Chronometric testing device
US11003141B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2018 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Jun 25, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04D7/1264
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device that tests the chronometric precision of a watch movement or a watch includes a control device controlling a predefined cycle of motions passing through standard chronometric test positions, and a fine control device including a sequencer arranged to control the changes of chronometric test position of this movement, or respectively of this watch, in a multi-position sequence, after each measurement per position, and to start another multi-position sequence as soon as the preceding sequence finishes and which observes the predefined total duration of one cycle of several successive multi-position sequences. This sequencer is also arranged to manage the rate stabilisation durations, durations of measurement per position, and multi-position sequence durations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.