Timekeeper with a mechanism for measuring settable predetermined periods
US7293911B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2006 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Oct 4, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F7/0847
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This timekeeper comprises a first timer (4), means (12) for connecting it selectively to the train of the timekeeper (T), a second timer (5), a synchronous coupling between the first (4) and second (5) timers, and fly-back means (13, 13′, 9, 11) for said timers (4, 5). An auxiliary motive source (10′) is in a driving relationship with the second timer (5) and a one-way coupling (6a, 7a) is situated between the first (4) and second (5) timers to regulate the speed of movement of the latter at a predetermined ratio with the speed of movement of the first timer (4) while allowing one-way relative movement of the first timer (4) relative to the second (5) when the latter is in the stop position and one-way relative movement in the opposite sense of the second timer (5) when the first timer (4) is in the stop position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.