Abstract: A lock assembly includes a plug with a keyway, primary pins aligned with the keyway, a sidebar, secondary pins adjacent the keyway, and at least one supplemental sidebar control element for controlling movement of the sidebar. A key blank has a key blade with a primary top edge to receive primary bittings for controlling the primary pins, a rib to receive secondary bittings for controlling the secondary pins, and at least one shuttle pin. The shuttle pin engages a multi-level ridge within the keyway to move the shuttle pin from a retracted position to an extended position in which an end of the shuttle pin actuates the supplemental sidebar control element.

Abstract: The present invention relates to a changeable combined mechanical key, belonging to the technical field of key structures of encryption locks. The changeable combined mechanical key includes a bracket detachably connected to an end of a key handle, and a protective cover detachably connected to the end of the key handle and a key-shaped component. The present invention achieves anti-theft and duplication-preventing purposes for a key, and has unique advantages in many important fields such as safety boxes, important military places, banks, household intelligent anti-theft locks, and any other fields that require secrecy security. Unlike an electronic key that is easy to cause a problem due to an electronic circuit device and software and so on, the present invention, which is irreplaceable and has changed a machining process of a traditional mechanical key, saves energy and reduces consumption, and has a broad application prospect.

Abstract: A key and lock are provided. The key is provided with a blade having a longitudinal axis. The blade is provided with a channel extending along at least a portion of the blade and along the longitudinal axis. One or more section members is disposed within the channel and coupled to the blade. The section member is capable of movement relative to the blade in the channel. A lock having a keyway and an associated tortuous path to receive the section members as the blade is inserted in the keyway is also provided.

Abstract: The present invention relates to a lock and a key for the same, and multiple modular lock core units are mounted in the lock. Multiple lock bead units having specific standard are mounted in each lock core unit. Each lock bead unit is detachable and is able to rearrange the permutations of the lock bead units. The key includes a handle, a core bar and multiple unlocking blocks. The core bar is connected with the handle. The unlocking blocks are detachable, are mounted around the core bar and have multiple lock teeth sequentially formed around the inner peripheries of the unlocking blocks. A user can adjust the permutations of the key teeth of the key to unlock the lock that has different permutations of the lock bead units, also can change the permutations of the lock core units to get the same effects.

Abstract: A combination of a lock and a key includes a cylinder having a housing, multiple index rings and multiple cores. The housing has slot laterally defined through the wall thereof the housing. At least one first post and at least one second post respectively extend radially from the first end and the second end of the housing. The index rings are located in the housing and each have at least one column with a first mark. At least one cap restricts the index rings to the housing. Each index ring has one core received therein. The key has a handle, a shaft and multiple unlocking members mounted to the shaft. Each unlocking members has a second mark and a top portion. The index rings are removed and re-arranged by removing the cap via the slot so as to obtain different combinations by the first and second marks.

Abstract: A lock system, lock and key is provided. The lock includes additional cutouts on the face plate (123), requiring the insertion of a corresponding unblocking member on the keyblade (144). The unblocking portion engages an engagement portion (162) to allow release of a corresponding sidebar (126), thereby allowing rotation of the lock. The engagement portion (162) additionally must project to the correct length to allow the engagement portion (162) to travel the correct distance to release the sidebar (126).

Abstract: The present invention is directed to key assemblies and their mating locks, and more particularly, to keys with mutually compressible, actuating elements capable of being continuously positioned axially within apertures in a key blade.

Abstract: A key for opening multiple axial pin locks has a base member with an indexing element and a number of lock pins, configured to match the keyways of the locks. The key has a microprocessor with access to information on the pin configuration for each lock to be opened, and the lock pins are selectively positioned along the base member to match the configuration of a key for a particular lock in response to the user entering an identification code for that lock. The lock pins can slidably engage recessed tracks in the base member, which serve to direct the lock pins parallel to an axis of the base member. A pin latching mechanism can be provided to secure the lock pins in the desired position.

Abstract: A key device for use with more than one lock, the key device including a shaft portion, and at least one movable key combination element retained within the shaft portion and including first and second portions adjacent one another, the first portion of the at least one movable key combination element being located along on the shaft portion and the second portion of the at least one movable key combination element being located offset to the first portion.

Abstract: The present invention is directed to key assemblies and their mating locks, and more particularly, to keys with mutually compressible, actuating elements capable of being continuously positioned axially within apertures in a key blade.

