Patents by Inventor Jean-Pierre Davier

Jean-Pierre Davier 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).

  • Continuous decanter for processing nuclear products
    Patent number: 5494579
    Abstract: A continuous decanter assembly suitable for processing nuclear materials comprises a mechanical assembly for driving a decanter bowl and an Archimedean screw. Sealing structure is provided to enable the decanter bowl and screw to be disconnected from the mechanical assembly and accessed by an operator without risk of nuclear contamination.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: February 27, 1996
    Assignee: Robatel
    Inventors: Michel Robatel, Alain Fraux, Jean-Pierre Davier
  • Centrifugal machine with retractable supply spout
    Patent number: 4869713
    Abstract: In order to dispense with any deformable protective bellows element in a centrifugal machine, the connection between the fixed supply pipe and the retractable pouring spout is disposed inside the containment envelope, while the spout with its support sleeve and its control mechanism are carried by a removable extraction stopper.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: September 26, 1989
    Assignee: Robatel S.L.P.I.
    Inventor: Jean-Pierre Davier
  • Centrifugal decanters of the pendulum type
    Patent number: 4702625
    Abstract: In order to limit the horizontal displacement of the rotating assembly of the decanter at transitory speeds consecutive for example to an earthquake or other outside disturbance, a second series of shock absorbers is provided, disposed about the conventional shock absorbers and interposed, like the latter, between the bearing and the fixed frame, the operational characteristics of the shock absorbers of the two series being, of course, different so that those of the second series do not disturb the normal role of those of the first series.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: October 27, 1987
    Assignee: Robatel Slpi
    Inventor: Jean-Pierre Davier