Patents by Inventor Keith F. Preston

Keith F. Preston 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).

  • Environment control system for aircraft having interior condensation problem reduction, cabin air quality improvement, fire suppression and fire venting functions
    Patent number: 6491254
    Abstract: An environment control system for a body of an aircraft that provides controlled ventilation of the interior space of an aircraft body, facilitating reduction of volatile organic compounds (VOCs) within cabin air, dehumidifying and reducing moisture condensation and thus corrosion and other moisture related problems within the envelope, allowing increased humidification of cabin air, and allowing suppression of fires within the envelope. The environment control system includes at least a cabin and an envelope. It includes supply means for supplying a flow of dry ventilation air to the aircraft body. An airflow control device is capable of dividing the flow of ventilation air onto an envelope ventilation air stream and a cabin ventilation air stream. An envelope ventilation duct system directs the envelope ventilation air stream into the envelope, and a cabin duct system directs the cabin ventilation air stream into the cabin.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: December 10, 2002
    Assignee: Indoor Air Technologies Inc.
    Inventors: Douglas S. Walkinshaw, Gintautas P. Mitalas, Campbell S. L. McNeil, Keith F. Preston