Thin-membrane switch
US4385215A · kind A · utility
15Cited by
9References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1981 |
| Grant date | May 24, 1983 |
| Priority date | — |
| Expiry date | Nov 9, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2229/028
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flexible membrane switch having a thin insulating layer with a plurality of small apertures interposed between two sets of conductors which cross at each aperture. A person's fingertip pressed upon the switch closes the contacts at plural apertures. Spurious contacting is prevented. An alternate has an additional interposed insulating layer except at those areas where fingertip pressure is to be applied. Larger area switches may be palm, fist or foot operated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.