Wall plate with one opening for one of more wiring devices
US7435903B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2006 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Mar 8, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G3/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The instant invention discloses a receptacle having a shape along the width of its face that is flat in one plane and along its length that has a constant radius. The shape of the face of the receptacle allows for the proper seating of an inserted plug. The shape of a wall plate around the receptacle along a section which runs along its vertical axis defines a surface of positive first differential and zero second differential, comprised of a combination of splines drawn between points of varying distance from a datum plane. The surface has zero second differential when the rate of height increase of individual splines is constant. When ganged with a switch, the front surface of the switch follows the shape of the cover plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.