"""Contact arrangement for a relay"""
US4937544A · kind A · utility
16Cited by
4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1988 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Dec 12, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2047/003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A contact arrangement has a contact spring which is prestressed against a seating edge of an actuation element by a prestress bend. The pre-stress bend lies at an angle of between 0 through 30 degrees relative to the seating edge so that roll-off is produced at the contact location. Such contact arrangement is especially advantageous for switching high-current loads since roll-off at the contact location reduces the welding tendency and makes an easier break-open of the contact when the contact is opening if there is a slight welding of the contacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.