Abstract: A rotating disk lock mechanism that includes a lock housing containing a plurality of rotatable disks. Each disk having a central aperture and being positioned in a stack such that the central apertures form a keyway. At least one of the disks includes a reduced central aperture with a diameter that is substantially less than a diameter of at least another one of the central apertures. The combination of the lock mechanism is determined in part by the number of disks with reduced central apertures and their placement in the stack.

Abstract: The invention relates to a disc tumbler cylinder lock and key combination. The disc tumbler cylinder lock (1) of the combination comprises rotation limiting means (3) of the key, and the key (9) comprises guidance surfaces (10) for the rotation limiting means. The rotation limiting means comprise a frame (6), which comprises a key profile opening (4), and a casing (5), which at least partially surrounds the frame. The frame (6) comprises a limiting mechanism (24) and a locking mechanism (25), which are disposed in a line such that the limiting mechanism is on the other side of the key profile opening (4) and the locking mechanism (25) is on the opposite side of the key profile opening.

Abstract: A lock includes a housing, a cover, a lock cylinder holder, a lock cylinder, a cam, a resisting shaft, at least one latching block, and at least one first elastic member. The cover is secured to one end of the housing. A gap is formed between the cover and the housing. The lock cylinder holder is secured to the housing. The lock cylinder is rotatably mounted in the lock cylinder holder. The cam is received in the housing and secured to the lock cylinder. The resisting shaft is rotatably mounted in the housing and includes a frustum shaped end. The latching block is received in the gap. The latching block includes an inclined surface corresponding to the frustum shaped end. The first elastic member is configured to connect the latching block to the cover or the housing. An electronic device using the lock is also provided.

Abstract: A cylinder lock with a rotatable key plug (112) having a profiled keyway (113,116), the keyway being configured to accommodate an elongated, substantially flat key blade (120) with a longitudinal groove (122). The keyway in the key plug has two opposite lateral sides and a profile rib (150) located at a substantially flat lateral side. The profile rib has a downwardly projecting tongue portion (161) configured to extend inside the profile groove (122) upon inserting the key (120) into the key plug (112) of the lock, and the tongue portion of the profile rib is extended downwardly into a lowermost, massive end portion (162) which has two opposite side surfaces (163,164) and a lowermost transverse end surface (165) which is substantially flat or slightly curved.

Abstract: An optical security system having a key, an optic lock, and a processing system. The lock generally has a plurality of optic reflective sensors, a plurality of readable discs, and a controller for processing information to and from the plurality of sensors. The optic security lock senses the surface changes of state during the rotation of the plurality of discs caused by the turning of the fully-engaged key. The data from the sensors is communicated to the controller, with the controller having a processor capable of processing data from the sensors. The processing system analyzes the data from the controller and compares the data to known information in a database for generating a lock command signal. The optic lock can further include input device for inputting transaction data to facilitate consumer purchasing transactions, security transactions, verification transaction, credit card transactions, and the like.

Abstract: A lock assembly having a housing containing a push rod movable along its longitudinal axis between a locked position where the push rod is extended outwardly of the housing and a retracted, unlocked position. A movable latch moves radially to engage with the push rod to hold it in the locked position and to disengage from the push rod to allow the push rod to move to its unlocked position. The latch member has an opening that, when aligned with the main axis of the push rod, allows the push rod to pass through the opening but when the latch member is offset with respect to that axis the latch member abuts against the push rod to prevent the push rod from moving to its unlocked position. A pushbutton moves the latch member and a locking assembly blocks the movement of the pushbutton when the lock assembly is locked.

Abstract: A lock core unit of a weather-resistant lock apparatus includes an inner shell received in and rotatable relative to a lock shell, a plurality of locking plates received in and rotatable relative to the inner shell and cooperating to form a keyhole of the lock core unit, a locking unit operably associated with the locking plates for locking the inner shell against rotation relative to the lock shell in a locking state of the locking plates, and for unlocking the inner shell for rotation relative to the lock shell in an unlocking state of the locking plates, a latch actuator coupled to the inner shell, and a plurality of spacer plates, each of which is disposed between an adjacent pair of the locking plates. The spacer plates are made of a material with a hardness less than that of the locking plates.

