Magnetic attachment system

• US 9,105,380 B2
• Filed: 03/05/2014
• Issued: 08/11/2015
• Est. Priority Date: 04/04/2008
• Status: Expired due to Fees

• Current Assignee: Correlated Magnetics Research, LLC
• Original Assignee: Correlated Magnetics Research, LLC
• Inventors: Moore, Hamilton G., Haines, IV, Prentiss W., Fullerton, Larry W., Roberts, Mark D.
• Primary Examiner(s): BARRERA, RAMON M
• Application Number:
  US14/198,191
• Publication Number:
  US 20140182088A1
• Time in Patent Office: 524 Days
• US Class Current: 1/1
• CPC Class Codes: A41F 1/002 Magnetic fastening devices
• CPC Class Codes: A44D 2203/00 Fastening by use of magnets
• CPC Class Codes: A45C 13/1069 magnetic
• CPC Class Codes: A45F 5/02 Fastening articles to the garment
• CPC Class Codes: A45F 5/022 within pockets
• CPC Class Codes: B42F 1/00 Sheets temporarily attached together without perforating; Means therefor
• CPC Class Codes: B42F 1/06 of flat cross-section , e.g. made of a piece of metal sheet
• CPC Class Codes: G09F 7/04 the elements being secured or adapted to be secured by magnetic means
• CPC Class Codes: H01F 7/00 Magnets superconducting magnets H01F6/00; for separation of solid materials or fluids B03C1/00; for bench or like work-holders B23B31/28, B23Q3/00; work-holding devices B25B11/00; lifting magnets B66C1/00; operating or controlling locks using permanent magnets E05B47/0038; devices for holding a wing, e.g. door or window, by magnetic or electromagnetic attraction E05C19/16; relieving load or bearings using magnetic means F16C39/06 ; for electric meters G01R; for relays H01H; for electric discharge tubes H01J, e.g. H01J3/24, H01J23/10, H01J29/68 ; for dynamo-electric machines H02K
• CPC Class Codes: H01F 7/0242 Magnetic drives, magnetic coupling devices
• CPC Class Codes: H01F 7/0252 PM holding devices H01F7/021, H01F7/0215, H01F7/0226 take precedence
• CPC Class Codes: H01F 7/0263 Closures, bags, bands, engagement devices with male and female parts
• CPC Class Codes: H01F 7/04 Means for releasing the attractive force
• CPC Class Codes: Y10T 24/32 having magnetic fastener

Abstract

An improved magnetic attachment system involves a female component that is associated with a first object and a male component that is associated with a second object. The female component includes a hole and a first magnetic structure having a first plurality of magnetic source regions having a first polarity pattern. The male component includes a peg that can be inserted into the hole and a second magnetic structure having a second plurality of magnetic source regions having a second polarity pattern complementary to said first polarity pattern. The male and female component are configured such that when the peg is inserted into the hole the first and second magnetic structures face each other across an interface boundary enabling magnetic attachment of the first object to the second object, where while the peg remains inserted within the hole the male component can be rotated relative to the female component but translational movement of the male component relative to the female component is constrained.

Claims

1. A magnetic attachment system, comprising:

a female component associated with a first object, said female component comprising;

a hole; and

a first magnetic structure having a first plurality of magnetic source regions having a first polarity pattern; and

a male component associated with a second object, said male component comprising;

a peg that can be inserted into said hole; and

a second magnetic structure having a second plurality of magnetic source regions having a second polarity pattern complementary to said first polarity pattern, wherein said male component and said female component are configured such that when said peg is inserted into said hole the first and second magnetic structures face each other across an interface boundary enabling magnetic attachment of said first object to said second object, wherein while said peg remains within said hole said male component can be rotated relative to said female component but translational movement of said male component relative to said female component is constrained, wherein said first polarity pattern and said second polarity pattern are in accordance with a cyclic implementation of a code of length N, wherein said code has a cyclic correlation function having a single peak and a plurality of off peaks per code modulo.

2. The magnetic attachment system of claim 1, wherein said first and second polarity patterns are irregular polarity patterns.

3. The magnetic attachment system of claim 1, wherein said first and second magnetic structures produce a peak attract force when in a complementary rotational alignment position, said peak attract force magnetically attaching said first object to said second object.

4. The magnetic attachment system of claim 1, wherein said first and second magnetic structures produce an off-peak force that is an attract force less than the peak attract force when the male component has been rotated relative to the female component plus or minus 360/N degrees from the complementary rotational alignment position and said cyclic implementation of said code includes only one code modulo of said code.

5. The magnetic attachment system of claim 1, wherein said first and second magnetic structures produce an off-peak force that is a substantially zero force when the male component has been rotated relative to the female component plus or minus 360/N degrees from the complementary rotational alignment position and said cyclic implementation of said code includes only one code modulo of said code.

6. The magnetic attachment system of claim 1, wherein said first and second magnetic structures produce an off-peak force that is a repel force when the male component has been rotated relative to the female component plus or minus 360/N degrees from the complementary rotational alignment position and said cyclic implementation of said code includes only one code modulo of said code.

7. The magnetic attachment system of claim 1, wherein said code is a Barker code.

8. The magnetic attachment system of claim 1, wherein each symbol of said code is implemented with one of a region having a first polarity or a region having a second polarity.

9. The magnetic attachment system of claim 1, wherein each symbol of said code is implemented with an irregular polarity pattern.

10. The magnetic attachment system of claim 1, wherein each symbol of said code is a Barker code.

11. The magnetic attachment system of claim 1, wherein each symbol of said code is implemented with alternating polarity regions.

12. The magnetic attachment system of claim 11, wherein one polarity region is rotated relative to another polarity region.

13. The magnetic attachment system of claim 11, wherein polarities of opposing regions of the first and second magnetic structures are exchanged.

14. The magnetic attachment system of claim 1, wherein one of said first object or said second object is one of a flashlight, a strap, an electronic device, a cell phone, a PDA, a camera, a GPS, a sign, a picture, a fire extinguisher, or a rod holder.

15. The magnetic attachment system of claim 1, wherein one of said first object or said second object is one of a wall, a vehicle, or a garment.

16. The magnetic attachment system of claim 1, wherein at least one of said male component or said female component comprises at least one of attachment holes enabling attachment to at least one of said first object or said second object using a nail or screw, an adhesive enabling attachment to at least one of said first object or said second object, rounded edges, first notches providing a hand grip, at least one marking for identifying one or more alignment positions, or at least one second notch for removing said at least one of said first magnetic structure or said second magnetic structure using a tool.

17. The magnetic attachment system of claim 1, wherein said male component is integrated with said first object.

18. The magnetic attachment system of claim 1, wherein said female component is integrated with said second object.

19. The magnetic attachment system of claim 1, wherein one of said male component or said female component is placed inside a pocket of a garment.

20. The magnetic attachment system of claim 1, wherein one of said male component or said second component is integrated into one of a sleeve, a shoulder portion of a garment, a belt, a hat, a knapsack, or a shoe.