Patents by Inventor Catherine Callens

Catherine Callens 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).

  • Method for designing a nuclear fuel assembly with damping guide tube
    Patent number: 7627073
    Abstract: A method to design a nuclear fuel assembly having the following steps including establishing the falling speed of the control rod upon entry into the lower damping portion when the control cluster falls in the event of a shutdown of the nuclear reactor, establishing, based on the falling speed established in step a), the progression of the falling speed of the control rod in the lower damping portion, establishing, based on the progression of the speed established in step b), a maximum elevated pressure produced in the liquid contained in the lower damping portion, and establishing, based on the maximum elevated pressure established in step c), a maximum circumferential stress produced in the lower damping portion.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: December 1, 2009
    Assignee: Framatome ANP
    Inventors: Catherine Callens, Hélène Segura
  • Method for designing the spider spring of a control cluster of a nuclear fuel assembly, corresponding system, computer program and product
    Patent number: 7509242
    Abstract: A method for designing a nuclear fuel assembly, including the steps of establishing a progression of a speed of the control cluster after the impact of the support against the upper end piece, establishing, based on the speed established in step a), a maximum longitudinal load for compression of the spring, and establishing, based on the maximum longitudinal load for compression, at least a maximum shearing stress in the spring.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: March 24, 2009
    Assignee: Framatome ANP
    Inventors: Catherine Callens, Hélène Segura
  • Method for designing a nuclear fuel assembly with damping guide tube
    Publication number: 20060165208
    Abstract: A method to design a nuclear fuel assembly having the following steps including establishing the falling speed of the control rod upon entry into the lower damping portion when the control cluster falls in the event of a shutdown of the nuclear reactor,establishing, based on the falling speed established in step a), the progression of the falling speed of the control rod in the lower damping portion, establishing, based on the progression of the speed established in step b), a maximum elevated pressure produced in the liquid contained in the lower damping portion, and establishing, based on the maximum elevated pressure established in step c), a maximum circumferential stress produced in the lower damping portion.
    Type: Application
    Filed: February 25, 2003
    Publication date: July 27, 2006
    Inventors: Catherine Callens, Helene Segura
  • Method for designing a spider spring of a bundle controlling a nuclear fuel assembly, corresponding system, computer programme and product
    Publication number: 20050157835
    Abstract: A method for designing a nuclear fuel assembly, including the steps of establishing a progression of a speed of the control cluster after the impact of the support against the upper end piece, establishing, based on the speed established in step a), a maximum longitudinal load for compression of the spring, and establishing, based on the maximum longitudinal load for compression, at least a maximum shearing stress in the spring.
    Type: Application
    Filed: February 19, 2003
    Publication date: July 21, 2005
    Inventors: Catherine Callens, Helene Segura
  • Bioadhesive composition
    Patent number: 6824792
    Abstract: This invention relates to a method of producing a bioadhesive composition comprising the steps of preparing a solution of a solvent and a polymer mixture wherein the polymer mixture comprises at least one natural or synthetic polycarboxylated polymer and at least one polysaccharide; drying the solution to form a solid; and heat treating the solid to effect cross-linking and to form the bioadhesive composition.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: November 30, 2004
    Assignees: Universiteit Gent, National Starch and Chemical Investment Holding Corporation
    Inventors: Paul B. Foreman, Paul Richardson, John Tsai, Jean Paul Remon, Jody Voorspoels, Dieter Ameye, Catherine Callens
  • Bioadhesive composition
    Publication number: 20020028241
    Abstract: This invention relates to a method of producing a bioadhesive composition comprising the steps of preparing a solution of a solvent and a polymer mixture wherein the polymer mixture comprises at least one natural or synthetic polycarboxylated polymer and at least one polysaccharide; drying the solution to form a solid; and heat treating the solid to effect cross-linking and to form the bioadhesive composition.
    Type: Application
    Filed: July 17, 2001
    Publication date: March 7, 2002
    Inventors: Paul B. Foreman, Paul Richardson, John Tsai, Jean Paul Remon, Jody Voorspoels, Dieter Ameye, Catherine Callens
  • Bioadhesive composition
    Patent number: 6284235
    Abstract: This invention relates to a method of producing a bioadhesive composition comprising the steps of preparing a solution of a solvent and a polymer mixture wherein the polymer mixture comprises at least one natural or synthetic polycarboxylated polymer and at least one polysaccharide; drying the solution to form a solid; and heat treating the solid to effect cross-linking and to form the bioadhesive composition.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: September 4, 2001
    Assignee: National Starch and Chemical Company Investment Holding Corporation
    Inventors: Paul B. Foreman, Paul Richardson, John Tsai, Jean Paul Remon, Jody Voorspoels, Dieter Ameye, Catherine Callens