US Patent 9392829 Magnetic clasp device for clothing accessories

A device for magnetic clasping for a clothing accessory includes at least one permanently magnetized assembly arranged at one end of one surface of the accessory, while a plurality of ferromagnetic elements and/or permanently magnetized assemblies are arranged longitudinally on the other surface at the opposite end thereof. The magnetized assemblies of one surface are suitable for attracting a magnetized assembly of the other surface. The magnetized assemblies and/or ferromagnetic elements of each surface are arranged such that, by placing the ends of the surfaces vertically adjacent to one another, a plurality of adjustment positions of the surfaces are obtained relative to the position of the magnetized assemblies and ferromagnetic elements, representing a plurality of possible tightness levels. Each magnetized assembly of one surface engages with a magnetized assembly or a ferromagnetic element of the other surface in each one of the adjustment positions to close any magnetic field.