Watch pivot device
US11392091B2 · kind B2 · utility
0Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2018 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Nov 3, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B31/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method of assembly of a watch pivot device (100) or a watch mechanism (200) or a watch movement (300) or a timepiece (400), the watch pivot device (100) or the watch mechanism (200) or the watch movement (300) or the timepiece (400) comprising a pivot (1) and a bearing (2), the method comprising the following stages: (i) supplying the pivot (1); (ii) supplying the bearing (2); (iii) applying, to at least one surface (101, 102, 211, 221) of the pivot and/or of the bearing, a lubricant of which the kinematic viscosity at a temperature of 20° C. is greater than 1.5 St; and (iv) positioning the pivot in the bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.