Contact spring
US4702545A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1986 |
| Grant date | Oct 27, 1987 |
| Priority date | — |
| Expiry date | Dec 12, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/115
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A contact spring is formed of a strip of spring sheet metal which is divided at one end into at least two and preferably three parallel webs, the two outer webs being longer and bent-back in a U-shape and connected at their free ends to one another by a cross piece which is immediately the U-shaped bend. The cross piece realizes a first contact surface while the shorter middle web has its free end residing opposite the cross piece to form a second contact surface. In the nonbent condition, the contact surfaces lie in the same region and are closely adjacent one another so that a band of spring sheet metal which includes a precious metal layer at only one side in a narrow region of the contact surfaces can be used to manufacture the contact springs. When two webs are provided, a longer one has a transverse arm and is bent-back adjacent the end of the shorter web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.