Patents by Inventor Kenneth Knight Siebert

Kenneth Knight Siebert 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).

  • Airflow constrictor valve for automotive cylinder heads
    Patent number: 6450142
    Abstract: A cylinder head assembly including a cylinder head with an intake port and a pivot valve disposed within the intake port. The valve is pivotally connected to the intake port such that airflow urges the valve to an open position. The valve also includes a structure for urging the valve toward a closed position.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: September 17, 2002
    Inventor: Kenneth Knight Siebert
  • AIRFLOW CONSTRICTOR VALVE FOR AUTOMOTIVE CYLINDER
    Publication number: 20020083922
    Abstract: A slightly convex plate (1) having one or more fixed shafts (2) on either end so that it can swing back and fourth within an intake port of a cylinder head. The plate also contains one or more counter weights (3) attached to either side of said plate to keep said plate in a vertical position through the use of gravity when no vacuum is present.
    Type: Application
    Filed: January 3, 2001
    Publication date: July 4, 2002
    Inventor: Kenneth Knight Siebert