Patents by Inventor Jeffrey W. Yarroll

Jeffrey W. Yarroll 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).

  • Airflow control valve for a clean room
    Patent number: 6192922
    Abstract: An airflow control valve for a clean room having a duct section with a damper positioned within the duct. The damper being capable of an adjustment from an open position to a closed position. The opening and closing of the duct is accomplished through a magnetic coupling such that the duct can remain sealed during operation. The airflow control valve includes a sensor for measuring the airflow rate, so that the duct can be adjusted to maintain one or more predetermined flow rate set-points.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: February 27, 2001
    Assignee: Synetics Solutions Inc.
    Inventors: Bruce S. MacGibbon, Mark C. Wolochuk, Lee I. Wolochuk, Christopher P. Sirovy, James F. LeBaron, Jeffrey W. Yarroll