Method of manufacture for bendable membrane switch
US4320573A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 30, 1980 |
| Grant date | Mar 23, 1982 |
| Priority date | — |
| Expiry date | May 30, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49105
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A membrane switch of the type actuated by bending is manufactured from a blank of flexible sheet material. An appropriate pattern of conductors is silk-screened on first and second portions of the blank. Then an insulative spacing means is silk-screened onto the first and second portions in a symmetrical pattern. Adhesive is applied to the blank. Hinges are formed along the line of symmetry of the spacing means and the second portion of the blank is folded over the first portion along these hinges to complete the switch. The adhesive holds the folded switch together with the first portion of the blank forming the switch substrate and the second portion forming the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.