Membrane switch
US4440999A · kind A · utility
2Cited by
32References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1982 |
| Grant date | Apr 3, 1984 |
| Priority date | — |
| Expiry date | Aug 13, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2229/038
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved membrane switch (10) is the subject matter of this patent. The switch (10) includes a pair of transparent, laminar contacts (16, 18) sandwiching a spacer (30) therebetween. The spacer (30) has a window (36) formed therein so that the contacts (16, 18) can be engaged at the location of the window (36) by the application of pressure to one of the contacts (16, 18). Engagement of the contacts (16, 18) closes a circuit to effect a desired function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.