Patents by Inventor Yannick Sieffert

Yannick Sieffert 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).

  • Hydromechanical device for supplying the chambers of a linear receiving cylinder, and hydraulic system incorporating such a device
    Patent number: 12529389
    Abstract: The hydromechanical device (102) for supplying each of two opposing active chambers (vr1ca1, vr1ca2) of a double-acting receiving cylinder (vr1) for servo-controlled operation of at least one first output rod (vr1ts1, vr1ts2) INCLUDES: a first double-acting generating cylinder (vg1) INCLUDING a first movement input rod (vg1te1) which is rigidly connected to a first piston (vg1p1) that delimits two first opposing passive chambers (vg1cp1, vg1cp2), each of which is selectively connected to at least one of THE two opposing active chambers of the receiving cylinder (vr1); and an assembly (110) for driving the first rod (vg1te1) of the first generating cylinder (vg1), INCLUDING a movement-transforming screw-nut assembly (112, 114), one movement output component (114) of which is rigidly connected to the first rod (vg1te1) of the first generating cylinder (vg1) and the other movement input component (112) of which is rotated by a drive motor (m1).
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: January 20, 2026
    Assignees: UNIVERSITE GRENOBLE ALPES, INSTITUT POLYTECHNIQUE DE GRENOBLE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Jean-Luc Decosne, Laurent Debove, Yannick Sieffert
  • HYDROMECHANICAL DEVICE FOR SUPPLYING THE CHAMBERS OF A LINEAR RECEIVING CYLINDER, AND HYDRAULIC SYSTEM INCORPORATING SUCH A DEVICE
    Publication number: 20250223980
    Abstract: The hydromechanical device (102) for supplying each of two opposing active chambers (vr1ca1, vr1ca2) of a double-acting receiving cylinder (vr1) for servo-controlled operation of at least one first output rod (vr1ts1, vr1ts2) INCLUDES: a first double-acting generating cylinder (vg1) INCLUDING a first movement input rod (vg1te1) which is rigidly connected to a first piston (vg1p1) that delimits two first opposing passive chambers (vg1cp1, vg1cp2), each of which is selectively connected to at least one of THE two opposing active chambers of the receiving cylinder (vr1); and an assembly (110) for driving the first rod (vg1te1) of the first generating cylinder (vg1), INCLUDING a movement-transforming screw-nut assembly (112, 114), one movement output component (114) of which is rigidly connected to the first rod (vg1te1) of the first generating cylinder (vg1) and the other movement input component (112) of which is rotated by a drive motor (m1).
    Type: Application
    Filed: December 27, 2022
    Publication date: July 10, 2025
    Applicants: UNIVERSITE GRENOBLE ALPES, INSTITUT POLYTECHNIQUE DE GRENOBLE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Jean-Luc Decosne, Laurent Debove, Yannick Sieffert