Patents by Inventor Andrew Thomas Cross
Andrew Thomas Cross 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: 11990309Abstract: Various systems and methods are provided for a biased cathode assembly of an X-ray tube with improved thermal management and a method of manufacturing same. In one example, a cathode assembly of an X-ray tube comprises an emitter assembly including an emitter coupled to an emitter support structure, and an electrode assembly including an electrode stack and a plurality of bias electrodes. The emitter assembly including a plurality of independent components that are coupled together. The electrode assembly including a plurality of independent components that are coupled together, and the emitter assembly being coupled to the electrode assembly.Type: GrantFiled: October 31, 2022Date of Patent: May 21, 2024Assignee: GE Precision Healthcare LLCInventors: Andrew Thomas Cross, Uwe Wiedmann, Marshall Gordon Jones, Carey Rogers, John Scott Price, Joseph Darryl Michael, Sergio Lemaitre, Fulton Jose Lopez, Vasile Bogdan Neculaes, Steve Buresh, David Wagner
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Publication number: 20240161996Abstract: Various methods and systems are provided for an x-ray imaging system. In one example, a method for decelerating a rotor of an x-ray tube of an imaging system includes controlling and/or monitoring a speed and position of the rotor, passing the rotor through a first position where a force exerted on the rotor, is less than Earth's gravitational pull, the force due to a combination of gravity and radial acceleration, and initiating a predefined deceleration profile to decelerate the rotor to a halt when the x-ray tube passes through the first position.Type: ApplicationFiled: November 15, 2022Publication date: May 16, 2024Inventors: Carey Rogers, Vasile Bogdan Neculaes, Nidhishri Tapadia, Andrew Thomas Cross, Uwe Wiedmann
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Publication number: 20240151343Abstract: A navigation apparatus for use in navigating a pipe having a sidewall defining an interior cavity is provided. The navigation apparatus includes a body assembly having a first end and a second end and configured to move through the interior cavity of the pipe. The navigation apparatus also includes a channel defining a fluid passageway extending at least partly between the first end and the second end of the body assembly, an inlet for fluid from the interior cavity of the pipe to enter the fluid passageway, and an outlet for the fluid to exit the fluid passageway and return to the interior cavity of the pipe. The channel is configured to allow the fluid to flow through the fluid passageway and from the first end of the body assembly to the second end of the body assembly as the body assembly moves through the interior cavity of the pipe.Type: ApplicationFiled: November 7, 2022Publication date: May 9, 2024Inventors: Deepak Trivedi, Andrew Thomas Cross, Christopher Walter Falcone
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Publication number: 20240151110Abstract: A tunneling device includes a body assembly, an expander coupled to the body assembly and extending along a longitudinal axis, and a tip coupled to the expander. The expander is disposed between a force transmitter and the tip. The expander is expandable in a direction perpendicular to the longitudinal axis between a first configuration having a first width measured perpendicular to the longitudinal axis and a second configuration having a second width measured perpendicular to the longitudinal axis. The tip has a width measured perpendicular to the longitudinal axis. The first width of the expander is equal to or less than the width of the tip. The force transmitter is configured to deliver a force through the expander to the tip to move the tip in a direction parallel to the longitudinal axis with the expander in the second configuration.Type: ApplicationFiled: November 7, 2022Publication date: May 9, 2024Inventors: Andrew Thomas Cross, Christopher Walter Falcone, Deepak Trivedi
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Publication number: 20230343543Abstract: A bearing structure for an X-ray tube is provided that includes a journal bearing shaft with a radially protruding thrust bearing encased within a bearing sleeve, one of which rotates relative to the other. The stationary component, e.g., the journal bearing and/or the thrust bearing includes at least one vent groove formed therein that improves the ability of the journal bearing structure to enable gases trapped by the liquid metal within the bearing assembly to escape through the vent groove to the exterior of the X-ray tube. By adding a strategically located channel or vent groove of sufficient size in at least one of the journal bearing or the thrust bearing, the pressures resisted by the seal created between the liquid metal and the vent groove(s) in the bearing components is significantly reduced, allowing escape of the gases to avoid detrimental effects to the operation of the X-ray tube, while maintaining the load carrying capacity of the bearing assembly.Type: ApplicationFiled: May 1, 2023Publication date: October 26, 2023Inventors: Ian Strider Hunt, Andrew Thomas Cross
