Granted Patent B2

US 8,810,348 · App. 14/045,756 · Granted Aug 19, 2014

Inventors: Larry W. Fullerton (New Hope, AL); Jacob S. Zimmerman (St. Paul, MN); Robert S. Evans (Austin, TX); Mark D. Roberts (Huntsville, AL)

Assignee: Correlated Magnetics Research, LLC.

H01F7/021H01F13/003

Abstract

Claims (23)

1. A magnetic structure having multiple poles, comprising:

a first polarity region magnetized to have a first polarity;

a second polarity region magnetized to have a second polarity; and

a polarity transition boundary, said first polarity region having at least one reinforcing maxel having said first polarity that was printed alongside said polarity transition boundary and said second polarity region having at least one reinforcing maxel having said second polarity that was printed alongside said polarity transition boundary.

2. The magnetic structure of claim 1 , wherein said at least one reinforcing maxel having said first polarity and said at least one reinforcing maxel having said second polarity change magnetic field characteristics across a polarity transition.

3. The magnetic structure of claim 2 , wherein the polarity transition has a steeper slope than the slope of the polarity transition of the magnetic structure without said at least one reinforcing maxel having said first polarity and said at least one reinforcing maxel having said second polarity.

4. The magnetic structure of claim 1 , wherein said at least one reinforcing maxel having said first polarity and said at least one reinforcing maxel having said second polarity enable more efficient use of magnetic material.

5. The magnetic structure of claim 1 , wherein said at least one reinforcing maxel having said first polarity and said at least one reinforcing maxel having said second polarity produce higher torque.

6. The magnetic structure of claim 1 , wherein said at least one reinforcing maxel having said first polarity comprises a round maxel.

7. The magnetic structure of claim 1 , wherein said at least one reinforcing maxel having said first polarity comprises an elongated maxel.

8. The magnetic structure of claim 7 , wherein said an elongated maxel is a rectangular maxel.

9. The magnetic structure of claim 1 , wherein said at least one reinforcing maxel having said first polarity comprises a first maxel that overlaps a second maxel.

10. The magnetic structure of claim 1 , wherein said at least one reinforcing maxel having said first polarity comprises a row of maxels.

11. The magnetic structure of claim 10 , wherein said row of maxels comprises maxels printed next to each other.

12. The magnetic structure of claim 1 , wherein said at least one reinforcing maxel having said first polarity comprises maxels having different sizes.

13. The magnetic structure of claim 1 , wherein said at least one reinforcing maxel having said first polarity comprises maxels having different shapes.

14. The magnetic structure of claim 1 , wherein said at least one reinforcing maxel having said first polarity comprises maxels having different amplitudes.

15. The magnetic structure of claim 1 , wherein said magnetic structure was produced by printing a maxel having said first polarity onto a side of a single pole magnet having said second polarity.

16. The magnetic structure of claim 1 , wherein said magnetic structure comprises three or more polarity regions.

17. The magnetic structure of claim 16 , wherein said three or more polarity regions have an irregular polarity pattern.

18. The magnetic structure of claim 17 , wherein said irregular polarity pattern is in accordance with a designed code.

19. The magnetic structure of claim 18 , wherein said designed code is a Barker code.

20. The magnetic structure of claim 16 , wherein said three or more polarity regions have an alternating polarity pattern.

Assignments (2)

Continuity (17)