Patents by Inventor Libero Trapletti

Libero Trapletti 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).

  • Highly versatile fluid-actuated valve control actuator
    Patent number: 6173740
    Abstract: A fluid-actuated valve control actuator, comprising a body in which two mutually opposite pistons are accommodated, each piston being provided with a rack and being adapted to engage a shaft for actuating a stem of a valve, wherein an end of the actuation shaft that lies opposite to an end adapted to engage the stem of valve is octagonal for engagement with an indicator for indicating the opening/closure of the valve.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: January 16, 2001
    Assignee: Air Torque S.p.A.
    Inventors: Antonio Marinoni, Ignazio Paris, Santo Rota, Libero Trapletti
  • Pneumatic actuator
    Patent number: D494659
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: August 17, 2004
    Assignee: Air Torque S.p.A.
    Inventors: Antonio Marinoni, Ignazio Paris, Rota Santo, Libero Trapletti