Door locking system

An automatic door locking system that provides for unlocking of the door to a room from a remote location, the system comprising:

• a door lock comprising:
• a door locking bolt movably mounted in the door;
• a door lock striker mounted in the frame of the door positioned to receive said locking bolt when said door is in the closed position, said door lock striker in a first condition when the door is locked and in a second condition when said door is unlocked;
• a first lever mounted on the room side of door manually operable to move said locking bolt out of engagement with said door lock striker when said door lock striker is in said first position;
• and
• a second lever mounted on the opposite side of the door, said second lever inoperable to disengage said door locking bolt from said door lock striker when said door lock striker is in said first position and disengages said locking bort from said door lock striker when the door is in the closed position and said door lock striker is in said second condition;
• an electrical circuit means to unlock said door lock from the remote location by placing said door lock striker in said second condition such that the door can be opened by said second lever and, when the door is opened, automatically resets the door lock to the locked condition;
• and
• power supply means coupled to said electrical circuit means.