Patents by Inventor Steve E. Coats

Steve E. Coats 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).

  • System for powering an igniter to a level proven to ignite gas
    Patent number: 6521869
    Abstract: A microprocessor-controlled triac switching circuit for an igniter, having line voltage and igniter current input signals to a microprocessor for determining power to the igniter. Upon determining the line voltage, the microprocessor selects from a look-up table a corresponding triac-switching sequence intended to drive the igniter to a power level proven to ignite gas. The igniter current resulting from the switching sequence is fed to the microprocessor, which determines the actual power and an offset value. The offset enables adjustment by shifting sequences, to achieve the pose level at which the igniter is proven to ignite gas.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: February 18, 2003
    Assignee: Emerson Electric Co.
    Inventors: Don E. Donnelly, Jeffrey N. Arensmeier, Steve E. Coats