Electromagnet lifting device
US4162471A · kind A · utility
6Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1977 |
| Grant date | Jul 24, 1979 |
| Priority date | — |
| Expiry date | Sep 9, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C1/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electromagnetic lifting device is provided with a pole piece of tapered or conical configuration extending outwardly from the load contacting surface of the magnet body. The tapered or conical configuration of the pole piece extends the effective magnetic flux pattern outwardly of the magnet body and also enables the pole piece to penetrate more readily into a collection of loose ferrous articles which are to be lifted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.