Patents by Inventor George Dodan

George Dodan 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: 12553538
    Abstract: A monitoring unit is configured for use on a valve. These configurations may include sensors that can generate data consistent with physical condition of a closure member, like a valve “plug,” when the valve is in service on a process line. Analysis of this data may indicate erosion on the plug that is often due to highly-erosive working fluids or other process (or application) conditions. Signals or alerts from the process control system, or DCS, may alert operators to perform timely maintenance that avoids problems that may arise as a result of physical changes in the valve plug.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: February 17, 2026
    Assignee: Dresser, LLC
    Inventors: Navin Sakthivel, Cyril Vlassoff, Mikhail Anisimov, Stanley Amirthasamy, George Dodan
  • Patent number: 12196341
    Abstract: A closure member is configured for use in a valve. These configurations may include a plug with grooves or “flutes” that extend along its length. Inserts in the flutes may comprise materials, like ceramics, that are different than the material that forms the core or base portion of the plug. These inserts are useful to slow erosion of the device, particularly in the flutes, which form an outwardly-facing surface that is subject to high velocity flow in the valve. This feature can extend service life of the plug, particularly in highly-erosive process fluids, like particle-entrained fluids commonly found in hydrocracking or refining operations.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: January 14, 2025
    Assignee: Dresser, LLC
    Inventors: Cyril Nicolas Vlassoff, George Dodan
  • Patent number: 12181071
    Abstract: A bellows is configured for use on a valve. These configurations may include a corrugated section that is hollow to receive a valve stem therethrough. At its ends, the corrugated section can terminate at adapters. In one implementation, additive manufacturing can construct the bellows as a unitary or monolithic unit, avoiding welds or fasteners that can complicate manufacture of the parts. This techniques can create interfaces between the corrugated section and the adapters that comprises the same material as the adjacent parts.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: December 31, 2024
    Assignee: Dresser, LLC
    Inventors: Cyril Nicolas Vlassof, George Dodan, Donald Stroman Sanders, Mikhail Anisimov, Chad Eric Yates
  • Publication number: 20240209958
    Abstract: A bellows is configured for use on a valve. These configurations may include a corrugated section that is hollow to receive a valve stem therethrough. At its ends, the corrugated section can terminate at adapters. In one implementation, additive manufacturing can construct the bellows as a unitary or monolithic unit, avoiding welds or fasteners that can complicate manufacture of the parts. This techniques can create interfaces between the corrugated section and the adapters that comprises the same material as the adjacent parts.
    Type: Application
    Filed: December 21, 2022
    Publication date: June 27, 2024
    Inventors: Cyril Nicolas Vlassof, George Dodan, Donald Stroman Sanders, Mikhail Anisimov, Chad Eric Yates
  • Publication number: 20240175518
    Abstract: A monitoring unit is configured for use on a valve. These configurations may include sensors that can generate data consistent with physical condition of a closure member, like a valve “plug,” when the valve is in service on a process line. Analysis of this data may indicate erosion on the plug that is often due to highly-erosive working fluids or other process (or application) conditions. Signals or alerts from the process control system, or DCS, may alert operators to perform timely maintenance that avoids problems that may arise as a result of physical changes in the valve plug.
    Type: Application
    Filed: November 29, 2022
    Publication date: May 30, 2024
    Inventors: Navin Sakthivel, Cyril Vlassoff, Mikhail Anisimov, Stanley Amirthasamy, George Dodan
  • Publication number: 20240142003
    Abstract: A closure member is configured for use in a valve. These configurations may include a plug with grooves or “flutes” that extend along its length. Inserts in the flutes may comprise materials, like ceramics, that are different than the material that forms the core or base portion of the plug. These inserts are useful to slow erosion of the device, particularly in the flutes, which form an outwardly-facing surface that is subject to high velocity flow in the valve. This feature can extend service life of the plug, particularly in highly-erosive process fluids, like particle-entrained fluids commonly found in hydrocracking or refining operations.
    Type: Application
    Filed: October 31, 2022
    Publication date: May 2, 2024
    Inventors: Cyril Nicolas Vlassoff, George Dodan
  • Patent number: 8834584
    Abstract: A syngas cooler for use in a gasification system is described that includes a head portion including a plurality of conduit headers. The syngas cooler also includes an annular shell portion including a plurality of conduits, the plurality of conduits configured to be coupled in flow communication with the plurality of conduit headers. The syngas cooler also includes a quench portion configured to remove particulates entrained in a flow of syngas flowing through the syngas cooler. The head portion and the shell portion are configured to be coupled together with a circumferential seam weld.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: September 16, 2014
    Assignee: General Electric Company
    Inventors: Lien-Yan Chen, James Michael Storey, Yasir H. Abbasi, George Dodan
  • Publication number: 20110072721
    Abstract: A syngas cooler for use in a gasification system is described that includes a head portion including a plurality of conduit headers. The syngas cooler also includes an annular shell portion including a plurality of conduits, the plurality of conduits configured to be coupled in flow communication with the plurality of conduit headers. The syngas cooler also includes a quench portion configured to remove particulates entrained in a flow of syngas flowing through the syngas cooler. The head portion and the shell portion are configured to be coupled together with a circumferential seam weld.
    Type: Application
    Filed: September 28, 2009
    Publication date: March 31, 2011
    Inventors: Lien-Yan Chen, James Michael Storey, Yasir H. Abbasi, George Dodan
  • Publication number: 20100031570
    Abstract: A method and system for an integrated gasifier and syngas cooler are provided. The system includes a gasifier including a reaction chamber, a syngas cooler integrally formed with the gasifier and including at least one heat exchanger element, and a transition portion integrally formed with the reaction chamber and the syngas cooler and extending therebetween, the transition portion further including a throat extending between the reaction chamber and the syngas cooler, the transition portion further including a heat exchanger circumscribing the throat.
    Type: Application
    Filed: August 7, 2008
    Publication date: February 11, 2010
    Inventors: Wei Chen, George Dodan, Robert Henri Gauthier, James Michael Storey