Patents by Inventor Keith J. Moores

Keith J. Moores 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).

  • Patent number: 4587934
    Abstract: A variable-timing valve actuating mechanism for an internal combustion engine having an axially movable cam shaft, movable by a governor device to a position proportional to engine rpm. A set of dual cams is provided for operating intake and exhaust valves with a uniform profile lobe effective only over an idle to medium rpm range and a non-uniform profile lobe effective only over a medium to maximum rpm range. A timing gear drives the cam shaft and utilizes a spiral spine drive to also advance and retard the cam shaft rotation proportional to the cam shaft axial position. The variable advance/retard action and the non-uniform cam lobe are selected to optimize valve overlap, valve opening angle, and valve timing as a function of rpm.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: May 13, 1986
    Inventor: Keith J. Moores