Fuse cartridge of the type with functioning indicator
US5260679A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1992 |
| Grant date | Nov 9, 1993 |
| Priority date | — |
| Expiry date | Dec 21, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H85/306
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Fuse cartridge, of the type comprising, a striking element (8) retained against elastic means (7) by a conductive wire (6) connected between the connection heads (2) in parallel with at least one meltable element (5) so as to melt with the latter under the effect of an accidental overintensity, a micro-switch (9) whose knob (12) is intended to be actuated by said striking element to supply an alarm circuit in the case of melting of element (5), characterized in that, between the knob (12) and the striking element (8) there is interposed a rocking lever (13) profiled in the manner of a cam in order to give the micro-switch (9) two stable positions of functioning, whatever its inner mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.