Abstract: The present application includes a combination lock system having gears, cams, and an interference system. In one embodiment, the angular position of the cams is adjusted by a user interface through operation of the gears. When the cams are in a predetermined position, the interference system is movable with respect to the cams and the system is unlocked. The user interface may be a pushbutton keypad.

Abstract: A gun lock includes engagement structure for engaging the firing mechanism to prevent operation of the firearm. A plurality of rotatable ratchet wheels are provided and a combination disk is engaged to, disengageable from, and rotatable with an associated ratchet wheel. Movable cage structure includes a plurality of keys and each combination disk has an associated key-way, the keys being moveable into the key-ways upon the movement of the ratchet wheels and associated combination disk to an unlocking position. A combination-entering member is associated with each ratchet wheel. A combination-changing member is operable to disengage the combination disks from the ratchet wheels to permit relative movement there between, and thereby relative movement of the key-way of the combination disk relative to the initial position of the associated ratchet wheel to effect changing of the combination of operations of the combination-entering members required to unlock the lock and operate the firearm.

Abstract: A lock includes a housing, a keypad disposed on the housing, and a latch assembled with the housing. The keypad includes a plurality of button assemblies, each including an axially depressible button member including a camming surface, a lock wheel having a plurality of camming teeth, and a latch releasing feature secured to the lock wheel for rotation therewith. Pressing the button member causes the camming surface to engage one of the plurality of calming teeth, thereby incrementally rotating the lock wheel between a plurality of rotational positions. When the button members of a predetermined one or more of the plurality of button assemblies are depressed a predetermined number of times, the latch releasing features of each of the plurality of button assemblies align with a plurality of blocking features of the latch to permit lateral sliding movement of the latch from a locked condition to an unlocked condition.

Abstract: A code lock is revealed. The code lock includes a housing, a return base, a plurality of locking seats, a fixed seat, a moveable seat, a code seat, a plurality of code members and a housing base arranged sequentially from top to bottom. A press button corresponding to each locking seat is disposed on the housing and each locking seat has at least one tooth that locks with a hook of the return base when the press button is pressed to push the locking seat. A stopping block is arranged at the bottom of each locking seat while the code member is set with a code post correspondingly. Moreover, the moveable seat includes a code area and a non-code area for mounting the code member and the code seat has a plurality of C-shaped holes corresponding to the code members. Thereby a simple-structured and easy-operated code lock is formed.

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 pushbutton lock includes a lock core, a panel, and an interference unit. The lock core includes a case with a plurality of apertures, a plurality of button assemblies each movably disposed corresponding to a respective one of the apertures of the case, and a locking unit movably disposed on the case. The panel has a plurality of holes each for partially exposing one of the button assemblies. The interference unit is coupled with the locking bolt. The interference unit can move together with the locking unit to selectively interfere with the button assemblies and restrict the movement of the button assemblies.

Abstract: A key lock structure arranged in a mechanical key lock device refusing any code pressing while locked, so as to avoid finding out the correct codes by try and error. The key lock structure includes a casing, a sliding base disposed in the casing, an orientation frame arranged on a bottom face of the sliding base and a plurality of code-locked keystroke bodies. The sliding base has a plurality of elongation arms parallel to one another, a plurality of slots arranged with the elongation arms in an alternate manner, and a plurality of stop portions disposed in the respective slots. The orientation frame is disposed under the sliding base. Each of the code-locked keystroke bodies has a sliding member, which has an extrusion portion capable of being blocked by the respective stop portion. Consequently, the code-locked keystroke bodies are fixed and cannot be pressed in the lock status.

Abstract: The invention pertains to a safety cabinet with an interior that is enclosed by a housing and a housing front side with a work opening that can be closed with a height-adjustable window. The safety cabinet contains an operating unit for controlling device functions which is integrated into the housing. The operating unit comprises at least one rocker button, the button assignment of which changes depending on the operating state of the safety cabinet in such a way that a certain device function can be controlled in the respective operating state by actuating a button of the rocker button.

