Patents by Inventor Chris Steffensen

Chris Steffensen 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).

  • Apparatus for heating and cooling at food serving stations
    Patent number: 7665311
    Abstract: Systems and apparatus for heating or cooling food to an appropriate temperature for service using a standard food service container, such as a chafing dish or food cart. A thermally conductive plate has a plurality of Peltier chips attached thereto to drive a temperature difference. The Peltier chips are in thermally conductive contact with a heat exchanger. A heat transfer liquid circulates through tubing in the heat exchanger and a separate radiator, perpetuating the temperature difference at the plate. The heat exchanger and radiator may be spaced apart by a gap. One or more fans may be placed to encourage airflow through the radiator. A coolant reservoir and pump may be included.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: February 23, 2010
    Inventors: Chris Steffensen, Tyler Lyon, Daniel Winegar, Jeffrey Turner
  • Apparatus for heating and cooling at food serving stations
    Publication number: 20080016881
    Abstract: Systems and apparatus for heating or cooling food to an appropriate temperature for service using a standard food service container, such as a chafing dish or food cart. A thermally conductive plate has a plurality of Peltier chips attached thereto to drive a temperature difference. The Peltier chips are in thermally conductive contact with a heat exchanger. A heat transfer liquid circulates through tubing in the heat exchanger and a separate radiator, perpetuating the temperature difference at the plate. The heat exchanger and radiator may be spaced apart by a gap. One or more fans may be placed to encourage airflow through the radiator. A coolant reservoir and pump may be included.
    Type: Application
    Filed: June 28, 2007
    Publication date: January 24, 2008
    Inventors: Chris Steffensen, Tyler Lyon, Daniel Winegar, Jeffrey Turner