Combined type fluid pressure driving apparatus
US6649853B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2001 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Dec 4, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/008
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a switchgear, which can achieve miniaturization and simplification while securing high operation reliability, and excellent in assembly, operability and inspection, and further, has a compact size. A fluid pressure operating section is provided in a mechanical box arranged on a lower end portion of a support porcelain tube. Insulated operating rods are received in the support porcelain tube, and connecting mechanisms are received in a container. Switching contacts of circuit breaker and disconnecting switches and the fluid pressure operating section are connected via the connecting mechanisms and the insulated operating rods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.