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Patent number: 11742722Abstract: An electrical machine comprising a rotor 20, a stator 30 and an air gap 40 arranged between the rotor 20 and the stator 30 is provided. The stator 30 or rotor 20 comprises a plurality of electrical coils 90, wherein one or more of the electrical coils 90 carry a heat sink, wherein the heat sink is attached to the electrical coil with a thermally conductive material. Methods for modifying a temperature distribution of a stator in an electrical machine are also provided.Type: GrantFiled: July 15, 2021Date of Patent: August 29, 2023Assignee: General Electric Renovables Espana, S.L.Inventors: Sadeo Ramtahal, Andrew Thomas Cross, Rinaldo Luigi Miorini, Julio Cesar Urresty, Cesar Muñiz Casais, Lakshminarayana Kanakamedala
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Patent number: 11683919Abstract: A heat pipe assembly includes walls having porous wick linings, an insulating layer coupled with at least one of the walls, and an interior chamber sealed by the walls. The linings hold a liquid phase of a working fluid in the interior chamber. The insulating layer is directly against a conductive component of an electromagnetic power conversion device such that heat from the conductive component vaporizes the working fluid in the porous wick lining of the at least one wall and the working fluid condenses at or within the porous wick lining of at least one other wall to cool the conductive component of the electromagnetic power conversion device. The assembly can be placed in direct contact with the device while the device is operating and/or experiencing time-varying magnetic fields that cause the device to operate.Type: GrantFiled: August 11, 2021Date of Patent: June 20, 2023Assignee: General Electric CompanyInventors: Karthik Bodla, Nathaniel Benedict Hawes, Brian Magann Rush, Weijun Yin, Andrew Thomas Cross
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Patent number: 11676791Abstract: A bearing structure for an X-ray tube is provided that includes a journal bearing shaft with a radially protruding thrust bearing encased within a bearing sleeve, one of which rotates relative to the other. The stationary component, e.g., the journal bearing and/or the thrust bearing includes at least one vent groove formed therein that improves the ability of the journal bearing structure to enable gases trapped by the liquid metal within the bearing assembly to escape through the vent groove to the exterior of the X-ray tube. By adding a strategically located channel or vent groove of sufficient size in at least one of the journal bearing or the thrust bearing, the pressures resisted by the seal created between the liquid metal and the vent groove(s) in the bearing components is significantly reduced, allowing escape of the gases to avoid detrimental effects to the operation of the X-ray tube, while maintaining the load carrying capacity of the bearing assembly.Type: GrantFiled: February 22, 2021Date of Patent: June 13, 2023Assignee: GE Precision Healthcare LLCInventors: Ian Strider Hunt, Andrew Thomas Cross
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Publication number: 20230050180Abstract: Various systems and methods are provided for a biased cathode assembly of an X-ray tube with improved thermal management and a method of manufacturing same. In one example, a cathode assembly of an X-ray tube comprises an emitter assembly including an emitter coupled to an emitter support structure, and an electrode assembly including an electrode stack and a plurality of bias electrodes. The emitter assembly including a plurality of independent components that are coupled together. The electrode assembly including a plurality of independent components that are coupled together, and the emitter assembly being coupled to the electrode assembly.Type: ApplicationFiled: October 31, 2022Publication date: February 16, 2023Inventors: Andrew Thomas Cross, Uwe Wiedmann, Marshall Gordon Jones, Carey Rogers, John Scott Price, Joseph Darryl Michael, Sergio Lemaitre, Fulton Jose Lopez, Vasile Bogdan Neculaes, Steve Buresh, David Wagner
