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 lock includes a cylinder with a locking tab extending axially from a distal end, a rod movable between a locked position and an unlocked position. At least one protrusion on the rod, and a pair of blocking elements positioned adjacent to the locking tab. A marked wheel is rotatably mounted on the rod and cylinder, and includes an inner wheel including a ridge extending from an inner surface and a slot extending through the ridge. The rod slides relative to the cylinder when the slot is aligned with the protrusion on the rod.

Abstract: To provide a push button lock which includes a housing on which a plurality of depressible push buttons are located, a lock pin which moves axially with the push button and being engageable with and disengageable from the push button, a lock plate formed with a plate key hole and plate lock hole, a reset plate which is provided parallel to the lock plate, a driving cam linked to a deadbolt lock, and the security-code controller detachably attached to the housing. A mechanism and components for setting and storing a security code for locking and unlocking are assembled in a cartridge. The cartridge is detachably attached to the inside of the housing so that various surface designs are available.

Abstract: A tamper-resistant pill bottle for securely storing a quantity of medication. The pill bottle includes a receptacle, a cap for fitting over the receptacle, and a combination lock integral with the cap for releasably locking the cap to the receptacle. The combination lock includes a series of combination wheels that partially protrude through a sidewall of the cap and can be rotatably manipulated by a user. The combination for the combination lock can be set by a user upon receipt of the pill bottle. The pill bottle further includes an inconspicuous defeat mechanism integral with the cap for allowing the pill bottle to be opened, preferably by a pharmacist, if a user forgets the combination of the combination lock.

Abstract: An error-proofing combination padlock has a casing assembly, multiple dials, multiple sleeves, a shackle, a locking bolt and a spring. The dials are mounted rotatably inside the casing assembly. The sleeves are mounted rotatably and respectively inside the dials. The shackle is mounted retractably and pivotally on the casing assembly. A locking bolt is mounted slidably through the sleeves. The error-proofing combination padlock prevents dials from rotating except when the shackle is located in the locking (first) position or the combination-resetting (third) position and avoids a new and unintended unlocking combination arising during a resetting operation of the combination.

Abstract: A combination cable lock includes a cable, a support rod attached to the one end of the cable, multiple first and second locking lugs respectively formed on opposite sides of the support rod, each of the second locking lugs having a dimension different from that of the first locking lug, multiple tumblers each including a number wheel rotatably mounted on the support rod, a follower detachably secured in the number wheel, and containing a first locking recess aligning with and having a dimension corresponding to the first locking lugs, and a second locking recess aligning with and having a dimension corresponding to the second locking lugs, and a number reset device abutting one of the tumblers to detach the follower from the number wheel such that the number wheel can be rotated relative to the follower.

Abstract: A figure wheel of a combination lock has a hollow wheel body with a contact ring securely attached therearound. The wheel body has an annular portion integrally formed therein, an engagement gearing integrally formed at an inner side of the annular portion, a filling opening defined in an outer side of the annular portion, raised figure marks integrally formed on an outer surface of the wheel body and an annular recess defined in a remaining area of the outer surface of the wheel body. The contact ring of the figure wheel is formed by injecting a slip-resistant plastic material into the annular recess from the filling opening via the throat, whereby the outer surface of the figure wheel is slip-resistant and the figure marks of the figure wheel are firm and abrasion-resistant.

Abstract: A combination of the inventive combination lock can be easily and conveniently changed by the user. A clutch selectively disengages the drive tumbler from the lock spindle. With the drive tumbler disengaged and the tumblers in an aligned position, the user rotates the lock knob by a desired increment, thereby changing all of the numbers by the increment. In one embodiment, the clutch is operated by a cup mounted around the drive cam and engaging the drive tumbler, a spring biasing the drive tumbler against the cup and the drive cam, and the cup carrying a button that, when pressed, moves the drive tumbler out of engagement with the drive cam. In another embodiment, the clutch is operated by a thumb screw projecting through a rear panel of the combination lock that moves an upper part of the drive cam out of engagement with a lower part of the drive cam, allowing relative rotation of the lock dial and the drive tumbler.

