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US 4,727,857 AGranted
Device for producing pulsating magnetic fields for therapeutic purposes
AssigneeDieter Rau
InventorAlois Horl
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AssigneeDieter Rau
InventorAlois Horl
Estimating the term…
A device for producing pulsating magnetic fields comprises a substrate rotatable about an axis and having disposed thereon at least one pair of magnets with a direction of magnetization substantially parallel to the rotational axis such that rotation of the substrate by 180.degree. about its rotational axis transfers the pole faces of the magnets into each other and that there exists no symmetry of the pole faces relative to a plane which includes the rotational axis. The orientation of the pole faces of the magnets is such that during rotation of the substrate, magnetic forces are exerted radially with respect to the axis about which the substrate is rotated by drive structure provided for that purpose. In accordance with various embodiments, the magnets may be disposed upon one or both sides of the substrate and may be of rectangular, arcuate, wedge-like or other plate-like configurations.
A device for producing pulsating magnetic fields for therapeutic purposes in which, on a substrate rotatable about an axis, at least one pair of magnets is disposed in such a way that first pole faces of opposite polarity, which face in one direction of the rotational axis and have a direction of magnetisation substantially parallel to the rotational axis at a surface thereof, are provided in such configuration and position that rotation of the substrate by 180 degrees about the rotational axis will substantially transfer the magnetic fields produced by the first pole faces into each other with a reversal of the field direction, wherein the first pole faces occupy only a minor portion of the angular range swept by them upon rotation of the substrate about the rotational axis and are arranged and shaped such that the field produced thereby at any time has no radial symmetry, i.e., has no plane including the rotational axis as the plane of symmetry.
A device for producing pulsating magnetic fields for therapeutic purposes comprising a carrier mounted for rotation about an axis, means for rotating the carrier about said axis, and at least one pair of magnets, wherein said magnets are disposed in a manner forming a means for exerting, upon rotation of said carrier about said axis, magnetic forces that are directed radially with respect to said axis and that produce a magnetic field which is at all times free of radial symmetry with respect to said axis, and wherein the magnets are positioned relative to each other in a manner such that, upon rotation of the carrier by 180 degrees about said axis, faces of said pair of magnets which are of opposite polarity and face in a common direction parallel to said axis will have exchanged placed.
Dependencies are inferred from the claim text.