Patents by Inventor Ricardo Augusto Abarca Melo

Ricardo Augusto Abarca Melo 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).

  • Centrifugal pump with configured volute
    Patent number: 6953321
    Abstract: A selectively configured volute for incorporation into a centrifugal pump of the volute type is disclosed for use in processing heavy duty slurries that are characterized by containing particularly large and/or abrasive particulates that are known to degrade the pump casing or pump casing liner. The configured volute of the present invention is particularly suitable for use in connection with the use of an impeller having expelling vanes that aggressively pump out slurry from the seal face of the pump. The configured volute of the present invention provides resistance to wear when processing heavy duty slurries and provides stable flow performance and improved pump performance.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: October 11, 2005
    Assignee: Weir Slurry Group, Inc.
    Inventors: Aleksander S. Roudnev, Ronald J. Bourgeois, Ricardo Augusto Abarca Melo
  • Centrifugal pump with configured volute
    Publication number: 20040126228
    Abstract: A selectively configured volute for incorporation into a centrifugal pump of the volute type is disclosed for use in processing heavy duty slurries that are characterized by containing particularly large and/or abrasive particulates that are known to degrade the pump casing or pump casing liner. The configured volute of the present invention is particularly suitable for use in connection with the use of an impeller having expelling vanes that aggressively pump out slurry from the seal face of the pump. The configured volute of the present invention provides resistance to wear when processing heavy duty slurries and provides stable flow performance and improved pump performance.
    Type: Application
    Filed: December 31, 2002
    Publication date: July 1, 2004
    Inventors: Aleksander S. Roudnev, Ronald J. Bourgeois, Ricardo Augusto Abarca Melo