Encapsulated magnet for magnetic drive
US4414523A · kind A · utility
20Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 4, 1981 |
| Grant date | Nov 8, 1983 |
| Priority date | — |
| Expiry date | Sep 4, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C15/0069
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
One of the annular magnets used in a magnetic drive for pumps and other devices is enclosed on the outside in a thin metal jacket. The jacket and the interior of the magnet and preferably one end thereof are filled with a plastic material which is apertured to receive the shaft on which the magnet is to be mounted. Means is provided in the plastic material for balance weights. The jacket and plastic are impervious to fluids being pumped so that the fluids are not contaminated and the magnet is not attacked by the fluids. A preferred method of making the combination is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.