Safety device for a switching appliance formed by assembling together several removable modular elements
US4973929A · kind A · utility
24Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1989 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | Oct 26, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides a safety device for switching appliances formed by the assembly of at least two removable modular elements, namely a switching module and an indirect switching control module which is able to pass from a tripped condition to a set condition by means of a setting member, tripping following a tripping order applied to a tripping member. The control module is fixed to the switching module by means of a screw whose head is only accessible in the set condition of the control module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.