Magnetic attachment system

• US 8,339,226 B2
• Filed: 06/13/2012
• Issued: 12/25/2012
• Est. Priority Date: 04/04/2008
• Status: Expired due to Fees

• Current Assignee: Correlated Magnetics Research, LLC
• Original Assignee: Correlated Magnetics Research, LLC
• Inventors: Fullerton, Larry W., Roberts, Mark, Richards, James Lee
• Primary Examiner(s): BARRERA, RAMON M
• Application Number:
  US13/517,555
• Publication Number:
  US 20120246885A1
• Time in Patent Office: 195 Days
• Field of Search: 335/285, 335302-306, 243/03
• US Class Current: 335/285
• CPC Class Codes: G09F 7/04 the elements being secured or adapted to be secured by magnetic means
• CPC Class Codes: H01F 7/0263 Closures, bags, bands, engagement devices with male and female parts
• CPC Class Codes: Y10T 24/32 having magnetic fastener
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 29/4998 Combined manufacture including applying or shaping of fluent material

Abstract

A magnetic attachment system for attaching a first object to a second object. A first magnet structure is attached to the first object and a second magnet structure is attached to the second object. The first and second objects are attached by virtue of the magnetic attraction between the first magnet structure and second magnet structure. The magnet structures comprise magnetic elements arranged in accordance with patterns based on various codes. In one embodiment, the code has certain autocorrelation properties. In further embodiments the specific type of code is specified. In a further embodiment, an attachment and a release configuration may be achieved by a simple movement of the magnet structures. In a further embodiment, a magnetic attachment system may comprise one or more magnetic structures spaced from one another on a first support and configured for use with a complementary magnet system.

Claims

1. A magnetic attachment system, comprising:

a first magnetic structure comprising a first plurality of magnetic field sources arranged linearly and having a first polarity sequence; and

a second magnetic structure comprising a second plurality of magnetic field sources arranged linearly and having a second polarity sequence;

said first magnetic structure and said second magnetic structure being arranged in a straight line, said first magnetic structure and said second magnetic structure being separated by a spacing, said first polarity sequence being the second polarity sequence in reverse order;

said magnetic attachment system configured for producing a peak attractive force when aligned with a complementary magnetic attachment system where complementary magnetic field sources of said complementary magnetic attachment system are directly across an interface boundary from said first plurality of magnetic field sources and said second plurality of magnetic field sources of said magnetic attachment system, said peak attractive force resulting in a magnetic attachment of said magnetic attachment system to said complementary magnetic attachment system.

2. The magnetic attachment system of claim 1, wherein said magnetic system is configured such that when said magnetic attachment system is rotated 180 degrees on an axis perpendicular to a plane of said interface boundary and aligned relative to said complementary magnetic attachment system, a repelling force is produced.

3. The magnetic attachment system of claim 1, wherein said first plurality of magnetic field sources produces a magnetic field having a polarity sequence corresponding to a Barker length 4 code.

4. The magnetic attachment system of claim 1, wherein said second plurality of magnetic field sources produces a magnetic field having a polarity sequence corresponding to a Barker length 4 code.

5. The magnetic attachment system of claim 1, wherein said magnetic attachment system is used to attach a first object to a second object.

6. The magnetic attachment system of claim 5, wherein said first object provides a covering of said second object.

7. The magnetic attachment system of claim 5, wherein said second object comprises glass.

8. The magnetic attachment system of claim 1, wherein said first plurality of magnetic field sources comprises at least one magnet having a different physical size from another magnet of said first plurality of magnets.

9. The magnetic attachment system of claim 1, wherein said second plurality of magnetic field sources comprises at least one magnet having a different physical size from another magnet of said second plurality of magnets.

10. The magnetic attachment system of claim 1, wherein said first plurality of magnetic field sources are bonded together to act mechanically as a single piece.

11. The magnetic attachment system of claim 1, wherein said second plurality of magnetic field sources are bonded together to act mechanically as a single piece.

12. The magnetic attachment system of claim 1, wherein a relative motion of said first magnetic structure is mechanically constrained to a single degree of freedom.

13. The magnetic attachment system of claim 12, wherein said first magnetic structure can move perpendicularly to said interface boundary.

14. The magnetic attachment system of claim 12, wherein movement of said first magnetic structure is restricted by container walls.

15. The magnetic attachment system of claim 1, wherein a relative motion of said second magnetic structure is mechanically constrained to a single degree of freedom.

16. The magnetic attachment system of claim 15, wherein said second magnetic structure can move perpendicularly to said interface boundary.

17. The magnetic attachment system of claim 15, wherein movement of said second magnetic structure is restricted by container walls.

18. The magnetic attachment system of claim 1, wherein said first plurality of magnetic sources is an array of magnets.

19. The magnetic attachment system of claim 1, wherein said second plurality of magnetic sources is an array of magnets.

20. The magnetic attachment system of claim 1, further comprising:

a hinge.