Magnetically coupled pump and impeller assembly therefor
US4152099A · kind A · utility
39Cited by
10References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 1977 |
| Grant date | May 1, 1979 |
| Priority date | — |
| Expiry date | May 31, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/7052
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Described is a magnetically coupled pump and an impeller assembly therefor. In a magnetically coupled pump wherein the hub portion of a rotary impeller is inserted within the bore of a hollow cylindrical driven magnet to be rotated by a surrounding annular driving magnet, the hub portion of the impeller is provided with a deformable projection. A tapered wedge is inserted into the bore to deform the projection and to attach the driven magnet to the hub. The tapered wedge is formed of graphite which also performs the function of a bushing upon which the impeller is rotated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.