Electromagnetic relay
US7157994B2 · kind B2 · utility
3Cited by
0References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2005 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Aug 19, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2050/365
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
For manufacturing a thin electromagnetic relay having desired attractive force, both arms as upstanding portions disposed at both ends of a barrel of a plate magnetic material which is punched to be substantially U-shaped as viewed from the front by press working are bended to form magnetic poles having magnetic-pole surfaces extending in a horizontal direction. A vertical face passing through the center of the barrel crosses the centers of the magnetic-pole surfaces at right angles. The width of the barrel is smaller than the height of the barrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.