Patents by Inventor Cheryl A. Dzurec

Cheryl A. Dzurec 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).

  • Apparatus and method for enlarging inner diameter of injector for reactor
    Patent number: 10589359
    Abstract: A drill assembly and method is provided for enlarging an injector of a reactor. The drill assembly includes an elongated shaft attached to a piloted drill bit including a pilot portion distal from and extending colinearly with the elongated shaft and a cutting portion proximal the elongated shaft and positioned between the pilot portion and the elongated shaft, wherein the cutting portion includes at least one cutting edge extending radially from a center axis of rotation beyond an outer surface of the pilot portion; and a drive device adapted to rotate the elongated shaft about the axis of rotation. The method includes inserting the pilot portion into an injector; and cutting away a portion of an inner surface of the injector with the cutting portion.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: March 17, 2020
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Christopher Barny, William R. Trousdale, Andrew J. Naprawa, Cheryl A Dzurec, Matt O. Lawrence
  • APPARATUS AND METHOD FOR ENLARGING INNER DIAMETER OF INJECTOR FOR REACTOR
    Publication number: 20180369932
    Abstract: A drill assembly and method is provided for enlarging an injector of a reactor. The drill assembly includes an elongated shaft attached to a piloted drill bit including a pilot portion distal from and extending colinearly with the elongated shaft and a cutting portion proximal the elongated shaft and positioned between the pilot portion and the elongated shaft, wherein the cutting portion includes at least one cutting edge extending radially from a center axis of rotation beyond an outer surface of the pilot portion; and a drive device adapted to rotate the elongated shaft about the axis of rotation. The method includes inserting the pilot portion into an injector; and cutting away a portion of an inner surface of the injector with the cutting portion.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 27, 2018
    Inventors: Christopher Barny, William R. Trousdale, Andrew J. Naprawa, Cheryl A. Dzurec, Matt O. Lawrence