Patents by Inventor David Ostling

David Ostling 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).

  • Combustion engine valve system
    Patent number: 7287496
    Abstract: A valve system for a combustion engine that includes at least one combustion chamber is disclosed. The combustion chamber includes an intake port and an exhaust port. The valve system includes cylindrical valve shaft, the cylindrical valve shaft having a cylindrical surface, a central axis along the cylindrical valve shaft and containing at least two recessed areas, the recessed areas being at one hundred eighty degrees to one another along the axis of the valve shaft, the recessed areas extending approximately ninety degrees about the axis and along the cylindrical surface, or about 25 percent of the surface.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: October 30, 2007
    Inventor: David Ostling
  • Combustion engine valve system
    Patent number: 7089893
    Abstract: A valve system for a combustion engine that includes at least one combustion chamber is disclosed. The combustion chamber includes an intake port and an exhaust port. The valve system includes cylindrical valve shaft, the cylindrical valve shaft having a cylindrical surface, a central axis along the cylindrical valve shaft and containing at least two recessed areas, the recessed areas being at one hundred eighty degrees to one another along the axis of the valve shaft, the recessed areas extending approximately ninety degrees about the axis and along the cylindrical surface, or about 25 percent of the surface.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: August 15, 2006
    Inventor: David Ostling