Universal terminal block connector
US4370018A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1980 |
| Grant date | Jan 25, 1983 |
| Priority date | — |
| Expiry date | Nov 13, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R4/307
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A terminal block connector uses a first nut having an internal thread of a first diameter and type and a second nut coaxially arranged therewith having an internal thread of a second diameter and type. To further the universality of the connector, the first thread may be an SAE thread while the second thread may be a metric thread, while the first diameter is always smaller than the second diameter. The first nut is arranged to cooperate with a first diameter machine screw while the second nut is arranged to cooperate with a second diameter machine screw. The two nuts are held rotationally captive in a coaxial recess in an electrically insulating block with the larger thread diameter second nut located at the entrance to the recess. The smaller thread diameter first nut is initially positioned beneath the large diameter second nut and in frictional engagement with the wall of the recess with a space between the first nut and the bottom of the recess. In an alternate embodiment, the recess is substantially longer than the combined thickness of the two nuts, and a spring is located between the internal end of the recess and the inner one of the two nuts to urge the nuts together and …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.