System for detaching a magnetic structure from a ferromagnetic material

• US 9,202,615 B2
• Filed: 02/27/2013
• Issued: 12/01/2015
• Est. Priority Date: 02/28/2012
• Status: Active Grant

• Current Assignee: Correlated Magnetics Research, LLC
• Original Assignee: Correlated Magnetics Research, LLC
• Inventors: Fullerton, Larry W., Roberts, Mark D., Swift, Wesley, Zimmerman, Jacob S., Evans, R. Scott
• Primary Examiner(s): MUSLEH, MOHAMAD A
• Application Number:
  US13/779,611
• Publication Number:
  US 20130222091A1
• Time in Patent Office: 1,007 Days
• Field of Search: 335285-295
• US Class Current: 1/1
• CPC Class Codes: H01F 7/0257 Lifting, pick-up magnetic objects
• CPC Class Codes: H01F 7/04 Means for releasing the attractive force

Abstract

A detachment system includes a first piece of ferromagnetic material, a shunt plate, and at least one simple machine. The first piece of ferromagnetic material has a first side and a second side opposite the first side and has magnetically printed field sources that extend from the first side to the second side. The magnetically printed field sources have a first multi-polarity pattern. The first side of the first piece of ferromagnetic material is magnetically attached to a second piece of ferromagnetic material. The shunt plate is disposed on the second side of the first piece of ferromagnetic material. The shunt plate routes magnetic flux through the first piece of ferromagnetic material from the second side to the first side of the first ferromagnetic material. The at least one simple machine is configured to amplify an applied force into a detachment force to create an angled spacing between the first piece of ferromagnetic material and the second piece of ferromagnetic material.

Claims

1. A detachment system, comprising:

a first monolithic piece of ferromagnetic material having a first side, a thickness, and a second side opposite said first side, said first monolithic piece of ferromagnetic material comprising a first plurality of magnetic field sources magnetized through the thickness of said first monolithic piece of ferromagnetic material such that each magnetic field source of said first plurality of magnetic field sources extends from said first side to said second side, said first plurality of magnetic field sources having a first multi-polarity pattern on said first side, said first side of said first piece of ferromagnetic material being magnetically attached to a second monolithic piece of ferromagnetic material;

a shunt plate disposed on said second side of said first monolithic piece of ferromagnetic material, said shunt plate routing magnetic flux through said first monolithic piece of ferromagnetic material from said second side to said first side; and

at least one simple machine configured to amplify an applied force into a detachment force that creates an angled spacing between said first monolithic piece of ferromagnetic material and said second monolithic piece of ferromagnetic material.

2. The system of claim 1, further comprising:

a fixture attached to said first monolithic piece of ferromagnetic material.

3. The system of claim 2, further comprising:

a faceplate movably attached to said fixture that contacts said second monolithic piece of ferromagnetic material adjacent to said first monolithic piece of ferromagnetic material.

4. The system of claim 3, wherein said fixture is pivotably attached to said faceplate.

5. The system of claim 1, wherein said first monolithic piece of ferromagnetic material is permanent magnet material.

6. The system of claim 5, wherein said permanent magnet material is neodymium iron boride.

7. The system of claim 1, wherein said at least one simple machine comprises one or more levers.

8. The system of claim 1, wherein said at least one simple machine comprises a plurality of simple machines.

9. The system of claim 1, wherein said at least one simple machine comprises a wheel and axle.

10. The system of claim 9, wherein said wheel and axle is configured as a cam.

11. The system of claim 1, wherein said at least one simple machine comprises a pulley.

12. The system of claim 1, wherein said at least one simple machine comprises an inclined plane.

13. The system of claim 1, wherein said at least one simple machine comprises a screw.

14. The system of claim 1, wherein said at least one simple machine comprises a wedge.

15. The system of claim 1, further comprising:

a friction layer between said first monolithic piece of ferromagnetic material and said second monolithic piece of ferromagnetic material.

16. The system of claim 1, further comprising:

an automation device, said automation device producing said applied force.

17. The system of claim 16, wherein said automation device can be remotely activated.

18. The system of claim 16, wherein said automation device comprises a solenoid.

19. The system of claim 1, wherein said second monolithic piece of ferromagnetic material comprises a second plurality of magnetic field sources having a second multi-polarity pattern that is complementary to said first multi-polarity pattern.

20. The system of claim 1, further comprising:

said second monolithic piece of ferromagnetic material.