Formed metallic wiring box
US4642420A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1985 |
| Grant date | Feb 10, 1987 |
| Priority date | — |
| Expiry date | Jul 9, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G3/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sheet metal, electrical wiring box having integral wiring device attachment means on its end walls. Each attachment means comprises a base plate bent outwardly from an end wall and flexible leg plates extending downwardly and inwardly toward each other from the ends of the base plate. Each leg plate ends in a partially threaded foot portion. The foot portions face each other and form an aperture through which a fastening screw, for the wiring device, can be pushed. The fastening screw is freely inserted down through an aperture in the base plate and pushed through the aperture between the foot portions on the leg plates when attaching the wiring device to the box. The flexible leg plates cause the partially threaded foot portions to bear against the screw. Rotation of the inserted screw draws the leg plates up tight against the base plate to securely lock the screw and the wiring device to the box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.