Abstract: An exit device for a door includes an elongate housing, a latch, a touch bar assembly, a panel, and a dogging assembly. The elongate housing is configured to be mounted to the door. The touch bar assembly is attached to the elongate housing. The touch bar assembly includes a touch bar that is movable relative to the elongate housing and has a linkage that operably connects the touch bar to the latch. The panel is connected to the elongate housing. The dogging assembly has a combination lock dogging operator and a dogging mechanism. The dogging mechanism is rotatably coupled to the elongate housing. The combination lock dogging operator is mounted to the panel, and is drivably engaged with the dogging mechanism.

Abstract: A pin lock device for securing an article, including a lock base and a removable lock device that locks to the lock base. A plurality of control pins disposed in pin bores that communicate with a mounting post through tumbler channels. Alignment of recesses in the control pins releases the locking device from the post. The locking device allows the user to secure an article, such as a handgun, on the post in a secure and accessible manner.

Abstract: A code changing mechanism for a mechanical combination lock, comprises function keys; two rows of code number keys on the lock body; a code-changing rack; an intermediate gear; a code-changing lock core with keyhole; and gear modules connected with each code number key, each gear module comprises a code-changing gear and controlling chip. There is a groove for resetting code provided on the gear; the chip inserted in the groove forming a code reset site; a code free site provided between the chip and gear; a left and a right straight rack; and the rack engages with a corresponding row of code-changing gears. The lock core coaxially connects with the intermediate gear, the intermediate gear engages with two opposing code-changing gears thereof. A movable sheet is under each of the keys. The code is changeable without disassembling any component, making the mechanism convenient, swift, flexible, reliable, with robust anti-crack capability.

Abstract: A lock operated by a corresponding key. The lock has a housing, and a keyway is formed in the housing along a keyway axis for receiving the corresponding key therein. A latch is moveable with respect to the housing between a first position, wherein the lock is secured, and a second position, wherein the lock is not secured. A permutation surface is formed on the latch, and a plurality of intermediaries are disposed within the housing. Each intermediary has a first portion engageable with the permutation surface of the latch and a second portion engageable with the corresponding key, wherein insertion of the corresponding key into the keyway selectively engages the intermediaries with the permutation surface in a predetermined sequence, thereby moving the latch from the first position to the second position.

Abstract: A method for operating a locking device, wherein the locking device disposed in a first main body includes a first locking element. In an embodiment, when the first locking element is forced to separated from a second locking element disposed on a second main body, a pushing element connecting the second main body through an elastic element receives an elastic force by the elastic element to push the second locking element, so that the second main body moves with respect to the first main body. In another embodiment, when a first force is applied onto the first locking element so that the first locking element exits the locking position of the first locking element and the second locking element, a damping restoration element pivoted between the first locking element and the first main body drives the first locking element to be resumed to the locking position after a time interval.

Abstract: A padlock includes a shackle attached to a lock housing, a lever pivotally disposed in the lock housing and having one end for anchoring legs of the shackle to the lock housing, a carrier slidably received in the lock housing and having an actuating member to selectively disengage the lever from the legs of the shackle and having a number of protrusions. A follower is slidably attached onto the lock housing, and includes an anchoring device to anchor the carrier to the lock housing at selected positions. An operating device includes a number of selected bars slidably attached onto the lock housing, to actuate the protrusions of the carrier, and to move the carrier relative to the lock housing step by step.

Abstract: A combination lock includes a core unit, a locking mechanism, and a reset mechanism formed of a guide rod, a sliding plate, a stop rod and a reset member. The sliding plate is downwards to push the locking mechanism to the unlocking position wherein operation buttons pressed subject to the set code. When the locking mechanism lifted to push the reset member of the reset mechanism, the locating rod of the reset member pushes the stop rod away from the rack of the sliding plate, enabling the sliding plate to be returned by a spring member so that the core unit is returned to the initial position for resetting the code.

