Patents by Inventor Andrew Triscari
Andrew Triscari 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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Publication number: 20230343544Abstract: 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 sleeve. The structure of sleeve is formed with enlarged traps or voids in the sleeve that are disposed adjacent various rotating anti-wetting seals/seal surfaces formed between the sleeve and the shaft. The geometry of the traps is formed to retain liquid metal/lubricating fluid within the gap defined by the bearing assembly and to direct to liquid metal flowing outwardly from the gap defined between the sleeve and the shaft away from the rotating anti-wetting seals and back towards the gap. This geometry allows the centrifugal forces exerted on the liquid metal by the rotation of the bearing structure to move the outflowing liquid metal away from the rotating anti-wetting seals to significantly reduce contact of the liquid metal with the seals.Type: ApplicationFiled: April 26, 2023Publication date: October 26, 2023Inventors: Ian Strider Hunt, Jace Dowd, Kyle Russell Berndt, Eric Lubar, Andrew Triscari, Ryan Dagen
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Publication number: 20230272819Abstract: Systems and methods related to hydrodynamic bearings for use in X-ray sources are provided. In one aspect, a hydrodynamic bearing system includes a sleeve assembly including a cross-member fluidically dividing a first interior cavity from a second interior cavity, a first shaft positioned in the first interior cavity, and a second shaft positioned in the second interior cavity. The hydrodynamic bearing system may further include a first journal bearing including a first fluid interface surrounding at least a portion of the first cantilever shaft and configured to support radial loads and a second journal bearing including a second fluid interface surrounding at least a portion of the second cantilever shaft and configured to support radial loads.Type: ApplicationFiled: April 17, 2023Publication date: August 31, 2023Inventors: Andrew Triscari, Ian Hunt
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Patent number: 11670475Abstract: 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 sleeve. The structure of sleeve is formed with enlarged traps or voids in the sleeve that are disposed adjacent various rotating anti-wetting seals/seal surfaces formed between the sleeve and the shaft. The geometry of the traps is formed to retain liquid metal/lubricating fluid within the gap defined by the bearing assembly and to direct to liquid metal flowing outwardly from the gap defined between the sleeve and the shaft away from the rotating anti-wetting seals and back towards the gap. This geometry allows the centrifugal forces exerted on the liquid metal by the rotation of the bearing structure to move the outflowing liquid metal away from the rotating anti-wetting seals to significantly reduce contact of the liquid metal with the seals.Type: GrantFiled: April 30, 2021Date of Patent: June 6, 2023Assignee: GE Precision Healthcare LLCInventors: Ian Strider Hunt, Jace Dowd, Kyle Russell Berndt, Eric Lubar, Andrew Triscari, Ryan Dagen
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Patent number: 11655848Abstract: Systems and methods related to hydrodynamic bearings for use in X-ray sources are provided. In one aspect, a hydrodynamic bearing system includes a sleeve assembly including a cross-member fluidically dividing a first interior cavity from a second interior cavity, a first shaft positioned in the first interior cavity, and a second shaft positioned in the second interior cavity. The hydrodynamic bearing system may further include a first journal bearing including a first fluid interface surrounding at least a portion of the first cantilever shaft and configured to support radial loads and a second journal bearing including a second fluid interface surrounding at least a portion of the second cantilever shaft and configured to support radial loads.Type: GrantFiled: August 23, 2021Date of Patent: May 23, 2023Assignee: GE Precision Healthcare LLCInventors: Andrew Triscari, Ian Hunt
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Publication number: 20220351931Abstract: 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 sleeve. The structure of sleeve is formed with enlarged traps or voids in the sleeve that are disposed adjacent various rotating anti-wetting seals/seal surfaces formed between the sleeve and the shaft. The geometry of the traps is formed to retain liquid metal/lubricating fluid within the gap defined by the bearing assembly and to direct to liquid metal flowing outwardly from the gap defined between the sleeve and the shaft away from the rotating anti-wetting seals and back towards the gap. This geometry allows the centrifugal forces exerted on the liquid metal by the rotation of the bearing structure to move the outflowing liquid metal away from the rotating anti-wetting seals to significantly reduce contact of the liquid metal with the seals.Type: ApplicationFiled: April 30, 2021Publication date: November 3, 2022Inventors: Ian Strider Hunt, Jace Dowd, Kyle Russell Berndt, Eric Lubar, Andrew Triscari, Ryan Dagen
