Electrical outlet box
US4304958A · kind A · utility
Inventors
Key dates
| Filing date | Mar 3, 1980 |
| Grant date | Dec 8, 1981 |
| Priority date | — |
| Expiry date | Mar 3, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G3/083
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical outlet box which includes side walls and a back wall and has an opening opposite the back wall. Screw-receiving retainer lugs are provided on the side walls to facilitate attachment of a cover plate to the box, and a plurality of conductor windows are provided in the box at the intersection of the back wall with one or more side walls. A flexible, resilient arcuate locking tongue carries locking teeth on a convex, outwardly facing side of the tongue for locking, tangential contact with an electrical conductor extended through the respective conductor window and against the locking tongue while the locking tongue is in a deflected status. Cusps having arcuate ramp surfaces are formed on the back wall to guide conductors inserted into the box through the windows into the interior of the box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.