Abstract: A combination lock is provided, each of buttons of which has to be pressed respective correct numbers of times (including zero time) for unlocking the lock, therefore there is wider variety of different unlocking combinations with limited numbers of buttons, preventing unauthorized persons from easily guessing the current unlocking combination. The combination lock is made such that a knob connected thereto will be, when operated, only capable of turning in an idle manner without causing a dead bolt to disengage a door equipped with the lock unless all numbered buttons of the lock are correctly pressed according to the current unlocking combination, preventing unauthorized persons from succeeding in unlocking the door by means of turning the knob violently.

Abstract: A combination lock system comprising a set of push-buttons, a set of series of coders each of which series is associated with a push-button, incrementing means for placing the coders of each series successively in a position to be operated by a push-button, coding means for selecting some coders and placing them in a coding position, and means for returning the coders to a waiting configuration after the push-buttons are actuated. The system comprises means for authorizing two actuation strokes of the push-buttons, namely a normal stroke commanding movement of a coder which is part of the code between its coding position and an unlocking position and a coding travel moving a coder from its inactive position to its coding position. For entering a new coded combination, the system further comprises means for placing all the coders in the inactive position and authorizing actuation of the push-buttons over the coding stroke.

Abstract: A new class of mechanical code comparators is described which have broad potential for application in safety, surety, and security applications. These devices can be implemented as micro-scale electromechanical systems that isolate a secure or otherwise controlled device until an access code is entered. This access code is converted into a series of mechanical inputs to the mechanical code comparator, which compares the access code to a pre-input combination, entered previously into the mechanical code comparator by an operator at the system security control point. These devices provide extremely high levels of robust security. Being totally mechanical in operation, an access control system properly based on such devices cannot be circumvented by software attack alone.

Abstract: A combination lock having a housing, a shackle, a dial, a pushbutton, and a lock assembly. The lock assembly is made of a group of rotating disks having windows that can be aligned to open the lock. When the dial is turned according to the combination of the lock, the windows become aligned so that the user can depress the pushbutton to release the shackle. The pushbutton travels in a direction that is perpendicular to the axis of rotation of the dial. When the shackle is locked again, the pushbutton returns to its original position. As the pushbutton travels back to its original position, portions of the lock assembly are turned so that the combination must be reentered in order to reopen the lock.

Abstract: A gun lock assembly includes an engagement portion with a locked position in which a portion of the firing mechanism is operatively engaged to prevent firing of the firearm, and an unlocked position in which operation of the firearm is permitted. The lock preferably includes a lock housing with structure for attaching the lock housing to the firearm. An adapter can be utilized to facilitate attachment of the lock to a variety of different guns. A preferred combination lock is disclosed with structure for altering the combination. An embodiment that is suitable for long arms is also disclosed.

Abstract: A combination locking assembly of simplified and robust construction. The combination assembly incorporating easily positionable slide members for setting the combination. The combination assembly also including incremental movement retaining apparatus wherein the locking bar is moved to the unlocked position only when the correct digits are sequentially depressed in the correct order. The combination assembly also allowing multiple use of the same combination digits.

Abstract: Apparatus for determining the opening combination of a safe lock includes a servo motor, a molded dial gripper that fits over the hub of the combination lock dial, and a high resolution rotary, encoder, preferably one with a resolution of 1000 PPR. The rotary encoder has a resolution of 0.09 degrees of rotation using quadrature, which permits the dial to be rotated accurately to within 1/10 of a digit. A programmable logic and control circuit can rotate the dial for automatic implementation of a manipulation technique. This permits the safe combination to be found in a rather short period of time, typically less than one hour.

Abstract: A sequence dependent push-button lock mechanism having compression loaded locking rod assemblies, arcuate segments of which are placed in compression if attempts are made to force the lock open, and unlocking by rotating the arcuate segments out of compression engagement with a sliding block associated with a thumb-actuated reciprocating shackle sleeve, particularly adapted for use in padlocks and deadbolt/cabinet locks. The locks are applicable to use in combination with pivot-only shackles in the padlock form, and thumb-actuated shackle or deadbolt release mechanisms. The thumb latch is of a break-away type to deter plurality of holes in a spaced array for receiving spring biased automatic return push-button assemblies which actuate locking rods that are disposed to rotate upon selective engagement with various combinations of special "T" and "C" shaped flanges on button actuator members.

