Patents by Inventor David Broyan

David Broyan 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 for and method to verify proper operation of a particulate emission detector
    Patent number: 5324344
    Abstract: A system and method are provided to verify proper operation of and to adjust a particulate emission detector in a system including a dust collector bag house. A by-pass apparatus is provided around the dust collector bag house which includes a conduit downstream of the inlet to said dust collector bag house and an outlet in fluid communication with a fluid outlet conduit extending from said dust collector bag house.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: June 28, 1994
    Assignee: Brown & Williamson Tobacco Corporation
    Inventors: David Broyan, Robert T. Lewis