Abstract: A combination padlock includes a plurality of dials longitudinally rotatably mounted in a central portion of a casing having two opposite secant peripheries of each dial protruding frontwardly and rearwardly from the casing for a firm rotating dialing operation by a user's two fingers disposed on a front and a rear side of the casing for ensuring a precise lock opening or closing operation and for preventing an unexpected impact or damage of the lock caused by an external force or object.

Abstract: A tumbler wheel scrambler assembly for combination locks of the type having a plurality of tumbler wheels and a driving cam arranged in a stack in a lock case with lost motion couplings for rotating the tumbler wheels upon rotation of the driving cam by a dial, and having a slidable bolt and pivoted fence lever for moving the bolt from projected locking position to unlocking position when the proper opening combination has been dialed. The lock case has a scrambler mounting post therein and the scrambler included a two piece housing of mating housing halves collectively defining guide channels for elongated slide members having hook formations protruding into positions to engage with gates of the tumbler wheels for spring forced scrambling of the tumbler wheel positions during displacement of the bolt from projected locking position. The scrambler housing halves have mounting ear formations for collectively encircling the mounting post to pivotally support the scrambler housing from the lock case.

Abstract: A combination lock assembly for safes in which the combination can be easily reset without dismantling the assembly or changing its original adjustment for smoothness and consistency of tumbler wheel motion. The tumbler wheel and spacing washer components of the assembly are all mounted on a bushing that also includes an end cap. The tumblers and spacers are spring biased by a wave washer so that the drive tumbler, which includes a plurality of angularly spaced holes, presses against the end cap. One of the holes is aligned with a drive stud on the drive cam that is used to position the tumblers. In the event the drive tumbler should receive uneven pressure from the drive studs (e.g., due to improper alignment of the safe's drive spindle), the tumbler wheels and washers are all held together by the bias of the wave washer and are maintained with their engagement surfaces parallel with each other, permitting proper operation without undesirable wear.

Abstract: The tumbler wheels have a plurality of false gates, each having a width, depth and/or angular position feature which is a random value selected from within given circumferential, radial and/or angular locational limits, respectively, to foil sophisticated sound wave analyzers. Additonally, the wheel may include an outer periphery whose radius between pairs of adjacent gates is randomly variable within given limits. A method and apparatus for producing the random wheels in large batches includes spindling a large number of blank wheels on an arbor and randomly rotating the arbor selectively relative to a cutting tool which is randomly movable selectively in two axes.

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 lock of the type adapted for changing of the combination by a change key, a lock case housing, a stack of a plurality of tumbler wheels loosely journaled on a tumbler post for rotation about its axis and each including an annular outer rim portion and an inner annular hub portion having teeth releasably intercoupling the hub portion and rim portion at any of a plurality of relative angular positions. The rim portions of the tumbler wheels have specially shaped peripheral gates to receive confronting portions of a fence on the fence lever when the tumbler wheels are properly aligned. The tumbler post is supported within the tumbler wheel hub portions for nonrotatable axial movement to shift the hub portions axially relative to the outer rim portions between coupled and decoupled relation.

Abstract: A combination lock of the type adapted for changing of the combination by a change key, a lock case housing, a stack of a plurality of tumbler wheels loosely journaled on a tumbler post for rotation about its axis and each including an annular outer rim portion and an inner annular hub portion having teeth releasably intercoupling the hub portion and rim portion at any of a plurality of relative angular positions. The rim portions of the tumbler wheels have specially shaped peripheral gates to receive confronting portions of a fence on the fence lever when the tumbler wheels are properly aligned. The tumbler post is supported within the tumbler wheel hub portions for nonrotatable axial movement to shift the hub portions axially relative to the outer rim portions between coupled and decoupled relation.

Abstract: A combination lock of the type adapted for changing of the combination by a change key, a lock case housing, a stack of a plurality of tumbler wheels loosely journaled on a tumbler post for rotation about its axis and each including an annular outer rim portion and an inner annular hub portion having teeth releasably intercoupling the hub portion and rim portion at any of a plurality of relative angular positions. The rim portions of the tumbler wheels have specially shaped peripheral gates to receive confronting portions of a fence on the fence lever when the tumbler wheels are properly aligned. The tumbler post is supported within the tumbler wheel hub portions for nonrotatable axial movement to shift the hub portions axially relative to the outer rim portions between coupled and decoupled relation.

