Patents by Inventor Chris B. Check

Chris B. Check 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).

  • Method and apparatus for determining the efficiency of an air preconditioning module
    Patent number: 6505502
    Abstract: A method and apparatus is provided for determining the efficiency of an air preconditioning module having an energy transfer matrix disposed between a supply air flow to a building, and a return air flow from the building. In particular, a predetermined relationship is determined between pressure drop across measured across the matrix and the efficiency of the matrix.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: January 14, 2003
    Assignee: Greenheck Fan Corp.
    Inventors: Kyle A. Brownell, Chris B. Check
  • Direct gas-fired heating and ventilation system with passive control damper
    Patent number: 5915960
    Abstract: A gas-fired heating and ventilation system includes a blower which draws air through a recirculation damper from a building and through a direct gas-fired burner from a fresh air inlet. A passive control damper is mounted to bypass air around the burner and to thereby regulate the air flow through the burner for optimum combustion over a wide range of operating conditions.
    Type: Grant
    Filed: October 13, 1997
    Date of Patent: June 29, 1999
    Assignee: Greenheck Fan Corporation
    Inventors: Chris B. Check, Jay J. Schmidt, Bruce L. Knieriem
  • Ventilation system for conveyor oven
    Patent number: 5673681
    Abstract: A ventilation system for a single or stacked conveyor ovens includes an exhaust canopy which extends across the top of the ovens and defines exhaust channels positioned above the conveyor openings on opposite sides of the ovens. A make-up air system delivers make-up air beneath each conveyor opening where it is directed upward through an air curtain nozzle to produce an air stream that directs cooking gases emanating from the conveyor openings upward and into the exhaust channels.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: October 7, 1997
    Assignee: Greenheck Fan Corporation
    Inventors: Emery W. Neitzel, Chris B. Check, Jay J. Bauman