Switching devices incorporating rupture disk
US12300456B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2020 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Nov 18, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2050/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electrical switching devices are disclosed that have pressure relief mechanisms to allow for the release of internal pressure within the switching device housing. The pressure within the housing can be caused by different events with one such event being internal arcing within the housing caused during operation of the housing's internal components. Is some cases the arcing can be caused during separation of the switching device contacts. The pressure relief mechanism allows for the high pressure to pass from the housing in a more controlled matter to minimize or prevent high pressure breach or rupture of the switching device housing. The pressure relief mechanisms are particularly applicable to switching devices with hermetically sealed housings. Many different pressure relief mechanisms can be used including rupture disks or engineered weak points in the switching device housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.