Abstract: A lock has an outer housing, which has an outer slot at an interior side. An inner housing is received in the outer housing for rotation and has an inner slot and a driving section. Three locking plates are received in the inner housing, each of which has and a recesses at a periphery thereof. A movable pin is moved to be received either in the inner and outer slots or in the inner slot and the recesses. A first tumbler pin is provided at the outer housing and has an end received either in the annular slot or in the position slot. The inner housing is reciprocated between a first position, in which the position pin is moved to a position slot to restrain the inner housing from rotation, and a second position, in which the position pin is moved to an annular slot to release the inner housing.

Abstract: A lock apparatus includes a lock core device received in a lock core chamber of a lock body and having a key operable lock core, a shackle member with a leg portion inserted into a shackle insert hole in the lock body, and a catch member received in a catch chamber that extends from the lock core chamber to the shackle insert hole. The lock core device has a latch member disposed in the catch chamber and formed with a pin hole that is eccentric to an axis of the lock core. The catch member has a first end portion for engaging the shackle member, and an opposite second end portion formed with a pin which extends rotatably into the pin hole for engaging the latch member such that the catch member is movable between locking and unlocking positions during locking and unlocking movement of the latch member.

Abstract: A cylinder lock and key combination comprises a lock body, a turnable lock cylinder located inside the lock body, and a set of locking discs located inside the lock cylinder. Each locking disc has a peripheral notch and a key opening and is turnable in the lock body in a first direction by application of turning force to a counter surface bounding the key opening. Each locking disc has an opening position in which its peripheral notch is at the position of an axial slot in the lock cylinder, such that when all the locking discs are in their respective opening positions the peripheral notches form a uniform channel at the position of the axial slot. A locking bar has a locking position in which it prevents turning of the cylinder relative to the lock body and a releasing position in which it is received in the channel formed by the peripheral notches of the locking discs and releases the cylinder for turning relative to the lock body.

Abstract: The disclosure relates to an anti-theft device notably for a motor vehicle. The anti-theft device includes an electrical switch for the detection of key insertion into the anti-theft device. A pusher also included in the anti-theft device slides in both the proximal and distal directions parallel to a key insertion axis. The pusher activates the switch by using an elastic force that tends to move the pusher back against a stop, which holds the pusher in a retracted rest position when the key is withdrawn.

Abstract: Improved squiggle keys and cylinder locks include a squiggle key groove formed along a first broad surface of the squiggle key and a plurality of bittings formed along a second opposite broad surface of the squiggle key. The cylinder lock includes a plurality of rotatable discs that have groove-following elements that are rotated via the groove on the key. The rotatable discs operate to prevent a plug of the cylinder lock from rotating unless a correct squiggle key is inserted into a keyway in the plug. The bittings formed along the second opposite broad surface of the squiggle key are generally circular and have inner regions with a different depth than outer regions of the bittings. As a result, tumbler pins can be located along the inner and/or outer regions of the bittings which enables increased keying capabilities and variations and which enables a common lock to be operated by keys for different cylinder locks.

Abstract: A lock apparatus includes a lock device and a coded key. The lock device has a lock shell and a cylindrical lock core unit received in the lock shell. The lock core unit has an axial key hole and is provided with a latch actuator. The key is extendible into the key hole and is operable so as to permit rotation of the lock core unit relative to the lock shell for moving the latch actuator from a locking position to an unlocking position. The key has a head portion and a shank portion which has a cross-section in the form of a circular sector with first and second planar surfaces that extend along length of the shank portion, and a curved surface that interconnects the first and second planar surfaces and that has an arc length greater than 180.degree.. The shank portion is formed with a plurality of key bit projections and key bit grooves on one of the first and second planar surfaces.

Abstract: A key lock mechanism which can be made entirely of molded plastic parts having (1) a lock shell that can be snap fit in a mounting opening, wherein the shell is a predominantly cylindrical casing having a front end, a rear end, and an interior longitudinal channel; and (2) a lock plug, having a front end and a rear end, longitudinally housed within and rotatable about the longitudinal axis of the shell. The front end of the lock plug has a keyway allowing the insertion of a key to operate a double-acting, bar tumbler having a rocker body with a front peg and rear peg; an integral axle perpendicular to and connecting the center rocker body to a left and a right pivot pad upon which the bar tumbler pivots. The insertion of the key pivots the bar tumbler within the longitudinal shell channel and enables the key to turn the plug within the shell to operate the lock. The rear end of the plug receives a snap on actuation means such as a cam.

