Electrical switch having flexible printed circuit connector cable
US4678249A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1985 |
| Grant date | Jul 7, 1987 |
| Priority date | — |
| Expiry date | Dec 27, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2001/5816
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Compressible metal spring washers are mounted around the shank portions of terminal rivets and are clamped against thin conductor laminae of a flexible printed circuit having a resilient resinous plastic base lamina, clamped by the rivets against a relatively rigid plastic terminal supporting member. Each washer has a central dished portion, a reversely dished peripheral portion, and a smoothly rounded annular bulging portion therebetween for engaging one of the thin conductor laminae, without cutting into the laminae. The spring washers obviate any looseness of the terminal rivets due to dimensional variations, shrinkage with age, and temperature variations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.