Timepiece resonator mechanism
US9958831B2 · kind B2 · utility
3Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2017 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Jan 19, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B31/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A watch or movement including a timepiece resonator movement including two RCC flexural pivots mounted in series about an intermediate rotary support and having the same virtual pivot axis, each including two straight flexible strips of the same length, whose clamping points opposite to this pivot axis are at the same distance with respect to this axis, and which define linear directions, forming angles, in pairs, with this virtual pivot axis, whose value expressed in degrees is comprised between:109.5+5/[(D/L)−(2/3)] and 114.5+5/[(D/L)−(2/3)],or more particularly between 107+5/((D/L)−(2/3)) and 112+5/((D/L)−(2/3)).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.