Patents by Inventor Patrick Dumaz

Patrick Dumaz 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).

  • High pressure steam water injector comprising an axial drain
    Patent number: 6595163
    Abstract: The steam injector is characteristic in its high pressure and improved start-up. It uses an axial drain (10) positioned in the centre of the neck (5) downstream from the mixing chamber (4) and inserted in the diffuser (7) for the purpose of narrowing the section of the neck (5) and evacuating a large part of the steam which has not been condensed. The axial drain (10) may be mounted so that it is axially mobile. Application to the water supply for steam generators in pressurized water nuclear reactors.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: July 22, 2003
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Patrick Dumaz, Bertrand Duc
  • High pressure steam water injector comprising an axial drain
    Publication number: 20020162518
    Abstract: The steam injector is characteristic in its high pressure and improved start-up. It uses an axial drain (10) positioned in the centre of the neck (5) downstream from the mixing chamber (4) and inserted in the diffuser (7) for the purpose of narrowing the section of the neck (5) and evacuating a large part of the steam which has not been condensed. The axial drain (10) may be mounted so that it is axially mobile.
    Type: Application
    Filed: May 9, 2002
    Publication date: November 7, 2002
    Inventors: Patrick Dumaz, Bertrand Duc