Protective device with tamper resistant shutters
US7642457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2007 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Mar 15, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/641
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to a protective shutter assembly for use within a cover assembly of an electrical wiring device. The assembly includes a frameless shutter sub-assembly movable between a closed position and an open position. The frameless shutter sub-assembly is configured to move from the closed position to the open position in response to engaging at least one plug blade having a predetermined plug blade geometry. A spring member is disposed within the frameless shutter sub-assembly. The spring member is configured to bias the frameless shutter sub-assembly in the closed position. At least one retainer element is disposed in the frameless shutter sub-assembly. The at least one retainer element being configured to retain the spring member within the frameless shutter sub-assembly. At least one registration member is disposed on the frameless shutter sub-assembly, the at least one registration member being configured to position and align the protective shutter assembly within the cover assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.