Patents by Inventor Denis Chatain

Denis Chatain 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).

  • Device and method for extrusion of a solid body
    Patent number: 9873214
    Abstract: The extrusion device of a solid film comprises a cell provided with an input opening of a material designed to form the solid film, and an output opening of the solid film from the cell. The device comprises a first heat exchanger for applying a first temperature to the output opening and a second heat exchanger for applying a second temperature in a first zone of the cell distinct from the output opening and a control circuit imposing first and second sets of first and second temperatures. The first set enables a volume of the material in solid phase to be formed. The second set enables a temperature gradient to be generated in the volume so as to generate a pressure forcing extrusion of the solid film via the output opening.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: January 23, 2018
    Assignee: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Denis Chatain, Jean-Paul Perin, Marc Chichoux
  • DEVICE AND METHOD FOR EXTRUSION OF A SOLID BODY
    Publication number: 20140008829
    Abstract: The extrusion device of a solid film comprises a cell provided with an input opening of a material designed to form the solid film, and an output opening of the solid film from the cell. The device comprises a first heat exchanger for applying a first temperature to the output opening and a second heat exchanger for applying a second temperature in a first zone of the cell distinct from the output opening and a control circuit imposing first and second sets of first and second temperatures. The first set enables a volume of the material in solid phase to be formed. The second set enables a temperature gradient to be generated in the volume so as to generate a pressure forcing extrusion of the solid film via the output opening.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 9, 2014
    Inventors: Denis CHATAIN, Jean-Paul PERIN, Marc CHICHOUX
  • Precision ball joint
    Patent number: 8025576
    Abstract: The joint comprises a ball (4) held between two seats (5 and 6) of the members (1, 2) to be joined, and it further comprises fittings (7, 8) bound to the members (1, 2) respectively, connected together through an intermediate jointed ring (12). A spring (13) maintains the contact between the ball and the seats. A rim (15) of the ring retains the ball (4) in case of disjunction. The ball (4) provides large accuracy in the position of the centre of rotation and the remainder of the joint maintains cohesion of the assembly.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: September 27, 2011
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Didier Brisset, Gaël Paquignon, Jean-Marie David, Gilles Diolez, Jean-Paul Perin, Denis Chatain
  • Precision ball joint
    Publication number: 20090129855
    Abstract: The joint comprises a ball (4) held between two seats (5 and 6) of the members (1, 2) to be joined, and it further comprises fittings (7, 8) bound to the members (1, 2) respectively, connected together through an intermediate jointed ring (12). A spring (13) maintains the contact between the ball and the seats. A rim (15) of the ring retains the ball (4) in case of disjunction. The ball (4) provides large accuracy in the position of the centre of rotation and the remainder of the joint maintains cohesion of the assembly.
    Type: Application
    Filed: June 9, 2006
    Publication date: May 21, 2009
    Inventors: Didier Brisset, Gael Paquignon, Jean-Marie David, Gilles Diolez, Jean-Paul Perin, Denis Chatain