Patents by Inventor Robert Arvin Hedeen
Robert Arvin Hedeen 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: 10987733Abstract: A component formed by an additive manufacturing process includes a body and a first vibration damper. The body is formed from an additive manufacturing material, and defines at least a first cavity completely enclosed within the body. The first vibration damper is disposed within the first cavity. The first vibration damper includes a flowable medium and a first solidified element formed from the additive manufacturing material. The flowable medium surrounds the first solidified element.Type: GrantFiled: February 22, 2018Date of Patent: April 27, 2021Assignee: General Electric CompanyInventors: Daniel Jason Erno, Robert Arvin Hedeen, Prabhjot Singh
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Publication number: 20180180133Abstract: A component formed by an additive manufacturing process includes a body and a first vibration damper. The body is formed from an additive manufacturing material, and defines at least a first cavity completely enclosed within the body. The first vibration damper is disposed within the first cavity. The first vibration damper includes a flowable medium and a first solidified element formed from the additive manufacturing material. The flowable medium surrounds the first solidified element.Type: ApplicationFiled: February 22, 2018Publication date: June 28, 2018Inventors: Daniel Jason Erno, Robert Arvin Hedeen, Prabhjot Singh
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Patent number: 9903434Abstract: A component formed by an additive manufacturing process includes a body and a first vibration damper. The body is formed from an additive manufacturing material, and defines at least a first cavity completely enclosed within the body. The first vibration damper is disposed within the first cavity. The first vibration damper includes a flowable medium and a first solidified element formed from the additive manufacturing material. The flowable medium surrounds the first solidified element.Type: GrantFiled: August 21, 2013Date of Patent: February 27, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Daniel Jason Erno, Robert Arvin Hedeen, Prabhjot Singh
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Publication number: 20150052898Abstract: A component formed by an additive manufacturing process includes a body and a first vibration damper. The body is formed from an additive manufacturing material, and defines at least a first cavity completely enclosed within the body. The first vibration damper is disposed within the first cavity. The first vibration damper includes a flowable medium and a first solidified element formed from the additive manufacturing material. The flowable medium surrounds the first solidified element.Type: ApplicationFiled: August 21, 2013Publication date: February 26, 2015Applicant: General Electric CompanyInventors: Daniel Jason Erno, Robert Arvin Hedeen, Prabhjot Singh
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Publication number: 20140169968Abstract: A collision avoidance system and a wind turbine includes a tower, a rotor coupled to the tower and a nacelle coupled to the rotor such that at least one of the tower, the rotor and the nacelle include one or more acoustic retroreflectors. Particularly, the acoustic retroreflectors are designed to reflect acoustic waves corresponding to a designated frequency range back to a source of the acoustic waves.Type: ApplicationFiled: December 13, 2012Publication date: June 19, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Robert Arvin Hedeen, Michael John Wittbrodt
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Patent number: 8704520Abstract: A radio frequency (RF) coil for a magnetic resonance imaging (MRI) system includes a first end ring, a second end ring, and a plurality of rungs electrically coupled between the first and second end rings, each rung including a first rung portion formed from a plurality of conductors and a second rung portion formed from a single solid conductor. A resonance assembly for a magnetic resonance imaging (MRI) system and an MRI imaging system are also described herein.Type: GrantFiled: December 8, 2010Date of Patent: April 22, 2014Assignee: General Electric CompanyInventors: Saikat Saha, Thomas Kwok-fah Foo, Bruce Courtney Campbell Amm, Jean-Baptiste Mathieu, Robert Arvin Hedeen
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Publication number: 20130259684Abstract: A wind turbine having an attenuating unit is presented. One embodiment of the wind turbine includes a tower and a power unit disposed at a first end of the tower. The wind turbine further includes the attenuating unit that is operatively coupled to at least one of the tower and the power unit and configured to attenuate at least the portion of the vibrational bending waves having a frequency above a threshold frequency to reduce the tonal noise of the wind turbine.Type: ApplicationFiled: March 28, 2012Publication date: October 3, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Robert Arvin Hedeen, John Paul Davis
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Patent number: 8364424Abstract: A system and method are provided to monitor the health of a wind turbine gearbox. The system includes a plurality of sensors coupled to the wind turbine gearbox and a controller coupled to the plurality of sensors. The controller is configured to acquire vibration information from a vibration sensor, acquire a tachometer signal, convert the tachometer signal and the vibration information into a cycle domain signal, and perform an order analysis on the cycle domain signal, the order analysis providing information that identifies potential and actual damage within the wind turbine gearbox.Type: GrantFiled: July 30, 2010Date of Patent: January 29, 2013Assignee: General Electric CompanyInventors: Huageng Lou, Darren Lee Hallman, Robert Arvin Hedeen, Michael Sirak, Dennis Richter
