Method for forming a date indicator actuated by a clock movement and mechanism for implementing this method
US6958952B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2002 |
| Grant date | Oct 25, 2005 |
| Priority date | — |
| Expiry date | Jan 8, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B19/2536
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
According to this method the units and tens numerals are placed onto respective indicator runners (1, 2). Two drivelines are formed, one being a daily driveline between the clock movement and the indicator runners, for moving the units indicator runner (1) selectively step by step by one step every 24 hours, and for moving the tens indicator runner (2) by one step for every ten steps of the units indicator runner (1), in order to move on from one multiple of ten to the next, and for moving the tens indicator alone by one step to move on from “31” to “01” on a 31-day cycle, and an annual driveline between the clock movement and the tens indicator runner, which driveline is programmed to move the tens indicator runner (2) by one step at the same time as the units indicator runner (1) is moved by the daily driveline, to move on from “30” to “01” at the end of the months which comprise less than 31 days.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.