Magnetizing Printer and Method for Re-Magnetizing at Least a Portion of a Previously Magnetized Magnet

• US 20140299668A1
• Filed: 05/09/2014
• Published: 10/09/2014
• Est. Priority Date: 06/02/2009
• Status: Active Grant

• Current Assignee: Correlated Magnetics Research, LLC
• Original Assignee: Correlated Magnetics Research, LLC
• Inventors: Fullerton, Larry W., Roberts, Mark D.
• Granted Patent: US 9,367,783 B2
• Time in Patent Office: Days
• US Class Current: 235/493
• CPC Class Codes: G01D 18/00 Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
• CPC Class Codes: G06K 19/06187 with magnetically detectable marking
• CPC Class Codes: G06K 2019/06281 rewritable
• CPC Class Codes: H01F 13/003 Methods and devices for magnetising permanent magnets permanent magnets H01F7/02
• CPC Class Codes: H01F 7/02 Permanent magnets [PM]
• CPC Class Codes: H01F 7/0242 Magnetic drives, magnetic coupling devices
• CPC Class Codes: H01F 7/0273 Magnetic circuits with PM for magnetic field generation
• CPC Class Codes: H01F 7/0284 using a trimmable or adjustable magnetic circuit, e.g. for a symmetric dipole or quadrupole magnetic field
• CPC Class Codes: H02K 15/03 having permanent magnets
• CPC Class Codes: H02K 21/24 with magnets axially facing the armatures, e.g. hub-type cycle dynamos
• CPC Class Codes: H02K 49/10 of the permanent-magnet type
• CPC Class Codes: Y10T 29/4902 Electromagnet, transformer or inductor

Abstract

A magnetizing printer and a method are described herein for printing one or more magnetic sources (maxels) having a first polarity onto a side of a previously magnetized magnet having an opposite polarity.

Claims

1. A magnetizing printer adapted to re-magnetize at least a portion of a previously magnetized magnet, the magnetizing printer comprising:

a magnetizer print head configured to print one or more magnetic sources having a first polarity at one or more locations on a side of the previously magnetized magnet having an opposite polarity.

2. The magnetizing printer of claim 1, wherein the magnetizer print head is further configured to print one or more magnetic sources having the opposite polarity at one or more locations on the side of the previously magnetized magnet.

3. The magnetizing printer of claim 2, wherein the magnetizer print head is controlled to print the magnetic sources to have alternate polarities, randomized polarities, predefined codes, correlative codes, or some combination thereof on the side of the previously magnetized magnet.

4. The magnetizing printer of claim 2, wherein the magnetizer print head is controlled to print the magnetic sources where each of the magnetic sources has a desired field amplitude, shape, size, or some combination thereof on the side of the previously magnetized magnet.

5. The magnetizing printer of claim 1, wherein the magnetizer print head comprises a plurality of layers connected together to form an inductor coil, and wherein the plurality of layers have a hole extending there through,

6. The magnetizing printer of claim 5, wherein the plurality of layers are soldered together or welded together.

7. The magnetizing printer of claim 1, wherein the previously magnetized magnet is a conventional magnet.

8. The magnetizing printer of claim 1, further comprising a movement handler configured to move the magnetizer print head while the previously-magnetized magnet remains in a fixed position.

9. The magnetizing printer of claim 1, further comprising a movement handler configured to move the previously-magnetized magnet while the magnetizer print head remains in a fixed position.

10. The magnetizing printer of claim 1, further comprising a movement handler configured to move both the magnetizer print head and the previously-magnetized magnet in order for the magnetizer print head to print the one or more magnetic sources at the one or more locations on the side of the previously magnetized magnet.

11. A method implemented by a magnetizing printer for re-magnetizing at least a portion of a previously magnetized magnet, wherein the magnetizing printer comprising a magnetizer print head, and wherein the method comprises:

providing the previously magnetized magnet; and

printing, by the magnetizer print head, one or more magnetic sources having a first polarity at one or more locations on a side of the previously magnetized magnet having an opposite polarity.

12. The method of claim 11, further comprising:

printing, by the magnetizer print head, one or more magnetic sources having the opposite polarity at one or more locations on the side of the previously magnetized magnet.

13. The method of claim 12, wherein the printing operations comprise printing the magnetic sources to have alternate polarities, randomized polarities, predefined codes, correlative codes, or some combination thereof on the side of the previously magnetized magnet.

14. The method of claim 12, wherein the printing operations comprise printing the magnetic sources where each of the magnetic sources has a desired field amplitude, shape, size, or some combination thereof on the side of the previously magnetized magnet.

15. The method of claim 11, wherein the magnetizer print head comprises a plurality of layers connected together to form an inductor coil, and wherein the plurality of layers have a hole extending there through,

16. The method of claim 15, wherein the plurality of layers are soldered together or welded together.

17. The method of claim 15, wherein the previously magnetized magnet is a conventional magnet.

18. The method of claim 11, wherein the magnetizing printer further comprises a movement handler which is controlled to move the magnetizer print head while the previously-magnetized magnet remains in a fixed position.

19. The method of claim 11, wherein the magnetizing printer further comprises a movement handler which is controlled move the previously-magnetized magnet while the magnetizer print head remains in a fixed position.

20. The method of claim 11, wherein the magnetizing printer further comprises a movement handler which is controlled to move both the magnetizer print head and the previously-magnetized magnet in order for the magnetizer print head to print the one or more magnetic sources at the one or more locations on the side of the previously magnetized magnet.