery system is coupled to at least one of the first cooling circuit, the second cooling circuit, and the third cooling circuit.Type: GrantFiled: September 7, 2017Date of Patent: May 18, 2021Assignee: Cummins Inc.Inventors: Michael T. Stanley, Jason R. Griffin, Timothy C. Ernst
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Patent number: 10648374Abstract: A spark-ignited gas engine system comprises a combustion chamber defined by a piston, a head with a spark plug mechanism, and a cylinder having an associated intake valve and an associated exhaust valve, into which a mixture of combustible gas and air is entered via an intake manifold of the engine to drive a crankshaft. The system further comprises at least one turbocharger to compress the mixture. The system further comprises at least one camshaft, driven by the crankshaft via a gear assembly connected to the crankshaft, that comprises at least one cam that actuates the intake valve and the exhaust valve, at least one camphaser, coupled to the crankshaft via the gear assembly, and a controller to adjust a cam angle operation of the intake valve and the exhaust valve by adjusting the camphaser to a desired phase position to meet a target rotational phase of the camshaft.Type: GrantFiled: August 11, 2016Date of Patent: May 12, 2020Assignee: Cummins Inc.Inventors: Philipe F. Saad, Edward J. Lyford-Pike, Milan K. Visaria, Agneya Turlapati, Anamitra Bhattacharyya, Jason R. Griffin, Brendan C. Norton
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Publication number: 20190242327Abstract: A system for cooling a cylinder head includes a cylinder head, a cylinder block, and a waste heat recovery system. The cylinder head includes a first water jacket and a second water jacket. The cylinder block is coupled to the cylinder head. The cylinder block includes a third water jacket. The first water jacket is coupled to a first cooling circuit. The second water jacket is coupled to a second cooling circuit. The third water jacket is coupled to a third cooling circuit. The waste heat recovery system is coupled to at least one of the first cooling circuit, the second cooling circuit, and the third cooling circuit.Type: ApplicationFiled: September 7, 2017Publication date: August 8, 2019Applicant: CUMMINS INC.Inventors: Michael T. Stanley, Jason R. Griffin, Timothy C. Ernst
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Publication number: 20180223702Abstract: A spark-ignited gas engine system comprises a combustion chamber defined by a piston, a head with a spark plug mechanism, and a cylinder having an associated intake valve and an associated exhaust valve, into which a mixture of combustible gas and air is entered via an intake manifold of the engine to drive a crankshaft. The system further comprises at least one turbocharger to compress the mixture. The system further comprises at least one camshaft, driven by the crankshaft via a gear assembly connected to the crankshaft, that comprises at least one cam that actuates the intake valve and the exhaust valve, at least one camphaser, coupled to the crankshaft via the gear assembly, and a controller to adjust a cam angle operation of the intake valve and the exhaust valve by adjusting the camphaser to a desired phase position to meet a target rotational phase of the camshaft.Type: ApplicationFiled: August 11, 2016Publication date: August 9, 2018Applicant: CUMMINS INC.Inventors: Philipe F. Saad, Edward J. Lyford-Pike, Milan K. Visaria, Agneya Turlabati, Anamitra Bjattacharyya, Jason R. Griffin, Brendan C. Norton