Mechanical timepiece comprising a movement which running is enhanced by a regulation device
US11480925B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2018 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Aug 15, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B15/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The mechanical timepiece is equipped with a movement which includes an indicator mechanism of at least one time data item, a mechanical resonator forming a slave oscillator which paces the running of the indicator mechanism, and a mechanical correction device to prevent a possible time drift in the running of the indicator mechanism. The mechanical correction device is formed by a master mechanical oscillator and a mechanical braking device of the mechanical resonator, this braking device arranged to apply periodically to the mechanical resonator mechanical braking pulses at a braking frequency determined by the master mechanical oscillator. Then, the mechanical system, formed by the mechanical resonator and the braking device, is configured to enable the braking device to be able to start the braking pulses preferably at any position of the mechanical resonator. Preferably, the braking pulses have a duration of less than one quarter of a set-point period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.