Patent ID: 7961068

Claim:
A breakaway system for attaching and detaching two objects, comprising: a first magnetic field structure attached to a first object; and a second magnetic field structure attached to a second object, said first magnetic field structure attaching to the second magnetic field structure when substantially aligned, said first magnetic field structure and the second magnetic field structure becoming detached when subjected to a breakaway force that overcomes a spatial force between the first magnetic field structure and the second magnetic field structure, said first magnetic field structure having first magnetic field sources, and said second magnetic field structure having second magnetic field sources, said first magnetic field sources and said second magnetic field sources having polarities and positions in accordance with a code corresponding to a spatial force function, wherein said spatial force function is in accordance with the code, said code corresponding to a code modulo of said first magnetic field sources and a complementary code modulo of second magnetic field sources, said code defining a peak spatial force corresponding to substantial alignment of the code modulo of the first magnetic field sources with the complementary code modulo of the second magnetic field sources, said code also defining a plurality of off peak spatial forces corresponding to a plurality of different misalignments of the code modulo of the first magnetic field sources and the complementary code modulo of the second magnetic field sources, said plurality of off peak spatial forces have a largest off peak spatial force, said largest off peak spatial force being less than half of the peak spatial force.