Patents by Inventor David L. Moore
David L. Moore 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: 8479701Abstract: An engine includes a cylinder head at least partially defining a valve seat pocket. A valve seat is located proximate to the cylinder head to at least partially define the valve seat pocket. A pocket filler is located between the valve seat and the pocket insert such that the pocket filler occupies a substantial portion of the valve seat pocket. A pocket insert is attached to the cylinder head proximate to the valve seat pocket, such that the pocket insert lines at least a portion of the valve seat pocket.Type: GrantFiled: January 11, 2010Date of Patent: July 9, 2013Assignee: GM Global Technology Operations LLCInventors: Guangling Song, Blair E. Carlson, Dale A. Gerard, Ping-Ho Tsai, Johnnie M. Williams, Pui-Kei Yuen, David L. Moore
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Patent number: 8127735Abstract: An engine assembly may include an engine block defining a cylinder bore, a cylinder head fixed to the engine block, and a valve seat insert. The cylinder head may include an intake port, defining an inlet in fluid communication with an air source and an outlet in fluid communication with the cylinder bore. The valve seat may be defined at the outlet of the intake port and may include a stepped region. The stepped region may define a seating surface extending radially outward from the intake port. The seating surface may include a series of protrusions circumferentially spaced from one another around the outlet and forming a series of recesses therebetween. The valve seat insert may be located within the stepped region and may include a first axial end surface abutting the protrusions on the seating surface.Type: GrantFiled: March 9, 2009Date of Patent: March 6, 2012Inventors: Edward P. Becker, David L Moore
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Publication number: 20110100316Abstract: A cylinder head assembly for an internal combustion engine and its method of manufacture is disclosed. The cylinder head assembly includes a cylinder head having a combustion chamber and a port opening into the combustion chamber. An insert pocket is circumferentially disposed about the port and is configured to receive a valve seat therein and to define a seam therebetween. A seal, comprising displaced cylinder head material disposed across the seam, seals the seam against the ingress of contaminants.Type: ApplicationFiled: November 5, 2009Publication date: May 5, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: David L. Moore, Pui-Kei Yuen
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Publication number: 20100313842Abstract: An engine includes a cylinder head at least partially defining a valve seat pocket. A valve seat is located proximate to the cylinder head to at lest partially define the valve seat pocket. A pocket filler is located between the valve seat and the pocket insert such that the pocket filler occupies a substantial portion of the valve seat pocket. A pocket insert is attached to the cylinder head proximate to the valve seat pocket, such that the pocket insert lines at least a portion of the valve seat pocket.Type: ApplicationFiled: January 11, 2010Publication date: December 16, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Guangling Song, Blair E. Carlson, Dale A. Gerard, Ping-Ho Tsai, Johnnie M. Williams, Pui-Kei Yuen, David L. Moore
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Publication number: 20100269778Abstract: A cylinder head for an internal combustion engine comprises a combustion chamber/face, a port opening into the combustion chamber/face and an insert pocket circumferentially disposed about the port and configured to receive a valve seat insert therein. A carbon layer is disposed between the insert pocket and the valve seat insert and is configured to prevent corrosion of the insert pocket caused by exposure to alcohol based fuels such as ethanol.Type: ApplicationFiled: April 22, 2009Publication date: October 28, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Pui-Kei Yuen, David L. Moore
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Publication number: 20100224160Abstract: An engine assembly may include an engine block defining a cylinder bore, a cylinder head fixed to the engine block, and a valve seat insert. The cylinder head may include an intake port, defining an inlet in fluid communication with an air source and an outlet in fluid communication with the cylinder bore. The valve seat may be defined at the outlet of the intake port and may include a stepped region. The stepped region may define a seating surface extending radially outward from the intake port. The seating surface may include a series of protrusions circumferentially spaced from one another around the outlet and forming a series of recesses therebetween. The valve seat insert may be located within the stepped region and may include a first axial end surface abutting the protrusions on the seating surface.Type: ApplicationFiled: March 9, 2009Publication date: September 9, 2010Applicant: GM GLOBAL TECNOLOGY OPERATIONS, INC.Inventors: Edward P. Becker, David L. Moore
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Patent number: 4977140Abstract: A dairy cow injected with a sustained release formulation comprising bovine somatotropin, a wax, and an oil produces more milk for 28 days.Type: GrantFiled: March 23, 1989Date of Patent: December 11, 1990Assignee: Eli Lilly and CompanyInventors: Thomas H. Ferguson, Roger G. Harrison, David L. Moore
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Patent number: 4329707Abstract: A glass disc-shaped thyristor is disclosed. The thyristor comprises a body of semiconductive material having a first emitter region, a first base region, a second base region and a second emitter region therein. A cathode electrode and a gate electrode are affixed to one major surface, and an anode electrode is affixed to the second major surface of the body of semiconductor material. The cathode electrode is disc-shaped and is concentrically positioned with respect to the annular-shaped gate electrode. A ring-shaped glass member is affixed to a first major surface of the body of semiconductive material and to the edges of the cathode and base electrodes to form a seal protecting a PN junction at the interface of the first emitter and base regions. An anode electrode is affixed to the second major surface of the body of semiconductive material.Type: GrantFiled: July 16, 1980Date of Patent: May 11, 1982Assignee: Westinghouse Electric Corp.Inventors: David L. Moore, John A. Ostop, Joseph E. Johnson
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Patent number: 4161746Abstract: A glass sealed semiconductor diode is disclosed. The diode includes a fusion which comprises a body of semiconductor material having a PN junction therein and metal electrodes affixed to opposed major surfaces of the semiconductor body. The fusion is encircled by an annular-shaped glass member with an inner surface of the annular-shaped glass member fused to an edge surface of the fusion to form a protective layer over the PN junction. An annular metallic member encircles the annular glass member with an inner surface thereof fused to an outer surface of the annular glass member.Type: GrantFiled: March 28, 1978Date of Patent: July 17, 1979Assignee: Westinghouse Electric Corp.Inventors: Joseph E. Johnson, John A. Ostop, David L. Moore
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Patent number: 3961546Abstract: A digital automatic control for a change-speed transmission receives digitally coded electrical signals from a gear selector and automatically shifts transmission gears, up to the maximum speed selected, to maintain transmission speed within a range which will assure the most efficient use of available engine power.Type: GrantFiled: September 17, 1974Date of Patent: June 8, 1976Assignee: Allis-Chalmers CorporationInventors: Thomas P. Gilmore, David L. Moore
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Patent number: 3935866Abstract: A grain loss monitor for a combine harvester derives a grain loss rate signal in accordance with the number of grains impinging on a transducer and a ground speed signal proportional to the ground speed of the combine and divides the former by the latter to derive an analog of grain loss per unit area which is independent of time.Type: GrantFiled: December 23, 1974Date of Patent: February 3, 1976Assignee: Allis-Chalmers CorporationInventors: Edwin M. Northup, David L. Moore, J. Lyle Shaver