Abstract: A combination lock comprising a housing, a locking bolt and a locking breach, at least one locking assembly rotatably supported within the housing and comprising a disc member formed with a peripheral recess, a cam wheel and a reset cam. A locking member is formed with at least one locking lug angularly displaceable between an un-locked position in which all the looking lugs engage within the peripheral recess of the disc members and where the locking breach is disengaged from the locking bolt, and a locked position in which at least one of the locking lugs is disengaged from the peripheral recess, where the locking breach arrests the locking bolt. A planarly displaceable manipulating member comprises at least one follower corresponding with each cam wheel. A reset mechanism is provided for rotating all disc members into a reset position.

Abstract: The present invention provides a locking device designed to open by tactile manipulation, without visual confirmation, of the locking combination. This device comprises a housing, a securing element, and a plurality of tumbling levers located inside the housing. Each tumbling lever is located in a plane of movement parallel to other planes of movements of the other tumbling levers. Also, each tumbling lever includes a tactile engagement surface and engages the securing element so that movement of a tactile engagement surface disengages the corresponding tumbling lever from the securing element.

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 mechanism comprising a housing (20), a locking element (40) fitted with a locking latch (48) and extending into the housing (20), at least two coaxially disposed rotatable locking assemblies (58, 60, 62), each comprising a cogged wheel (68), a locking disc (70) formed with a peripheral recess (84) and a reset element (72) fixable to the cogged wheel (68), a forked locking member (90) pivotally secured within the housing (20) and fitted with first engaging fingers (94), each engaging finger (94) adapted for engagement with the peripheral recess (84) of a corresponding locking disc (70), second engaging fingers (96, 98), each adapted for engagement with a corresponding reset element (72), and a locking lug (140) for locking engagement with the locking latch (48) of the locking element (40).

Abstract: A fuel tank plug structure has a cap assembly provided with a cap member and a push button combination lock, a fixing plate including a lever for cooperating with the push button combination lock, an intermediate portion below the fixing plate defining a interior storage compartment adapted to contain articles such as keys, money, etc., a clogging assembly provided with a tubular portion including a lower engaging portion configured to be removably, received on, so as to close, a container or vehicle fuel tank filler neck and a supporting member causing the intermediate portion to be engaged with the tubular portion through a sealing member. The push button combination lock has a slider which will engage the fixing plate with the intermediate portion upon depressing a correct series of buttons and will disengage the cap member from the intermediate portion when the correct series of buttons are not depressed.

Abstract: A locking apparatus that includes first and second structural elements that are adapted to be juxtaposed and positioned next to one another in a "locked" mode, and physically separated from one another when "unlocked." When in its locked mode, the locking apparatus is restrained against separation until a manual force is simultaneously applied to appropriate levers, ends of which are accessible on the exterior of the apparatus.A plurality of levers are mounted on the first of the two structural elements for rocking movement about a pivotal axis carried by the first element. Each lever has a first end that protrudes externally of the apparatus, and a second end that is sized and shaped so that it may be engaged with a lip surrounding an associated aperture in the second structural element.

Abstract: A locking video cassette case for a single video cassette includes a case defining a space to receive a video cassette, a lid hingedly secured to the case, a first locking member secured to a surface of the case, a second locking member secured to a surface of the lid, the first and second locking members incorporating means for locking the lid in a closed position, and means for manipulating the locking means for releasing the lid from the closed position.

Abstract: A push button combination lock type gas cap and an actuator forming a part thereof, takes the form of a casing which may be mounted to an open end of a fuel tank filling neck with a stopper mounted within the casing for movement between a first position in which the cap is removable from the filler neck, and a second position where the cap is locked thereto. A first center push button mounted on the casing for movement in the direction of its axis between projected and depressed position, shifts the stopper to the first position for locking the cap to the filler tube upon depression thereof. The first push button is maintained in depressed position with a laterally shiftable slide plate operatively engaging the first push button for normally preventing retraction of the first push button absent a selective depression of one or more of a plurality of second push buttons mounted circumferentially about the center push button.

