Eddy current brake system with dual use conductor fin
AssigneeMagnetar Technologies, Inc.
InventorEdward M. Pribonic
Life of this patent
Estimating the term…
Abstract
An eddy current brake system with dual use conductive fin includes a linear array of spaced apart permanent magnets and a non-magnetic electrically conductive fin. The magnets are mounted with respect to the fin for enabling passage past one another at a distance sufficient to cause eddy currents to be induced resulting in a braking force between the magnets and the fin. A mechanical brake is provided for frictionally engaging the fin and a surface treatment of the fin and enables the fin to sustain mechanical abuse of friction without effecting a change in the eddy current braking.
Claims21
A brake system comprising:
- a linear array of spaced apart permanent magnets;
- a non-magnetic electrically conductive fin;
- means mounting the magnets with respect to the fin for enabling passage past one another at a distance sufficient to cause eddy currents to be induced in the fin resulting in a braking force between the magnets and the fin;
- a mechanical brake for frictionally engaging the fin;
- and
- a surface treatment on the fin for enabling the fin to sustain mechanical abuse of friction without effecting a change of electrical conductivity of the fin.
A brake system comprising:
- a linear array of spaced apart permanent magnets;
- a non-magnetic electrically conductive fin;
- means mounting the magnets with respect to the fin for enabling, passage past one another at a distance sufficient to cause eddy currents to be induced in the fin resulting in a braking force between the magnets and the fin;
- a mechanical brake for frictionally engaging the fin;
- and
- a surface treatment on the fin for enabling the fin to sustain mechanical abuse of friction without effecting a change in the induced eddy currents.
A brake system comprising:
- a stationary linear array of spaced apart permanent magnets;
- a single non-magnetic electrically conductive fin disposed on a moveable car;
- means mounting the magnets for enabling passage of the fin thereby at a distance sufficient to cause eddy currents to be induced in the fin resulting in a braking force between the magnets and the fin;
- a mechanical brake for frictionally engaging the fin;
- and
- a surface treatment on the fin for enabling the fin to sustain mechanical abuse of friction without effecting a change of electrical conductivity of the fin.
Dependencies are inferred from the claim text.