Watch case having synthetic material seals between detachable parts thereof
US4545688A · kind A · utility
6Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1983 |
| Grant date | Oct 8, 1985 |
| Priority date | — |
| Expiry date | Dec 21, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B37/081
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The watch case comprising a middle (2) containing a lining (4) and a back (9) detachably mounted in a lower opening of the middle by means of a pressure device. A band (12) of synthetic material constituting a seal is formed on the periphery of the opening, that band being made in one piece with the lining and connected to it by portions of synthetic material crossing appropriate passages (15) of the middle. The side walls (16) of the opening are at least partially devoid of lining and they work together with opposite surfaces (17) of the back in order to assure pressure coupling of the latter and compression of the band (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.