Abstract: A door key is held in a tray which is slidably installed in a container. The tray is retained in the container by a form member pivotally mounted on the container which engages a latch on the tray. A shackle is removably attached to the container for use in retaining the container to a door knob or the like. The shackle has a notched arm which engages a fork member pivotally mounted on the container, thereby retaining the shackle in a closed position. A motor which rotatably drives a drive gear is mounted in the container. When the motor is driven in a first direction, the drive gear drives a tapered release wheel which operates to release the fork member from engagement with the key tray latch, thereby permitting the key tray to be removed. When the motor is driven in an opposite direction, the drive gear drives a second tapered release wheel so as to disengage the notched arm of the shackle from its associated fork member, thereby permitting the shackle to be moved to an open position.

Abstract: A keysafe has tumblers which are set by a key-like programmer and has combination wheels which, when correctly set, have slots which receive the set tumblers. Thus, there is a unique combination for each programmer. In order to reset the combination wheels to their beginning, reference position, a slot is provided in each combination wheel, together with a lock bar which can enter the slot when the combination wheels are in the reference position. This lock bar is actuated to permit the programmer to be withdrawn.

Abstract: The electronic lock system is useful for a key safe where many different persons must have controlled, recorded access. Each user has a card key which is connected to one of a plurality of key safes to complete the system. The user inserts his personal identification number (PIN) into the card key in order to activate the card key. The card key is laid against a key safe so that an exchange of data takes place between key safe and card key to perform the security, access and control functions. The card key and key safe interact to exchange information so that the key safe may have memory of which card key is being used at which time, and vice versa. Updating of other memory functions can be accomplished. Validity is verified if a board number and a security level number in the card key relate correctly to their counterparts in the key safe and if the card identification (CID) number is not in the lock invalid CID number list. When valid, the key safe can be opened.

Abstract: The electronic lock system is useful for a key safe where many different persons must have controlled, recorded access. Each user has a card key which is connected to one of a plurality of key safes to complete the system. The user inserts his personal identification number (PIN) into the card key in order to activate the card key. The card key is laid against a key safe so that an exchange of data takes place between key safe and card key to perform the security, access and control functions. The card key and key safe interact to exchange information so that the key safe may have memory of which card key is being used at which time, and vice versa. Updating of other memory functions can be accomplished. Validity is verified if a board number and a security level number in the card key relate correctly to their counterparts in the key safe and if the card identification (CID) number is not in the lock invalid CID number list. When valid, the key safe can be opened.