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Patent number: 11552518Abstract: The present disclosure relates to armature segments for an armature for an electrical machine. An armature segment may comprise a plurality of coils and an electrically insulating supporting structure providing structural support to the plurality of coils. An armature may comprise a plurality of armature segments. The present disclosure further relates to methods for assembling such armature segments and armature.Type: GrantFiled: June 9, 2021Date of Patent: January 10, 2023Assignee: General Electric Renovables Espana, S.L.Inventors: Andrew Thomas Cross, David Torrey, Michel Schweitzer, Bruno Crepel, Mickael Portets, Roel Schuring
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Patent number: 11523793Abstract: Various methods and systems are provided for an x-ray imaging system. In one example, a method for decelerating a rotor of an x-ray tube of an imaging system includes controlling and/or monitoring a speed and position of the rotor, passing the rotor through a first position where a force exerted on the rotor, is less than Earth's gravitational pull, the force due to a combination of gravity and radial acceleration, and initiating a predefined deceleration profile to decelerate the rotor to a halt when the x-ray tube passes through the first position.Type: GrantFiled: May 8, 2020Date of Patent: December 13, 2022Assignee: GE Precision Healthcare LLCInventors: Carey Rogers, Vasile Bogdan Neculaes, Nidhishri Tapadia, Andrew Thomas Cross, Uwe Wiedmann
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Patent number: 11515117Abstract: Various systems and methods are provided for a biased cathode assembly of an X-ray tube with improved thermal management and a method of manufacturing same. In one example, a cathode assembly of an X-ray tube comprises an emitter assembly including an emitter coupled to an emitter support structure, and an electrode assembly including an electrode stack and a plurality of bias electrodes. The emitter assembly including a plurality of independent components that are coupled together. The electrode assembly including a plurality of independent components that are coupled together, and the emitter assembly being coupled to the electrode assembly.Type: GrantFiled: August 28, 2020Date of Patent: November 29, 2022Assignee: GE Precision Healthcare LLCInventors: Andrew Thomas Cross, Uwe Wiedmann, Marshall Gordon Jones, Carey Rogers, John Scott Price, Joseph Darryl Michael, Sergio Lemaitre, Fulton Jose Lopez, Vasile Bogdan Neculaes, Steve Buresh, David Wagner
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Publication number: 20220270843Abstract: A bearing structure for an X-ray tube is provided that includes a journal bearing shaft with a radially protruding thrust bearing encased within a bearing sleeve, one of which rotates relative to the other. The stationary component, e.g., the journal bearing and/or the thrust bearing includes at least one vent groove formed therein that improves the ability of the journal bearing structure to enable gases trapped by the liquid metal within the bearing assembly to escape through the vent groove to the exterior of the X-ray tube. By adding a strategically located channel or vent groove of sufficient size in at least one of the journal bearing or the thrust bearing, the pressures resisted by the seal created between the liquid metal and the vent groove(s) in the bearing components is significantly reduced, allowing escape of the gases to avoid detrimental effects to the operation of the X-ray tube, while maintaining the load carrying capacity of the bearing assembly.Type: ApplicationFiled: February 22, 2021Publication date: August 25, 2022Inventors: Ian Strider Hunt, Andrew Thomas Cross
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Patent number: 11387699Abstract: A generator, which may be used in a wind turbine, has a first stationary component carrying a first winding configuration and a second rotating component carrying a second winding configuration. The second rotating component includes a body portion and a plurality of teeth spaced around and extending radially from the body portion. The second winding configuration is arranged in slots defined between adjacent teeth. A housing is arranged around and rotates with the body portion. A heat exchange circuit is arranged on the second rotating component and includes a coolant channel defined in the teeth; a pump; and a heat exchanger arranged on the housing so as to rotate with the housing, the heat exchanger transverse to a rotational direction of the housing.Type: GrantFiled: December 15, 2020Date of Patent: July 12, 2022Assignee: General Electric Renovables Espana, S.L.Inventors: Roelof Willem Schuring, Lana Maria Osusky, Andrew Thomas Cross, David Allan Torrey
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Publication number: 20220209604Abstract: The present disclosure relates to armature segments for an armature for an electrical machine. An armature segment may comprise a plurality of coils and an electrically insulating supporting structure providing structural support to the plurality of coils. An armature may comprise a plurality of armature segments. The present disclosure further relates to methods for assembling such armature segments and armature.Type: ApplicationFiled: June 9, 2021Publication date: June 30, 2022Inventors: Andrew Thomas Cross, David Torrey, Michel Schweitzer, Bruno Crepel, Mickael Portets, Roel Schuring
