Calendar watch movement
US4171610A · kind A · utility
7Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 1977 |
| Grant date | Oct 23, 1979 |
| Priority date | — |
| Expiry date | May 31, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B19/25386
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Driving mechanism for a calendar watch mechanism including indicia of day and date, a display window and means to advance said day and date indicia to said window, characterized by a calendar wheel which makes one revolution each 24 hours, a drive element on that wheel, a rapid advance member, a cocking element, the rapid advance member being elastically acted on and having a ramp which cooperates with the cocking element to control the rotation of the calendar wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.