Abstract: A flat lock set has a flat lock having a cylinder, a tumbler, several rings and springs and a key having several stepped blades each having several shoulders. The cylinder is mounted in a door and has four groups of ribs formed therein. Each group includes several separate ribs defining several passages extending perpendicular to a length of the cylinder. The cylinder has a first end defining a first opening and a second end integrating with a ring defining a second opening. The tumbler has a disk integrating with a key receiver integrating with a latch carrier. The key carrier is separated into several prongs. The rings each have two ears formed along an outer rim thereof and several arms formed along an inner rim thereof. When the rings and springs are alternatively mounted on the first sections of the prongs, the arms formed on the rings are sited between the prongs.

Abstract: A safety lock for house doors and the like, adapted to be operated by a key having a front active profile (3), comprises an outer drum member (4), a cylindrical body (9) rotatably mounted with respect to the drum member and arranged within the latter and a number of safety plates (29) having notches (29a), housed internally to a cavity (13) of the cylindrical body and pivotally mounted around a pin (30). A tab (27) prevents, when the lock is locked, the rotation of the cylindrical body (9) with respect to the drum member (4). By inserting the key in the keyhole, the safety plates reach a reciprocal position which is such that the notches (29a) define a seat which receives the tab (27) thereby unlocking the lock. A cam member (33), which is tiltalble around the pin (30) and is urged by a spring (24), brings the tab back in the locking position when the key is withdrawn. By the oscillating arrangement of the safety plates (29) and the cam member (33), a lock of reduced axial bulk is obtained.

Abstract: A lock mechanism is disclosed in which a hollow cylindrical housing is provided with at least one interior longitudinal slot. A cylinder having a longitudinal keyway is inserted into the housing and an endpiece having at least one radial groove and one circumferential groove is attached to the housing. At least one tumbler is pivotably mounted within the cylinder on an axis transverse to the cylinder. The tumbler has a locking edge sized and positioned to extend into the longitudinal groove in the housing when the tumbler is in a locked position and to be within the cylinder when the tumbler is in an unlocked position. The tumbler also has a tab sized and positioned so as to fit within the radial groove of the endpiece when the tumbler is in a locked position, and to align with and be capable of traveling through the circumferential groove of the endpiece when the tumbler is in an unlocked position.

Abstract: Magnetic key and barrel device wherein the magnets (8) of the key (1) cooperate by repulsion with magnets (25-225) embedded into bascule elements (21-221) movable between a locking position of the lock and an operating position wherein the bascule elements release the rotor-stator interface. The rod (7) of the key (1) is configured as a tube in the wall of which are embedded the magnets (8), and the rotor is configured as a sleeve (14) in the wall of which are arranged the bascule elements (21 and 221). The sleeve (14) has in its center a cylindrical ferrous core (17) which permanently attracts the magnets (25 and 225). The stator (3) which surrounds the rotor (2) is drilled with ports (26 and 226) wherein the magnet-free bascule (21 and 221) ends are sunk. Application to any locking and control lock.

Abstract: An auto-directing lever lock includes a case housing a cylinder (4) with a plug (3) mounted for movement therein. The plug includes a keyway (14) for accepting a key bit (7). A keyway opening (15) on the surface of the plug provides access for lever tumblers (6) to engage lever steps on the key bit. The key bit is detachable from a bow and shank section (8), and inserted in to the keyway through a key hole (39) in the case. The tumblers ride on a surface of the plug and are held away from the lever steps of the key bit during rotation of the plug, until the tumblers disengage the plug surface due to the keyway opening therein. The tumblers, when disengaged from the plug surface, fall onto the lever steps of the key bit to align gatings (32) of the tumblers so a bolt stump (28) may pass therethrough to retract a bolt (5) of the lock.

Abstract: A rotatable magnetic tumbler apparatus for a magnetic lock comprises at least one rotatable magnetic tumbler, whose rotary orientation is adjustable by a magnetic key corresponding to a preselected magnetic code, and which is contactable by a contacting element of the lock. The rotatable magnetic tumbler is movable in the direction of the rotation axis of the tumbler, and the contacting element is suitably mounted in the magnetic lock for making contact with the rotatable magnetic tumbler in a predetermined position on the rotation axis.

Abstract: A lock cylinder comprises a cylinder housing and a cylinder core having at least one rotatable magnetic tumbler supported therein, in which at least one axially slidable locking element is provided. The locking element has projections thereon directed toward the exterior. The locking element has a contacting slider having contacting elements projecting toward the rotatable magnetic tumblers, and a locking slider engaged with and fit together with the contacting slider, on which are mounted the projections. The lock cylinder is also provided with a pressing member fixed with respect to the cylinder housing, by which the locking element in the O-position of the cylindrical core is held against the force of a compressible spring engaged to the locking element, and is pushed into an unlocking position on rotation of the cylindrical core.

