Anti-adhesion device for a balance spring on a bar
US9348313B2 · kind B2 · utility
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0References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2014 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Apr 21, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B29/025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a timepiece movement including a resonator formed by the cooperation of a balance with a balance spring, said resonator being pivotally mounted between a bar and another part such as a bar or a main plate. According to the invention, the timepiece movement further includes a device preventing adhesion of said balance spring against said bar including a surface decreasing means formed on the bar for limiting the contact surface when the faces of said balance spring and of said bar touch each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.