Electromagnetic vibratory exciter
US4719376A · kind A · utility
6Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1985 |
| Grant date | Jan 12, 1988 |
| Priority date | — |
| Expiry date | Oct 24, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electromagnetic vibratory exciter having a non-linear elastomeric compression spring mounted in four quadrants around an electromagnet. The spring having curved armature contact surfaces of different heights on laterally opposite adjacent quadrants for providing selectable non-linear stiffening and deflection rates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.