Patents Assigned to Tenaris Connections AG
  • Threaded pipe with surface treatment
    Patent number: 6971681
    Abstract: A threaded metallic pipe for oil extraction industry has a threaded end portion with treated surface in which the metal surface has a roughness (Ra) comprised of 2.0 ?m and 6.0 ?m, which is covered by a uniform layer (7) of a dry corrosion inhibiting coating and a second uniform layer (8) of dry lubricant coating. Alternatively the layers (8, 9) combined into one uniform layer (9) of a dry corrosion inhibiting coating containing a dispersion of particles of solid lubricant.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: December 6, 2005
    Assignee: Tenaris Connections AG
    Inventors: Diego Dell'Erba, Gabriel E. Carcagno
  • Threaded pipe joint
    Patent number: 6905150
    Abstract: Threaded pipe joint comprising a male element (1) and a female element (2), threaded and provided with respective complementary sealing surfaces, which define, when screwed together, a notch (13) formed on the female element (2) of a predetermined length (X), and a space (7, 8) between the threads of predetermined section (S), forming reservoir to house the joint lubricant, which comes out of the volume between the threads of the female (2) and male (1) elements during the tightening of the joint.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: June 14, 2005
    Assignee: Tenaris Connections AG
    Inventors: Gabriel E. Carcagno, Giuseppe Della Pina, Rita G. Toscano, Antonio Podrini
  • Threaded pipe with surface treatment
    Publication number: 20040113423
    Abstract: A threaded metallic pipe for oil extraction industry has a threaded end portion with treated surface in which the metal surface has a roughness (Ra) comprised of 2.0 &mgr;m and 6.0 &mgr;m, which is covered by a uniform layer (7) of a dry corrosion inhibiting coating and a second uniform layer (8) of dry lubricant coating. Alternatively the layers (8, 9) combined into one uniform layer (9) of a dry corrosion inhibiting coating containing a dispersion of particles of solid lubricant.
    Type: Application
    Filed: October 10, 2003
    Publication date: June 17, 2004
    Applicant: TENARIS CONNECTIONS AG
    Inventors: Diego Dell'Erba, Gabriel E. Carcagno
  • Threaded pipe joint
    Publication number: 20040017080
    Abstract: Threaded pipe joint comprising a male element (1) and a female element (2), threaded and provided with respective complementary sealing surfaces, which define, when screwed together, a notch (13) formed on the female element (2) of a predetermined length (X), and a space (7, 8) between the threads of predetermined section (S), forming reservoir to house the joint lubricant, which comes out of the volume between the threads of the female (2) and male (1) elements during the tightening of the joint.
    Type: Application
    Filed: May 16, 2003
    Publication date: January 29, 2004
    Applicant: TENARIS CONNECTIONS AG
    Inventors: Gabriel E. Carcagno, Giuseppe Della Pina, Rita G. Toscano, Antonio Podrini