Tamper resistant receptacle with cam feature
US9543685B2 · kind B2 · utility
5Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2015 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Jul 14, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/4534
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A tamper resistant electrical receptacle for use with 20 A receptacles. A pair of pivoting shutter and trap doors biased in the same direction use a cam and cam follower that moves laterally a distance sufficient to allow passage of the perpendicular portion of a neutral blade of a 20 A electrical plug when simultaneous insertion of electrical plug tines overcome the spring bias of the springs to allow the tines to access the devices hot and neutral electrical contacts. Absent simultaneous insertion, the shutter and trap doors cannot operate in tandem to provide the tines passage to the electrical contacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.