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 device that may be embodied either as an interlocking puzzle game or as a security device and formed of a body and associated locking member adapted to be received by the body. A plurality of combination blocks are supported in the body along with a plurality of keys. The blocks have slots for receiving the keys with each key having a locked position and an unlocked position. The key in the locked position engages the locking member to prevent disengagement thereof from the body. The key in the unlocked position is disposed in the block and out of engagement with a locking member to enable disengagement thereof from the body. The combination blocks may be rotatable in the body.

Abstract: A luggage lock comprises a hasp rotatably mounted to one container section, and a locking ledge carried by the other container section. A permutation locking mechanism is mounted on the hasp and comprises a plurality of manually rotatable adjusting disks, and a plurality of rotatable locking disks coupled to associated ones of the adjusting disks to be rotated thereby. Each locking disk includes a peripheral portion positioned behind the locking ledge when the locking disk is in an on-lock condition to prevent the hasp from being rotated to an open position. A code resetting mechanism enables the adjusting disks to be rotated relative to the locking disks to change the code.

Abstract: A combination lock for a briefcase, comprises a case body, a push button, a plurality of combination dials, a plurality of driven wheels, a sliding sheet, a positioning sheet, a sliding block, a structural body, a back cover, and a plurality of springs, wherein the combination is changeable, and the combination dials are arranged non-axially so that the lock is simple in structure, easy to operate, and small in size. This lock is especially suitable for a briefcase.

Abstract: An improved combination lock of the push button type which consists of three improvements. Firstly, its sliding member is not in direct contact with the latch which locks the hook, so that even an adroit lock-picker finds it difficult to find the correct code. Secondly, it is provided with a device to reset all the depressed buttons. Thirdly, the characters corresponding to the combination buttons are coated with phosphorescent material so as to enable one to discriminate the characters in the dark.

Abstract: A opto-electric combination lock is described in which a single light emitting diode provides light to a phototransistor through a path which can be created by pulling and rotating a plurality of plunger assemblies. Each of the plunger assemblies have an opening therethrough which is placed in alignment with the path if that particular plunger assembly is pulled and rotated by the combination amount. The lock includes a switch for enabling the power supply only upon the pulling of a particular one of the plunger assemblies and further includes circuit means for actuating an event such as unlocking a door upon the creation of the light path.

Abstract: The improved guard plate of this invention is used to protect the cylinder of a lock. It includes a relatively flat body, attached to the door in the vicinity of the cylinder, and a disc rotatably mounted between the door and the flat body. In an open position, an opening in the disc permits access to the cylinder; and, in the closed position, the solid portions of the disc do not permit access to the cylinder. In adition, rotatable fingers are provided so as to lock the rotatable discs in either the open or closed position. Further, a stud extends from each of the rotatable fingers into and through the door. On the end of each stud is an electrical contact which may come into intermittent contact with an electrical contact positioned on the inside surface of the door. Thus, rotation of the rotatable fingers in the incorrect direction or too far in the correct direction will cause touching of the two electrical contacts and completion of an electrical circuit which will activate an alarm.

Abstract: A combination lock has an array of combination elements that are each movable between first and second positions. Each element 25 has to be in a preselected one of the two positions for the lock to open, and the combination is entered by either moving or not moving each element from an intial or reset position. Then a reader 30 adjacent the elements 25 is simultaneously moved against all the elements to test their positions. Any element not in the proper position blocks the reader from movement; but if all the elements are in their preselected positions, they allow the reader to move and the lock to open. Combination elements 25 are preferably arranged concentrically around a spindle 15 having an external knob 16 that can rotate and move the spindle axially. Each of the elements 25 is preferably a slidable plate with an eccentric notch 26 that confronts and overlaps with a radial notch in reader 30.

