Patents by Inventor Marcus W. Hagen

Marcus W. Hagen 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: 4622938
    Abstract: A throttle and timing control for a spark ignition internal combustion engine having a fuel/air mixing device and a spark timing device. A first lever is mounted on a pivot on the engine and includes a shaped cam slot a portion of which has a substantially uniform radius about said pivot and a portion of which has specifically non-constant radii about said pivot. A manual control is connected to the lever to actuate the lever about the pivot. A second pivot on the engine has an axis perpendicular to the axis of the first pivot and journals a second lever which controls the timing of the spark ignition. A spherical cam follower on the second lever engages and rolls in the cam slot so as to follow motion of the cam slot while turning the plane of movement A third pivot on the engine is spaced from the other pivots and journals a lever operably connected to the fuel/air metering device. A link interconnects the first and third lever.
    Type: Grant
    Filed: February 14, 1985
    Date of Patent: November 18, 1986
    Assignee: Outboard Marine Corporation
    Inventors: Thomas D. Wenstadt, Marcus W. Hagen