Abstract: An electronic lock controlled safe for hotel rooms and the like including a box-like safe having a safe door and door frame, an electronic lock mounted on the door including a forwardly exposed keypad and display window assembly, the keypad having plural finger-actuated keys with associated numerals and legends and an associated electrically activated alpha-numeric display strip located adjacent the keypad for displaying messages through the display window to an operator.

Abstract: A combination lock to be fitted in a door having standard size lock and bolt bores therein. A series of code pins extend through the lock bore and are movable between set and reset positions from both sides of the door to permit rotation of an exterior knob spindle to release the lock. An interior knob may be rotated to release the lock even though locked from the exterior. An adjustment feature selectively adjusts the lock to act as either a single lock or a double lock.

Abstract: A combination locking assembly comprising a mechanism wherein the actuation push buttons are jammed and prevented from being depressed when a single one of the push buttons is already depressed. The combination locking assembly further having combination resetting means including a panel which pivots in a first direction and clears the combination and also assists in setting the new combination by pivoting in a second direction.

Abstract: A keyless button lock is described in which a plurality of lock buttons are provided, each button requiring a particular number of presses to attain an open or lock release position. A lock element is also provided which, when actuated, returns all buttons to a locked position. The buttons have more than one release or open position so that master and grand master keying can be provided. The lock may be coupled to a door lock mechanism in a single unit to minimize space and complexity. Embodiments of the invention are described.

Abstract: The knob spindle of a door lock is locked by a locking element supported for movement about an axis parallel to the spindle axis, and a latch, also supported for movement about an axis parallel to the spindle axis, latches the locking element in both locking and unlocking positions. Spring means urge the latch into latching position. Electromagnets are energized sequentially to move the latch into unlatching position and the locking element into unlocking position.

Abstract: This invention relates to a so-called "keyless" type button operated combination lock which can be unlocked by a button operation and locked by a handle operation. A number of buttons exposed on the front side of a case can be set in a combination and a key plate that engages with a bolt lock and keeps it in the locked state is unlocked by setting the buttons, and actuator keys to which they are attached, to a combination but prevents unlocking if the unlocking operation is erroneously carried out. These keys are made in the same shape and size, and the set positions for the memory state and the non-memory state can be interchanged by reversing key positions. These keys are loosely inserted into corresponding slits in the key plate and permit the selection of various operating conditions in conjunction with the key plate slits. When the keys are brought into the "ON" state, they are detachably hooked to the lock plate.

Abstract: There is described a case for valuable documents, such as notably checks, credit cards, bank notes, etc., comprised of a box with a lid and a closure which may only be opened by inputting a code number, as well as a capsule or phial filled with a pressurized liquid which can destroy or make useless said documents, in which said capsule or phial is made completely or partly from fusible material, and said capsule or phial may be opened or unplugged electrically when electric or electronic means the case is fitted with, are operated due to any break-in attempt.

Abstract: An electromechanical lock with coded keyboard programmable by several users. The lock is unlocked electrically by an eccentric, actuated by an electric motor, which acts on a trigger to unlock the device. The eccentric is a disk mounted eccentrically on a shaft of the electric motor. The rotation of the shaft causes the disk to turn, which, under the action of centrifugal force, strikes the trigger so as to free the bolt. A disk of plastic material is fixed concentrically with the axis of the motor, and a second disk of suitable mass is mounted on the first disk in an eccentric manner with respect to the shaft.

Abstract: A permutation lock having pushbutton code controls and automatic cancelling of the code when the latch is operated for opening the door. An adjustable time-delay device is provided for disabling the operation of the lock after a predetermined time from when the code is inserted in the lock chamber. The time delay device disables the lock after the duration of a predetermined time.

Abstract: A combination lock system on a narrow stile door having selective operation through a drive mechanism including a slide for retraction of the latch bolt operated by the combination lock and a manual control or key operation of the latch bolt. The key operation provides an override of the combination lock operation.

Abstract: A resettable combination lock includes a plurality of user depressable buttons and a user-settable interposers for coupling selected ones of the buttons to a first button-actuation counter that counts correct button depressions and the other of the buttons to another button-actuation counter that counts incorrect button depressions. In addition, each button is coupled to a third counter that counts the total number of button actuations. In order to effect unlocking, the correct button sequence must be pushed to cause the first counter to count the proper number of correct button actuations and the third counter to count the proper number of button actuations without registering a single count on the second counter. The incrementing of a single count on the second counter, which indicates the depressing of a button not in the unlock sequence, will prevent the lock from being unlocked.

Abstract: A safety dead-bolt lock adapted to be mounted on a door. The safety dead-bolt lock has a bolt and a rotatable bolt activator. A safety knob is adapted to rotate the bolt activator and thus extend and withdraw the bolt. The safety knob has a rotatable member engaged with the bolt activator and a stationary member adapted to be fixed to the door. A disengageable interlocking mechanism is adapted to prevent rotation of the rotatable member relative to the stationary member. Depressable tabs mounted in the rotatable member disengage the interlocking mechanism when depressed, allowing the rotatable member to be turned to withdraw and extend the bolt. The tabs are in such an arrangement and are so oriented that they are conveniently presented toward the hand of a user located on the side of the door on which the stationary member is mounted, but the hand of a person reaching from the other side of the door cannot readily assume the position necessary to depress the tabs.

Abstract: Mechanical digital lock operable through a series of mechanical operations actuated by the depression of digital keys comprises an intellectual combination of essential mechanisms including a plurality of keys, digital selectors, identifiers, locking means and automatic resets. The lock cannot be opened unless the predetermined digitals are sequentially depressed. Once the lock is opened, it is automatically reset. A change of combination of digitals can easily be manually effected without any tool. With its novel structure, it is highly reliable.

Abstract: A push-button combination lock for doors or the like having buttons which must be pushed in a prescribed combination and prescribed number of times to release the lock. The lock may be reset to a new combination by use of the same pushbuttons when operated in accordance with the newly desired combination. No tools or dismantling of the lock is required to change the combination. A bypass feature enables one to bypass the lock from the inside of the door.

Abstract: An emergency exit lock of vertical rod type has an active case which contains a latch bolt retracting mechanism operable at all times by a panic-bar. A key-controlled cassette mechanism releasably retained in the active case cooperates with the latch bolt retracting mechanism to provide an additional lock operating function. The cassette mechanism may be assembled to provide a latch holdback function, to lock or disable and unlock or enable a manually operated outside operating member, or to unlock or enable an outside operating member normally maintained in locked or disabled condition when the key is removed.