Balance for timepiece movement
US7661875B2 · kind B2 · utility
12Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2007 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Mar 23, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B18/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The balance comprising a felloe (3), arms (4) connecting the felloe (3) to the balance staff and inertia blocks (11) is characterized in that the felloe (3) includes studs (7) in its inner surface, a threaded hole (9) into which said inertia blocks (11) are screwed from the inside, without passing beyond the external surface of the felloe (3), passing through said felloe (3) and said studs (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.