Patents by Inventor Rafiqul Khan

Rafiqul Khan 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).

  • Publication number: 20230349551
    Abstract: Disclosed herein are systems, apparatuses, and methods for using a sensed combustion zone temperature to continuously control combustion of a first (main) gas within an enclosed combustor. The combustor is in fluid communication with a first gas line carrying the first gas, a second gas line independent of the first gas line carrying a second (assist) gas having a higher heating value than the first gas, and air dampers providing draft or assist air. The first gas may be vapors from a production source or tank. A computer control system monitors the combustion zone temperature of the enclosed combustor as sensed by a sensor in electronic communication with the computer control system and controls the combustion zone temperature by changing a condition of a first gas line valve of the first gas line, a second gas line valve of the second gas line, and the air dampers.
    Type: Application
    Filed: June 27, 2023
    Publication date: November 2, 2023
    Inventors: Rafiqul Khan, Herman C. Hatfield, II, Ankur D. Jariwala, Gary W. Sams
  • Patent number: 11725813
    Abstract: Disclosed herein are systems, apparatuses, and methods for using a sensed combustion zone temperature to continuously control combustion of a first (main) gas within an enclosed combustor. The combustor is in fluid communication with a first gas line carrying the first gas, a second gas line independent of the first gas line carrying a second (assist) gas having a higher heating value than the first gas, and air dampers providing draft or assist air. The first gas may be vapors from a production source or tank. A computer control system monitors the combustion zone temperature of the enclosed combustor as sensed by a sensor in electronic communication with the computer control system and controls the combustion zone temperature by changing a condition of a first gas line valve of the first gas line, a second gas line valve of the second gas line, and the air dampers.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: August 15, 2023
    Assignee: CAMERON INTERNATIONAL CORPORATION
    Inventors: Rafiqul Khan, Herman C. Hatfield, II, Ankur D. Jariwala, Gary W. Sams
  • Publication number: 20190203933
    Abstract: Disclosed herein are systems, apparatuses, and methods for using a sensed combustion zone temperature to continuously control combustion of a first (main) gas within an enclosed combustor. The combustor is in fluid communication with a first gas line carrying the first gas, a second gas line independent of the first gas line carrying a second (assist) gas having a higher heating value than the first gas, and air dampers providing draft or assist air. The first gas may be vapors from a production source or tank. A computer control system monitors the combustion zone temperature of the enclosed combustor as sensed by a sensor in electronic communication with the computer control system and controls the combustion zone temperature by changing a condition of a first gas line valve of the first gas line, a second gas line valve of the second gas line, and the air dampers.
    Type: Application
    Filed: January 4, 2018
    Publication date: July 4, 2019
    Inventors: Rafiqul Khan, Herman C. Hatfield, II, Ankur D. Jariwala, Gary W. Sams
  • Patent number: 9751027
    Abstract: A method and system for controlling an interface emulsion layer within an oil treatment vessel includes injecting a water flow through a plurality of radial eductors arranged about a radial eductor manifold located in the brine water layer. Each radial eductor is oriented vertically to the radial eductor manifold and the horizontal axis of the oil treatment vessel. The water flow through the plurality of radial eductors causes a swirling flow pattern in a volume of water around each radial eductor that is effective for promoting a collapse of the interface emulsion layer. The water flow through each radial eductor, which may be a recycled water flow, may be in a range of about 1 to 5 feet per minute.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: September 5, 2017
    Assignee: Cameron International Corporation
    Inventors: Rafiqul Khan, Joseph Min-Hsiun Lee, Gary W. Sams
  • Patent number: 9422484
    Abstract: A method and system for controlling an interface emulsion layer and mud layer within a desalter vessel includes injecting a water flow through a plurality of nozzles arranged about a piping circuit located in the brine water layer. Each nozzle is oriented toward an interior space of the desalter vessel and is arranged oblique to the piping circuit. The water flow through the plurality of nozzles causes a horizontal and vertical rotation of a volume of water that is effective for suspending solids in the water and promoting a collapse of the interface emulsion layer. The water velocity through each nozzle, which may be a recycled water flow, is preferably in a range of 1 to 3 fpm and each nozzle is preferably oriented at an angle of about 15° and 60° in a horizontal plane and a downward angle of about 15° and 60° in a vertical plane.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: August 23, 2016
    Assignee: Cameron International Corporation
    Inventors: Ronald D. Hypes, Jaime J. Castro, Francisco E. Vera, Marcus D. Sprenkel, Rafiqul Khan
  • Publication number: 20160158669
    Abstract: A method and system for controlling an interface emulsion layer within an oil treatment vessel includes injecting a water flow through a plurality of radial eductors arranged about a radial eductor manifold located in the brine water layer. Each radial eductor is oriented vertically to the radial eductor manifold and the horizontal axis of the oil treatment vessel. The water flow through the plurality of radial eductors causes a swirling flow pattern in a volume of water around each radial eductor that is effective for promoting a collapse of the interface emulsion layer. The water flow through each radial eductor, which may be a recycled water flow, is preferably in a range of 1 to 5 feet per minute.
