Patents by Inventor Alexander Simpson

Alexander Simpson 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).

  • Publication number: 20170261023
    Abstract: A one-sided fastener assembly for use in coupling an assembly stack-up includes a sleeve comprising an outer cylindrical surface and an inner tapered surface oriented at a first angle with respect to the outer surface. The inner tapered defines an opening extending through the sleeve. The fastener assembly also includes a core extending along an axis and configured for insertion into the opening. The core includes an outer tapered surface oriented at a second angle with respect to the axis configured for engagement with the sleeve inner tapered surface such that insertion of the core into the sleeve causes radial expansion of the sleeve creating an interference fit with the assembly stack-up to complete installation of the one-sided fastener assembly.
    Type: Application
    Filed: March 10, 2016
    Publication date: September 14, 2017
    Inventors: Blake Alexander Simpson, Mark A. Woods, John E. Inman
  • Patent number: 8690519
    Abstract: The present application provides for a wet gas compressor system. The wet gas compressor system may include a wet gas compressor with an inlet section. A variable cross-section nozzle may be positioned about the inlet section.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: April 8, 2014
    Assignee: General Electric Company
    Inventors: Christian Aalburg, Alexander Simpson, Vittorio Michelassi, Ismail Sezal
  • Patent number: 8408871
    Abstract: A method and an apparatus for measuring an air flow at an airfoil surface are provided, wherein at least one pressure sensor adapted to detect an air flow associated with a rotor blade surface and a pressure transducer which converts the detected air flow into an electrical signal indicating the air flow are provided. The pressure sensor is arranged within the boundary layer of the air flow at the airfoil surface such that the boundary layer profile may be determined from the electrical signal. The air flow sensor is adapted for rotor blades of a wind turbine to assist in adjusting a pitch angle of the rotor blades.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: April 2, 2013
    Assignee: General Electric Company
    Inventors: Stefan Herr, Ryan Michael Leclair, Christopher Winslow, Alexander Simpson, Carlos Haertel, Thierry Maeder
  • Publication number: 20120201660
    Abstract: The present application provides for a wet gas compressor system. The wet gas compressor system may include a wet gas compressor with an inlet section. A variable cross-section nozzle may be positioned about the inlet section.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 9, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Christian Aalburg, Alexander Simpson, Vittorio Michelassi, Ismail Sezal
  • Publication number: 20110209473
    Abstract: A system and method for waste heat recovery in exhaust gas recirculation is disclosed. The system includes an engine having an intake manifold and an exhaust manifold, an exhaust conduit connected to the exhaust manifold, and a turbocharger having a turbine and a compressor, the turbine being connected to the exhaust conduit to receive a portion of the exhaust gas from the exhaust manifold. The system also includes an EGR system connected to the exhaust conduit to receive a portion of the exhaust gas, with the EGR system including an EGR conduit that is connected to the exhaust conduit to receive a portion of the exhaust gas, a heat exchanger connected to the EGR conduit and being configured to extract heat from the exhaust gas, and a waste heat recovery system connected to the heat exchanger and configured to capture the heat extracted by the heat exchanger.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 1, 2011
    Inventors: Jassin Fritz, Georgios Bikas, Gabor Ast, Alexander Simpson, Thomas Johannes Frey, Rodrigo Rodriguez Erdmenger
  • Patent number: 8002524
    Abstract: The present application provides a wind turbine system. The wind turbine system may include a number of blades, a number of wind speed sensors positioned on the blades, a controller in communication with the wind speed sensors, and one or more performance adjustment, mechanisms in communication with the controller. The controller activates the performance adjustment mechanisms in response to the wind speed sensors.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: August 23, 2011
    Assignee: General Electric Company
    Inventors: Eric Eggleston, Christopher Wolfe, Eric John Ruggiero, Alexander Simpson, Rodrigo Rodriguez Erdmenger, Robbert Pannekeet
  • Publication number: 20110094212
    Abstract: A system and method for compressing and expanding air in a compressed air energy storage (CAES) system is disclosed. A CAES system is provided that is alternately operable in a compression mode and an expansion mode and includes therein a motor-generator unit and a drive shaft connected to the motor-generator unit that is configured to transmit rotational power to and from the motor-generator unit. The CAES system also includes at least one reversible compressor-expander unit coupled to the drive shaft and configured to selectively compress and expand air, and an air storage unit connected to the reversible compressor-expander unit and configured to store compressed air received therefrom, with the at least one reversible compressor-expander unit compressing air during the compression mode and expanding air during the expansion mode.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 28, 2011
    Inventors: Gabor Ast, Stephanie Marie-Noelle Hoffmann, Matthew Lehar, Alexander Simpson, Christian Aalburg, Thomas Frey, Matthias Finkenrath, Richard Aumann
