Patents by Inventor Herman H. Hall, Jr.

Herman H. Hall, Jr. 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).

  • Instantaneous fluid heating device and process
    Patent number: 5784531
    Abstract: Instantaneous fluid heating device and process including an instantaneous fluid heating device which features forced fluid recirculation past/through heating elements/vessel featuring immersible electrical heating elements in a plurality of heating vessels arranged in series with all of said electrical heating elements/vessels being of equal electrical power/volume so as to be equal in overall heating capacity and receiving electricity simultaneously by on/off switching of electrical power via one or more solid state relays responsive to the minutest changes of temperature below/above the set point.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: July 21, 1998
    Inventors: Robert W. Mann, Herman H. Hall, Jr.