Patents by Inventor Madhusudhana T. Subraya
Madhusudhana T. Subraya 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: 9159523Abstract: An x-ray tube having a coated x-ray tube frame inner surface and a coated anode assembly is provided. The x-ray tube includes an x-ray tube frame in which an anode assembly is disposed therein. A cathode assembly is also disposed within the x-ray tube frame that emits an electron beam to strike a target surface of the anode assembly and form x-rays. A plasma-sprayed tungsten oxide coating is formed on an inner surface of the x-ray tube frame and on the anode assembly to dissipate heat created by the electron beam.Type: GrantFiled: April 2, 2012Date of Patent: October 13, 2015Assignee: General Electric CompanyInventor: Madhusudhana T. Subraya
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Publication number: 20120189104Abstract: An x-ray tube having a coated x-ray tube frame inner surface and a coated anode assembly is provided. The x-ray tube includes an x-ray tube frame in which an anode assembly is disposed therein. A cathode assembly is also disposed within the x-ray tube frame that emits an electron beam to strike a target surface of the anode assembly and form x-rays. A plasma-sprayed tungsten oxide coating is formed on an inner surface of the x-ray tube frame and on the anode assembly to dissipate heat created by the electron beam.Type: ApplicationFiled: April 2, 2012Publication date: July 26, 2012Inventor: Madhusudhana T. Subraya
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Patent number: 8121259Abstract: An apparatus includes an electron collector includes a body having an internal bore formed therethrough along a first direction and a window side having an aperture formed in a first portion thereof along a second direction different from the first direction. The apparatus also includes a cover plate having a bottom surface coupled to a second portion of the first surface of the electron collector, and an x-ray transmission window coupled to the cover plate and aligned with the aperture along the second direction, wherein a recess is formed along the second direction in one of the first portion of the first surface of the electron collector and a portion of the bottom surface of the cover plate, and wherein a gap is formed between the bottom surface of the cover plate and the first surface of the electron collector.Type: GrantFiled: December 3, 2009Date of Patent: February 21, 2012Assignee: General Electric CompanyInventors: Michael Scott Hebert, Gregory Alan Steinlage, Madhusudhana T. Subraya, Donald Robert Allen, James J. Van Bogart
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Publication number: 20110135067Abstract: An apparatus includes an electron collector includes a body having an internal bore formed therethrough along a first direction and a window side having an aperture formed in a first portion thereof along a second direction different from the first direction. The apparatus also includes a cover plate having a bottom surface coupled to a second portion of the first surface of the electron collector, and an x-ray transmission window coupled to the cover plate and aligned with the aperture along the second direction, wherein a recess is formed along the second direction in one of the first portion of the first surface of the electron collector and a portion of the bottom surface of the cover plate, and wherein a gap is formed between the bottom surface of the cover plate and the first surface of the electron collector.Type: ApplicationFiled: December 3, 2009Publication date: June 9, 2011Inventors: Michael Scott Hebert, Gregory Alan Steinlage, Madhusudhana T. Subraya, Donald Robert Allen, James J. Van Bogart
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Patent number: 7668298Abstract: A system and method for collecting backscattered electrons within a substantially evacuated vessel containing both an electron-emitting cathode assembly and an electron-attracting anode assembly. The system and method comprises an electron collector assembly including a first plate, a second plate, an internal member, a fluid inlet, and a fluid outlet. The first plate is mounted within the vessel closest to the anode assembly. The second plate is mounted within the vessel closest to the cathode assembly. The internal member is positioned between the first plate and the second plate, and includes an internal conduit for conveying a heat absorbing cooling fluid therethrough.Type: GrantFiled: February 29, 2008Date of Patent: February 23, 2010Assignee: General Electric Co.Inventors: Madhusudhana T. Subraya, Michael Scott Hebert, Gregory Alan Steinlage