  • Publication number: 20100146968
    Abstract: A system, apparatus, and method for exhaust gas recirculation (EGR) is disclosed. The EGR apparatus includes an EGR circuit having an input configured to receive an exhaust gas from an engine exhaust port, an output configured to return the exhaust gas to an intake port of the engine, and an EGR path configured to circulate the exhaust gas between the input and the output. The EGR apparatus also includes an EGR compressor connected to the EGR circuit in the EGR path downstream of the input and EGR compressor configured to compress the exhaust gas for circulation to the output. The EGR apparatus further includes a valve system positioned in the EGR circuit and upstream of the EGR compressor to selectively cut off a flow of the exhaust gas to the EGR compressor and selectively inject ambient air into the EGR path.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 17, 2010
    Inventors: Alexander Simpson, Rodrigo Rodriguez Erdmenger
  • Publication number: 20100146967
    Abstract: A system, apparatus, and method for exhaust gas recirculation (EGR) is disclosed. The EGR apparatus includes an EGR circuit having an input configured to receive an exhaust gas from an engine exhaust port, an output configured to return the exhaust gas to an intake port of the engine, and an EGR path configured to circulate the exhaust gas between the input and the output. The EGR apparatus also includes an expansion turbine connected to the EGR circuit in the EGR path downstream of the input to receive the exhaust gas, the expansion turbine configured to expand the exhaust gas and reduce a pressure thereof. The EGR apparatus further includes an EGR compressor connected to the EGR path downstream of the expansion turbine and decoupled from the expansion turbine, the EGR compressor configured to compress the exhaust gas for circulation to the output.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 17, 2010
    Inventors: Alexander Simpson, Rodrigo Rodriguez Erdmenger
  • Publication number: 20100143118
    Abstract: The present application provides a wind turbine system. The wind turbine system may include a number of blades, a number of wind speed sensors positioned on the blades, a controller in communication with the wind speed sensors, and one or more performance adjustment, mechanisms in communication with the controller. The controller activates the performance adjustment mechanisms in response to the wind speed sensors.
    Type: Application
    Filed: July 10, 2009
    Publication date: June 10, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Eric Eggleston, Christopher Wolfe, Eric John Ruggiero, Alexander Simpson, Rodrigo Rodriguez-Erdmenger, Robbert Pannekeet
  • Publication number: 20100040533
    Abstract: A method and apparatus are described for manufacturing Ebonex® articles such as rods and tiles from titanium oxide precursors. The precursors are held within the interior space of a kiln and heated in a reducing gas. The precursors are held so that the reducing gas is able to fully envelop them. In a preferred embodiment, the precursors are hung from a support within the kiln. The temperature of the kiln is also controlled to limit the initial heating of the kiln and to maintain the kiln within a predetermined range of operating temperatures.
    Type: Application
    Filed: September 26, 2006
    Publication date: February 18, 2010
    Inventors: Alexander Simpson, Philip Carter
  • Publication number: 20090311096
    Abstract: A method and an apparatus for measuring an air flow at an airfoil surface are provided, wherein at least one pressure sensor adapted to detect an air flow associated with a rotor blade surface and a pressure transducer which converts the detected air flow into an electrical signal indicating the air flow are provided. The pressure sensor is arranged within the boundary layer of the air flow at the airfoil surface such that the boundary layer profile may be determined from the electrical signal. The air flow sensor is adapted for rotor blades of a wind turbine to assist in adjusting a pitch angle of the rotor blades.
    Type: Application
    Filed: June 13, 2008
    Publication date: December 17, 2009
    Inventors: Stefan Herr, Ryan Michael Leclair, Christopher Winslow, Alexander Simpson, Carlos Haertel, Thierry Maeder
  • Patent number: 7582127
    Abstract: The invention provides a method of chemically-mechanically polishing a substrate comprising tungsten through use of a composition comprising a tungsten etchant, an inhibitor of tungsten etching, and water, wherein the inhibitor of tungsten polishing is a polymer, copolymer, or polymer blend comprising at least one repeating group comprising at least one nitrogen-containing heterocyclic ring or a tertiary or quaternary nitrogen atom. The invention further provides a chemical-mechanical polishing composition particularly useful in polishing tungsten-containing substrates.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: September 1, 2009
    Assignee: Cabot Microelectronics Corporation
    Inventors: Robert Vacassy, Dinesh N. Khanna, Alexander Simpson
  • Publication number: 20070266641
    Abstract: The invention provides a chemical-mechanical polishing composition particularly useful in polishing tungsten-containing substrates. The composition comprises a tungsten etchant, an inhibitor of tungsten etching, and water, wherein the inhibitor of tungsten polishing is a polymer, copolymer, or polymer blend comprising at least one repeating group comprising at least one nitrogen-containing heterocyclic ring or a tertiary or quaternary nitrogen atom.
