Patents by Inventor David W. Dupree

David W. Dupree 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).

  • Portable beverage dispensing system
    Patent number: 7267247
    Abstract: A portable beverage dispensing system includes a supply of flat water and a supply of pressurized gaseous carbon dioxide. A first motorless carbonator is configured to receive a portion of the flat water and a portion of the carbon dioxide and to cause a portion of the carbon dioxide to dissolve in the flat water to produce partially carbonated soda. A second motorless carbonator is configured to receive a portion of the partially carbonated soda and a portion of the carbon dioxide and to cause a portion of the carbon dioxide to dissolve in the partially carbonated soda and to produce fully carbonated soda. The system also includes a dispenser for selectively dispensing the fully carbonated soda.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: September 11, 2007
    Inventors: James T. Crunkleton, III, David W. Dupree