Patents by Inventor Sergio Cerruti

Sergio Cerruti 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).

  • Integral joint for the connection of two pipes
    Patent number: 6347814
    Abstract: Integral joint of two pipes which comprises a first box element, equipped with an internal two-step thread, situated on the end of a first pipe, a second pin element, equipped with an external two-step thread, situated on the end of a second pipe, two metal-to-metal seals located at both ends and with at least two shoulders arranged at one end and at the centre of the joint respectively.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: February 19, 2002
    Assignee: ENI S.p.A.
    Inventor: Sergio Cerruti
  • Threaded joint for connecting two pipes with a metal to metal seal
    Patent number: 6010163
    Abstract: Integral joint for connecting two pipes, in which from the annular edge of the female pipe an internal flaring with decreasing cross-section extends, which gets engaged, with interference, with a corresponding external counter-flaring provided on the end portion of the male pipe nearby the overhanging back shoulder of the latter, in order to create another tight, all-metal sealing with interference, additionally to the other tight sealing already existing at the front end of said end portion of the male pipe.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: January 4, 2000
    Assignee: AGIP S.p.A.
    Inventor: Sergio Cerruti