High energy density magnetic springs using spatially modulated magnetic fields technology
US9016446B2 · kind B2 · utility
4Cited by
3References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 20, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | May 9, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2222/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A magnetic spring utilizing spatially modulated magnetic field patterns of magnetic regions for both stator and slider, allowing custom force curves over the range of motion. Also disclosed is a magnetic spring whose slider can be rotated relative to the stator on the axis, such that the alignment of the spatially modulated magnetic field patterns of the slider and the stator is altered, resulting in changeable force curve for the spring, selected by rotating the slider.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.