Patents by Inventor Riccardi Valter

Riccardi Valter 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).

  • Metal seal for ball valves and ball valve comprising said seal
    Patent number: 8646751
    Abstract: A metal seal for valves of the ball type, the metal seal including a rigid annular body including a thickness in the longitudinal direction, and an annular lip having a front surface for relative contact with a surface of the ball, wherein said front surface for making relative contact comprises inset radial grooves.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: February 11, 2014
    Assignee: Cesare Bonetti S.p.A.
    Inventor: Riccardi Valter
  • Metal Seal for Ball Valves and Ball Valve Comprising Said Seal
    Publication number: 20110127457
    Abstract: A metal seal for valves of the ball type, the metal seal including a rigid annular body including a thickness in the longitudinal direction, and an annular lip having a front surface for relative contact with a surface of the ball, wherein said front surface for making relative contact comprises inset radial grooves.
    Type: Application
    Filed: November 30, 2010
    Publication date: June 2, 2011
    Applicant: Cesare Bonetti, S.p.A
    Inventor: Riccardi Valter