Isolated path coupling system
US4118102A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1975 |
| Grant date | Oct 3, 1978 |
| Priority date | — |
| Expiry date | Apr 3, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2229/058
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit board or sheet of homogeneous material having one or more circuit elements adhering to a surface thereof, said sheet providing a low through resistance path between each circuit element and opposed and aligned contacts positioned in surface contact with the opposite side of the sheet while providing a high isolation resistance between out of alignment contacts positioned on the opposite side of the sheet and between contacts positioned on the same side of the sheet positioned an isolation distance from said circuit elements. The circuit board with a circuit pattern is shown in various applications, such as keyboard or watch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.