Timepiece calendar mechanism
US9454133B2 · kind B2 · utility
3Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 3, 2015 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Dec 3, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B19/2575
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Watch comprising a movement arranged to drive a timepiece calendar mechanism, which includes drive means that drive, at each change in month, complementary drive means arranged to drive a month cam whose periphery cooperates with a month feeler arm comprised in the calendar mechanism, where this month cam covers an angular sector of less than 360°, and the calendar mechanism includes elastic return means arranged to instantaneously return the month cam in a backward movement, in cooperation with the month feeler, to the position of the first month of the year upon completion of the last day of the preceding year.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.