Patents by Inventor Roy Kaywood

Roy Kaywood 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).

  • Dynamic valve timing adjustment mechanism for internal combustion engines
    Patent number: 7140335
    Abstract: A cam phaser is disclosed for adjusting the angular position of a camshaft relative to a crankshaft. In a first embodiment, a rotatable camshaft has an interior passageway and at least one cam operative to effect actuation of an engine valve. A first drive member is connectable to the crankshaft for rotational movement therewith. The first drive member is independently rotatably associated with the camshaft. A piston member is axially moveably disposed within the camshaft interior passageway and associated with the camshaft for rotation therewith. The piston member is further associated with the first drive member for rotation therewith and axial movement relative thereto. Axial movement of the piston member effects a change in the angular position of the first drive member. In a second embodiment, a rotatable tubular member has an interior passageway.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: November 28, 2006
    Assignee: Kaymor, LLC
    Inventors: Dale Moretz, Roy Kaywood
  • Dynamic valve timing adjustment mechanism for internal combustion engines
    Publication number: 20060060159
    Abstract: A cam phaser is disclosed for adjusting the angular position of a camshaft relative to a crankshaft. In a first embodiment, a rotatable camshaft has an interior passageway and at least one cam operative to effect actuation of an engine valve. A first drive member is connectable to the crankshaft for rotational movement therewith. The first drive member is independently rotatably associated with the camshaft. A piston member is axially moveably disposed within the camshaft interior passageway and associated with the camshaft for rotation therewith. The piston member is further associated with the first drive member for rotation therewith and axial movement relative thereto. Axial movement of the piston member effects a change in the angular position of the first drive member. In a second embodiment, a rotatable tubular member has an interior passageway.
    Type: Application
    Filed: September 17, 2004
    Publication date: March 23, 2006
    Inventors: R. Moretz, Roy Kaywood