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Publication number: 20120146643Abstract: A radio frequency (RF) coil for a magnetic resonance imaging (MRI) system includes a first end ring, a second end ring, and a plurality of rungs electrically coupled between the first and second end rings, each rung including a first rung portion formed from a plurality of conductors and a second rung portion formed from a single solid conductor. A resonance assembly for a magnetic resonance imaging (MRI) system and an MRI imaging system are also described herein.Type: ApplicationFiled: December 8, 2010Publication date: June 14, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: SAIKAT SAHA, THOMAS KWOK-fah FOO, BRUCE COURTNEY CAMPBELL AMM, JEAN-BAPTISTE MATHIEU, ROBERT ARVIN HEDEEN
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Publication number: 20120025526Abstract: A system and method are provided to monitor the health and performance of a wind turbine gearbox. A plurality of sensors coupled to the wind turbine gearbox provide input to a controller. The controller generates output information that includes performance and health information of the wind turbine gearbox based on the input received from each of the sensors.Type: ApplicationFiled: July 30, 2010Publication date: February 2, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: HUAGENG LUO, DARREN LEE HALLMAN, ROBERT ARVIN HEDEEN, MICHAEL SIRAK, DENNIS RICHTER
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Publication number: 20120029838Abstract: A system and method are provided to monitor the health of a wind turbine gearbox. The system includes a plurality of sensors coupled to the wind turbine gearbox and a controller coupled to the plurality of sensors. The controller is configured to acquire vibration information from a vibration sensor, acquire a tachometer signal, convert the tachometer signal and the vibration information into a cycle domain signal, and perform an order analysis on the cycle domain signal, the order analysis providing information that identifies potential and actual damage within the wind turbine gearbox.Type: ApplicationFiled: July 30, 2010Publication date: February 2, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: DARREN LEE HALLMAN, HUAGENG LUO, ROBERT ARVIN HEDEEN, MICHAEL SIRAK, DENNIS RICHTER
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Publication number: 20120025829Abstract: A gradient coil assembly is provided. The gradient coil assembly includes a cylindrical element. The cylindrical element has an inner surface and an outer surface. At least one first isolation material is disposed over the outer surface of the cylindrical element. A conducting material is disposed over the isolation material. A method to form the gradient coil assembly is also provided.Type: ApplicationFiled: July 27, 2010Publication date: February 2, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Abdurrahman Abdallah Khalidi, Robert Arvin Hedeen, Eric George Budesheim, Bruce Courtney Campbell Amm
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Patent number: 6441614Abstract: A self-shielded gradient coil assembly for an MR imaging system has inner and outer gradient coil windings disposed in coaxial relationship and defining a hollow annular space therebetween. Inner and outer helical cooling tubes are affixed to the outer and inner surfaces of the inner and outer gradient coil windings, respectively, by a thermally conductive epoxy, and a concrete filler material substantially fills the remaining hollow annular space. The concrete filler material may be poured into the hollow annular space to fill the space, or a pre-formed hollow concrete cylinder may be inserted coaxially into the space, defining remaining inner and outer annular volumes which are then filled with a thermally conductive epoxy bonding together the inner and outer gradient coil windings, the cooling tubes and the hollow concrete cylinder.Type: GrantFiled: December 2, 1999Date of Patent: August 27, 2002Assignee: General Electric CompanyInventors: William Alan Edelstein, Robert Arvin Hedeen, Anthony Mantone
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Patent number: 6437568Abstract: A low noise imaging apparatus for producing Magnetic Resonance (MR) images of a subject and for substantially minimizing acoustic noise generated during imaging is provided. The imaging apparatus comprises a magnet assembly, a gradient coil assembly, and a rf coil assembly, wherein at least one of the magnet assembly, the gradient coil assembly and the rf coil assembly are configured to reduce the generation and transmission of acoustic noise.Type: GrantFiled: October 2, 2000Date of Patent: August 20, 2002Assignee: General Electric CompanyInventors: William Alan Edelstein, Richard Philip Mallozzi, Robert Arvin Hedeen, Sayed-Amr El-Hamamsy, Mark Lloyd Miller, Paul Shadforth Thompson, Robert Adolph Ackermann, Bruce Campbell Amm, John Peter Fura, Mike James Radziun, David Edward Dean, Scott Thomas Mansell, Dewain Anthony Purgill, Robert Michael Vavrek
