Patents by Inventor Cornelius Hamilton

Cornelius Hamilton 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).

  • Multi-Input Relay Board
    Publication number: 20090243535
    Abstract: Fan relay boards are provided that include terminals configured to receive line power of approximately 115 volts, 208 volts, 230 volts, and 277 volts. The boards are configured to convert the line power to an approximately 24 volt output that is applied to a distribution circuit to select a high, medium, or low fan speed using relays. The boards may be coupled to a control device that designates the fan speed selected by the relays. The boards also may provide an approximately 24 volt power supply to external devices such as electric heaters, valves, and switches.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 1, 2009
    Applicant: Johnson Controls Technology Company
    Inventors: William A. Erdmann, Cornelius Hamilton, Donna Borgman, Leslie A. Fry