Patents Represented by Attorney Penny A. Clarke
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Patent number: 7912328Abstract: A circuit board assembly is configured to attenuate and prevent electro-magnetic fields from interfering with operation below a desired cutoff frequency, of electro-magnetic interference (EMI) susceptible circuit board electronics disposed within a shielded enclosure, while allowing signals to be transmitted between the EMI susceptible circuit board electronics at frequencies below the desired cutoff frequency, and circuits or devices external to the shielded enclosure.Type: GrantFiled: November 26, 2008Date of Patent: March 22, 2011Assignee: General Electric CompanyInventors: Glen Peter Koste, Michael Joseph Schutten, Arthur Vorwerk Radun
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Patent number: 7909507Abstract: A thermal inspection method is provided for a component comprising at least one complex internal passage arrangement defining at least one opening. The thermal inspection method includes flowing a fluid through the at least one complex internal passage arrangement. The fluid has an initial temperature that differs from an initial temperature of the component. The thermal inspection method further includes measuring a thermal response of the component to the fluid flow and analyzing the thermal response to determine a number of heat transfer coefficients {hlmn} corresponding to respective locations {l,m,n} within the complex internal passage arrangement. The thermal inspection method further includes using the heat transfer coefficients {hlmn} to determine at least one of (a) a flow rate through respective ones of the at least one opening, and (b) a cross-sectional area for respective ones of the at least one opening.Type: GrantFiled: April 11, 2008Date of Patent: March 22, 2011Assignee: General Electric CompanyInventors: Ronald Scott Bunker, Nirm Velumylum Nirmalan
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Patent number: 7904282Abstract: A method for multi-objective fault accommodation using predictive modeling is disclosed. The method includes using a simulated machine that simulates a faulted actual machine, and using a simulated controller that simulates an actual controller. A multi-objective optimization process is performed, based on specified control settings for the simulated controller and specified operational scenarios for the simulated machine controlled by the simulated controller, to generate a Pareto frontier-based solution space relating performance of the simulated machine to settings of the simulated controller, including adjustment to the operational scenarios to represent a fault condition of the simulated machine.Type: GrantFiled: March 22, 2007Date of Patent: March 8, 2011Assignee: General Electric CompanyInventors: Kai Frank Goebel, Rajesh Venkat Subbu, Randal Thomas Rausch, Dean Kimball Frederick
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Patent number: 7890274Abstract: A method for measuring a flow rate through a cooling hole of a film cooled part includes the steps of 1) measuring a transient thermal response of an internal surface temperature corresponding solely to an inside portion of a cooling hole for a film cooled part resulting from a flow of fluid through the part, the fluid having an initial temperature that is different from an initial temperature of the film cooled part, 2) mathematically characterizing the transient thermal response, and 3) determining the cooling hole flow rate from the mathematical characterization.Type: GrantFiled: March 30, 2009Date of Patent: February 15, 2011Assignee: General Electric CompanyInventors: Ronald Scott Bunker, Jason Randolph Allen, Jared Michael Crosby
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Patent number: 7879203Abstract: A method and apparatus for depositing a coating material on a surface of a substrate by an ion plasma deposition process using a hollow cathode is disclosed. The cathode may be a substantially cylindrical hollow cathode. A plasma arc is formed on the outer circumference of the cathode to remove coating material from the cathode, which is then deposited on a surface of a substrate. An internal arc drive magnet is contained within the hollow bore of the cathode and cooling is provided to the magnet during operation.Type: GrantFiled: December 11, 2006Date of Patent: February 1, 2011Assignee: General Electric CompanyInventors: Scott Andrew Weaver, William Thomas Carter, Paul Mario Marruso
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Patent number: 7876454Abstract: A method for measurement of a cutting tool is provided. The method comprises positioning the cutting tool on a moveable stage, performing a first rotary scan of a first section of the cutting tool to generate a first scanning point cloud, segmenting the first scanning point cloud, performing a second rotary scan of the first section based on the segmentation of the first scanning point cloud, and extracting the parameters of the first section based on the second rotary scan of the first section. A system for extracting parameters of a cutting tool is also presented.Type: GrantFiled: September 29, 2008Date of Patent: January 25, 2011Assignee: General Electric CompanyInventors: Xiaoming Du, Kevin George Harding, Steven Robert Hayashi, Tian Chen, Jianming Zheng, Howard Paul Weaver, James Allen Baird, Xinjue Zou
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Patent number: 7852092Abstract: A system to measure thickness of a shroud is provided. The system includes at least one resistive element embedded within the shroud. The at least one resistive element is embedded within a thermal barrier coating layer deposited on a base portion of the shroud and an abradable coating layer deposited on the thermal barrier coating layer or directly into the shroud. The system also includes an impedance measurement device that measures a total resistance associated with the at least one resistive element.Type: GrantFiled: March 25, 2008Date of Patent: December 14, 2010Assignee: General Electric CompanyInventors: Emad Andarawis Andarawis, Chukwueloka Obiora Umeh
