Electrical junction and outlet box
US4438859A · kind A · utility
34Cited by
11References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1983 |
| Grant date | Mar 27, 1984 |
| Priority date | — |
| Expiry date | Jul 29, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G3/081
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Unitary folded metal electrical wiring boxes having the strength and rigidity of drawn one-piece boxes without the need for weld points comprise a flat polygonal base with sidewalls provided with mated extended portions and indented portions at the corners. Tabs on one sidewall extension fold over the top edge of the adjacent sidewall, engaging a notch on the second sidewall to interlock the sidewalls at each corner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.