Patents by Inventor David J. Schlottenmier

David J. Schlottenmier 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).

  • Patent number: 5429178
    Abstract: An electro-mechanical, dual tube and plug device for on-line monitoring of performance losses due to reduced conductivity of a heat exchanger resulting from micro-bio fouling of the surfaces of said heat exchanger/condenser and for detecting change of heat transfer resistance of individual heat transfer tubes. The dual tube and plug assembly includes a first flow assembly tube and a second temperature assembly tube attached to the discharge end of a heat exchanger for providing accurate measurement of temperature and cooling water flow. The first flow assembly tube includes a tube having an inner chamber, including a flow sensor comprising a paddle wheel and a sensor and a temperature sensor for measuring discharge water temperature. The second temperature assembly tube plugs the inlet and the outlet of a heat transfer tube immediately adjacent to the flow assembly tube and includes a plurality of spring loaded temperature sensors in the plugged empty heat transfer tube.
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: July 4, 1995
    Assignee: Electric Power Research Institute, Inc.
    Inventors: John F. Garey, David J. Schlottenmier, Murray F. Feller