Patents by Inventor Timothy A. Bartrand

Timothy A. Bartrand 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).

  • Method and apparatus for controlling macrofoulers in on-demand water conduits
    Patent number: 5948279
    Abstract: In general terms, the present invention includes an apparatus for controlling macrofoulers and larvae thereof in an on-demand water conduit, and a method for controlling macrofoulers and larvae thereof in a water conduit having an intake opening. The apparatus comprises generally: a water conduit having an intake opening, the water conduit adapted to conduct a flow of water on demand; and a vacuum device adapted to receive water, the vacuum device adapted to produce oxygen-depleted water from the received water, the vacuum device also adapted to provide a flow of the oxygen-depleted water to the water conduit when no demand exists for a flow of water through the water conduit. The invention also includes a method for controlling macrofoulers and larvae thereof in a water conduit having an intake opening, such as through use of the apparatus of the present invention.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: September 7, 1999
    Assignee: Ohio University
    Inventors: Tiao J. Chang, Timothy A. Bartrand