Polymer concrete electrical insulator and method and apparatus for making
US5340512A · kind A · utility
22Cited by
33References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1993 |
| Grant date | Aug 23, 1994 |
| Priority date | — |
| Expiry date | Jan 29, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/044
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved electrical insulator for high voltage transmission lines is formed from certain polymer-based concrete compositions. An apparatus provides for the molding of the polymer-based mixture to form a highly degassed product. The method and apparatus include the ability to combine the constituents of the mixture in a mixer. A vacuum is applied to the mixture to degas the mixture. A mold is filled with the degassed mixture without introducing air thereinto in the absence of a vacuum. The resulting insulator has highly reduced air entrainment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.