Timepiece
US8830797B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2011 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Dec 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B19/25353
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This timepiece comprises an indicator dial (40), a days-of-the-month mechanism (1) comprising a days-of-the-month mobile (10) and a stepper drive member (13) for driving the days-of-the-month mobile (10), a months mobile (30) coaxial with the days-of-the-month mobile placed beneath said dial (40) and connected to the days-of-the-month mobile (10) by stepper drive means (12, 20) formed so that the months mobile (30) turns through an angle of 30° each month. The dial (40) has twelve windows (41) that are angularly equidistant and the months mobile (30) supports a distinctive zone (32) of which the trajectory passes through said windows (41) and of which the maximum angular extent is 30° and the minimum angular extent corresponds to that of said windows (41).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.