Method of forming polymer insulator
US6105248A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 1998 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Oct 9, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49227
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of forming a polymer insulator is disclosed. The improvement includes the steps of: setting a formed body, having a construction such that a pre-form material is arranged around a rod and end caps are arranged at both end portions of the rod, between an upper die and a lower die, each die having cavities for forming sheds and sheath portions of the polymer insulator; and forming the sheds and the sheath portions of the polymer insulator by means of a compression forming by connecting the upper die and the lower die with compression pressure; wherein the end cap has a shape such that it is accommodated in the cavity for a shed formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.