Abstract: A self-powered electric lock includes a lock bolt and a first engagement element having disengaged and engageable positions. An electric actuator includes an output operative to move the first engagement element to its engageable position. A manually operated rotatable member is operatively coupled to the first engagement element when the first engagement element is in its engageable position. A lock bolt drive mechanism is coupled to the lock bolt and to the first engagement element when the first engagement element is in its engageable position. The movable output moves the first engagement element to its engageable position upon input of correct electronic data. An electricity generator is coupled to the manually operated rotatable member. The electricity powers the electric actuator and an electronic data input device. The manually operated rotatable member is also used to actuate the lock bolt drive mechanism and retract the lock bolt.

Abstract: A self-powered electronic combination lock including a lock mechanism having locked and unlocked conditions. A rotatable dial is used to input a numerical combination code for changing the lock mechanism from the locked condition to the unlocked condition. An electronic display operates to display individual numbers of the combination code as the dial is rotated and a control is electrically connected with the dial and the electronic display. The control changes the numbers shown in the display as the dial is rotated in a single direction and the control is operable to sense a change in the direction of dial rotation. An electricity generating device is connected with the dial and the control and operates through dial rotation to generate electricity to power the control.

Abstract: A self-powered electric lock includes a lock bolt and a first engagement element having disengaged and engageable positions. An electric actuator includes an output operative to move the first engagement element to its engageable position. A manually operated rotatable member is operatively coupled to the first engagement element when the first engagement element is in its engageable position. A lock bolt drive mechanism is coupled to the lock bolt and to the first engagement element when the first engagement element is in its engageable position. The movable output moves the first engagement element to its engageable position upon input of correct electronic data. An electricity generator is coupled to the manually operated rotatable member. The electricity powers the electric actuator and an electronic data input device. The manually operated rotatable member is also used to actuate the lock bolt drive mechanism and retract the lock bolt.

Abstract: A dead bolt lock system which may use one or more security locks in conjunction with a dead bolt to provide various levels of security access to a door. Generally, the lock system tests the condition of the security lock or locks before allowing retraction of the dead bolt. An inside escape lever is provided as a life safety feature to allow egress from the secured area regardless of the conditions of the security locks. A trigger hold back device maintains the dead bolt in a retracted position until the door has been opened and closed again. Lock covers include associated locked-on-by-combination and relock features. A night latch or lock down feature is provided to prevent access, including authorized access through the outside of the lock system. A force blocking assembly is provided to prevent force applied to the dead bolt from harming internal components of the system. A torque override clutch prevents excessive torque applied to the outside door handle from harming internal lock system components.

Abstract: A self-powered electric lock includes a lock bolt and a first engagement element having disengaged and engageable positions. An electric actuator includes an output operative to move the first engagement element to its engageable position. A manually operated rotatable member is operatively coupled to the first engagement element when the first engagement element is in its engageable position. A lock bolt drive mechanism is coupled to the lock bolt and to the first engagement element when the first engagement element is in its engageable position. The movable output moves the first engagement element to its engageable position upon input of correct electronic data. An electricity generator is coupled to the manually operated rotatable member. The electricity powers the electric actuator and an electronic data input device. The manually operated rotatable member is also used to actuate the lock bolt drive mechanism and retract the lock bolt.

Abstract: A self-powered electric lock includes a lock bolt and a first engagement element having disengaged and engageable positions. An electric actuator includes an output operative to move the first engagement element to its engageable position. A manually operated rotatable member is operatively coupled to the first engagement element when the first engagement element is in its engageable position. A lock bolt drive mechanism is coupled to the lock bolt and to the first engagement element when the first engagement element is in its engageable position. The movable output moves the first engagement element to its engageable position upon input of correct electronic data. An electricity generator is coupled to the manually operated rotatable member. The electricity powers the electric actuator and an electronic data input device. The manually operated rotatable member is also used to actuate the lock bolt drive mechanism and retract the lock bolt.

Abstract: An electronic combination lock including an electronic combination input device, a lock-bolt mounted for movement between locked and unlocked positions and a rotatable first engagement element having disengaged and engageable positions. A first electric actuator is electrically coupled with the electronic combination input device and includes a rotatable output for rotating the first engagement element to its engageable position in response to a proper combination input. A manually operated and rotatable second engagement element may be engaged with the first engagement element in the engageable position thereof. A lock-bolt drive mechanism is operatively coupled between the lock-bolt and the first engagement element. A second electric actuator includes a movable output operatively coupled to the first engagement element to prevent the first engagement element from rotating until the proper combination is input.

Abstract: A self-powered electronic combination lock including a lock mechanism having locked and unlocked conditions. A rotatable dial is used to input a numerical combination code for changing the lock mechanism from the locked condition to the unlocked condition. An electronic display operates to display individual numbers of the combination code as the dial is rotated and a control is electrically connected with the dial and the electronic display. The control changes the numbers shown in the display as the dial is rotated in a single direction and the control is operable to sense a change in the direction of dial rotation. An electricity generating device is connected with the dial and the control and operates through dial rotation to generate electricity to power the control.

Abstract: A self-powered electronic combination lock including a lock mechanism having locked and unlocked conditions. A rotatable dial is used to input a numerical combination code for changing the lock mechanism from the locked condition to the unlocked condition. An electronic display operates to display individual numbers of the combination code as the dial is rotated and a control is electrically connected with the dial and the electronic display. The control changes the numbers shown in the display as the dial is rotated in a single direction and the control is operable to sense a change in the direction of dial rotation. An electricity generating device is connected with the dial and the control and operates through dial rotation to generate electricity to power the control.