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Publication number: 20090060139Abstract: An x-ray tube having a coated x-ray tube frame inner surface and a coated anode assembly is provided. The x-ray tube includes an x-ray tube frame in which an anode assembly is disposed therein. A cathode assembly is also disposed within the x-ray tube frame that emits an electron beam to strike a target surface of the anode assembly and form x-rays. A plasma-sprayed tungsten coating is formed on an inner surface of the x-ray tube frame and on the anode assembly to dissipate heat created by the electron beam.Type: ApplicationFiled: August 28, 2007Publication date: March 5, 2009Inventor: Madhusudhana T. Subraya
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Publication number: 20090060140Abstract: An x-ray tube includes an anode comprising a focal track and a cathode assembly configured to emit an electron beam toward a focal spot on the focal track. The x-ray tube also includes a controller configured to wobble the electron beam among a plurality of focal points in a direction tangent to the focal track. The plurality of focal points includes at least one focal point that is bounded by a pair of boundary focal points. The controller is further configured to delay a wobble of the electron beam away from the at least one focal point for a pre-determined amount of time.Type: ApplicationFiled: August 29, 2007Publication date: March 5, 2009Inventors: Madhusudhana T. Subraya, Ron Kent Hockersmith
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Publication number: 20090052627Abstract: A system and method for collecting backscattered electrons within a substantially evacuated vessel containing both an electron-emitting cathode assembly and an electron-attracting anode assembly. The system and method comprises an electron collector assembly including a first plate, a second plate, an internal member, a fluid inlet, and a fluid outlet. The first plate is mounted within the vessel closest to the anode assembly. The second plate is mounted within the vessel closest to the cathode assembly. The internal member is positioned between the first plate and the second plate, and includes an internal conduit for conveying a heat absorbing cooling fluid therethrough.Type: ApplicationFiled: February 29, 2008Publication date: February 26, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Madhusudhana T. Subraya, Michael Scott Hebert, Gregory Alan Steinlage
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Patent number: 7496180Abstract: An x-ray tube includes an anode comprising a focal track and a cathode assembly configured to emit an electron beam toward a focal spot on the focal track. The x-ray tube also includes a controller configured to wobble the electron beam among a plurality of focal points in a direction tangent to the focal track. The plurality of focal points includes at least one focal point that is bounded by a pair of boundary focal points. The controller is further configured to delay a wobble of the electron beam away from the at least one focal point for a pre-determined amount of time.Type: GrantFiled: August 29, 2007Date of Patent: February 24, 2009Assignee: General Electric CompanyInventors: Madhusudhana T. Subraya, Ron Kent Hockersmith
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Patent number: 7359486Abstract: A structure for collecting scattered electrons within a substantially evacuated vessel containing both an electron-emitting cathode and an electron-attracting anode is disclosed herein. The electron-collecting structure includes a two-sided first plate, a two-sided second plate, a fluid inlet, and a fluid outlet. The first plate is both electrically conductive and thermally emissive and is mountable within the vessel so that its first side at least partially faces the anode. The second plate is also thermally emissive and has a first side that is substantially conterminous with the second side of the first plate. Furthermore, the second plate additionally has an internal conduit for conveying a heat-absorbing fluid within. Both the fluid inlet and the fluid outlet are in fluid communication with the conduit in the second plate. During operation, the structure is able to attract scattered electrons and transfer thermal energy attributable to the electrons away from the structure.Type: GrantFiled: December 20, 2005Date of Patent: April 15, 2008Assignee: General Electric Co.Inventors: Madhusudhana T. Subraya, Michael Scott Hebert, Gregory Alan Steinlage
