Watchcase
US4490052A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 1982 |
| Grant date | Dec 25, 1984 |
| Priority date | — |
| Expiry date | May 18, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B45/0069
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A watchcase (1) comprising essentially a body (15) to the top surface of which is held a flat crystal (2) by means of fixation members (4) providing grooves in which the edges of the crystal are secured after having been laterally engaged therein, and a sealing strip against the perimeter of the bottom face (11) of the crystal. The grooves of the fixation members (4) are bounded by two facing surfaces between which the crystal is engaged, the top groove surface (6) bearing against the top face (8) of the crystal. The case further comprises means (12) for applying the sealing strip (10) against the bottom face (11) of the crystal only after the crystal has been engaged in the grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.