Electrostatic linear motor with deformable feet between a runner and a dielectric layer of a stator
US5898254A · kind A · utility
32Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1997 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Oct 16, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N1/006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electrostatic linear motor comprising a planar stator having a capacitive structure formed by a metal layer and a layer of dielectric material and a runner movable parallel to stator and carrying resiliently deformable projecting feet formed by a thin conductive film, arranged in rolling contact with the layer of dielectric material of the stator. The layer of dielectric material has a non-linear polarization versus the electric field applied by a source for supplying voltage pulses, and is preferably constituted by a film of ferroelectric material with a high value of dielectric permittivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.