Patents by Inventor Charles Hardy Ketelhohn

Charles Hardy Ketelhohn 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).

  • Combination speed limiter and transmission interlock system
    Patent number: 6595897
    Abstract: A combination speed limiter and transmission interlock system for an engine-transmission power train that includes an internal combustion engine and a transmission, the power train of the type used to power outboard engines and the like. The system utilizes fewer connections, is less expensive, is expected to be more reliable, utilizes a single housing, is easier to manufacture, and uses fewer components than a power train that utilizes separate speed limiter and transmission interlock modules.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: July 22, 2003
    Assignee: Briggs & Stratton Corporation
    Inventors: Richard A. Dykstra, Charles Hardy Ketelhohn