Method of impregnating a capacitor
US4117579A · kind A · utility
10Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1977 |
| Grant date | Oct 3, 1978 |
| Priority date | — |
| Expiry date | Jul 20, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/435
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Between about 0.01 and 10.0% by weight of an antioxidant, and between about 0.1 and 10% by weight of an epoxide are added to a liquid aromatic ester prior to refining or purification of the ester and prior to the use of the ester to impregnate a capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.