Patents by Inventor Donald L. Stamets

Donald L. Stamets 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).

  • Thermal storage unit and methods for using the same to heat a fluid
    Patent number: 7693402
    Abstract: A thermal storage unit having at least one conduit around which a cast is made is provided. The thermal storage unit uses conventional piping or tubing to create conduits that economically maximize the surface area of flow in contact with the thermal mass by proving multiple passes for the fluid through the cast. This enables the thermal storage unit to economically provide heat storage as well as effective heat delivery and pressure containment for a fluid flowing through the conduit.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: April 6, 2010
    Assignee: Active Power, Inc.
    Inventors: Robert S. Hudson, David E. Perkins, Donald M. Hudson, David J. Beatty, Donald L. Stamets, Joseph F. Pinkerton