Abstract: A lock assembly incorporating an exterior knob assembly which is axially movable into engagement with a latchbolt. The knob assembly includes a shaft having a circumferential groove into which a plurality of locking pins extend. The position of the locking pins is controlled by means of a number of combination knobs, and normally one or more of the locking pins is positioned within the circumferential groove to prevent axial movement of the exterior knob assembly. When the proper combination is chosen, the locking pins will be out of engagement with the groove, thereby allowing the exterior knob assembly to be moved into engagement with the latchbolt. The latch bolt can also be actuated by means of an interior knob assembly. The interior knob assembly is movable into a position which prevents engagement of the exterior knob assembly with the latchbolt despite the fact that the locking pins are all retracted from the circumferential groove.

Abstract: An amusement device consists of a box-like structure having a transparent lid which may be opened through the proper positioning of a plurality of tumblers contained on an exterior face of the structure. The transparent lid is of a spring biased construction to facilitate its opening once the proper combination on the tumblers has been set, and a troll-like figurine is releaseable from an interior portion of the structure upon an opening of the lid. If desired, the troll may be provided with an award deliverable to the bearer. Further, the combination required to open the structure is changeable through the use of selectively positionable gears associated with the tumblers.

Abstract: The improved guard plate of this invention is used to protect the cylinder of a lock. It includes a relatively flat body, attached to the door in the vicinity of the cylinder, and a disc rotatably mounted between the door and the flat body. In an open position, an opening in the disc permits access to the cylinder; and, in the closed position, the solid portions of the disc do not permit access to the cylinder. In addition, rotatable fingers are provided so as to lock the rotatable discs in either the open or closed position.

Abstract: A door lock includes a number of code elements for controlling locking and having a clutch including three cams and three cam followers allowing opening when adjusted according to a prescribed code. The cams are balls embedded in a swash plate that wobbles on a bearing ball and are located at the corners of an equilateral triangle. When coded for opening, the three cam followers simultaneously contact the three cams to prevent wobbling and allow the followers to operate as drivers for the swash plate and a lock closing body.

Abstract: A combination lock comprising at least two coaxially arranged elongate members, first and second rotatable combination dial members for each elongate member, an abutment member on each elongate member, a bolt which is adapted to slide backwards and forwards in the direction of alignment of the elongate members, and a bolt-operating member, each first combination dial member being fixed to its elongate member and each second combination dial member being rotatable with respect to its elongate member, and each second combination dial member having a central aperture for receiving the elongate member and a slot for receiving the abutment member, the combination lock being such that when the code set on all the second rotatable combination dial members agrees with the code set on all the first rotatable combination dial members each abutment member can move into the slot on its second combination dial member to allow each elongate member to move through its second member for allowing withdrawal of the bolt, and t

Abstract: A multiple pushbutton permutation lock in which push pins equally retarded frictionally in their movement must be manually moved and held actuated in the right combination and pattern to permit a spring-urged slide bar to slide out of a rotationally located critically limiting slot on a hidden disk before manual actuation of the latch can be accomplished for opening the door of the safe.

Abstract: A lock comprising a bolt slidable into an operative position and from there rotatable into a locked position in which pins projecting from the bolt prevent it from sliding: locking members are rotatable about axes orthogonal to the axis of the bolt into positions where they interfere with rotation of the pins, and prevent the bolt from being rotated out of the locked position, unless the locking members are properly positioned about their axes.

Abstract: A locking mechanism in which a series of disks each having a radial hole therein are mounted on the inside of a door. Said disks are connected to dials on the outside of the door which are associated with numbered indicia and rotatable to vary the rotatable and axial positions of the holes in the disks. A locking bolt is slidably mounted on the inside of the door and interconnected to a series of pins which are receivable in the holes in said disks when said holes are aligned therewith. A lever is connected to the locking bolt and operable from outside the door to slidably move the bolt from a locked position to an unlocked position when the dials are set at preselected numbers on the indicia to rotatably align the holes in said disks for reception of the pins.