Abstract: A locking mechanism for a safe container of valuable or dangerous items has an engagement element movable from a disengaged position to an engageable position thereof solely upon receipt of a controlled small predetermined amount of electrical power. When the engagement element is thus put in its engageable position, a manually operated element engages therewith and, under the influence of a further manual force input by a user, manually moves the engagement element to forcibly drive a lock-bolt from a locking position to an unlocking position thereof. In one aspect of the invention, the engagement element is connected to the rotor of a low power, low-friction electric motor having at least two magnetic detents, respectively corresponding to the disengaged and engageable positions.

Abstract: A locking mechanism adapted to be placed in locked and unlocked positions. The locking mechanism includes a lock-bolt mounted for movement between locked and unlocked positions and a first engagement element having disengaged and engageable positions. An electric actuator having a movable output drives the first engagement element to the engageable position. A manually operated second engagement element can be engaged with the first engagement element in its engageable position. A lock-bolt drive mechanism is operatively coupled between the lock-bolt and the first engagement element. A slidable element responds to a movement of the manually operated second engagement element and slides linearly between engaged and disengaged positions. The slidable element cooperates with the lock-bolt drive mechanism to enable manual movement of the lock-bolt between the locked and unlocked positions thereof such that the disengaged position of the slidable element corresponds to the locked position of the lock-bolt.

Abstract: An electronic combination lock includes a combination lock having a dial with no markings thereon. Rotation of the dial drives a generator which produces electrical pulses. The voltage pulses serves as a power source for the electronics of the lock. The lock also includes a security feature to disable the lock if the combination dial is stopped between dial rotations for a period of time which indicates dialing by an automatic dialer.

Abstract: An electronic combination lock includes a combination lock having a dial with no markings thereon. Rotation of the dial drives a generator which produces electrical pulses. The voltage pulses serves as a power source for the electronics of the lock. The lock also includes a security feature to disable the lock if the combination dial is stopped between dial rotations for a period of time which indicates dialing by an automatic dialer.

Abstract: A dead bolt lock cover for a dead bolt lock assembly comprises a cover and a lock assembly. The cover is sized to enclose the lock casing of the dead bolt lock assembly to prevent unauthorized tampering therewith. The lock assembly fixes the cover to the dead bolt lock base or a separate base member. With the lock assembly, only an authorized person can gain access to the lock casing of the dead bolt lock.

Abstract: A safe locking mechanism has an engagement element movable from a disengaged position to an engageable position in response to a small amount of electrical power. When in its engageable position a mechanical linkage assembly is driven by the engagement element to unlock a lock-bolt. The mechanical linkage assembly includes a low inertia pivoting cam which interacts with a lock lever of the locking mechanism to move it to an unlocking state. Electrical power is generated solely while the user manually inputs a combination code, and a microprocessor controls storage and delivery of this power to put the engagement element into its engageable position. Once the desired engagement is obtained, the lock-bolt is moved from its locking to its unlocking position manually. Subsequent unlocking requires another entry of the code input.

Abstract: An electronic combination lock includes a combination lock having a dial with no markings thereon. Rotation of the dial drives a generator which produces electrical pulses. The voltage pulses serves as a power source for the electronics of the lock. The lock also includes a security feature to disable the lock if the combination dial is stopped between dial rotations for a period of time which indicates dialing by an automatic dialer.

Abstract: A safe locking mechanism has an engagement element movable from a disengaged position to an engageable position in response to a small amount of electrical power. When in its engageable position a mechanical linkage assembly is driven by the engagement element to unlock a lock-bolt. The mechanical linkage assembly includes a low inertia pivoting cam which interacts with a lock lever of the locking mechanism to move it to an unlocking state. Electrical power is generated solely while the user manually inputs a combination code, and a microprocessor controls storage and delivery of this power to put the engagement element into its engageable position. Once the desired engagement is obtained, the lock-bolt is moved from its locking to its unlocking position manually. Subsequent unlocking requires another entry of the code input.

Abstract: A safe locking mechanism has an engagement element movable from a disengaged position to an engageable position in response to a small amount of electrical power. When in its engageable position a mechanical linkage assembly is driven by the engagement element to unlock a lock-bolt. The mechanical linkage assembly includes a low inertia pivoting cam which interacts with a lock lever of the locking mechanism to move it to an unlocking state. Electrical power is generated solely while the user manually inputs a combination code, and a microprocessor controls storage and delivery of this power to put the engagement element into its engageable position. Once the desired engagement is obtained, the lock-bolt is moved from its locking to its unlocking position manually. Subsequent unlocking requires another entry of the code input.

Abstract: A tamper indication system for use with combination locks can indicate or signal that unauthorized manipulation of one or more of the lock components has occurred. In one mode, the tamper indication system senses unauthorized retraction of the lock bolt. Unauthorized movement of the lock cover or combination dial can also be sensed. Sensing can be achieved by generating a mechanical action responsive to the unauthorized manipulation and converting the mechanical action into an electrical signal for sensing and indicating. The mechanical action can utilize a snap action motion generation system, non-contact means such as magnets or a spring biased switch.

Abstract: A safe locking mechanism has an engagement element movable from a disengaged position to an engageable position in response to a small amount of electrical power. When in its engageable position a mechanical linkage assembly is driven by the engagement element to unlock a lock-bolt. The mechanical linkage assembly includes a low inertia pivoting cam which interacts with a lock lever of the locking mechanism to move it to an unlocking state. Electrical power is generated solely while the user manually inputs a combination code, and a microprocessor controls storage and delivery of this power to put the engagement element into its engageable position. Once the desired engagement is obtained, the lock-bolt is moved from its locking to its unlocking position manually. Subsequent unlocking requires another entry of the code input.