Miniature reversible motor
US4126796A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1976 |
| Grant date | Nov 21, 1978 |
| Priority date | — |
| Expiry date | Oct 15, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04C9/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A miniature reversible motor comprising a rotor having a plurality of magnetic pole pairs, and a stator having a pole face opposite the periphery of the rotor. A magnetic member of high permeability magnetic material is positioned proximate the periphery of the rotor and magnetically couples with the magnetic poles of the rotor for determining a direction of rotation of the rotor. A positioning mechanism is operable for changing the position of the magnetic member relative to the periphery of the rotor to change the direction of rotation of the rotor determined by the relative position of the magnetic member and the periphery of the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.