Patents by Inventor Steve R. Hoglund

Steve R. Hoglund 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).

  • Two terminal line voltage thermostat
    Patent number: 5456407
    Abstract: A two terminal line voltage thermostat includes a switch which effectively connects line voltage to a heater load. The entire process is controlled by an integrated circuit microcontroller which is powered by a rectified voltage from a transformer secondary connected to a primary which is in series with the heater load. Backup battery power is provided to maintain limited functions of the microcontroller in the event of overall power loss. The microcontroller is programmed to meet the temperature sensing and control requirements specific to a two terminal electric baseboard heating installation.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: October 10, 1995
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Kevin J. Stalsberg, Jim E. Ingalls, Steve R. Hoglund