Patents by Inventor John I. Friesen, Jr.

John I. Friesen, Jr. 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).

  • Aircraft adjustable control stick
    Patent number: 5769363
    Abstract: An adjustable aircraft control stick comprising a vertically-positioned column pivoted about the pitch axis for controlling the elevators and a yoke member pivotally mounted to the upper end of the control column about an axis parallel to the roll axis of the aircraft for control of the ailerons. The yoke member including a series of socket openings positioned longitudinally on the yoke and a hand grip member releasably engageable with any of said sockets to adjust for different arm length pilots.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: June 23, 1998
    Assignee: The Cessna Aircraft Company
    Inventors: Douglas A. Griswold, John I. Friesen, Jr.