System and method for providing a hold force to an object

• US 7,800,473 B2
• Filed: 10/01/2008
• Issued: 09/21/2010
• Est. Priority Date: 04/04/2008
• Status: Expired due to Fees

• Current Assignee: Correlated Magnetics Research, LLC
• Original Assignee: Cedar Ridge Research LLC
• Inventors: Roberts, Mark D., Fullerton, Larry W.
• Primary Examiner(s): Barrera, Ramon M
• Application Number:
  US12/243,881
• Publication Number:
  US 20090251245A1
• Time in Patent Office: 720 Days
• Field of Search: 335/285, 335302-306, 243/03, 310/90.5
• 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 field emission system and method 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 system for providing a hold force to an object, said system comprising:

a first field emission structure associated with said object, said first field emission structure having first field emission properties in accordance with a first code; and

a second field emission structure associated with a surface, said second field emission structure having second field emission properties in accordance with a second code, said first emission structure and said second emission structure providing a hold force between said object and said surface, said first code and said second code corresponding to a spatial force function, said first code corresponding to a code modulo of said first field emission structure and said second code corresponding to a code modulo of said second field emission structure, said first code and said second code defining a peak spatial force corresponding to substantial alignment of said code modulo of said first field emission structure with said code modulo of said second field emission structure, said first code and said second code also defining a plurality of off peak spatial forces corresponding to a plurality of different misalignments of said code modulo of said first field emission structure and said code modulo of said second field emission structure, said plurality of off peak spatial forces having a largest off peak spatial force, said largest off peak spatial force being less than half of said peak spatial force.

2. The system of claim 1, wherein at least one of said field emission structure and said second field emission structure comprises one of a magnetic field emission structure or an electric field emission structure.

3. The system of claim 1, wherein said second field emission structure comprises a mirror image of said first field emission structure.

4. The system of claim 1, wherein said surface is a rotary surface.

5. The system of claim 1, wherein said object comprises one of a disc, a wheel, a cylinder, a sphere, a conveyor belt, or a tracked structure.

6. The system of claim 1, wherein said surface is made of one of hard plastic, glass, stainless steel, or tungsten carbide.

7. The system of claim 1, wherein said object is turned by one of a motor or an array of electromagnets.

8. The system of claim 1, wherein said object and said surface achieve partial correlation when said object becomes in contact with said surface.

9. The system of claim 1, wherein said first field emission structure and said second field emission structure provide a frictionless hold force between said object and said surface.

10. A method for providing a hold force to an object, said method comprising the steps of:

associating a first field emission structure with said object, said first field emission structure having first field emission properties in accordance with a first code; and

associating a second field emission structure with a surface, said second field emission structure having second field emission properties in accordance with a second code, said first emission structure and said second emission structure providing a hold force between said object and said surface, said first code and said second code corresponding to a spatial force function, said first code corresponding to a code modulo of said first magnetic field emission structure and said second code corresponding to a code modulo of said second magnetic field emission structure, said first code and said second code defining a peak spatial force corresponding to substantial alignment of said code modulo of said first magnetic field emission structure with said code modulo of said second magnetic field emission structure, said first code and said second code also defining a plurality of off peak spatial forces corresponding to a plurality of different misalignments of said code modulo of said first magnetic field emission structure and said code modulo of said second magnetic field emission structure, said plurality of off peak spatial forces having a largest off peak spatial force, said largest off peak spatial force being less than half of said peak spatial force.

11. The method of claim 10, wherein at least one of said field emission structure and said second field emission structure comprises one of a magnetic field emission structure and an electric field emission structure.

12. The method of claim 10, wherein said second field emission structure comprises a mirror image of said first field emission structure.

13. The method of claim 10, wherein said surface is a rotary surface.

14. The method of claim 10, wherein said object comprises one of a disc, a wheel, a cylinder, a sphere, a conveyor belt, or a tracked structure.

15. The method of claim 10, wherein said surface is made of one of hard plastic, glass, stainless steel, or tungsten carbide.

16. The method of claim 10, further comprising:

turning said object using one of a motor or an array of electromagnets.

17. The method of claim 10, wherein said object and said surface achieve partial correlation when said object becomes in contact with said surface.

18. The method of claim 10, wherein said first field emission structure and said second field emission structure provide a frictionless hold force between said object and said surface.