Method of manufacturing a sensing element
US4971638A · kind A · utility
3Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1989 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Sep 11, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2971
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of manufacturing a sensing element, comprising bringing a first body in the form of an oil-free cross-linked matrix of flexible elastomeric material, the matrix containing electrically conductive particles, into contact with a second body of flexible elastomeric material that is electrically insulating and that contains an oil compatible with the elastomeric material of the first body, and allowing oil to migrate from the second to the first body so as to cause swelling of the first body, the migration continuing until a state of oil phase equalisation between the two bodies is reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.