Dual electronic lock for human passage door

An electronic door lock having a first code entry door bolt mechanism and a second code entry door bolt mechanism and an associated circuit board means for receiving a first coded sequence and producing a first code responsive electrical signal and for receiving a second coded sequence and producing a second code responsive signal, said first code entry door bolt mechanism comprising:

• a first door bolt and means for mounting said first door bolt for movement between protracted and retracted positions relative said door;
• a manually rotatable and axially moveable knob means for manually entering said first coded sequence by rotative and axial movement thereof and for thereafter shifting said first door bolt between retracted and protracted positions by rotation through a given arc of rotation;
• limit means for normally limiting said knob means from rotating through said given arc of rotation and thereby normally restricting operation of said first door bolt;
• first electrically operated means associated with said circuit board means for deactivating said limit means on receipt of said first code responsive electrical signal to thereby release said knob means for manipulation of said first door bolt to retracted position;
• said second code entry door bolt mechanism comprising:
• a second door bolt and means for mounting said second door bolt for movement between protracted and retracted positions relative said door, and a biasing spring associated with said second door bolt for maintaining protracting pressure on said second door bolt;
• a door handle and an associated lever control means for retracting said second door bolt in response to manipulation of said door handle;
• locking means for normally restricting movement of said lever control means;
• second electrically operated means associated with said circuit board for releasing the said locking means in response to said second code responsive electrical signal from said circuit board to thereby release said lever control means and associated door handle for manipulation thereof to retract said second door bolt.