Method of making part of a watch case
US4589886A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1983 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Dec 5, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/5347
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In the manufacture of a watch case part comprising a glass and a middle having an opening for the glass, the following operations are carried out: first, a metallic coating is deposited on a peripheral portion of the glass, then one or more elements are formed on the coating by moulding a molten material having an affinity for the metal forming the coating, whereupon the glass is secured to the middle through the intermediary of the fastening element. The fastening element may consist of a heel extending around the periphery of the glass or of fastening studs extending at right angles to the plane of the glass. In some cases the fastening element may also act as sealing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.