Water-tight watch case
US4104867A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1976 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Feb 27, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B37/113
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The water-tight watch case is disclosed wherein the case provides a water-tight enclosure for an electronic watch module and wherein the case includes a removable cover portion for providing physical access to the interior of the case for replacement of batteries and the like. The removable cover portion includes a truncated conically tapered sealing ring surface having an angle of taper less than 8.degree. and preferably in the range of 7.degree. to 3.degree. for providing an interference-contact axial press fit with a mating truncated conically tapered surface of the case. A water-tight seal is formed between the cover and the case essentially solely due to the axially pressed interference-contact fit between the pair of mated tapered sealing ring surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.