Magnetic wheel
First Claim
1. Magnetic apparatus comprising (a) one or more switchable permanent magnet devices as a source of magnetic flux exhibiting a N- and a S-pole, (b) at least two oppositely polarizable pole extension bodies associated with the N- and S-pole, respectively, of the magnetic flux source, and (c) a support structure at which the at least one switchable permanent magnet device is mounted in stationary manner, wherein the pole extension bodies are cup-shaped wheel or roller members with an outer annular surface and are held rotatable about respective axes of rotation at the support structure, and wherein the N- and S-poles extend physically into an interior of the respectively associated one of the cup-shaped wheel or roller members, whereby when a counter body having ferromagnetic properties is brought into magnetic contact with the peripheral surface of the rotatable pole extension bodies, an external flux path for the magnetic flux from the at least one switchable permanent magnet device is provided.
0 Assignments
0 Petitions
Accused Products
Abstract
Magnetic circuit that has (a) a source of magnetic flux which includes an electromagnet or one or more permanent magnets, (b) at least two oppositely polarizable pole extension bodies associated with the magnetic flux source, the bodies being disc, wheel, roller or similarly shaped with an outer circumferential surface and held rotatable about respective axes of rotation, and (c) a ferromagnetic counter body which is arranged to cooperate with the pole extension bodies such as to provide an external flux path for the magnetic flux when in magnetic proximity or contact with the circumferential surface of the pole extension bodies, which is characterized in that the magnetic flux source is held stationary relative to the rotatable pole extension bodies.
-
Citations
22 Claims
- 1. Magnetic apparatus comprising (a) one or more switchable permanent magnet devices as a source of magnetic flux exhibiting a N- and a S-pole, (b) at least two oppositely polarizable pole extension bodies associated with the N- and S-pole, respectively, of the magnetic flux source, and (c) a support structure at which the at least one switchable permanent magnet device is mounted in stationary manner, wherein the pole extension bodies are cup-shaped wheel or roller members with an outer annular surface and are held rotatable about respective axes of rotation at the support structure, and wherein the N- and S-poles extend physically into an interior of the respectively associated one of the cup-shaped wheel or roller members, whereby when a counter body having ferromagnetic properties is brought into magnetic contact with the peripheral surface of the rotatable pole extension bodies, an external flux path for the magnetic flux from the at least one switchable permanent magnet device is provided.
Specification