High security lock mechanism

A combination-type locking system, secure against illegal unlocking by externally applied shock and electrical or magnetic fields and operable solely by a manual power input associated with provision of a predetermined combination code, for securely bolting and unbolting a door to an enclosure body by controlled manual movement of a bolt element respectively into and out of a recess, comprising:

• manually operated combination-inputting means for inputting said combination code by a predetermined sequence of physical movements;
• electrical power generating means, driven by said manually operated combination-inputting means, for generating an electrical current solely due to said sequence of physical movements;
• electrical power storage means, connected to said electrical power generating means, for storing a predetermined quantity of electrical charge received therefrom;
• microprocessor means, connected to said electrical power generating means and responsive to said variations of electrical current generated thereby, for receiving said electrical current and sensing when said predetermined combination code is correctly input and, only thereafter, releasing said stored electrical charge as a controlled current;
• electrical-mechanical transducer means for receiving said controlled current and for thereby generating a corresponding mechanical movement of a first engagement means from a disengaged position thereof to an engaged position wherein said first engagement means becomes forcibly engaged to said combination-inputting means to be driven solely by further manual operation thereof;
• and
• bolt drawing means, connected to said bolt element, for engaging with said first engagement means in said engaged position thereof for thereby engaging with said combination-inputting means and drawing said bolt element out of said recess solely in response to further manual operation of said combination inputting means in a first direction,
• wherein said bolt drawing means is movable by a movement of said combination-inputting means in a second direction to lock said door to said enclosure body, said first engagement means thereupon being returned to said disengage position thereof, whereby subsequent unbolting is effected solely by an entirely new manual operation of said combination-inputting means to input said selected combination code correctly and in its entirety.

A combination-type manual locking mechanism, comprising:

• means for manually inputting a combination code by a predetermined sequence of physical movements;
• means, driven by said combination inputting means, for generating an electrical current solely due to said sequence of physical movements;
• means for storing electrical charge received from the current generating means;
• microprocessor means, responsive to said electrical current, for sensing when said predetermined combination code is correctly input and thereafter releasing said stored electrical charge as a controlled current;
• transducer means for receiving said controlled current and generating a corresponding movement of a first engagement means from a disengaged position to an engaged position thereof wherein the first engagement means is positioned to be forcibly driven solely by further manual operation of the combination-inputting means;
• and
• means engaged with said first engagement means for engaging with the combination-inputting means and drawing said bolt to a recessed position solely by further manual operation of said combination inputting means in a first direction,
• wherein said bolt drawing means is movable by the combination inputting means to move the bolt to a projecting position with the first engagement means thereupon being returned to a disengaged position thereof, any subsequent bolt movement requiring a repeated operation of the combination-inputting means to input said combination code in its entirety.