Permanent magnet
US3992689A · kind A · utility
10Cited by
1References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 28, 1975 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Jul 28, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/0252
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnet latch assembly for engagement with a flat plate or the like includes a permanent magnet and a surrounding ferromagnetic armature. The parts of the assembly are of an improved construction which facilitates economical assembly procedures and reduces the chances of malfunctioning in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.