Blocking Device and System for Mechanical Lock

A control device, particularly for use in a mechanical or magnetic cylinder lock, comprising,

• a. a housing defining a cylindrical passage;
• b. a cylindrical plug that fits into said passage for rotational movement relative to said housing;
• c. a keyhole through the front end of said plug;
• d. a means between said plug and said housing for blocking the rotational movement in one axial position of said plug and for unblocking the rotational movement in another axial position thereof;
• e. said plug having at least one longitudinal groove and a multiple of rotary members each supported for rotation about an axis transverse to said longitudinal groove;
• and
• f. blocking bars extending in longitudinal direction between said plug and said sleeve and to stop said rotary members movement immediately when cylindrical plug is rotated in said housing.
• A blocking system to stop movement of mechanical or magnetic coded rotors, pins or discs comprising,
• a. rotary members mechanically or magnetically coded;
• b. at least one bar that will arrest rotational movement when in one axial position and allow it in another axial position;
• c. a key matching said mechanical or magnetic coding;
• and
• d. at least one blocking bar that will arrest rotor, pin or disc movement.