Magnetic controlled locking apparatus

An improved magnetically generated locking device having a key and a cylinder, the cylinder having a longitudinal axis and having a stator and a rotor, an interface being defined between the stator and the rotor, the rotor is rotatable by the key about the longitudinal axis of the cylinder, the improvement comprising:

• a plurality of magnets on the key which are cooperative with a plurality of magnets mobile in the cylinder, said plurality of magnets on the key being gripped in sheaths of ferromagnetic material, said plurality of magnets on the cylinder being gripped in sheaths of ferromagnetic material, said plurality of magnets of the cylinders slidable in an area of the interface in holes formed therein, said plurality of magnets of the cylinder being slidable in said holes so as to lock the rotor against rotations relative to the stator, said plurality of magnets of the cylinder being magnetically identical and of an identical geometrical distribution as said plurality of magnets of the key, each of said sheaths of ferromagnetic material of the cylinder and of the key having an magnetic sleeve means extending therearound and a yoke means of ferromagnetic material receiving said magnetic sleeve therein, said magnetic sleeve means and said yoke means for concentrating a magnetic flux of said plurality of magnets in a given direction.