Patents by Inventor Nelson N.S. Chang

Nelson N.S. Chang 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).

  • Publication number: 20100001530
    Abstract: A multiple hydro turbine power concept, basically an efficient hydrokinetic (energy by the movement of water) energy conversion system comprising a shrouded stage multiple turbines. Mechanical power is applied directly through a speed increaser to a generator. The water for multiple turbines discharges throughout a group of bail jet nozzles in the low pressure region behind the cup. The accelerated flow in the nozzle pushes the turbine directly driving an electrical generator.
    Type: Application
    Filed: August 14, 2009
    Publication date: January 7, 2010
    Inventor: Nelson N.S. Chang