Patents by Inventor Dominique Malnou

Dominique Malnou 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).

  • Isolating valve
    Patent number: 9140410
    Abstract: An isolating valve includes a body having a canal for the passage of fluid, which is intended to be shut off by upstream and downstream spherical plugs, that can be actuated independently of one another between positions allowing the passage of fluid through the canal and positions of shutting off the canal, and a sealing checker, opening into the canal and between the two spherical plugs. The upstream plug is equipped with an upstream seat of the “simple piston effect” type and has no downstream seat. The downstream plug is equipped with an upstream seat of the “simple piston effect” type and with a downstream seat of the “double piston effect” type.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: September 22, 2015
    Assignee: TOTAL S.A.
    Inventor: Dominique Malnou
  • ISOLATING VALVE
    Publication number: 20140263360
    Abstract: An isolating valve includes a body having a canal for the passage of fluid, which is intended to be shut off by upstream and downstream spherical plugs, that can be actuated independently of one another between positions allowing the passage of fluid through the canal and positions of shutting off the canal, and a sealing checker, opening into the canal and between the two spherical plugs. The upstream plug is equipped with an upstream seat of the “simple piston effect” type and has no downstream seat. The downstream plug is equipped with an upstream seat of the “simple piston effect” type and with a downstream seat of the “double piston effect” type.
    Type: Application
    Filed: October 23, 2012
    Publication date: September 18, 2014
    Applicant: TOTAL S.A.
    Inventor: Dominique Malnou