Patents by Inventor Chun Wai Choi

Chun Wai Choi 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: 20140183026
    Abstract: The present technology is generally directed to systems and methods for improving quenched coke recovery. More specifically, some embodiments are directed to systems and methods utilizing one or more of a screen, barrier, or reflector panel to contain or redirect coke during or after quenching. In a particular embodiment, a quench car system for containing coke includes a quench car having a base, a plurality of sidewalls, and a top portion. The system can further include a permeable barrier covering at least a portion of the top of the quench car, wherein the permeable barrier has a plurality of apertures therethrough.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: SunCoke Technology and Development LLC.
    Inventors: John Francis Quanci, Bradley Thomas Rodgers, Khambath Vichitvongsa, Chun Wai Choi, Matt William Gill
  • Publication number: 20140182195
    Abstract: The present technology describes various embodiments of methods and systems for improved coke quenching. More specifically, some embodiments are directed to methods and systems for improving the coke quenching process by partially cracking coke before it is quenched. In one embodiment, coke is partially cracked when placed in horizontal communication with one or more uneven surfaces. In another embodiment, a coke loaf is partially broken when dropped a vertical distance that is less than the height of the coke loaf. In another embodiment, a mass of coke is partially broken when first placed in vertical communication with one or more uneven surfaces and then placed in horizontal communication with the same or different one or more uneven surfaces. In some embodiments, the one or more uneven surfaces may be mounted to a coke oven, train car, hot car, quench car, or combined hot car/quench car.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: SUNCOKE TECHNOLOGY AND DEVELOPMENT LLC.
    Inventors: John Francis Quanci, John Shannon Essman, James Eric Bond, Khambath Vichitvongsa, Chun Wai Choi
  • Publication number: 20140183023
    Abstract: The present technology is generally directed to systems and methods for controlling air distribution in a coke oven. In a particular embodiment, a coke oven air distribution system comprises an oven chamber having an oven floor configured to support a coal bed, a plurality of sidewalls extending upward from the oven floor, and an oven crown covering a top portion of the oven chamber. The air distribution system further includes an air inlet positioned above the oven floor and a distributor proximate to the inlet. The inlet is configured to introduce air into the oven chamber and the distributor is configured to at least one of preheat, redirect, or spread air within the oven chamber.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: SUNCOKE TECHNOLOGY AND DEVELOPMENT LLC.
    Inventors: John Francis Quanci, Mark Anthony Ball, Chun Wai Choi, Rajat Kapoor
  • Publication number: 20140183024
    Abstract: The present technology is generally directed to non-perpendicular connections between coke oven uptakes and a hot common tunnel, and associated systems and methods. In some embodiments, a coking system includes a coke oven and an uptake duct in fluid communication with the coke oven. The uptake duct has an uptake flow vector of exhaust gas from the coke oven. The system also includes a common tunnel in fluid communication with the uptake duct. The common tunnel has a common flow vector and can be configured to transfer the exhaust gas to a venting system. The uptake flow vector and common flow vector can meet at a non-perpendicular interface to improve mixing between the flow vectors and reduce draft loss in the common tunnel.
    Type: Application
    Filed: March 14, 2013
    Publication date: July 3, 2014
    Inventors: Ung-Kyung Chun, Chun Wai Choi, Milos Kaplarevic, Rajat Kapoor, John Francis Quanci