Four position two dome switch
US5834716A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1996 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Aug 9, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2300/01
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention includes a mechanism for multi-dome dual detent switches having at least a first and second collapsible dome structure. An elongated action bar extends across and bridges the first and second collapsible dome members. The action bar has a top surface and a bottom surface. A notch is formed in the top surface closer to one of the dome structures. A keycap positioned for pivotal movement between a first and second forward position, and a first and second rear position. The keycap includes an engagement bar extending downwardly near one end and positioned to be received in the notch formed in the top surface of the action bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.