Circuit breaker bell alarm accessory with lockout function
US6054661A · kind A · utility
22Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1998 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Jan 14, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H3/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An air circuit breaker bell alarm lock-out accessory interacts with the circuit breaker closing system to prevent charging of the circuit breaker closing spring until and unless the bell alarm module has been manually reset. A lockout slide on the bell alarm module support interacts with the circuit breaker closing spring operating link to prevent the recharging of the closing spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.