Carbon transducer with electrical contact
US4387276A · kind A · utility
3Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1981 |
| Grant date | Jun 7, 1983 |
| Priority date | — |
| Expiry date | Sep 11, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A carbon transmitter utilizes an electrode prepared by in situ reaction between substrate copper and introduced sulfur. Good surface adhesion between the resulting CuS layer and the substrate is assured by use of a two-phase cobalt/copper substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.