Patents by Inventor Jean Rigal

Jean Rigal 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).

  • Patent number: 10399191
    Abstract: A method for producing heat exchangers having at least two fluid circuits each having channels, including the following steps: producing one or a plurality of elements of a first fluid circuit, each element having at least two metal plates, at least one of which has first grooves; stacking the at least two metal plates of each element in such a way that the first grooves form the channels of the first circuit; assembling each element of the first circuit by diffusion welding between the two stacked metal plates; producing one or a plurality of elements of at least one second fluid circuit, each element of the second circuit having at least a portion of the channels of the second circuit; assembling, either by diffusion welding, or by brazing, or by diffusion brazing between the element or elements of the first circuit and the element or elements of the second circuit.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: September 3, 2019
    Assignee: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Emmanuel Rigal, Lionel Cachon, Jean-Marc Leibold, Isabelle Moro-Le Gall, Fabien Vidotto
  • Publication number: 20080033191
    Abstract: The invention describes a process for the production of glycerol of providing a vegetable oil or fat as starting material, obtaining crude glycerol from the vegetable oil or fat, and treating the crude glycerol with a reducing agent. The present invention also describes a process for the production of a medicament or pharmaceutical composition, the medicament or composition formed by combining glycerol and at least one pharmaceutically active ingredient. The present invention also describes a pharmaceutical composition or medicament composed of glycerol obtained by way of the invention and a pharmaceutically active ingredient, which compositions forms very little glyceraldehyde and dihydroxyacetone during storage.
    Type: Application
    Filed: July 25, 2007
    Publication date: February 7, 2008
    Inventors: Ulrich Schoerken, David Melchior, Jochen Seifert, Carolin Meyer, Valerie Eychenne, Christiane Richard-Elsner, Horst Josten, Jean Rigal, Bernhard Gutsche, Albert Strube
  • Patent number: 7064223
    Abstract: A process for making technical oleic acid methyl esters having a stearic acid methyl ester content of less than about 2% by weight, and a palmitic acid methyl ester content of less than about 5%, comprising: (a) providing a C8-18 palm kernel oil fatty acid methyl ester; (b) fractionally distilling said C8-18 palm kernel oil fatty acid methyl ester to form a C8-14 head product and a C16-18 bottom product; (c) fractionally distilling the C16-18 bottom product to form a short-chain C16 head product and a long-chain and unsaturated C18 bottom product; (d) fractionally distilling the long-chain and unsaturated C18 bottom product to form a predominantly unsaturated head product having a high palmitic acid methyl ester content and a predominantly unsaturated bottom product have a minimal palmitic acid methyl ester content; and (e) fractionally distilling the predominantly unsaturated bottom product have a minimal palmitic acid methyl ester content to form a head product rich in oleic acid methyl ester and poor in st
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: June 20, 2006
    Assignee: Cognis France S.A.
    Inventors: Stephan Heck, Volker Winterhoff, Bernhard Gutsche, Georg Fieg, Uwe Mueller, Jean Rigal, Thomas Kapala
  • Patent number: 6911164
    Abstract: A process for making spherically-shaped sterol preparations involving: (a) providing a liquid sterol preparation; (b) forming the liquid sterol preparation into liquid sterol droplets; and (c) solidifying the liquid sterol droplets to form the spherically-shaped sterol preparations.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: June 28, 2005
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Gerhard Wollmann, Bernhard Gutsche, Wolfgang Albiez, Jean Rigal, Yannik Basso
  • Publication number: 20050090676
    Abstract: A process for making technical oleic acid methyl esters having a stearic acid methyl ester content of less than about 2% by weight, and a palmitic acid methyl ester content of less than about 5%, comprising: (a) providing a C8-18 palm kernel oil fatty acid methyl ester; (b) fractionally distilling said C8-18 palm kernel oil fatty acid methyl ester to form a C8-14 head product and a C16-18 bottom product; (c) fractionally distilling the C16-18 bottom product to form a short-chain C16 head product and a long-chain and unsaturated C18 bottom product; (d) fractionally distilling the long-chain and unsaturated C18 bottom product to form a predominantly unsaturated head product having a high palmitic acid methyl ester content and a predominantly unsaturated bottom product have a minimal palmitic acid methyl ester content; and (e) fractionally distilling the predominantly unsaturated bottom product have a minimal palmitic acid methyl ester content to form a head product rich in oleic acid methyl ester and poor in st
    Type: Application
    Filed: November 21, 2002
    Publication date: April 28, 2005
    Inventors: Stephan Heck, Volker Winterhoff, Bernhard Gutsche, Georg Fieg, Uwe Mueller, Jean Rigal, Thomas Kapala
  • Publication number: 20030057579
    Abstract: A process for making spherically-shaped sterol preparations involving: (a) providing a liquid sterol preparation; (b) forming the liquid sterol preparation into liquid sterol droplets; and (c) solidifying the liquid sterol droplets to form the spherically-shaped sterol preparations.
    Type: Application
    Filed: September 27, 2002
    Publication date: March 27, 2003
    Inventors: Gerhard Wollmann, Bernhard Gutsche, Wolfgang Albiez, Jean Rigal, Yannik Basso
  • Patent number: 5514820
    Abstract: The invention relates to a continuous process for the production of lower alkyl esters at temperatures of up to 100.degree. C. and under pressures of up to 10 bar by reaction of fatty acid triglycerides containing less than 1% free fatty acid with a lower alcohol in two stages in the presence of a homogeneous alkaline catalyst, the glycerol formed being removed after the first stage. To enable the process to be carried out with high yields and with lower maintenance, investment and energy costs than in the prior art, the reaction mixture is passed through a reactor and a following static separator only once in each stage, tube reactors are used as the reactors and the Reynolds number of the flow of the reaction mixture is greater than 2,300.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: May 7, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Georg Assmann, Gerhard Blasey, Bernhard Gutsche, Lutz Jeromin, Jean Rigal, Rene Armengaud, Bernard Cormary
  • Patent number: 5225084
    Abstract: A process for the separation, by sedimentation, of at least one liquid organic component dispersed in a liquid containing mainly organic materials, this organic component and the remaining liquid exhibiting a difference in density. In order to reduce considerably the standing time, it is proposed that the liquid be passed before sedimentation through a fiber bed that the organic component and the remaining liquid have different surface tensions with respect to the fiber bed, that the temperature of the liquid and the concentration of the organic component to be separated are such that, in the equilibrium state, at least two liquid phases form, and that the rate of flow of the liquid through the fiber bed lies below a maximum value dependent on the surface tension of the organic component with respect of the fiber bed and on the difference in density and surface tension between the remaining liquid and the organic component.
    Type: Grant
    Filed: October 17, 1991
    Date of Patent: July 6, 1993
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Georg Assmann, Bernhard Gutsche, Wilhelm Johannisbauer, Richard Ridinger, Jean Rigal, Rene Armengaud, Bernard Cormary
  • Patent number: 3946892
    Abstract: A double-walled vessel wherein a grid is located between the walls to provide a support for the inner wall, the grid being made up of strips which are on edge and which define interconnected cells for passage of a fluid between the walls.
    Type: Grant
    Filed: February 14, 1972
    Date of Patent: March 30, 1976
    Assignee: Creusot-Loire
    Inventors: Jean Rigal, Jacques Troton