Patents by Inventor Marcilio Paiva Prado

Marcilio Paiva Prado 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).

  • Deaeration of water and other liquids
    Patent number: 6981997
    Abstract: Liquid such as water is deaerated by dissolving stripping gas such as carbon dioxide into the water while maintaining pressure, reducing the pressure, and then feeding the liquid into a vessel wherein a gas space is maintained over said water, wherein the pressure of said gas space is less than the pressure upstream, and separately withdrawing degassed liquid and evolved gas from said vessel at rates which maintain the pressure of said gas space below the pressure upstream of said means.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: January 3, 2006
    Assignee: Praxair Technology, Inc.
    Inventors: William Robert Williams, Marcilio Paiva Prado, Luis Claudio Dias Nogueira