Patents by Inventor Pedro M. Pita

Pedro M. Pita 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).

  • Method for distributing cellulosic pulp through a reactor at a constant upward velocity
    Patent number: 5397434
    Abstract: Method for the treatment of cellulosic pulp in which pulp is distributed upward through a vertical reactor using a unique conical distributor and is discharged using a unique dilution method to eliminate plugging. The system is particularly useful for delignifying virgin wood pulps or decolorizing pulps made from waste paper materials.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: March 14, 1995
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Danilo S. Costa, Pedro M. Pita, Vincent L. Magnotta
  • Reactor system for treating cellulosic pulp at a constant upward flow velocity
    Patent number: 5372679
    Abstract: A reactor system is disclosed for the treatment of cellulosic pulp in which pulp is distributed upward through a vertical reactor using a unique conical distributor and is discharged using a unique dilution method to eliminate plugging. The system is particularly useful for delignifying virgin wood pulps or decolorizing pulps made from waste paper materials.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: December 13, 1994
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Danilo S. Costa, Pedro M. Pita, Vincent L. Magnotta