Patents by Inventor William A. MacPherson

William A. MacPherson 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).

  • Coupler for attachment of sampling tubes to duct detector
    Publication number: 20080022753
    Abstract: A duct detector includes sampling tubes which slidably engage the detector with a fixed orientation to facilitate fluid flow. The tubes have a connector portion and a conduit portion. The connector portion and the conduit portion engage one another with a predetermined orientation.
    Type: Application
    Filed: July 31, 2006
    Publication date: January 31, 2008
    Inventors: William A. MacPherson, James M. Murphy