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Patent number: 7042981Abstract: An x-ray tube window cooling assembly (11) for an x-ray tube (18) includes an electron collector body (110). The electron collector body (110) is thermally coupled to an x-ray tube window (102). The electron collector body (110) may include a coolant circuit (112) with a coolant inlet (114) and a coolant outlet (122). One or more thermal exchange devices may be coupled to the x-ray tube window (102) or to the coolant circuit (112) and reduce temperature of the x-ray tube window (102).Type: GrantFiled: December 9, 2003Date of Patent: May 9, 2006Assignee: General Electric Co.Inventors: Madhusudhana T. Subraya, Carey S. Rogers, Manohar G. Kollegal, Doug Snyder, Krystyna Truszkowska
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Patent number: 7016472Abstract: An x-ray tube window cooling assembly (11) for an x-ray tube (18) includes an electron collector body (110). The electron collector body (110) is thermally coupled to an x-ray tube window (102). The electron collector body (110) includes a coolant circuit (112) with a coolant inlet (114) and a coolant outlet (122). Multiple thermal exchange devices are coupled to the coolant circuit (112) and reduce temperature of a coolant passing through the exchange devices.Type: GrantFiled: October 10, 2003Date of Patent: March 21, 2006Assignee: General Electric CompanyInventors: Madhusudhana T. Subraya, Carey S. Rogers, Manohar G. Kollegal, Doug Snyder, Krystyna Truszkowska
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Publication number: 20040223588Abstract: An x-ray tube window cooling assembly (11) for an x-ray tube (18) includes an electron collector body (110). The electron collector body (110) is thermally coupled to an x-ray tube window (102). The electron collector body (110) may include a coolant circuit (112) with a coolant inlet (114) and a coolant outlet (122). One or more thermal exchange devices may be coupled to the x-ray tube window (102) or to the coolant circuit (112) and reduce temperature of the x-ray tube window (102).Type: ApplicationFiled: December 9, 2003Publication date: November 11, 2004Applicant: GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLCInventors: Madhusudhana T. Subraya, Carey S. Rogers, Manohar G. Kollegal, Doug Snyder, Krystyna Truszkowska
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Publication number: 20040114724Abstract: An x-ray tube window cooling assembly (11) for an x-ray tube (18) includes an electron collector body (110). The electron collector body (110) is thermally coupled to an x-ray tube window (102). The electron collector body (110) includes a coolant circuit (112) with a coolant inlet (114) and a coolant outlet (122). Multiple thermal exchange devices are coupled to the coolant circuit (112) and reduce temperature of a coolant passing through the exchange devices.Type: ApplicationFiled: October 10, 2003Publication date: June 17, 2004Inventors: Madhusudhana T. Subraya, Carey S. Rogers, Manohar G. Kollegal, Doug Snyder, Krystyna Truszkowska
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Publication number: 20040071268Abstract: An x-ray tube window cooling assembly (11) for an x-ray tube (18) is provided. The cooling assembly (11) includes an electron collector body (110) coupled to an x-ray tube window (104) and having a first coolant circuit (112). The coolant circuit (112) includes a coolant inlet (114) and a coolant outlet (122). The coolant outlet (122) directs coolant at an x-ray tube window surface (152) to impinge upon and cool the x-ray tube window (104). The coolant is reflected off the reflection surface (146) as to impinge upon and cool the x-ray tube window (104). A method of operating the x-ray tube (18) is also provided.Type: ApplicationFiled: October 11, 2002Publication date: April 15, 2004Inventors: Madhusudhana T. Subraya, Carey S. Rogers, Michael J. Price
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Patent number: 6714626Abstract: An x-ray tube window cooling assembly (11) for an x-ray tube (18) is provided. The cooling assembly (11) includes an electron collector body (110) coupled to an x-ray tube window (104) and having a first coolant circuit (112). The coolant circuit (112) includes a coolant inlet (114) and a coolant outlet (122). The coolant outlet (122) directs coolant at an x-ray tube window surface (152) to impinge upon and cool the x-ray tube window (104). The coolant is reflected off the reflection surface (146) as to impinge upon and cool the x-ray tube window (104). A method of operating the x-ray tube (18) is also provided.Type: GrantFiled: October 11, 2002Date of Patent: March 30, 2004Assignee: GE Medical Systems Global Technology Company, LLCInventors: Madhusudhana T. Subraya, Carey S. Rogers, Michael J. Price