Magnetic tumbler lock

A magnetic actuated lock mechanism comprising an external housing, an inner cylinder which is adapted to turn in said external housing, said inner cylinder having a keyhole for receiving a key axially therein, there being arranged two rows of tumbler magnets in said inner cylinder, said tumbler magnets being adapted to turn about a rotary axis transverse of the longitudinal axis of the inner cylinder;

• said tumbler magnets being magnetized through a process of partial magnetization producing both a north and south magnetic poles on the end adjacent to said keyhole;
• a magnetic key provided with a key magnet corresponding to each of said tumbler magnets for co-operating with each of said tumbler magnets, said key magnets being magnetized through a process of partial magnitization producing both a north and south magnetic poles on the end adjacent to said tumbler magnets, said tumbler magnets and said key magnets being substantially coaxially oriented in pairs so that the magnetic flux passes through the interior of the key magnets and through the interiors of the rotatable tumbler magnets along a curved line and beyond the key magnets whereby each tumbler magnet is rotatably operable by a single key magnet and said tumbler magnets are each rotated into an unlocked position upon insertion of said key;
• and a bolt rod extending in the direction of length of the inner cylinder, adjacent said two rows of tumbler magnets, said mechanism constructed and arranged such that, in said locked position of said tumbler magnet, the bolt rod is locked outwardly abutting the top surface of said tumbler magnets and within an interior slot in the external housing preventing relative angular displacement between said inner cylinder and said external housing and in said unlocked position of said tumbler magnets, the bolt rod is movable inwardly toward the longitudinal axis of the inner cylinder into a slot formed by aligned recesses in said tumbler magnets when said tumbler magnets are rotated into the unlocked position by insertion of a proper magnetic key, whereby said inner cylinder is rotatable with respect to said external housing.