Fire safety fusible link electrical terminal block
US7385796B2 · kind B2 · utility
5Cited by
3References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 17, 2003 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Sep 17, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2037/762
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical terminal block has a heat-meltable fusible link establishing a closed electrical circuit between a conductor and an actuator responsive to a control signal transmitted by conductor for controlling the state of an emergency process control device, such as a shut-off valve. The heat-meltable fusible link melts in response to ambient heat exceeding a predetermined temperature to establish an open electrical circuit between the electrical conductor and the actuator thereby causing the actuator to move the emergency process control device to a safe position or state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.