Patent ID: 6428869
Filing Date: 2002-08-06
Classification: H01F,Y10S,Y10T

Abstract:
An improved strip of flexible magnets made in accordance with the following method:providing a magnetic substrate including a magnetic material exhibiting a magnetic field sufficient to stick the flexible magnet to a metal surface, said substrate comprising an first side that is free of adhesive and a second side that is detachably adhered to a backing, passing the magnetic substrate and backing in front of a die with the first side of the magnetic substrate facing the die, the die being hollow and comprising a cutting edge that faces the first side of the magnetic backing, the cutting edge of the die defining an outline for a magnet, the die further comprising an interior filled with an internal ejector, pressing the cutting edge of the die and internal ejector against the first side of the magnetic substrate thereby cutting through the magnetic substrate but without cutting through the strip backing to create a cut magnet disposed on the strip backing, the cut magnet being at least partially surrounded by waste magnetic substrate, pulling the die away from the cut magnet while maintaining a pressing engagement between the internal ejector and the cut magnet so that the die is pulled away from the cut magnet without the cut magnet being pulled off the backing, pulling the internal ejector away from the cut magnet without pulling the cut magnet off the backing, moving the cut magnet laterally away from the die and moving uncut magnetic substrate and strip backing in front of the die, repeating the pressing and pulling steps, removing the waste magnetic substrate from the backing.