Device for articulating a moving blade pivoting on its base and a switch which comprises such a device
US4375055A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1981 |
| Grant date | Feb 22, 1983 |
| Priority date | — |
| Expiry date | Mar 18, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H29/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a device for articulating a moving blade pivoting on its base. The mobile member is constituted by a blade fixed to a float, which floats on a liquid contained in a cavity made in a base, the liquid being kept in the cavity by capillarity. The nature and dimensions of the float are adapted to the liquid density. The cavity dimensions are large enough to permit the float to move, without mechanical jamming. The mobile assembly, blade and float is prevented from escaping from the cavity by at least one bridge welded to the base towards the ends of the float. Application to switches with blades wetted by an electricity-conducting liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.