Patents by Inventor Carl Hugh Schell

Carl Hugh Schell 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 and method for controlling a ventilation unit of a vehicle
    Patent number: 8092285
    Abstract: A sensor system (24) for controlling a ventilation unit (22) of a vehicle (20) includes a sensitivity selector (70) for enabling a user to select a setting (76) corresponding to an air quality threshold (94, 98), and an air quality sensor (62) proximate an exterior of the vehicle (20) for detecting an air quality parameter (71). A controller (66) is responsive to the selector (70) and the sensor (62), and is in communication with an inlet air valve (32) of the ventilation unit (22). A method (118) of operating the sensor system (24) entails receiving a current value of the air quality parameter (71) at the controller (66) for comparison with the air quality threshold (94, 98). The controller (66) generates a switch signal (74) in response to the comparison for adjusting the inlet air valve (32) between an outside air mode (44) and a recirculation mode (46).
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: January 10, 2012
    Assignee: Calsonickansei North America, Inc.
    Inventors: Gursaran Das Mathur, Carl Hugh Schell