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Publication number: 20220190663Abstract: A generator, which may be used in a wind turbine, has a first stationary component carrying a first winding configuration and a second rotating component carrying a second winding configuration. The second rotating component includes a body portion and a plurality of teeth spaced around and extending radially from the body portion. The second winding configuration is arranged in slots defined between adjacent teeth. A housing is arranged around and rotates with the body portion. A heat exchange circuit is arranged on the second rotating component and includes a coolant channel defined in the teeth; a pump; and a heat exchanger arranged on the housing so as to rotate with the housing, the heat exchanger transverse to a rotational direction of the housing.Type: ApplicationFiled: December 15, 2020Publication date: June 16, 2022Inventors: Roelof Willem Schuring, Lana Maria Osusky, Andrew Thomas Cross, David Allan Torrey
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Patent number: 11309160Abstract: Various methods and systems are provided for an x-ray imaging system. In one example, an x-ray tube of the imaging system includes a rotor with a core forming a continuous unit with at least one of a retention sleeve and a bearing assembly sleeve. The rotor further includes one or more magnets disposed in the core and maintained in place by the retention sleeve.Type: GrantFiled: May 8, 2020Date of Patent: April 19, 2022Assignee: GE Precision Healthcare LLCInventors: Nidhishri Tapadia, Vasile Bogdan Neculaes, Andrew Thomas Cross, Ian Strider Hunt
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Publication number: 20220069672Abstract: An electric motor may include a stator assembly comprising a stator housing, and one or more rotors coupled to the stator by a rotor shaft assembly. The stator housing may include a cooling structure that has a plurality of cooling body portions and a plurality of cooling conduits defined by the plurality of cooling body portions. A method of forming a stator housing for an electric machine may include additively manufacturing a stator housing that includes a cooling structure defining a fluid domain, coupling a working fluid source to the stator housing and introducing a working fluid into the fluid domain defined by the cooling structure, and sealing the cooling structure with the working fluid contained within the fluid domain of the cooling structure.Type: ApplicationFiled: July 30, 2021Publication date: March 3, 2022Inventors: Joseph John Zierer, Brian Magann Rush, Karthik K. Bodla, Andrew Thomas Cross, Vandana Prabhakar Rallabandi, Konrad Roman Weeber, Anoop Kumar Jassal
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Publication number: 20220068585Abstract: Various systems and methods are provided for a biased cathode assembly of an X-ray tube with improved thermal management and a method of manufacturing same. In one example, a cathode assembly of an X-ray tube comprises an emitter assembly including an emitter coupled to an emitter support structure, and an electrode assembly including an electrode stack and a plurality of bias electrodes. The emitter assembly including a plurality of independent components that are coupled together. The electrode assembly including a plurality of independent components that are coupled together, and the emitter assembly being coupled to the electrode assembly.Type: ApplicationFiled: August 28, 2020Publication date: March 3, 2022Inventors: Andrew Thomas Cross, Uwe Wiedmann, Marshall Gordon Jones, Carey Rogers, John Scott Price, Joseph Darryl Michael, Sergio Lemaitre, Fulton Jose Lopez, Vasile Bogdan Neculaes, Steve Buresh, David Wagner
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Publication number: 20220021276Abstract: An electrical machine comprising a rotor 20, a stator 30 and an air gap 40 arranged between the rotor 20 and the stator 30 is provided. The stator 30 or rotor 20 comprises a plurality of electrical coils 90, wherein one or more of the electrical coils 90 carry a heat sink, wherein the heat sink is attached to the electrical coil with a thermally conductive material. Methods for modifying a temperature distribution of a stator in an electrical machine are also provided.Type: ApplicationFiled: July 15, 2021Publication date: January 20, 2022Inventors: Sadeo Ramtahal, Andrew Thomas Cross, Rinaldo Luigi Miorini, Julio Cesar Urresty, Cesar Muñiz Casais, Lakshminarayana Kanakamedala