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Publication number: 20210381546Abstract: Systems and methods related to hydrodynamic bearings for use in X-ray sources are provided. In one aspect, a hydrodynamic bearing system includes a sleeve assembly including a cross-member fluidically dividing a first interior cavity from a second interior cavity, a first shaft positioned in the first interior cavity, and a second shaft positioned in the second interior cavity. The hydrodynamic bearing system may further include a first journal bearing including a first fluid interface surrounding at least a portion of the first cantilever shaft and configured to support radial loads and a second journal bearing including a second fluid interface surrounding at least a portion of the second cantilever shaft and configured to support radial loads.Type: ApplicationFiled: August 23, 2021Publication date: December 9, 2021Inventors: Andrew Triscari, Ian Hunt
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Patent number: 11098755Abstract: Systems and methods related to hydrodynamic bearings are provided. One example hydrodynamic bearing system includes a sleeve assembly including a cross-member fluidically dividing a first interior cavity from a second interior cavity, a first shaft positioned in the first interior cavity, and a second shaft positioned in the second interior cavity. The hydrodynamic bearing system further includes a first journal bearing including a first fluid interface surrounding at least a portion of the first cantilever shaft and configured to support radial loads and a second journal bearing including a second fluid interface surrounding at least a portion of the second cantilever shaft and configured to support radial loads.Type: GrantFiled: January 29, 2020Date of Patent: August 24, 2021Assignee: GE PRECISION HEALTHCARE LLCInventors: Andrew Triscari, Ian Hunt
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Publication number: 20210231167Abstract: Systems and methods related to hydrodynamic bearings are provided. One example hydrodynamic bearing system includes a sleeve assembly including a cross-member fluidically dividing a first interior cavity from a second interior cavity, a first shaft positioned in the first interior cavity, and a second shaft positioned in the second interior cavity. The hydrodynamic bearing system further includes a first journal bearing including a first fluid interface surrounding at least a portion of the first cantilever shaft and configured to support radial loads and a second journal bearing including a second fluid interface surrounding at least a portion of the second cantilever shaft and configured to support radial loads.Type: ApplicationFiled: January 29, 2020Publication date: July 29, 2021Inventors: Andrew Triscari, Ian Hunt
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Patent number: 11020067Abstract: Systems and methods related to hydrodynamic bearings are provided. One example system includes a hydrodynamic bearing including a rotational component configured to attach to an anode and a stationary component. The stationary component includes a bearing surface having a plurality of grooves configured to generate pressure in a fluid interface during rotation of the rotational component and where the bearing surface includes at least one recessed section profiled based on an expected pattern of wear.Type: GrantFiled: February 12, 2020Date of Patent: June 1, 2021Assignee: GE Precision Healthcare LLCInventors: Ian Hunt, Andrew Triscari, John McCabe, Michael Hebert
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Patent number: 11017977Abstract: Liquid metal bearing assemblies and methods for operation of said assemblies are provided. One example liquid metal bearing assembly includes a liquid metal interface positioned between a stationary component and a rotational component. The rotational component includes a liquid metal reservoir configured to contain a liquid metal and positioned radially inward from the liquid metal interface, a liquid metal passage extending between the liquid metal reservoir and the liquid metal interface, and an anti-wetting surface in the liquid metal passage.Type: GrantFiled: January 24, 2020Date of Patent: May 25, 2021Assignee: GE PRECISION HEALTHCARE LLCInventors: Ian Hunt, Andrew Jay Borland, Andrew Triscari, Steven Thiel
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Patent number: 10438767Abstract: A bearing structure for an X-ray tube is provided that includes a journal bearing shaft with a radially protruding thrust bearing flange encased within a bearing housing or sleeve. The sleeve includes a thrust seal that is engaged with the sleeve in a manner to maintain coaxiality for the rotating liquid metal seal formed in the sleeve about the shaft. The shaft includes a central bore containing a cooling tube that directs coolant within the bore to maximize the heat transfer from the shaft to the coolant, allowing materials with lower thermal conductivities, such as steel, to be used to form the bearing shaft. The thrust flange on the shaft is formed with channel(s) therein that enable the coolant and/or the liquid metal to effect greater heat transfer on the components of the sleeve through the thrust flange, thereby reducing thermal deformation of the bearing components.Type: GrantFiled: November 30, 2017Date of Patent: October 8, 2019Assignee: General Electric CompanyInventors: Ian Strider Hunt, Kevin Kruse, Andrew Triscari
