Insulating support column with operating member
US4654489A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1985 |
| Grant date | Mar 31, 1987 |
| Priority date | — |
| Expiry date | Sep 27, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/42
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An insulating support column is provided for driving interrupting units and includes an insulator having a longitudinal bore extending therethrough, a translational operating member extending through and outside of both ends of the insulator, and sealing arrangements between the operating member and the insulator to retain insulating material within the insulator and to seal the bore from the external environment. The insulating support column is disposed substantially vertically during operation to drive the interrupting unit. The operating member includes a first portion of insulative material and metallic portions that are affixed at each end of the first portion. The lower metallic end portion of the operating member includes a connector that is driven by a power train and the upper metallic end portion includes a connector that is connected to drive an interrupting unit. An end fitting is affixed to each end of the insulator. Each of the end fittings includes a central bore and a sealing arrangement within the bore. The upper sealing arrangement operates with respect to the first, insulative portion of the operating member and the lower sealing arrangement operates with respec…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.