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Patent number: 7845390Abstract: Compositions suitable for use as cores and shell molds for casting of reactive metal alloys, and casting processes for producing components from such alloys. The composition contains a sintered particulate material of hafnia and at least one additional metal oxide in amounts to yield a ceramic composition containing up to 70 molar percent of hafnia, wherein the additional metal oxide is a rare-earth oxide, the sintered particulate material contains first and second phases, the first phase is the rare-earth oxide and hafnia in solid solution, the second phase is a compound of the rare-earth oxide and hafnia, and the second phase is less reactive with the reactive metal alloy than the first phase.Type: GrantFiled: January 31, 2008Date of Patent: December 7, 2010Assignee: General Electric CompanyInventors: Stephen Francis Bancheri, Frederic Joseph Klug, Bernard Patrick Bewlay
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Patent number: 7841167Abstract: An engine contains at least one pulse detonation combustor which is surrounded by a bypass flow air duct, through which bypass air flow is directed. The bypass air duct contains at least one converging-diverging structure to dampen or choke the upstream propagation of shock waves from the pulse detonation combustor through the bypass flow air duct. The bypass air also serves to cool the outer surfaces of the pulse detonation combustor. The bypass air flow is controlled in tandem with the heat release from the PDC to provide the appropriate amount of thermal energy to a downstream energy conversion device, such as a turbine. A mixing plenum is positioned downstream of the pulse detonation combustor and bypass flow air duct.Type: GrantFiled: November 17, 2006Date of Patent: November 30, 2010Assignee: General Electric CompanyInventors: Adam Rasheed, Anthony John Dean, Peirre Francois Pinard, Christian Lee Vandervort, Venkat Eswarlu Tangirala
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Patent number: 7840367Abstract: An inspection artifact includes a central portion and multiple optical and coordinate measurement machine (CMM) alignment features arranged on the central portion. The optical and CMM alignment features are configured to align the coordinates for an optical or a CMM measurement system to a common coordinate system. Another inspection artifact includes a central portion and multiple computed tomography (CT) alignment features arranged on the central portion. The CT alignment features are configured to align the coordinates for a CT system to a common coordinate system.Type: GrantFiled: November 28, 2007Date of Patent: November 23, 2010Assignee: General Electric CompanyInventors: Francis Howard Little, Yanyan Wu, Prabhjot Singh
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Patent number: 7829386Abstract: A semiconductor chip packaging structure is fabricated by using a dielectric film with two surfaces, and a power semiconductor chip with an active surface having contact pads. An adhesive layer is used to connect the first surface of the dielectric film and the active surface of the power semiconductor chip. A patterned electrically conductive layer is formed adjacent to the second surface of the film, extending through holes in the film to the contact pads.Type: GrantFiled: August 28, 2007Date of Patent: November 9, 2010Assignee: General Electric CompanyInventors: Raymond Albert Fillion, Richard Alfred Beaupre, Ahmed Elasser, Robert John Wojnarowski, Charles Steven Korman
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Patent number: 7829142Abstract: Disclosed herein is a method for aluminiding an internal passage of a metal substrate comprising injecting a slurry composition that comprises a powder comprising aluminum, a binder selected from the group consisting of colloidal silica, an organic resin, and a combination thereof, into the internal passage; applying compressed air to the internal passage to facilitate distribution of the slurry composition throughout the internal passage; and, heat treating the slurry composition under conditions sufficient to remove volatile components from the composition, and to cause diffusion of aluminum into a surface of the internal passage.Type: GrantFiled: June 21, 2006Date of Patent: November 9, 2010Assignee: General Electric CompanyInventors: Lawrence Bernard Kool, Michael Howard Rucker
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Patent number: 7830140Abstract: A method of inspecting a test part is provided. The method includes positioning an eddy current probe on a surface of the test part and scanning the test part using the eddy current probe to generate a first signal corresponding to a no lift-off condition of the test part. The method further includes positioning the eddy current probe at a pre-determined distance from the surface of the test part and scanning the test part using the eddy current probe positioned at the pre-determined distance from the test part to generate a second signal corresponding to a lift-off condition of the test part. The method also includes processing the first and second signals to estimate an electrical conductivity of the test part.Type: GrantFiled: August 7, 2007Date of Patent: November 9, 2010Assignee: General Electric CompanyInventors: Nilesh Tralshawala, Yuri Alexeyevich Plotnikov