    Type: Application
    Filed: February 18, 2016
    Publication date: June 9, 2016
    Inventors: Rafiqul Khan, Joseph Min-Hsiun Lee, Gary W. Sams
  • Patent number: 9115316
    Abstract: A method and system for controlling an interface emulsion layer and mud layer within a desalter vessel includes injecting a water flow through a plurality of nozzles arranged about a piping circuit located in the brine water layer. Each nozzle is oriented toward an interior space of the desalter vessel and is arranged oblique to the piping circuit. The water flow through the plurality of nozzles causes a horizontal and vertical rotation of a volume of water that is effective for suspending solids in the water and promoting a collapse of the interface emulsion layer. The water velocity through each nozzle, which may be a recycled water flow, is preferably in a range of 1 to 3 fpm and each nozzle is preferably oriented at an angle of about 15° and 60° in a horizontal plane and a downward angle of about 15° and 60° in a vertical plane.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: August 25, 2015
    Assignee: Cameron International Corporation
    Inventors: Ronald D. Hypes, Jaime J. Castro, Francisco E. Vera, Marcus D. Sprenkel, Rafiqul Khan
  • Publication number: 20140110220
    Abstract: A method and system for controlling an interface emulsion layer and mud layer within a desalter vessel includes injecting a water flow through a plurality of nozzles arranged about a piping circuit located in the brine water layer. Each nozzle is oriented toward an interior space of the desalter vessel and is arranged oblique to the piping circuit. The water flow through the plurality of nozzles causes a horizontal and vertical rotation of a volume of water that is effective for suspending solids in the water and promoting a collapse of the interface emulsion layer. The water flow through each nozzle, which may be a recycled water flow, is preferably in a range of 1 to 3 fpm and each nozzle is preferably oriented at an angle of about 15° and 60° in a horizontal plane and a downward angle of about 15° and 60° in a vertical plane.
    Type: Application
    Filed: December 23, 2013
    Publication date: April 24, 2014
    Applicant: Cameron International Corporation
    Inventors: Ronald D. Hypes, Jaime J. Castro, Francisco E. Vera, Marcus D. Sprenkel, Rafiqul Khan
  • Publication number: 20130083620
    Abstract: A method and system for controlling an interface emulsion layer and mud layer within a desalter vessel includes injecting a water flow through a plurality of nozzles arranged about a piping circuit located in the brine water layer. Each nozzle is oriented toward an interior space of the desalter vessel and is arranged oblique to the piping circuit. The water flow through the plurality of nozzles causes a horizontal and vertical rotation of a volume of water that is effective for suspending solids in the water and promoting a collapse of the interface emulsion layer. The water flow through each nozzle, which may be a recycled water flow, is preferably in a range of 1 to 3 fpm and each nozzle is preferably oriented at an angle of about 15° and 60° in a horizontal plane and a downward angle of about 15° and 60° in a vertical plane.
    Type: Application
    Filed: September 29, 2011
    Publication date: April 4, 2013
    Inventors: Ronald D. Hypes, Jaime J. Castro, Francisco E. Vera, Marcus D. Sprenkel, Rafiqul Khan
  • Publication number: 20060260012
    Abstract: The present disclosure provides methods for Agrobacterium-mediated transformation of soybean cells or tissue and regeneration of the transformed cells or tissue into transformed plants. The methods may be used for transforming many soybean cultivars.
    Type: Application
    Filed: June 17, 2003
    Publication date: November 16, 2006
    Inventor: Rafiqul Khan
  • Publication number: 20040034889
    Abstract: The present disclosure provides methods for Agrobacterium-mediated transformation of soybean cells or tissue and regeneration of the transformed cells or tissue into transformed plants. The methods may be used for transforming many soybean cultivars.
    Type: Application
    Filed: June 17, 2003
    Publication date: February 19, 2004
    Applicant: Syngenta Participations AG
    Inventor: Rafiqul Khan