Protective device with tamper resistant shutters
US8044299B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 12, 2009 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Jan 5, 2030 |
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 modular shutter assembly for use within various types of electrical wiring devices having differing amperage ratings. The modular shutter assembly includes a first shutter member having a first blade engagement structure. The first shutter member is configured to be disposed within an interior portion of the cover assembly and disposed between a set of receptacle openings and a set of receptacle contacts. A second shutter member includes a second blade engagement structure and is slidably disposed within the first shutter member. An interface is configured to connect a third shutter member to the modular shutter assembly and drive the third shutter into an open position only when the first shutter member and the second shutter member are simultaneously engaged by a set of plug blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.