Abstract: The lock cylinder comprises a cylinder housing and a cylinder core having at least one rotatable magnetic tumbler supported therein, wherein in the cylinder core at least one axially slidable bolt member is provided, whose slidability is controlled by the rotatable magnetic tumblers. The bolt member has two control tips positioned at opposite ends thereof, which are guided with two control surfaces mounted, so as to be nonrotatable with respect to the cylinder housing and positioned opposing each other. Thus a positively actuated control of the bolt member is provided, which is independent of the sliding force, which would be provided by a spring. One of the control tips is slidable against an elastic restoring force, whereby, after a certain limiting force has been exceeded, a relative displacement between the control surfaces of the bolt member occurs so that a subsequent rotation of the cylinder core without collateral axial displacement of the bolt member is made possible.

Abstract: The combination lock is one wherein movable members of the combination mechanism are set in decoding position by a key in the form of a rotatable shaft with a head at one end serving as a handle. Rotation of the key to proper decoding position is determined by shifting an index mark on the key relative to selected units of a set of letters or numerals on the lock housing. The combination mechanism makes use of a multiple number of pairs of discs concealed in the housing which must be successively set in proper decoding position, one disc relative to the other, to release a lock operating plug. In proper decoding position a slide bar, which normally blocks rotation of the lock operating plug, is shifted by key action into openings provided in the discs and out of blocking engagement with the plug, in which position the plug is free for rotation by the key.

Abstract: The present invention relates to a safety lock including a cylindrical body in which is movably mounted a cylinder containing a safety mechanism which is constituted by pivoting blades meshing respectively with toothed wheels loosely mounted on an axis pin transversely connected to a cylinder and each provided with a notch adapted to be positively and drivingly connected to a catch for operating the lock mechanism, only after the notches are caused to coincide with the catch which initially is spaced from the wheels.

Abstract: A control device for a magnetic cylindrical lock having a cylindrical housing and a cylindrical plug disposed for rotational and axial movements in the housing, comprises a longitudinal bore in the plug, magnetic rotary members arranged for rotation across the longitudinal bore, and arresting means for blocking the rotation of the plug in one axial position of the latter and for permitting the rotary movement in another axial position.

Abstract: A two-stage tumbler lock wherein there are two sets of discs, one set being actuatable by a key to free the second set for unlocking movement under the influence of the key. The invention also contemplates a lock designed to receive a peripheral key to cause the above operations.The invention further contemplates a dog leg key particularly a peripheral dog leg key for effecting the above operations.The invention still further contemplates a lock having a peripherally located reset member which makes picking most difficult. A further feature of the lock and its key is that the two coact to perform their intended functions in a manner such that the key cannot be withdrawn from the lock until it is returned to the position it first assumed when inserted into the lock.Another feature of the invention is a disc lock in which the discs have spaced lugs defining the extent of disc movement in regard to a locking member.

Abstract: A cylinder lock has a lock body with a cylindrical throughbore and two longitudinally extending grooves in its internal surface. A lock cylinder is mounted in the throughbore for rotation therein between a locking position and an unlocking position and has a longitudinally extending key passage and is responsive to the insertion of a suitable magnetic key in the key passage to enable rotation thereby from a locking to an unlocking position. A plurality of magnetic bodies are mounted on both sides of the key passage for rotation about an axis perpendicular to the longitudinal axis of the cylinder to a unique angular position when the suitable key is inserted with corresponding recesses which are longitudinally aligned in two lines when the magnetic bodies are in their unique position.

Abstract: The present magnetic lock is operated by a key including control magnets. For this purpose a locking bar is radially shiftable in a locking cylinder in a housing. Magnetic rotors release or lock the locking bar which is spring biased toward the magnetic rotors. A spring biased control member is shiftable into a locking channel of the locking bar. The control member is equipped with entraining elements which engage the locking bar.

Abstract: The plug of a cylindrical lock includes at each side of its key channel a blind boring communicating with a conical recess in an arresting plate secured to the housing of the lock. The blind boring intersects cylindrical rotary control members arranged for rotation in the plug and each having a diametrical passage coinciding in one angular position thereof with the blind boring. A series of arresting balls is arranged in the blind boring and in respective passages in such a manner as to resume in the aligned position of the members a blocking position in which the terminal ball is in engagement with the conical recess. During the rotation of the plug by a correct key the arresting balls are shifted by the inclined surfaces of the conical recess into the blind boring and the plug is free to rotate. By the insertion of a wrong key at least one passage is misaligned and consequently the terminal arresting ball cannot be removed from its arresting recess.

