Patents by Inventor Alfredo Levario

Alfredo Levario 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).

  • Flared liner method of securing thermoplastically lined metal pipe
    Publication number: 20060254041
    Abstract: The method of securing the end of an internal thermoplastic liner for a steel pipe, in which a protruding end portion of the liner is heated and expanded and then secured in a manner to minimize interference with the conduction of liquid flowing inside the thermoplastic liner.
    Type: Application
    Filed: March 24, 2006
    Publication date: November 16, 2006
    Inventor: Alfredo Levario
  • Method and a coupler for joining two steel pipes
    Patent number: 7107662
    Abstract: A method and apparatus for coupling together the ends of two steel pipe sections, each of which contains a permeable inner liner, in which not only are the pipe ends held in abutting engagement, but gas contained within the liner of one pipe section is effectively channeled into the liner of the other pipe section.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: September 19, 2006
    Inventor: Alfredo Levario