Patents by Inventor Lennart Rubbert

Lennart Rubbert 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).

  • General two degree of freedom isotropic harmonic oscillator and associated time base
    Patent number: 10585398
    Abstract: A mechanical isotropic harmonic oscillator including a two rotational degrees of freedom linkage supporting an orbiting mass with respect to a fixed base with at least one spring element having isotropic and linear restoring force properties, such that a high degree of spring stiffness and reduced mass isotropy provides for reduced sensitivity to linear and angular accelerations.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: March 10, 2020
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Simon Henein, Lennart Rubbert, Ilan Vardi
  • Isotropic harmonic oscillator and associated time base without escapement or with simplified escapement
    Patent number: 10365609
    Abstract: A mechanical isotropic harmonic oscillator including a two translational degrees of freedom linkage supporting an orbiting mass with respect to a fixed base with springs having isotropic and linear restoring force properties.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: July 30, 2019
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Simon Henein, Lennart Rubbert, Ilan Vardi
  • General 2 Degree of Freedom Isotropic Harmonic Oscillator and Associated Time Base Without Escapement or with Simplified Escapement
    Publication number: 20190227493
    Abstract: A mechanical isotropic harmonic oscillator including a frame, a mass configured to oscillate, and three flexure rods, each flexure rod connecting the mass to the frame.
    Type: Application
    Filed: February 7, 2019
    Publication date: July 25, 2019
    Inventors: Simon Henein, Lennart Rubbert, Ilan Vardi
  • General Two Degree of Freedom Isotropic Harmonic Oscillator and Associated Time Base
    Publication number: 20160327909
    Abstract: The mechanical isotropic harmonic oscillator comprises at least a two degrees of freedom linkage supporting an orbiting mass with respect to a fixed base with springs having isotropic and linear restoring force properties wherein the mass has a tilting motion. The oscillator may be used in a timekeeper, such as a watch.
    Type: Application
    Filed: January 13, 2015
    Publication date: November 10, 2016
    Inventors: Simon Henein, Lennart Rubbert, Ilan Vardi
  • Isotropic Harmonic Oscillator and Associated Time Base Without Escapement or With Simplified Escapement
    Publication number: 20160327910
    Abstract: The mechanical isotropic harmonic oscillator comprises at least a two degree of freedom linkage supporting an orbiting mass with respect to a fixed base with springs having isotropic and linear restoring force properties. The oscillator may be used in a timekeeper, such as a watch.
    Type: Application
    Filed: January 13, 2015
    Publication date: November 10, 2016
    Inventors: Simon Henein, Lennart Rubbert, Ilan Vardi