Patents by Inventor Zephyrino L. Machado Filho

Zephyrino L. Machado Filho 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).

  • Equipment for the interconnection of two lines to allow running of pigs
    Patent number: 5437302
    Abstract: A device is provided for the interconnection of two flexible flowlines extending between a subsea production station and a surface facility to allow running of a pig from one line to another. The device is a modular crossover apparatus which includes a control valve connected between two curved pipelines and a pair of substantially Y-shaped connections inserted in the flowlines respectively with ends of the curved pipelines remote from the control valve connected to the connections.
    Type: Grant
    Filed: August 3, 1993
    Date of Patent: August 1, 1995
    Assignee: Petroleo Brasileiro S.A. - PETROBRAS
    Inventors: Jose Eduardo M. Da Silva, Antonio Carlos F. Lino, Zephyrino L. Machado Filho, Marcelo Jose B. Teixeira