Switch mechanism for wristwatch
US4170104A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1977 |
| Grant date | Oct 9, 1979 |
| Priority date | — |
| Expiry date | Nov 30, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/919
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A switch mechanism for a wristwatch having a case and a substrate mounted in the case, which comprises conductive contact means disposed on the substrate to be in registration with a switch position of the switch mechanism, stepped bore means provided in alignment with the contact means, a diaphragm assembly including a flange, an embossed portion integral with the flange, and a contact element provided on a bottom wall of the embossed portion to be in alignment with the contact means, pressure ring means for compressing the flange to retain the diaphragm assembly in place while providing a water-tight sealing effect, and push-button means disposed in the stepped bore means and normally engaging the embossed portion of the diaphragm assembly, said push-button means being movable to press the embossed portion and the contact element toward the contact means to close the switch mechanism when the push-button means is depressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.