Multi-pole handle lock for circuit breakers
US8415574B2 · kind B2 · utility
1Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2009 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Oct 17, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/1018
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multi-pole handle lock having a base plate and movable locking plate assembly that is adapted to mount on to at least two circuit breakers. A handle restrictor plate is mounted on the base plate for translational movement while maintaining the circuit breaker handles in the same position as each other. The handle restrictor plate allows each handle to independently move to the tripped position, while allowing the restricted circuit breakers to operate as a logical group. The low profile of the plates, allows visual inspection of the handle ends to determine their tie status.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.