Patents by Inventor Daniel R. Isham

Daniel R. Isham 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).

  • Spark plug connector and ignition coil module for engine ignition system
    Patent number: 3935852
    Abstract: A module for use in the ignition system of a spark ignited engine combines in one unit a spark plug connector or cap and an ignition coil for converting low voltage current changes into the high voltage pulses required for firing the associated plug, the module, therefore, eliminating the need for a separate high-tension conductor of substantial length between the ignition coil and the spark plug. The module is mounted to an engine shroud directly outboard of the spark plug so as to electrically cooperate with the plug while nevertheless not relying on the plug for its structural support.
    Type: Grant
    Filed: May 20, 1974
    Date of Patent: February 3, 1976
    Assignee: R. E. Phelon Company, Inc.
    Inventors: John J. Donovan, Daniel R. Isham