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Publication number: 20190164716Abstract: A bearing structure for an X-ray tube is provided that includes a journal bearing shaft with a radially protruding thrust bearing flange encased within a bearing housing or sleeve. The sleeve includes a thrust seal that is engaged with the sleeve in a manner to maintain coaxiality for the rotating liquid metal seal formed in the sleeve about the shaft. The shaft includes a central bore containing a cooling tube that directs coolant within the bore to maximize the heat transfer from the shaft to the coolant, allowing materials with lower thermal conductivities, such as steel, to be used to form the bearing shaft. The thrust flange on the shaft is formed with channel(s) therein that enable the coolant and/or the liquid metal to effect greater heat transfer on the components of the sleeve through the thrust flange, thereby reducing thermal deformation of the bearing components.Type: ApplicationFiled: November 30, 2017Publication date: May 30, 2019Inventors: Ian Strider Hunt, Kevin Kruse, Andrew Triscari
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Patent number: 9449783Abstract: The present disclosure is directed towards the prevention of high voltage instabilities within X-ray tubes. For example, in one embodiment, an X-ray tube is provided. The X-ray tube generally includes a stationary member, and a rotary member configured to rotate with respect to the stationary member during operation of the X-ray tube. The X-ray tube also includes a liquid metal bearing material disposed in a space between the shaft and the sleeve, a seal disposed adjacent to the space to seal the liquid metal bearing material in the space, and an enhanced surface area material disposed on a side of the seal axially opposite the space and configured to trap within the enhanced surface area material liquid metal bearing material that escapes the seal.Type: GrantFiled: August 29, 2014Date of Patent: September 20, 2016Assignee: GENERAL ELECTRIC COMPANYInventors: Ian Strider Hunt, Donald Robert Allen, Kenwood Dayton, Andrew Triscari
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Publication number: 20140369475Abstract: The present disclosure is directed towards the prevention of high voltage instabilities within X-ray tubes. For example, in one embodiment, an X-ray tube is provided. The X-ray tube generally includes a stationary member, and a rotary member configured to rotate with respect to the stationary member during operation of the X-ray tube. The X-ray tube also includes a liquid metal bearing material disposed in a space between the shaft and the sleeve, a seal disposed adjacent to the space to seal the liquid metal bearing material in the space, and an enhanced surface area material disposed on a side of the seal axially opposite the space and configured to trap within the enhanced surface area material liquid metal bearing material that escapes the seal.Type: ApplicationFiled: August 29, 2014Publication date: December 18, 2014Inventors: Ian Strider Hunt, Donald Robert Allen, Kenwood Dayton, Andrew Triscari
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Patent number: 8848875Abstract: The present disclosure is directed towards the prevention of high voltage instabilities within X-ray tubes. For example, in one embodiment, an X-ray tube is provided. The X-ray tube generally includes a stationary member, and a rotary member configured to rotate with respect to the stationary member during operation of the X-ray tube. The X-ray tube also includes a liquid metal bearing material disposed in a space between the shaft and the sleeve, a seal disposed adjacent to the space to seal the liquid metal bearing material in the space, and an enhanced surface area material disposed on a side of the seal axially opposite the space and configured to trap within the enhanced surface area material liquid metal bearing material that escapes the seal.Type: GrantFiled: October 29, 2010Date of Patent: September 30, 2014Assignee: General Electric CompanyInventors: Ian Strider Hunt, Donald Robert Allen, Kenwood Dayton, Andrew Triscari
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Publication number: 20120106712Abstract: The present disclosure is directed towards the prevention of high voltage instabilities within X-ray tubes. For example, in one embodiment, an X-ray tube is provided. The X-ray tube generally includes a stationary member, and a rotary member configured to rotate with respect to the stationary member during operation of the X-ray tube. The X-ray tube also includes a liquid metal bearing material disposed in a space between the shaft and the sleeve, a seal disposed adjacent to the space to seal the liquid metal bearing material in the space, and an enhanced surface area material disposed on a side of the seal axially opposite the space and configured to trap within the enhanced surface area material liquid metal bearing material that escapes the seal.Type: ApplicationFiled: October 29, 2010Publication date: May 3, 2012Applicant: General Electric CompanyInventors: Ian Strider Hunt, Donald Robert Allen, Kenwood Dayton, Andrew Triscari