Sealed envelope based on a filamentary winding, and application to a composite lightning arrester
US5050032A · kind A · utility
10Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1990 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | May 14, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C7/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sealed envelope based on a filamentary winding constituted by resin-impregnated glass fibers, for equipment likely to be subjected to large thermal stresses and thus to be the seat of internal excess pressures, the winding adhering to the outside surface of the equipment, wherein the outside surface of the equipment coated with the winding has fiber-free zones forming resin-filled gaps, with the percentage of the surface area not covered with fibers being not less than about 15%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.