Abstract: A padlock includes a casing having an U-shaped fixed shackle protruding on a side wall of the casing, a reciprocating actuator linearly moving in the casing and having a movable shackle fastener formed thereon to operatively form a loop with the U-shaped fixed shackle for locking purpose, a plurality of dials and clutch wheels rotatably mounted in the casing with each dial resiliently engaging with each clutch wheel, wherein the reciprocating actuator includes plural pairs of longitudinal extensions, adapted to be operatively obstructed against the clutch wheels when downwardly depressing the actuator to lock the padlock, or adapted for operatively clamping the plural clutch wheels to allow the free rotation of the dials for setting a new combination when downwardly depressing the actuator to open the shackle.

Abstract: A security system having a secure enclosure for holding an object. Access to the enclosure is controlled by a combination lock having a tumbler arrangement adapted for having its combination changed either by hand or with use of a key. The tumbler arrangement includes an apparatus for mounting a plurality of tumbler wheels in a stacked relationship for rotation about an axis. Each of the tumbler wheels has an inner element releasably engaged with a circumferentially disposed outer element. Each of the outer elements has a peripheral gate and a mechanism for masking the gate. A mechanism is provided for maintaining the inner and outer elements in an engaged condition for simultaneous rotation under normal tumber operation, and a peripherally gated rotatable driver wheel rotates the tumbler wheels. A fence lever includes a nose for contact with the driver wheel and a fence for contact with the tumbler wheels.

Abstract: A combination lock having two or more disks and a cam which includes a drive pin for driving an adjacent disk which, in turn, drives the next disk. The disks have pins adapted to be received in apertures in two or more disks, known as wheel gates, the disks and the cam can be moved inwardly. In this position, a notch on the cam engages a nose on a drop lever which is in turn connected to the locking bolt. Rotation of the cam in one direction will then move the bolt to the unlocked position.

Abstract: A combined key and combination lock herein having a housing fixed to a door which mounts a linear key lock mechanism including spring biased pins or tumblers displaced and aligned by a coded key and a rotary combination lock mechanism including notched or keyed disks selectively aligned by rotation of a numerical dial via a disk transfer mechanism. Shaft and gear members intercouple the key lock mechanism with combination lock mechanism with combination lock mechanism for cooperatively operating a latch bolt to a lock position while a resilient bias device returns the latch bolt to an unlock position. A clutch mechanism selectively disengages the key lock mechanism from the combination lock mechanism so that the numerical dial on the inside of the door may be used solely for unlatching the bolt from its lock position. A releasable stop plunger is spring biased on the housing for disabling both the key lock mechanism and the combination lock mechanism to retain the bolt in its lock position.

Abstract: A security system having a secure enclosure for holding an object. Access to the enclosure is controlled by a combination lock having a tumbler arrangement adapted for having its combination changed either by hand or with use of a key. The tumbler arrangement includes an apparatus for mounting a plurality of tumbler wheels in a stacked relationship for rotation about an axis. Each of the tumbler wheels has an inner element releasably engaged with a circumferentially disposed outer element. Each of the outer elements has a peripheral gate and a mechanism for masking the gate. A mechanism is provided for maintaining the inner and outer elements in an engaged condition for simultaneous rotation under normal tumbler operation, and a peripherally gated rotatable driver wheel rotates the tumbler wheels. A fence lever includes a nose for contact with the driver wheel and a fence for contact with the tumbler wheels.

Abstract: A combination lock has a locking bolt movable in bolt-opening and bolt-closing directions by a bolt-operating knob; a plurality of displaceable locking bars each having a predetermined position dependent upon a set combination; an arrangement for preventing the locking bolt from movement from a fully-closed position unless each locking bar is in its predetermined position; a plurality of displaceable code bars connected to the locking bars; a plurality of displaceable digit slides each having an externally accessible, manually engageable portion, a plurality of digit markings and a lug operatively engaging into the associated code bar; a movable carrier plate traversed by the lugs of the digit slides, whereby the locking bars, the code bars and the digit slides are displaced by the carrier plate during a motion thereof in a direction opposite the direction of movement of the locking bolt during opening.

