Patents by Inventor James R. Dennis

James R. Dennis 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).

  • Apparatus and method of enhancing the quality of high-moisture materials and separating and concentrating organic and/or non-organic material contained therein
    Patent number: 8372185
    Abstract: The present invention harvests and utilizes fluidized bed drying technology and waste heat streams augmented by other available heat sources to dry feedstock or fuel. This method is useful in many industries, including coal-fired power plants. Coal is dried using the present invention before it goes to coal pulverizers and on to the furnace/boiler arrangement to improve boiler efficiency and reduce emissions. This is all completed in a low-temperature, open-air system. Also included is an apparatus for segregating particulate by density and/or size including a fluidizing bed having a particulate receiving inlet for receiving particulate to be fluidized. This is useful for segregating contaminants like sulfur and mercury from the product stream.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: February 12, 2013
    Assignee: Great River Energy
    Inventors: Charles W. Bullinger, Mark A. Ness, Nenad Sarunac, Edward K. Levy, Richard S. Weinstein, James R. Dennis, Matthew P. Coughlin, John M. Wheeldon