Cable clamps for electrical box
US4874905A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1988 |
| Grant date | Oct 17, 1989 |
| Priority date | — |
| Expiry date | Oct 31, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G3/083
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical ceiling box has an entrance port which is substantially closed by a cable clamp including an elongated tab hingedly connected at one end to a wall of the box. Near the other end of the tab is an arcuate wall extending from the inner surface of the tab. The wall has a concave surface facing toward the distal end of the tab. The concave surface is shaped and dimensioned to receive the end of a finger so that the installer can engage the tab to swing into the box and insert a cable through the port. At the base of the concave surface is a recess shaped and dimensioned to receive the end of a screwdriver blade to allow a screwdriver to be used for opening the port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.