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Patent number: 7818956Abstract: A pulse detonation (PD) assembly includes a number of PD chambers adapted to expel respective detonation product streams and a number of barriers disposed between respective pairs of PD chambers. The barriers define, at least in part, a number of sectors that contain at least one PD chamber. A hybrid engine includes a number of PD chambers and barriers. The hybrid engine further includes a turbine assembly having at least one turbine stage, being in flow communication with the PD chambers and being configured to be at least partially driven by the detonation product streams. A segmented hybrid engine includes a number of PD chambers and segments configured to receive and direct the detonation product streams from respective PD chambers. The segmented hybrid engine further includes a turbine assembly configured to be at least partially driven by the detonation product streams.Type: GrantFiled: May 13, 2005Date of Patent: October 26, 2010Assignee: General Electric CompanyInventors: Adam Rasheed, Anthony John Dean, Christian Lee Vandervort
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Patent number: 7817422Abstract: A heat sink for directly cooling at least one electronic device package is provided. The electronic device package has an upper contact surface and a lower contact surface. The heat sink comprises a cooling piece formed of at least one thermally conductive material. The cooling piece defines multiple inlet manifolds configured to receive a coolant and multiple outlet manifolds configured to exhaust the coolant. The inlet and outlet manifolds are interleaved. The cooling piece further defines multiple millichannels configured to receive the coolant from the inlet manifolds and to deliver the coolant to the outlet manifolds. The millichannels and inlet and outlet manifolds are further configured to directly cool one of the upper and lower contact surface of the electronic device package by direct contact with the coolant, such that the heat sink comprises an integral heat sink.Type: GrantFiled: August 18, 2008Date of Patent: October 19, 2010Assignee: General Electric CompanyInventors: Satish Sivarama Gunturi, Mahadevan Balasubramaniam, Ramakrishna Venkata Mallina, Richard Alfred Beaupre, Le Yan, Richard S. Zhang, Ljubisa Dragoljub Stevanovic, Adam Gregory Pautsch, Stephen Adam Solovitz
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Patent number: 7805251Abstract: A method including receiving a first line and a second line to be joined at a junction location to provide a reference curve. A corresponding system and computer program product.Type: GrantFiled: October 7, 2008Date of Patent: September 28, 2010Assignee: General Electric CompanyInventors: Harry Israel Ringermacher, Donald Robert Howard, Bryon Edward Knight, William George Patterson
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Patent number: 7791237Abstract: A fault tolerant synchronous permanent magnet machine is disclosed that reduces rotor losses by limiting eddy-current losses in the retaining sleeve. The machine limits eddy-current loss by any one or combination of axially segmenting the retaining sleeve, providing a highly electrically conductive non-magnetic shield to the retaining sleeve, and by configuring stator teeth width, stator teeth tip width, and slot distribution of the stator.Type: GrantFiled: December 19, 2006Date of Patent: September 7, 2010Assignee: General Electric CompanyInventors: Manoj Ramprasad Shah, Ayman Mohamed Fawzi EL-Refaie
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Patent number: 7784265Abstract: A pulse detonation combustor (PDC) assembly includes an upstream chamber forming an inlet plenum, a downstream chamber including a downstream portion of at least one PDC tube, and an integrated PDC head coupled to the upstream chamber and the downstream chamber. The integrated PDC head is configured to facilitate fuel injection and ignition within the PDC tube. The PDC tube includes an inner seal surface and an outer seal surface configured to mate with the inner seal surface, wherein the inner seal surface includes an elevated section thereon that engages with the outer seal surface such that the PDC tube is free to partially pivot about a longitudinal axis thereof.Type: GrantFiled: February 7, 2006Date of Patent: August 31, 2010Assignee: General Electric CompanyInventors: Adam Rasheed, Anthony John Dean
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Patent number: 7787270Abstract: A galvanic isolated DC-DC and DC-AC power conversion system is coupled to a plurality of DC sources which are derived from a combination of a plurality of single-phase and three-phase AC-DC converters. The DC-DC and DC-AC power conversion system in one embodiment is configured to provide mixed type outputs (mixed frequency, e.g. DC with 50 or 60 Hz, with 400 Hz; mixed voltage levels).Type: GrantFiled: June 6, 2007Date of Patent: August 31, 2010Assignee: General Electric CompanyInventors: Ravisekhar NadimpalliRaju, Richard S. Zhang, Rajib Datta, Allen Michael Ritter, Ljubisa Dragoljub Stevanovic
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Patent number: 7741591Abstract: An optically powered drive circuit and a method for controlling a first semiconductor switch are provided. The optically powered drive circuit includes a photovoltaic cell configured to receive a first light signal from a fiber optic cable and to output a first voltage in response to the first light signal. The optically powered drive circuit further includes an energy storage device electrically coupled to the photovoltaic cell configured to store electrical energy received from the first voltage and to output a second voltage. The optically powered drive circuit further includes an electrical circuit electrically coupled to both the photovoltaic cell and the energy storage device. The electrical circuit is energized by the second voltage. The electrical circuit is configured to receive the first voltage and to output a third voltage in response to the first voltage for controlling operation of the first semiconductor switch.Type: GrantFiled: October 8, 2008Date of Patent: June 22, 2010Assignee: General Electric CompanyInventors: Michael Joseph Schutten, Robert Louis Steigerwald, Glen Peter Koste, Jeffrey Joseph Nasadoski