Glaze to pin connection for an electrical insulator with embedded metal fitting
US4443659A · kind A · utility
8Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1982 |
| Grant date | Apr 17, 1984 |
| Priority date | — |
| Expiry date | Aug 2, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B17/42
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This disclosure teaches an electrical insulator with improved glaze to pin electrical connection. A suitably contoured porcelain insulator shell is coated with a semiconductive glaze and has a metal cap and a metal pin each situated at a surface of the insulator shell opposite to the other. The insulator shell forms a recess to receive the pin and Portland cement is poured therein for mechanically securing the pin embedded in the insulator shell. A phenolic polymer composition is applied to cover the surface of the Portland cement to connect the pin electrically to the glaze and thus to accommodate passage of leakage current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.