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Patent number: 6377876Abstract: A locomotive diagnostic system. A first sensor outputs a measurement of a first state variable (such as vibration) of a first locomotive component, such as a blower fan bearing set, and a second sensor outputs a measurement of a second state variable (such as rotational speed) of a second locomotive component, such as a blower fan shaft. The first state variable is indicative of the operation of the first component and is dependent on the second state variable. Data represents, for each of a number of different values of the second state variable, first, second, and third ranges of values of the first state variable which indicate, respectively, normal, worn, and failed operation of the first component. A mechanism, such as a digital computer, determines if the measurement of the first state variable is within the first, second, or third range of values of the first state variable for the measurement of the second state variable.Type: GrantFiled: December 17, 1998Date of Patent: April 23, 2002Assignee: General Electric CompanyInventors: Robert Arvin Hedeen, Steven Hector Azzaro, Robert John Naumiec, Slawomir Marian Zaremba
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Patent number: 6157276Abstract: An MR magnet assembly includes a cylindrical vessel for housing a superconducting magnet and having a vacuum between its inner and outer walls. The vessel defines a magnet bore for receiving a patient to be imaged. A gradient coil assembly is mounted in the bore adjacent the inner wall of the magnet assembly. To reduce gradient coil noise, the inner wall is constructed of a non-conductive material which does not support eddy currents.Type: GrantFiled: August 14, 1998Date of Patent: December 5, 2000Assignee: General Electric CompanyInventors: Robert Arvin Hedeen, William Alan Edelstein, Sayed-Amr El-Hamamsy, Kenneth Gordon Herd, Robert Adolph Ackermann
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Patent number: 6018967Abstract: A noise reducing clip device includes a clip body and a fulcrum-defining element. The clip body receives a washing machine wash tub wall and a fastener to secure the tub wall to the clip body and attach the clip body and tub wall therewith to a support leg disposed adjacent to the tub wall. The fulcrum-defining element is formed on and protrudes outwardly from the clip body for spacing the clip body from the support leg and providing only contact of the support leg with the fulcrum-defining element about which contact the support leg may undergo twisting and rocking motion induced by operation of a washing machine motor without imparting such motion to the tub wall via the clip body.Type: GrantFiled: September 21, 1998Date of Patent: February 1, 2000Assignee: General Electric CompanyInventors: Robert Arvin Hedeen, Ziqiang Hu, Walter John Smith
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Patent number: 5949163Abstract: A reinforced motor for reducing amplitude of operational vibrations includes a stator having an open end, a rotor disposed through and centrally of the stator and having at least one end, an end shield mounted to the open end of the stator and having an outer surface and rotatably supporting the rotor at the one end thereof, and an elongated stiffening member attached to or formed on the outer surface of the end shield so as to increase stiffness and reduce bending of the end shield and thereby reduce amplitude of operational vibrations produced by rotation of the rotor relative to the stator. A peripheral portion of the end shield forms an opening for receiving a switch housing. The stiffening member is attached on the outer surface of the end shield adjacent to the switch housing opening.Type: GrantFiled: October 26, 1998Date of Patent: September 7, 1999Assignee: General Electric CompanyInventors: Apostolos Pavlos Karafillis, Robert Arvin Hedeen
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Patent number: 5793210Abstract: A magnetic-resonance-imaging (MRI) scanner subassembly. In one subassembly, a preferably annularly-cylindrical-shaped enclosure contains a first vacuum, and an MRI gradient coil assembly is located within the enclosure in the first vacuum. Preferably, an annularly-cylindrical housing is included which is coaxially aligned with the enclosure and contains a second vacuum which is higher than the first vacuum, and an MRI superconductive main coil is located within the housing in the second vacuum. In another subassembly, an MRI gradient coil assembly has a threshold excitation frequency, and an isolation mount assemblage supports the MRI gradient coil assembly.Type: GrantFiled: August 13, 1996Date of Patent: August 11, 1998Assignee: General Electric CompanyInventors: Frederic Ghislain Pla, Robert Arvin Hedeen, Robert James Dobberstein, Thomas Gerard Ebben, Scott Thomas Mansell, Kemakolam Michael Obasih, Michael James Radziun, Peter Ping-Liang Sue, William Alan Edelstein
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Patent number: 5710533Abstract: An electrical transformer includes a housing, a transformer core and winding subassembly located in the housing, and a cooling fan subassembly. The cooling fan subassembly includes a variable speed fan located outside the housing, a temperature sensor located near the housing, and a controller having an output port connected to the variable speed fan and an input port connected to the temperature sensor. The controller reduces the fan speed (and hence the fan noise) when a lower fan speed can maintain the desired temperature as sensed by the temperature sensor. Preferably, the electrical transformer further includes an active mount subassembly and/or (when the housing includes a tank containing transformer fluid) a mechanism for varying the dynamic pressure of such transformer fluid.Type: GrantFiled: July 31, 1995Date of Patent: January 20, 1998Assignee: General Electric CompanyInventors: Frederic Ghislain Pla, Imdad Imam, Robert Arvin Hedeen, Frank Albert Pitman, Jr., Stephen Linwood Smith