Patents by Inventor David P. Witkowski

David P. Witkowski 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).

  • Slotted aircraft wing
    Patent number: 7048228
    Abstract: An aircraft wing includes a leading airfoil element and a trailing airfoil element. At least one slot is defined by the wing during at least one transonic condition of the wing. The slot may either extend spanwise along only a portion of the wingspan, or it may extend spanwise along the entire wingspan. In either case, the slot allows a portion of the air flowing along the lower surface of the leading airfoil element to split and flow over the upper surface of the trailing airfoil element so as to achieve a performance improvement in the transonic condition.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: May 23, 2006
    Assignee: The Boeing Company
    Inventors: John C. Vassberg, Lie-Mine Gea, James D. McLean, David P. Witkowski, Steven E. Krist, Richard L. Campbell
  • Slotted aircraft wing
    Patent number: 7048235
    Abstract: A swept aircraft wing includes a leading airfoil element and a trailing airfoil element. At least one full-span slot is defined by the wing during at least one transonic condition of the wing. The full-span slot allows a portion of the air flowing along the lower surface of the leading airfoil element to split and flow over the upper surface of the trailing airfoil element so as to achieve a performance improvement in the transonic condition.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: May 23, 2006
    Assignee: The Boeing Company
    Inventors: James D. McLean, David P. Witkowski, Richard L. Campbell
  • Slotted aircraft wing
    Publication number: 20040195464
    Abstract: An aircraft wing includes a leading airfoil element and a trailing airfoil element. At least one slot is defined by the wing during at least one transonic condition of the wing. The slot may either extend spanwise along only a portion of the wingspan, or it may extend spanwise along the entire wingspan. In either case, the slot allows a portion of the air flowing along the lower surface of the leading airfoil element to split and flow over the upper surface of the trailing airfoil element so as to achieve a performance improvement in the transonic condition.
    Type: Application
    Filed: October 3, 2003
    Publication date: October 7, 2004
    Inventors: John C. Vassberg, Lie-Mine Gea, James D. McLean, David P. Witkowski, Steven E. Krist, Richard L. Campbell