Cap and pin insulator
US5147984A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1990 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Dec 4, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B17/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An insulator member comprises a porcelain insulator head and a polymeric shed secured to the insulator head. The insulator member can be used, for example, in an improved electrical line insulator which comprises a) an insulator unit comprising a porcelain head, and a polymeric shed secured to the porcelain head; b) a metal cap and a metal pin each situated at a surface of the insulator unit opposite to the other, the porcelain head forming a recess to receive the pin; c) cement mechanically securing the cap to the insulator unit; and d) cement within the recess and about the pin mechanically securing the pin within the recess. Methods of manufacture are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.