Patents by Inventor Lijo Joseph Thandiackal

Lijo Joseph Thandiackal 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).

  • Patent number: 7254216
    Abstract: A filter assembly for a computed tomographic imaging system includes first and second endplates at opposite ends of the filter assembly. Also provided is a first moveable subassembly that includes at least a first x-ray filter and which is configured to move along an axis perpendicular to the first endplate between the first the second endplates. A second moveable subassembly is also provided that includes at least a second x-ray filter. The second moveable subassembly is configured to move along an axis perpendicular to the second endplate between the first and second endplates. The first moveable subassembly and the second moveable subassembly are independently movable to provide at least a small bowtie x-ray filter, a large bowtie x-ray filter, a medium bowtie x-ray filter, a flat filter, and a closed position for a radiation source positioned in a fixed position relative to the filter assembly.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: August 7, 2007
    Assignee: General Electric Company
    Inventors: Lijo Joseph Thandiackal, Todd Everett Schueneman
  • Patent number: 6814488
    Abstract: An object of the present invention is to provide an X-ray generator capable of compensating for the volume expansion of an insulating oil without the necessity of labor-intensive maintenance. A tubular body is included to penetrate through a tank that is sealed while accommodating a high-voltage assembly and an X-ray tube assembly and having an insulating oil poured thereinto. The lumen of the tubular body opens onto the ambient space at both ends of the tubular body. The tubular body expands or contracts depending on a difference between the pressure in the lumen and the internal pressure of the tank.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: November 9, 2004
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Lijo Joseph Thandiackal, Denis Perrillat
  • Patent number: 6778634
    Abstract: It is an object to provide an X-ray generating apparatus which permits easy alignment of an X-ray tube and easy insulation against high voltages. A screw through hole and pin through holes corresponding respectively to a screw hole and plural pin holes formed in an end face of a base portion of an X-ray tube are formed in an abutment face of a bracket against which the end face of the base portion of the X-ray tube comes into abutment, and a screw and plural pins are inserted respectively from the bracket side into the screw hole and plural pin holes in the X-ray tube through the screw through hole and the pin through holes, thereby mounting the X-ray tube to the bracket. The bracket is formed by an integral structure of FR 4.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: August 17, 2004
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Lijo Joseph Thandiackal, Denis Perrillat
  • Patent number: 6775353
    Abstract: It is an X-ray generating apparatus having an X-ray shielding means superior in thermal conductivity. The X-ray generating apparatus comprises an X-ray tube, an X-ray tube container, and a support member which is constructed of an electrically insulating material and which supports the X-ray tube within the X-ray tube container, the X-ray tube container being constituted by a combination of copper alloy plates with lead incorporated therein and a plate of a composite material, the composite material being formed by laminating lead and epoxy laminated glass cloth sheets so as to include an intermediate layer of lead, the X-ray tube container having an aperture (for X-ray emission and containing the X-ray tube so as to prevent the emission of X-ray from any other portion than the aperture.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: August 10, 2004
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Lijo Joseph Thandiackal, Denis Perrillat, Balasubramannian Kandankumarath
  • Publication number: 20030099326
    Abstract: An object of the present invention is to provide an X-ray generator capable of compensating for the volume expansion of an insulating oil without the necessity of labor-intensive maintenance. A tubular body is included to penetrate through a tank that is sealed while accommodating a high-voltage assembly and an X-ray tube assembly and having an insulating oil poured thereinto. The lumen of the tubular body opens onto the ambient space at both ends of the tubular body. The tubular body expands or contracts depending on a difference between the pressure in the lumen and the internal pressure of the tank.
    Type: Application
    Filed: November 26, 2002
    Publication date: May 29, 2003
    Applicant: GE Medical Systems SA
    Inventors: Lijo Joseph Thandiackal, Denis Perrillat
  • Publication number: 20030081730
    Abstract: It is an X-ray generating apparatus having an X-ray shielding means superior in thermal conductivity. The X-ray generating apparatus comprises an X-ray tube, an X-ray tube container, and a support member which is constructed of an electrically insulating material and which supports the X-ray tube within the X-ray tube container, the X-ray tube container being constituted by a combination of copper alloy plates with lead incorporated therein and a plate of a composite material, the composite material being formed by laminating lead and epoxy laminated glass cloth sheets so as to include an intermediate layer of lead, the X-ray tube container having an aperture (for X-ray emission and containing the X-ray tube so as to prevent the emission of X-ray from any other portion than the aperture.
    Type: Application
    Filed: October 29, 2002
    Publication date: May 1, 2003
    Inventors: Lijo Joseph Thandiackal, Denis Perrillat, Balasubramannian Kandankumarath
  • Publication number: 20030081727
    Abstract: It is an object to provide an X-ray generating apparatus of an integrate type, which permits easy alignment of an X-ray tube and easy insulation against high voltages and which has an X-ray shielding means superior in thermal conductivity. A screw through hole and pin through holes corresponding respectively to a screw hole and plural pin holes formed in an end face of a base portion of an X-ray tube are formed in an abutment face of a bracket against which the end face of the base portion of the X-ray tube comes into abutment, and a screw and plural pins are inserted respectively from the bracket side into the screw hole and plural pin holes in the X-ray tube through the screw through hole and the pin through holes, thereby mounting the X-ray tube to the bracket. The bracket is formed by an integral structure of FR4. An X-ray tube container which receives the X-ray tube therein is constituted by copper alloy plates with lead incorporated therein.
    Type: Application
    Filed: October 29, 2002
    Publication date: May 1, 2003
    Inventors: Balasubramannian Kandankumarath, Biju S. Nathan, Ravindra P. Prabhu, Lijo Joseph Thandiackal
  • Publication number: 20030081729
    Abstract: It is an object to provide an X-ray generating apparatus which permits easy alignment of an X-ray tube and easy insulation against high voltages. A screw through hole and pin through holes corresponding respectively to a screw hole and plural pin holes formed in an end face of a base portion of an X-ray tube are formed in an abutment face of a bracket against which the end face of the base portion of the X-ray tube comes into abutment, and a screw and plural pins are inserted respectively from the bracket side into the screw hole and plural pin holes in the X-ray tube through the screw through hole and the pin through holes, thereby mounting the X-ray tube to the bracket. The bracket is formed by an integral structure of FR4.
    Type: Application
    Filed: October 29, 2002
    Publication date: May 1, 2003
    Inventors: Lijo Joseph Thandiackal, Denis Perrillat