Switch and manufacturing method thereof
US7365280B2 · kind B2 · utility
7Cited by
25References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2005 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Nov 20, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H13/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switch provided with a fixed contact and a movable contact coming into contact with each other and separating from each other. The surface of at least one of the fixed contact and the movable contact is provided with a plurality of recesses whose edges are overlapped with each other, and also provided with a plurality of projections. The projections formed on the contact surface have sharp-pointed tips which can break an oxide film or the like if it is formed on the contact surface, thereby achieving stable contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.