Patents by Inventor Yves-Alain COSANDIER

Yves-Alain COSANDIER 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: 11693366
    Abstract: A flexible guide for a rotary resonator mechanism, in particular of a horological movement, the guide including a first support, an element movable relative to the first support, a first pair of flexible strips connecting the first support to the movable element, so that the movable element can displace relative to the first support by bending the strips in a circular movement about a centre of rotation, the flexible guide being arranged substantially in a plane, including a prestressing device, the prestressing device being configured to apply a force for buckling the flexible strips by bringing the first support closer to the movable element, so that the flexible guide includes two stable positions of the element movable relative to the first support for which the return moment is zero, the two stable positions having a predetermined angle of rotation therebetween.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: July 4, 2023
    Assignee: ETA SA Manufacture Horlogère Suisse
    Inventors: Pascal Winkler, Jean-Luc Helfer, Yves-Alain Cosandier
  • Patent number: 11556092
    Abstract: A horological mobile component, including around an axis, a first element including a first shoulder and a second element including a second shoulder which cooperates by friction with a third shoulder that is included by a third element interposed between the first element and the second element, this third element includes a fourth shoulder cooperating by friction with the first shoulder or being driven onto this first shoulder, and the diameter of the third shoulder is at least double the diameter of the fourth shoulder, and the second element includes a main hollow defining at least two bearing surfaces each including one or two bearing sectors belonging to the second shoulder.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: January 17, 2023
    Assignee: ETA SA Manufacture Horlogère Suisse
    Inventors: Stéphane Bachmann, Christophe Cattin, Yves-Alain Cosandier, Laurent Kaelin
  • Publication number: 20210157275
    Abstract: A horological mobile component, including around an axis, a first element including a first shoulder and a second element including a second shoulder which cooperates by friction with a third shoulder that is included by a third element interposed between the first element and the second element, this third element includes a fourth shoulder cooperating by friction with the first shoulder or being driven onto this first shoulder, and the diameter of the third shoulder is at least double the diameter of the fourth shoulder, and the second element includes a main hollow defining at least two bearing surfaces each including one or two bearing sectors belonging to the second shoulder.
    Type: Application
    Filed: September 22, 2020
    Publication date: May 27, 2021
    Applicant: ETA SA Manufacture Horlogère Suisse
    Inventors: Stéphane BACHMANN, Christophe CATTIN, Yves-Alain COSANDIER, Laurent KAELIN
  • Publication number: 20210124306
    Abstract: A flexible guide for a rotary resonator mechanism, in particular of a horological movement, the guide including a first support, an element movable relative to the first support, a first pair of flexible strips connecting the first support to the movable element, so that the movable element can displace relative to the first support by bending the strips in a circular movement about a centre of rotation, the flexible guide being arranged substantially in a plane, including a prestressing device, the prestressing device being configured to apply a force for buckling the flexible strips by bringing the first support closer to the movable element, so that the flexible guide includes two stable positions of the element movable relative to the first support for which the return moment is zero, the two stable positions having a predetermined angle of rotation therebetween.
    Type: Application
    Filed: September 17, 2020
    Publication date: April 29, 2021
    Applicant: ETA SA Manufacture Horlogère Suisse
    Inventors: Pascal WINKLER, Jean-Luc HELFER, Yves-Alain COSANDIER
  • Patent number: 10927824
    Abstract: A mechanical horological movement includes at least one energy storage to drive a gear train of which an output mobile component pivots about a drive axis and including a rotary resonator which has at least one central mobile component to pivot about a central axis and including an input mobile component to collaborate with the output mobile component, this rotary resonator includes a plurality of inertial elements that each pivot with respect to the central mobile component about a secondary axis perpendicular to the central axis and each returned towards a rest position, relative with respect to the central mobile component, by at least one elastic return element, and each secondary axis passes through the centre of mass of the inertial element associated with it.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: February 23, 2021
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Pascal Winkler, Jean-Luc Helfer, Gianni Di Domenico, Yves-Alain Cosandier
  • Patent number: 10564605
    Abstract: The invention relates to a one-piece balance spring comprising a single strip wound on itself between an inner coil and an outer coil, the strip having a geometry such that when the angle of contraction of the balance spring has a value of 360 degrees, there is a constant distance between each coil from the inner coil to the penultimate coil.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: February 18, 2020
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Jean-Luc Helfer, Yves-Alain Cosandier
  • Publication number: 20190032644
    Abstract: Mechanical horological movement comprising at least one energy storage means designed to drive a gear train of which an output mobile component is designed to pivot about a drive axis and comprising a rotary resonator which comprises at least one central mobile component designed to pivot about a central axis and comprising an input mobile component designed to collaborate with the output mobile component, this rotary resonator comprises a plurality of inertial elements each one designed to pivot with respect to the central mobile component about a secondary axis perpendicular to the central axis and each returned towards a rest position, relative with respect to the central mobile component, by at least one elastic return element, and each secondary axis passes through the centre of mass of the inertial element associated with it.
    Type: Application
    Filed: July 19, 2018
    Publication date: January 31, 2019
    Applicant: ETA SA Manufacture Horlogere Suisse
    Inventors: Pascal WINKLER, Jean-Luc Helfer, Gianni Di Domenico, Yves-Alain Cosandier
  • Patent number: 10018964
    Abstract: A one-piece balance spring includes a single strip wound on itself between an inner coil and an outer coil. The strip has a geometry such that when the angle of contraction of the balance spring has a value of 360 degrees, there is a constant distance between each coil from the second coil to the penultimate coil.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: July 10, 2018
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Jean-Luc Helfer, Yves-Alain Cosandier
  • Patent number: 10012954
    Abstract: A one-piece balance spring including a single strip wound on itself between an inner coil and an outer coil, the strip having a geometry such that when the angle of contraction of the balance spring has a value of 360 degrees, there is a substantially constant distance between each coil from the inner coil to the penultimate coil.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: July 3, 2018
    Assignee: ETA SA Manufacture Horlogère Suisse
    Inventors: Jean-Luc Helfer, Yves-Alain Cosandier
  • Publication number: 20170255163
    Abstract: A one-piece balance spring including a single strip wound on itself between an inner coil and an outer coil, the strip having a geometry such that when the angle of contraction of the balance spring has a value of 360 degrees, there is a substantially constant distance between each coil from the inner coil to the penultimate coil.
    Type: Application
    Filed: March 1, 2017
    Publication date: September 7, 2017
    Applicant: ETA SA Manufacture Horlogere Suisse
    Inventors: Jean-Luc Helfer, Yves-Alain Cosandier
  • Publication number: 20170115629
    Abstract: The invention relates to a one-piece balance spring comprising a single strip wound on itself between an inner coil and an outer coil, the strip having a geometry such that when the angle of contraction of the balance spring has a value of 360 degrees, there is a constant distance between each coil from the second coil to the penultimate coil.
    Type: Application
    Filed: October 6, 2016
    Publication date: April 27, 2017
    Applicant: ETA SA Manufacture Horlogere Suisse
    Inventors: Jean-Luc HELFER, Yves-Alain COSANDIER
  • Publication number: 20170115630
    Abstract: The invention relates to a one-piece balance spring comprising a single strip wound on itself between an inner coil and an outer coil, the strip having a geometry such that when the angle of contraction of the balance spring has a value of 360 degrees, there is a constant distance between each coil from the inner coil to the penultimate coil.
    Type: Application
    Filed: October 6, 2016
    Publication date: April 27, 2017
    Applicant: ETA SA Manufacture Horlogere Suisse
    Inventors: Jean-Luc HELFER, Yves-Alain COSANDIER