Abstract: The control device for cylindrical locks includes a housing having on its inner surface longitudinal and annular guiding recesses, a cylindrical plug or core rotatable in the housing about its center axis and defining on its surface second recesses, at least one magnetic rotor supported in the plug for rotation about an axis transverse to the center axis and defining a third recess alignable with the second recess, control strap arranged for axial displacement on the plug and being rotatable therewith, and arresting elements projecting from the strap into the first and second recesses and being axially displaceable with the strap into engagement with the third recess in the rotary member when this third recess is in alignment with the second recess.

Abstract: There is disclosed a Bramah lock which comprises locking lever bars mounted for longitudinal displacement and rotation, said bars having each two cuttings, thereby providing the lock with a double safety device as long as the bars are not actuated by the key to their unlocked position. The lock is therefore a double security lock offering an increased resistance to unauthorized attempts to pick it and a larger number of combinations.

Abstract: There is disclosed a Bramah lock suitable for use on a safe-deposit box or an armored door in which the bolt of the locking mechanism is actuatable by bars which are disposed in serially arranged sets extending through the door to a keyhole and co-operable by abutment so that displacements of the bars relatively adjacent to the keyhole are not transmitted to bars relatively remote therefrom. An externally toothed gear coaxially of the barrel is operatively disposed between the barrel and the bolt for controlling the operation of the latter. There are a plurality of toothed sector members with slots in engagement with a fence plate when they are in alignment, the fence plate being driven by a check fence plate resiliently connected thereto and displaceable in response to the barrel motion so as to permit rotation of the barrel even if the fence member is not in engagement with the slots in the sector members.

Abstract: A key profile system of a disc cylinder lock is disclosed in which system the appropriateness of a certain key profile for use in a lock is determined by the form of a key receiving opening in the actual locking elements of the lock, that is, the locking discs. The system comprises several different key profiles the form of which can be included within the border line of the basic profile of the used key blank. At least one of the key profiles fits functionally into a lock made for another key profile. The system may also include keys or key blanks with at least two different profiles arranged axially one after the other.

Abstract: A key construction for use with a rotary disc-tumbler lock wherein longitudinal restricting wards in a plurality of cross-sectional profiles are formable along the key shank and a warding tumbler with a similarly shaped key entry opening, which warding tumbler is used in a lock associated with the warded key thereby providing a plurality of correspondingly shaped warding key entry openings in the lock and key profile configurations which permits locks and keys to be grouped into different series with a key from one group of locks being restricted from entering the locks of another group even though the bitting codes are the same.

Abstract: A lock has a cylinder formed with a keyhole and rotatable in a housing. At least one tumbler is displaceable into the keyhole into engagement with a bit of a key which can position the segments of the tumbler so as to allow rotation of the cylinder in the housing. In addition the key is provided with a magnet that can coact with a magnetic rotor to rotate this magnet into a position that aligns a notch on the magnet or a control wheel controlled thereby with a retaining element. The housing is formed at its back end with a recess in which one end of the retaining element is urged by a weak spring. Only when the notches on the rotors are aligned with tabs on the retaining element can this element be displaced out of the recess in the housing and allow rotation of the cylinder relative to the housing.

Abstract: In a system without longitudinally slidable inserts, a main lever is actuated by a canted notch on a key to swivel in one direction to lock the switch and to swivel by gravity in the reverse direction. A blocking lever is actuated in one direction by the tip of the key and in the opposite direction by a spring.The main lever and the blocking lever are arranged to cooperate with each other whereby the main lever is blocked by the blocking lever when the switch is locked and the blocking lever is blocked by the main lever when the switch is unlocked.

Abstract: The rotatable plug of a cylinder lock has an axially extending outwardly open cavity paralleling a key slot and normally registering with an axially extending groove in the inner wall surface of the surrounding cylinder, the groove and the cavity being bridged by a locking bar with sloping flanks cammable radially inwardly, against the force of compression springs within the recess, upon rotation of the plug relative to the cylinder. Seated in the cavity are a plurality of axially spaced tumblers which are freely rotatable about pins transverse to the cylinder axis and have recesses alignable, in a predetermined operating position, with respective projections on the locking bar to enable the inward camming of the latter; each tumbler carries a pair of permanent magnets confronting a thin partition between the cavity and the key slot.