Abstract: The invention relates to the technical field of combination locks, and in particular to a combination lock of the type having a plurality of combination dials which, once angularly positioned, enable a manually turnable driver element to cause translation of a bolt element by a means of a stud engageable with said combination dials.Provision is made for said stud to be rotatable coaxially with said dials and oscillably movable radially thereto. Further, said dials are defined by a ring which is split by a cut and clamped, by elastic deformation, onto a smooth surface of a hub.

Abstract: Combination locks employ dial-driven rotary elements that must be turned to a predetermined position to open the lock. Each rotary element has a periphery that is circular except for a notch that mates with a ridge portion on cooperable means when the corresponding dial is "on-combination." The cooperable means may comprise a bolt that pivots or slides, for example.

Abstract: Simplified tumbler wheel construction including an outer gate ring and an inner drive ring wherein the two rings are mounted together in snap-lock fashion.The drive ring includes an undulated surface on its outer rim for mating engagement with an inner undulated surface on the mounting surface of the gate ring. The two rings are constructed of suitable resilient material resulting in passive biasing of the undulated surfaces together during normal operation. Adjustment of the drive ring relative the gate ring is accomplished by blocking rotation of the gate ring while applying a rotative force to the drive ring in excess of a predetermined amount to rotate the undulated surfaces relative each other against the resilient bias provided by the two rings. The amount of bias against rotation is controlled by an appropriately placed slot outward of the undulated surface on the gate ring to lower bias resistance to expansion during tumbler wheel adjustment.

Abstract: A gate ring for a combination lock tumbler that has securing means on the gate ring that normally prevents rotation of the gate ring with respect to the drive member. The securing means includes a cam that alternatively releases the securing means to permit rotation of the gate ring with respect to the drive means or returns the securing means to the normal position. The securing means also comprise a flexible web on the gate ring extending adjacent the outside of the drive member. The cam is mounted between the web and a portion of the gate ring. Rotation of the cam to its normal position moves the flexible web to its normal position against the drive member, and rotation of the cam to its releasing position allows the web to move to its releasing position away from the drive member. The web is integrally formed on the gate ring, which is preferably plastic. The web is located along a chord of the circular gate ring perpendicular to a radius extending from the center of the gate ring through to the cam.

Abstract: Combination locks employ dial-driven rotary elements that must be turned to predetermined position to open the lock. Each rotary element has a periphery that is circular except for a notch that mates with a ridge portion on cooperable means when the corresponding dial is "on-combination." The cooperable means may comprise a bolt that pivots or slides, for example.

Abstract: A combination lock of the tumbler wheel type having a plurality of tumbler wheels journaled for rotation on a stationary tumbler post within a lock case and means such as a driving cam for rotating the tumbler wheels to angular positions for unlocking the lock, wherein the lock case is provided with inclined ramp surfaces adjacent one end of the stack of tumbler wheels and a torque adjustment member having spring finger formations movable on the inclined ramp surface is adjustable responsive to insertion and operation of a tool into the lock mechanism chamber of the case to apply selected spring compression forces to the tumbler wheel stack and adjust the tension or torque properties thereof.

Abstract: This invention is concerned with permutation locks having a wheel pack comprising a plurality of rotatable permutation discs, each having a recess which must be correctly aligned before the bolt of the lock can be withdrawn. One known method for determining the positions of the permutation discs is by analysis of X-radiation which has passed through the wheel pack parallel to the axis of rotation of the discs. In locks according to this invention, the opacity of the wheel pack to penetrating electromagnetic radiation along any line parallel to the axis of rotation of the discs is independent of their orientation.

Abstract: A wheel pack and fence utilized to form a radiographically secure combinan lock are disclosed. The wheel pack includes three or more wheels. Each wheel of the wheel pack has a plurality of gates formed in the wheel. Half of the plurality of gates on each wheel are cut halfway through on one side and the other half of the plurality of gates are cut halfway through the other side. The gates are cut in the shape of right triangles and are so positioned that the hypotenuse of each triangular gate on one side of a wheel intersects the hypotenuse of a triangular gate on the other side of that wheel. The fence which must drop into a gate of each wheel to withdraw the lock bolt is designed to contact only one-half of each wheel of the wheel pack. The fence is shaped to fit into a triangular gate of each wheel that is identical in shape and orientation to the fence. There is only one gate on each wheel that matches the fence and therefore there is only one true gate on each wheel.