Patents by Inventor Carlos Alberto Saliba

Carlos Alberto Saliba 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).

  • Process for removing accumulated meltable matter in pipes by means of a heated travelling element
    Patent number: 5622570
    Abstract: A process for removing accumulated meltable matter from a pipe includes introducing inside a pipe a cylindrical travelling element or pig made of low density, high elasticity foam. A mixture of reagents which, after a certain period of time will cause a highly exothermic reaction to occur, is introduced inside the pig so that by displacing the pig the meltable deposits within the pipe will melt and will be carried by the pig to a place from which they will be removed together with the pig.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: April 22, 1997
    Assignee: Petroleo Brasileiro S.A. - Petrobras
    Inventors: Paulo Cesar R. Lima, Carmem Silvia D. D. Lobato, Carlos Alberto Saliba