Laminate switch assembly having improved tactile feel and improved reliability of operation
US4598181A · kind A · utility
67Cited by
6References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1984 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | Nov 13, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2215/006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A laminate switch assembly comprising dual dome switchplates providing improved tactile sensation good balance characteristics and able to maintain a low dynamic resistance throughout its life expectancy. Both tensioned domes are aligned with electrical contact areas part of which is formed on the underside of one dome and the other on a printed circuit board or backplate, which in response to depression are placed in contact with each other to provide a switch closure to a connected or associated electrical device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.