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US 5,345,207 AGranted
Magnet configuration with permanent magnets
AssigneeLeybold Aktiengesellschaft
InventorThomas Gebele
Life of this patent
Estimating the term…
Abstract
The invention relates to a magnet configuration with permanent magnets (5, 6) around a yoke (2, 3, 4) connecting these permanent magnets (5, 6). The magnetic field strength of this magnet configuration is varied thereby that in the region of the yoke (2, 3, 4) at least one rotatable body (8) is provided which comprises at least two spatially separated materials (9, 10) with different magnetic properties.
Claims14
A magnet configuration comprising:
- at least two permanent magnets (5, 6;
- 33, 35) having a distance from each other;
- a stationary yoke (2, 3, 4;
- 31, 32, 34) connecting first opposite poles of said at least two permanent magnets (5, 6;
- 33, 35), whereas second poles of said magnets (5, 6;
- 33, 35) having different polarity are bridged by magnetic field lines through a fluid;
- and
- at least one rotatable body (8, 12;
- 37, 38) being arranged in a region of said stationary yoke (2, 3, 4;
- 31, 32, 34) and being rotatable in said yoke without linear movement with respect to said yoke, said rotatable body (8, 12;
- 37, 38) comprising at least two spatially separated solid materials with different magnetic properties, said properties differing in dependence upon an angle of an index rotating around a central axis of the rotatable body.
8 more elements
Magnet configuration comprising:
- at least two permanent magnets (5, 6;
- 33, 35) having a distance from each other;
- a yoke (2, 3, 4;
- 31, 32, 34) connecting first opposite poles of said first at least two permanent magnets (5, 6;
- 33, 35), whereas second poles of said magnets (5, 6;
- 33, 35) having different polarity are bridged by magnetic field lines through a fluid;
- and
- two rotatable bodies (8, 12;
- 37, 38) being arranged in a region of said yoke (2, 3, 4;
- 31, 32, 34), said rotatable bodies (8, 12;
- 37, 38) each comprising at least two spatially separated solid materials, said two solid materials having different magnetic properties from each other over an entire length of each of said solid materials;
- and
- characterized in that:
- in the region of the yoke (2, 3, 4;
- 31, 32, 34) said two rotatable bodies (8, 12;
- 37, 38) are provided on which one body (12;
- 37) has a greater diameter than the other body (8;
- 38);
- said yoke is fixed;
- and
- said two rotatable bodies have the same surface shape and are arranged in parallel over lengths of said two rotatable bodies.
18 more elements
Dependencies are inferred from the claim text.