    Type: Application
    Filed: July 26, 2007
    Publication date: November 22, 2007
    Inventors: Robert Vacassy, Dinesh Khanna, Alexander Simpson
  • Publication number: 20070214728
    Abstract: The invention provides a method of chemically-mechanically polishing a substrate comprising tungsten through use of a composition comprising a tungsten etchant, an inhibitor of tungsten etching, and water, wherein the inhibitor of tungsten polishing is a polymer, copolymer, or polymer blend comprising at least one repeating group comprising at least one nitrogen-containing heterocyclic ring or a tertiary or quaternary nitrogen atom. The invention further provides a chemical-mechanical polishing composition particularly useful in polishing tungsten-containing substrates.
    Type: Application
    Filed: February 1, 2007
    Publication date: September 20, 2007
    Applicant: Cabot Microelectronics Corporation
    Inventors: Robert Vacassy, Dinesh Khanna, Alexander Simpson
  • Patent number: 7247567
    Abstract: The invention provides a method of chemically-mechanically polishing a substrate comprising tungsten through use of a composition comprising a tungsten etchant, an inhibitor of tungsten etching, and water, wherein the inhibitor of tungsten polishing is a polymer, copolymer, or polymer blend comprising at least one repeating group comprising at least one nitrogen-containing heterocyclic ring or a tertiary or quaternary nitrogen atom. The invention further provides a chemical-mechanical polishing composition particularly useful in polishing tungsten-containing substrates.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: July 24, 2007
    Assignee: Cabot Microelectronics Corporation
    Inventors: Robert Vacassy, Dinesh N. Khanna, Alexander Simpson
  • Publication number: 20050282391
    Abstract: The invention provides a method of chemically-mechanically polishing a substrate comprising tungsten through use of a composition comprising a tungsten etchant, an inhibitor of tungsten etching, and water, wherein the inhibitor of tungsten polishing is a polymer, copolymer, or polymer blend comprising at least one repeating group comprising at least one nitrogen-containing heterocyclic ring or a tertiary or quaternary nitrogen atom. The invention further provides a chemical-mechanical polishing composition particularly useful in polishing tungsten-containing substrates.
    Type: Application
    Filed: June 16, 2004
    Publication date: December 22, 2005
    Applicant: Cabot Microelectronics Corporation
    Inventors: Robert Vacassy, Dinesh Khanna, Alexander Simpson
  • Patent number: 6932674
    Abstract: A method of determining the endpoint of a planarizing process is disclosed. An endpoint detection signal is selectively sampled from at least one predetermined location within a planarizing region defined on a planarizing web. Planarization is stopped when the endpoint criterion based on the endpoint detection signal is detected.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: August 23, 2005
    Assignee: Infineon Technologies Aktientgesellschaft
    Inventors: Peter Lahnor, Olaf Kuehn, Andreas Roemer, Alexander Simpson
  • Publication number: 20050153643
    Abstract: A polyelectrolyte dispensing polishing pad, a process for its production and a method of polishing, e.g., chemical mechanical polishing (CMP), a substrate such as a semiconductor wafer, are provided. The pad is usable for CMP planarization of an oxide or metal layer on the wafer. The pad has a polishing layer of erodible binder material containing uniformly distributed therein both abrasive particles and a water soluble ionizable electrolyte substance such as a polyelectrolyte, such that during polishing the binder material incrementally erodes and the abrasive particles and electrolyte substance is incrementally release into direct contact with the substrate. The electrolyte substance inhibits CMP removal of silicon nitride, e.g., as a stop layer, under an upper oxide or metal layer, such that the upper layer is selectively polished and the CMP stops on the stop layer leaving the latter intact.
    Type: Application
    Filed: November 24, 2004
    Publication date: July 14, 2005
    Inventors: Alexander Simpson, Ronald Schutz
  • Patent number: 6899597
    Abstract: A semiconductive wafer having a layer of conductive material formed thereon is polished. The semiconductor wafer is rotated against an abrasive polishing pad. A solution is applied to the semiconductor wafer and to the abrasive polishing pad. The solution includes an etchant of the conductive material.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: May 31, 2005
    Assignee: Infineon Technologies AG
    Inventors: Peter Wrschka, Alexander Simpson