Patents by Inventor Mark Y. Chen

Mark Y. Chen 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).

  • Hinged bottom cover for unheading a coke drum
    Patent number: 6989082
    Abstract: An apparatus for removing a bottom cover on a coke drum. A support structure supports at least the coke drum. A vertical actuator has a cover end attached to the bottom cover and a support end attached to the support structure, and is arranged to move the bottom cover vertically in a removal operation of the bottom cover. A rotating actuator has a cover end attached to the bottom cover and a support end attached to the support structure, and is arranged to rotate the bottom cover in a removal operation. A frame assembly having opposing ends is provided, a pivoting end being attached to the bottom cover and a sliding end being slidably mounted. The frame assembly, the vertical actuator and the rotating actuator cooperate to remove the bottom cover in a removal operation.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: January 24, 2006
    Assignee: Foster Wheeler USA Corporation
    Inventors: Allen S. Malsbury, Ronald T. Myszka, Mark Y. Chen, Scott P. Slingerland
  • Hinged bottom cover for unheading a coke drum
    Publication number: 20020175065
    Abstract: An apparatus for removing a bottom cover on a coke drum. A support structure supports at least the coke drum. A vertical actuator has a cover end attached to the bottom cover and a support end attached to the support structure, and is arranged to move the bottom cover vertically in a removal operation of the bottom cover. A rotating actuator has a cover end attached to the bottom cover and a support end attached to the support structure, and is arranged to rotate the bottom cover in a removal operation. A frame assembly having opposing ends is provided, a pivoting end being attached to the bottom cover and a sliding end being slidably mounted. The frame assembly, the vertical actuator and the rotating actuator cooperate to remove the bottom cover in a removal operation.
    Type: Application
    Filed: May 25, 2001
    Publication date: November 28, 2002
    Inventors: Allen S. Malsbury, Ronald T. Myszka, Mark Y. Chen, Scott P. Slingerland