Patents by Inventor Andre E. Minkiewicz

Andre E. Minkiewicz 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).

  • Apparatus for automatic welding of bevelled tubes
    Patent number: 4330074
    Abstract: In the welding of tubes with bevelled ends without heels or root-faces, all the weldings beads are made from the outside of the tubes with the tubes being in contact with local gap not exceeding 2 mm. The first and second welding beads are made both by the up-hill method and the down-hill method with the axis of the welding torches at the same inclination to the normal or the radius of the pipe and the accuracy of welding is improved by the use of mechanical guiding means for the welding means comprising at least one roller which bears on the bevelled ends of the tubes adjacent the welding zone.
    Type: Grant
    Filed: January 23, 1980
    Date of Patent: May 18, 1982
    Assignees: Compagnie Francaise des Peteroles, Etudes Petrolieres Marines
    Inventors: Andre E. Minkiewicz, Norbert Poirier
  • Method and apparatus for automatic welding of bevelled tubes
    Patent number: 4213555
    Abstract: In the welding of tubes with bevelled ends without heels or root-faces, all the weldings beads are made from the outside of the tubes with the tubes being in contact with local gap not exceeding 2 mm. The first and second welding beads are made both by the up-hill method and the down-hill method with the axis of the welding torches at the same inclination to the normal or the radius of the pipe and the accuracy of welding is improved by the use of mechanical guiding means for the welding means comprising at least one roller which bears on the bevelled ends of the tubes adjacent the welding zone.
    Type: Grant
    Filed: March 31, 1978
    Date of Patent: July 22, 1980
    Assignee: Compagnie Francaise des Petroles
    Inventors: Andre E. Minkiewicz, Norbert Poirier