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 mechanism for a keyless lock has a generally prismatic body with a longitudinal hole and orthogonal transverse holes therethrough. A longitudinal cylinder axially movably in the longitudinal hole carries a lock-operating element and has concavely-rounded annular cuts respectively receiving retaining cylinders axially movably in the transverse holes for preventing lock-operating axial movement of the longitudinal cylinder until concavely-rounded annular cuts on the retaining cylinders are aligned with the longitudinal cylinder by axial movement of the retaining cylinders. Independent advancing mechanism on the body for the respective retaining cylinders have pulsators which are pushed to so move the retaining cylinders incrementally.

Abstract: A digital system lock can be unlocked by only pushing several push-buttons in the specified order. This digital system lock is unlocked by the cooperation of mechanical elements, without utilizing a microcomputer device, and does not require a key. If the push-buttons are pushed in an order which does not correspond to the specific order, mechanical elements also prevent the lock from being opened until a return button is pushed and the push-buttons are pushed in the specified order.

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: This is a security device to be attached to an inside security grill. It would protect the unauthorized entry of individuals and provide emergency departure from a secured area. It is a sequentially operated keyless lock primarily for use as an escape device but has application on automobiles, medicine cabinets, closets and childproof areas as it makes access difficult. It is sequential in that opening the lock requires the use of both hands and three physical movements. Step One must be done and remain stationary before Step Two can be accomplished. While Step One still remains stationary and after Step Two is completed, only then can Step Three be completed, opening the lock. If the sequence is interrupted before completion, the lock cannot be opened.

Abstract: A mechanical lock device dispensing with a key capable of unlocking a dead bolt from outside the room when pushbuttons of a number r out of a total number of n are depressed and a locking and unlocking bar of a lock unit and a locking and unlocking member connected thereto are rendered rotatable. The locking and unlocking member is fitted in a control slider. In the control slider, there is disposed a control pin which controls the transmission of the sliding movement of an intermediate slider to the dead bolt. The intermediate slider can be operated by turning a grip. The control pin is controlled by a sub-control slider. In the lock unit, there are disposed two sliding plates which can be carried in accordance with the movement of a permutation driving plate.

Abstract: A mechanism comprising a code wheel assembly including a first element, a second element and a third element, a element, a plurality of main code posts preset for locking the first element and the second element in driving relation, selectively operable means for actuating the main code posts sequentially in a predetermined sense for unlocking the second and first elements, an auxiliary code post operable for locking the first element to the third element following the actuation of the main code posts sequentially in said predetermined sense to unlock the first and second elements, control means selectively actuated by the third element for performing a control function, and said control means being selectively actuated by said third element following the locking of the first element to the third element by the auxiliary code post and after the first element has been unlocked from the second element.

Abstract: A decoder mechanism comprising a code wheel assembly including an inner wheel element and an outer wheel element, means for locking the inner wheel element to the outer wheel element in driving relation, means selectively operable for actuating said locking means in locking and unlocking senses, other means selectively operable for changing the locking and unlocking senses of said locking means, and said other means including means effective to transfer from said one unlocking sense to said other unlocking sense upon actuation of said locking means in said one unlocking sense.

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: Electrovalves are opened in automobile piping of a brake line, a clutch line and a fuel line by a current through normally open contacts of a plurality of control relays and through normally closed contacts of an interlocking relay. The control relays are operated by selected switches of a plurality of push-button switches while the interlocking relay is operated by the non-selected switches of the plurality of switches. The control relays are interconnected so that the selected push-button switches must be operated in a selected sequence. All the relays have holding circuits.

Abstract: A combination push-button lock wherein a bolt is shiftably mounted in a body for movement between locked and unlocked positions, a rotor being mounted internally of the body and carrying an operator for unlocking the bolt upon predetermined rotor rotation, rotor being rotatable by selective movement of shifters generally tangent to and engageable in turning engagement with selectively located turning tabs on the rotor.

