Patents by Inventor Jan Michael Brawner

Jan Michael Brawner 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).

  • Twin rotary valves for a four stroke internal combustion engine
    Patent number: 6755171
    Abstract: A rotary valve that includes three sealing blades and four sealing rings. Two on each end. The valve assembly rotates at one half of crank speed, for a (single cylinder four-cycle engine.) This aligns timing of the port in the valve with the port of the cylinder head. This enables intake/exhaust functions. Within the open end of the valve are stationary impeller fins, (rotating at the same speed) provides improved fuel/air mixture and flow characteristics with less polution.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: June 29, 2004
    Inventors: Travis D. Brawner, Jan Michael Brawner