Magnet-shunted systems and methods

• US 20070046408A1
• Filed: 08/30/2005
• Published: 03/01/2007
• Est. Priority Date: 08/30/2005
• Status: Abandoned Application

• Current Assignee: Youngtack Shim
• Original Assignee: Youngtack Shim
• Inventors: Shim, Youngtack
• Application Number:
  US11/213,686
• Publication Number:
  US 20070046408A1
• Time in Patent Office: Days
• US Class Current: 335/296
• CPC Class Codes: H01F 27/36 Electric or magnetic shields or screens movable for varying inductance H01F21/10
• CPC Class Codes: H01F 27/361 made of combinations of electrically conductive material and ferromagnetic material
• CPC Class Codes: H01F 27/363 made of electrically conductive material
• CPC Class Codes: H01F 27/366 made of ferromagnetic material
• CPC Class Codes: H01F 3/12 Magnetic shunt paths
• CPC Class Codes: H05K 9/0071 Active shielding

Abstract

The present invention relates to a magnet-shunted system for shielding a target from magnetic fields and waves. More particularly, the present invention relates to a magnet system including a path member and a magnet member having a magnet at least partially shielded by a magnetically permeable shunt member. The path member forms a path through which the extrinsic magnetic fields and waves bypass the target, the magnet member serves as a termination point for the magnetic fields or waves, and the shunt member defines another path through which primary magnetic fields generated by the magnet member are confined very close to the shunt and/or magnet members. The present invention relates to various methods of forming the termination point, eliminating the extrinsic magnetic fields or waves by the magnet, and disposing the magnet member into the path member. The present invention also relates to various processes for providing such a magnet-shunted system including the foregoing magnet and path members along with the optional shunt member.

Claims

1. A magnet-shunted system for rerouting extrinsic magnetic fields and waves propagating to a target away therefrom and also for rerouting device magnetic fields and waves generated by one of an electric, electronic, and magnetic device away from said target comprising:

at least one magnet member having at least one of a permanent magnet and an electromagnet each of which is configured to define at least one one N pole and S pole therein; and

at least one path member which is configured to be magnetically permeable, to be magnetically coupled to said magnet member, to absorb thereinto at least one of said extrinsic and device magnetic fields and waves, and to reroute said one of said extrinsic and device magnetic fields and waves to at least one of said poles of said magnet member,

whereby said one of said fields and waves are absorbed by said path member, to be rerouted toward said magnet member, and eliminated by at least one of said poles of said magnet member.

2. The system of claim 1, wherein at least a substantial portion of said path member is configured to exhibit a relative magnetic permeability greater than a preset value.

3. The system of claim 2, wherein said preset value of said relative magnetic permeability is one of 100, 200, 300, 500, 1,000, 2,000, 3,000, 5,000, 10,000, 20,000, 30,000, 50,000, 100,000, 200,000, 300,000, 500,000, and 1,000,000.

4. The system of claim 1, wherein said magnet member is configured to consist of at least one of a plurality of pellets, particles, granules, powders, filings, fibers, filaments, flakes, and fragments each having a dimension ranging from one nanometer to one millimeter.

5. The system of claim 4, wherein said magnet member is configured to define a shape of one of a sphere, an ellipsoid, a cylinder, a filament, a fiber, a flake, a strip, and a slab.

6. The system of claim 1, wherein said path member is configured to form a phase of at least one of a liquid, a gel, and a powder.

7. The system of claim 6, wherein said path member is configured to have shapes of at least one of a sphere, an ellipsoid, a cylinder, a filament, a fiber, a flake, a strip, a sheet, a foil, a slab, a mesh, a screen, a yarn, a filing, and a fabric.

8. The system of claim 6, wherein said magnet and path members are configured to be mixed and to form a mixture which is capable of being in a phase of at least one of a solution, a gel, an emulsion, a suspension, a slurry, and a powder.

9. The system of claim 8, wherein said mixture is configured to be coated over at least a portion of said device.

10. The system of claim 8, wherein said mixture is configured to be fabricated into at least one of a sheet, a foil, a tape, a mesh, and a screen, and to be disposed over at least a portion of said device.

11. The system of claim 8, wherein said magnet member is configured to be greater than said path member, wherein said device is configured to include a casing which defines at least one indentation thereon, wherein said path member is configured to be coated over at least a portion of said casing, and wherein said magnet member is configured to be disposed in said indentation and to magnetically couple with said path member.

12. The system of claim 8 further comprising at least one base, wherein said base is configured to be less magnetically permeable than said path member and to then be incorporated into at least one of said magnet and path members.

13. A magnet-shunted system forming a preset number of portions each of which includes at least one magnetically permeable material for rerouting magnetic fields and waves emitted from a source of electromagnetic waves away from a target comprising:

at least one path member which is configured to define said preset number of said portions, to include said material, and to absorb said magnetic fields and waves thereinto; and

at least one magnet member which is configured to have at least one permanent magnet which is configured to define at least one N pole and S pole thereon, and to magnetically couple with at least two of said portions of said path member,

whereby said at least two of said portions of said path member is configured to be separated away from the rest of said path member while including at least a portion of said magnet member, to receive said magnetic fields and waves from said path member, and to eliminate said magnetic fields and waves in at least one of said poles of said at least a portion of said magnet member.

14. The system of claim 13, wherein at least a portion of said magnet member is also configured to extend along at least one dimension of said path member and to magnetically couple with said at least two of said portions thereof, whereby each of said at least two of said portions of said path member is configured to be separated away from the rest of said path member while including therein at least a portion of said magnet member, to receive said magnetic fields and waves from said path member, and to eliminate said magnetic fields and waves in at least one of said poles of said at least a portion of said magnet member.

15. The system of claim 13 further comprising at least one shunt member which is configured to be magnetically permeable, to enclose at least a portion of said magnet member, and to allow said path member to magnetically couple with said magnet member one of directly and indirectly therethrough.

16. The system of claim 15, wherein said magnet member is configured to generate therearound primary magnetic fields and wherein said shunt member is configured to confine a preset portion of said primary magnetic fields within a preset distance therefrom.

17. The system of claim 13, wherein at least a portion of said path member is configured to include a plurality of openings and wherein a ratio of a total area of said openings to a total area of the rest of said path member is configured to be in the range of about 1,000, 100, 10, and 1.0.

18. The system of claim 13, wherein said members are configured in such a way that a ratio of an area of said path member to an area of said magnet member in each separated portions is configured to be greater than one of about 100, 10, 5, and 1.

19. A method of minimizing permanent magnetization of a magnetically permeable path member for rerouting extrinsic magnetic fields and waves propagating to a target away therefrom comprising the steps of:

disposing at least one magnetically permeable path member between a source of said waves and said target;

magnetically coupling said path member with one polarity of a magnet member;

absorbing said fields and waves with said path member;

rerouting said magnetic fields and waves to one of said poles of said magnet member, thereby eliminating said waves in said magnet member; and

moving at least one of said magnet and path members with respect to the other thereof so as to couple said path member to an opposite pole of said magnet member, thereby preventing said path member from being permanently magnetized into a polarity of said one of said poles.

20. The method of claim 19, wherein said moving comprising at least one of the steps of:

translating said at least one of said members over the other thereof;

pivoting said at least one of said members about the other thereof; and

rotating said at least one of said members around the other thereof.