Rail-mounted electrical terminals
US4270835A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1979 |
| Grant date | Jun 2, 1981 |
| Priority date | — |
| Expiry date | Jul 25, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R9/2691
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A clip-on electrical terminal block has an earth terminal which grips one flange of a channel-section support rail with outwardly turned flanges. To prevent the earth terminal from drifting in the case of a flange of tapered cross section, a clamping member of the flange not only engages the underside of the flange but also has an inner arm which engages the internal surface of the channel-section rail. A single clamping screw clamps together the earth conductor, the clamping member of the terminal, and the flange of the support rail, by means of a lower arm of the clamping member. To facilitate access to the clamping screw in the case of a terminal block with stacked terminals, the region of the terminal block housing containing the earth terminal may be laterally offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.