Abstract: A mechanical code convertor, munition arming device using same, and method of transmitting coded mechanical inputs are provided wherein such code convertor has an input member adapted to receive complementary mechanical driving movements, a mechanically locked output member, and apparatus mechanically connected between the input and output members for unlocking the locked output member and providing a desired motion thereof in response to correctly coded mechanical driving movements while maintaining such output member mechanically locked in response to incorrectly coded mechanical driving movements.

Abstract: A mechanical lock device dispensing with a key, wherein a locking and unlocking bar associated with at least one lock unit and a locking and unlocking pawl connected to such bar can be angularly rotated by depressing, in a proper order, pushbuttons of a number r out of a total number n, whereby anybody can operate from outside a dead bolt in a manner to withdraw the same from the mortise. The locking and unlocking pawl is held in engagement within a cutout formed in a control slider fitted in a stem portion of the dead bolt and also in a plurality cutouts formed in the stem portion of the dead bolt and having a larger width than the cutout formed in the control slider. The control slider can be operated by turning a grip. The dead bolt itself can be operated from inside the room irrespective of the position where the locking and unlocking pawl is disposed. The dead bolt can be fitted into a mortise and the lock units can be reset by the reciprocating motion of a lever operated by turning a knob.

Abstract: The disclosure relates to a manually operated recodable coded switch in which a code may be inserted, tried and used to actuate a lever controlling an external device. After attempting a code, the switch's code wheels must be returned to their zero positions before another try is made.

Abstract: Combination lock for the control of the retraction of a lock latch comprising a multiplicity of notched members each displaceable as a function of a numeral or number in the combination, in order that, upon display of the right combination, the notches are aligned with a device for retracting the latch, characterized in that said device comprises means such that, by acting on a same member for instance a button, in a first phase the rake can be moved towards engagement with the notches then aligned, and in a second phase the driving of the latch in a retraction movement can be ensured.

Abstract: A combination lock intended to equip a door of a safe, chest or strong room is disclosed in which both the setting up of the opening combination and the control of said opening are obtained using a single operating member.It comprises:(i) a multiplicity of ward-toothed wheel couples, each ward having a rack-gear with which co-operates the associated wheel adapted to be driven into rotation by the operating member;(ii) catches of the same number as that of the wards and integral with a rake the motion of which, controlled by the operating member is only possible after the setting up of the combination;(iii) bolt blocking means, integral with the rake and adapted to co-operate with a bearing of the tail of the bolt in order to allow or prevent the latter's sliding motion; and(iv) a bolt driving mechanism which carries actuating means for a device intended to jam the combination.

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: A mechanical push button lock including a lock bolt which is mechanically displaced to and from a locked position by the cooperative engagement of push button driven motion inducing means and bolt actuating means is disclosed. The motion inducing means is preferably formed as a conical element mounted to the inner end of each push button, and the bolt actuating means is preferably formed as a slide plate having a plurality of openings therein. The conical elements are skewed about their longitudinal axes so that axial advancement of the conical elements into the openings of the slide plate causes the slide plate to be preferentially displaced in a predetermined direction causing locking or unlocking of the lock mechanism. Means is also disclosed for spring biasing the push buttons and for operating the lock bolt independently of the push buttons.

Abstract: This invention pertains to a security lock of the combination type for the ignition, hood and trunk compartments of an automotive vehicle. The proper sequential operation of a plurality of pre-selected push buttons associated therewith conditions the electrical system of the device to permit the conventional ignition key of the vehicle to be actuated to start the car engine, or to selectively operate switches to open the hood or trunk lid by means of solenoid latches. Each push button is provided with an arm which actuates a control shaft to a limited degree and is lockingly engaged by a lock bar to condition the electrical system to permit operation of the ignition key, or the trunk or hood switches when the proper sequential manipulation of the push buttons has been accomplished. When a single push button is actuated out of sequence, the lock bar is released and the entire system returns to a neutral condition.