Mechanical watch with isochronic position insensitive rotary resonator
US10126711B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2017 |
| Grant date | Nov 13, 2018 |
| Priority date | — |
| Expiry date | Oct 9, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B21/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A timepiece resonator mechanism having a central wheel train fixed in rotation around an axis of an input wheel train subjected to a driving torque, arranged to turn continuously, and having a plurality of N inertial elements, each movable in relation to the central wheel train, and restored to the axis by elastic restoring device. The mechanism having device between all the inertial elements that are arranged to maintain all centers of mass of these inertial elements at the same distance from the axis at any time, and the elastic restoring device cause an elastic potential such as: Vtot=(dα0/dt)2·Σj (Mj·Rj2), where: Vtot is the elastic potential, Σj is the sum over the js of the quantity between parentheses, (dα0/dt) is the speed of rotation to be imposed, Rj is the position of the center of mass G of the inertial element j of mass Mj.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.