Magnetic attachment system

• US 8,698,583 B2
• Filed: 06/22/2012
• Issued: 04/15/2014
• Est. Priority Date: 04/04/2008
• Status: Expired due to Fees

• Current Assignee: Correlated Magnetics Research, LLC
• Original Assignee: Correlated Magnetics Research, LLC
• Inventors: Roberts, Mark D., Fullerton, Larry W.
• Primary Examiner(s): BARRERA, RAMON M
• Application Number:
  US13/530,856
• Publication Number:
  US 20120319808A1
• Time in Patent Office: 662 Days
• Field of Search: 335302-306, 243/03
• US Class Current: 335/306
• CPC Class Codes: H01F 41/02 for manufacturing cores, coils, or magnets H01F41/14 takes precedence; for dynamo-electric machines H02K15/00
• CPC Class Codes: H01F 7/0278 for generating uniform fields, focusing, deflecting electrically charged particles for magnetic separation by Lorentz force B03C1/023; specially adapted for NMR applications G01R33/383
• 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: H01L 27/0266 using field effect transistors as protective elements
• CPC Class Codes: H01P 11/00 Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
• CPC Class Codes: Y10T 24/32 having magnetic fastener
• CPC Class Codes: Y10T 29/49016 Antenna or wave energy "plumbing" making
• CPC Class Codes: Y10T 29/4902 Electromagnet, transformer or inductor
• CPC Class Codes: Y10T 29/49073 by assembling coil and core
• CPC Class Codes: Y10T 29/49075 including permanent magnet or core
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 29/49904 Assembling a subassembly, then assembling with a second subassembly
• CPC Class Codes: Y10T 29/53091 for work-holder for assembly or disassembly
• CPC Class Codes: Y10T 29/5313 Means to assemble electrical device
• CPC Class Codes: Y10T 29/53265 with work-holder for assembly

Abstract

An improved magnetic attachment system is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlation properties, which may be in accordance with a code. The correlation properties correspond to a desired spatial force function where spatial forces between field emission structures correspond to relative alignment, separation distance, and the spatial force function.

Claims

1. A magnetic attachment system, comprising:

a first magnetic structure comprising a first plurality of magnetic elements, said magnetic structure having a first side corresponding to an interface boundary for interfacing said first magnetic structure to a second magnetic structure having a second plurality of magnetic elements complementary to said first plurality of magnetic elements, said first magnetic structure having a second side opposite of said first side, said first magnetic structure and said second magnetic structure being in accordance with a spatial force function comprising a peak spatial force corresponding to alignment of said first magnetic structure and said second magnetic structure and a plurality of off peak forces corresponding to a plurality of misalignments of said first magnetic structure and said second magnetic structure, said plurality of off peak spatial forces comprising a plurality of release forces resulting from cancellation of at least one attract force by at least one repel force, each release force of said plurality of release forces being one of an attract force or a repel force; and

a first intermediate layer configured next to said first side of said first magnetic structure, said first intermediate layer being a magnetically inactive intermediate layer that suppresses spatial forces by separating said first magnetic structure and said second magnetic structure; and

a second intermediate layer configured next to said second side of said first magnetic structure, said second intermediate layer being a magnetically active intermediate layer.

2. The magnetic attachment system of claim 1, wherein side lobe effects are substantially shielded by said first intermediate layer.

3. The magnetic attachment system of claim 1, wherein said second intermediate layer comprises a magnetically saturable material.

4. The magnetic attachment system of claim 1, wherein said first plurality of magnetic elements produce a magnetic field corresponding to a Barker 4 sequence.

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

a movement constraining mechanism.

6. The magnetic attachment system of claim 5, wherein said movement constraining mechanism constrains movement of said first magnetic structure to one degree of freedom.

7. The magnetic attachment system of claim 6, wherein said first magnetic structure can move perpendicular to said interface boundary.

8. The magnetic attachment system of claim 5, wherein said movement constraining mechanism comprises one of more walls of a container.

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

a spring for controlling movement of said first magnetic structure.

10. The magnetic attachment system of claim 1, wherein said first magnetic structure is associated with a first object and said second magnetic structure is associated with a second object, said first magnetic structure and said second magnetic structure enabling attachment of said first object to said second object and detachment of said first object from said second object.

11. The magnetic attachment system of claim 10, wherein said second object is a cover.

12. The magnetic attachment system of claim 10, wherein said first object comprises one of a glass surface or a plastic surface.

13. The magnetic attachment system of claim 12, wherein said second object provides a covering of said glass surface or said plastic surface.

14. The magnetic attachment system of claim 1, wherein said first plurality of magnetic elements comprises the polarity pattern ‘

+−

+’

.

15. The magnetic attachment system of claim 1, wherein said first plurality of magnetic elements comprises the polarity pattern ‘

−

+−

’

.

16. The magnetic attachment system of claim 1, wherein said first plurality of magnetic elements comprises magnets having different widths.

17. The magnetic attachment system of claim 1, wherein said first plurality of magnetic elements is a linear sequence.

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

a hinge.

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

a third magnetic structure, said third magnetic structure comprising a third plurality of magnetic elements in a straight line with said first plurality of magnetic elements, said first magnetic structure and said third magnetic structure being separated by a spacing.

20. The magnetic attachment system of claim 19, wherein said third magnetic structure is the mirror image of said first magnetic structure.

21. The magnetic attachment system of claim 20, wherein said mirror image is rotated 180 degrees.