Abstract: The invention relates to information carriers operating with control devices, more specifically to methods for identifying and inputting code information which makes it possible to define the access right to different objects or to code information. The aim of said invention is to increase the capacity of code information inputted with the aid of an identifier by developing an updated identification method including techniques which increase the information state of each wafer of the identifier or the identifier in the entirety thereof. The inventive method consists in dialling a code in the identifier with the aid of selective rotation of the elements provided with code marks, periodically modifying said code by rotating a coding wafer at an angle in relation to the normal position thereof in one or another direction and in displacing the wafer to the other orifices which are arranged above or under a central orifice at a distance less than the diameter of said orifices.

Abstract: A lock and a key are provided wherein the key is used in conjunction with the lock. The key has a stop bit and a series of coding bits along its shank. The stop bit and each coding bit have a leading edge and a trailing edge to provide coding of the key and to form one side of a groove. The lock has a housing having a key-actuated cogwheel assembly. The cogwheels are registered with a keyhole and are spaced for engagement by the coding bits of the key. A driven cogwheel assembly has a series of cogwheels that mesh with a corresponding key-actuated cogwheel. A lock bolt is projected and retracted between two positions by a lock bolt actuating mechanism responding to position of the stop bit and coding bits.

Abstract: A universal lock and key assembly in which the lock is re-keyable and the key is also changeable. The key has an elongated left side member, an elongated right side member, and an elongated central member. A plurality of key teeth are captured between the shank portions of the left and right side members. The key teeth are interchangeable so that any desired sequence can be arranged to give a predetermined profile to the key. The universal lock has a combination top pin housing and tubular sleeve assembly having a top pin housing and a tubular sleeve portion. A bottom pin cylinder is removably received in the tubular sleeve portion and its bottom pins can be removed and replaced in an order that mates with the key teeth of the key assembly. The structure of the system allows an individual to change both the configuration of the key and also the mating structure within the lock so that it will be operable.

Abstract: A cylinder lock having a changeable key combination, the cylinder lock including a cylinder housing defining a bore, a plug arranged in the bore and defining a keyway and at least one plug pin disposed in the plug along at least one plug pin axis and communicating with the keyway, the at least one plug pin having a key engagement end face communicating with the keyway, the key engagement end face being configured such that rotation of the plug pin about the plug pin axis effects a change in the key combination of the cylinder lock and wherein the cylindrical housing defines at least one access opening which permits access to the at least one plug pin for selectable rotational positioning thereof for changing the key combination of the cylinder lock by means of rotation of the at least one plug pin about the at least one plug pin axis. Various keys suitable for use with the lock are also described and claimed.

Abstract: A magnetically coded lock assembly has a lock having a housing formed with a key slot, a latch element movable in the housing between a locked and an unlocked position, and at least one magnet wheel in the housing rotatable adjacent the slot about a wheel axis. This magnet wheel is provided with a magnet, operatively engageable with the latch element, and displaceable between a blocking position preventing the latch element from moving from the locked to the unlocked position and a freeing position not blocking such movement of the latch element. A key has a body fittable in the slot and formed with at least one seat and a respective magnet-carrying disk rotatable in the seat about a disk axis through a plurality of angularly offset positions. Each disk is closely juxtaposed with a respective one of the wheels when the key body is fitted in the slot.

Abstract: A security combination key is provided, which consists of a hollow housing having a removable cover plate. An elongated guide member having an open track therein and a ward groove on a side thereof, extends from one side of the hollow housing. A plurality of blades having serrations extend in parallel relationships from within the hollow housing into the track of the guide member with the serrations exposed in the track. An apparatus is for sliding the blades in the track of the guide member, to form various combinations with the serrations to match up with pin tumblers in specific locks. A device is for locking the blades in a stationary position in the track of the guide member. The guide member having the ward groove can be inserted into a keyway having a compatible set of ward ridges in a cylinder of the lock, allowing the serrations of the blades to properly position the pin tumblers to permit operation of the lock.

Abstract: A lock system has lock cylinders (5) in which the rotor (9) is lodged as usual in the cylinder housing, (11) as well as lock cylinders (6) in which the rotor (10) is rotated through 180.degree. about its longitudinal axis relative to the other rotors (9). The security keys for the lock system are flat keys and not turning keys and, in the event that these are priority keys, have two completely independent key codes. The invention also provides a further possibility for increasing the number of variations of the lock and thus for increasing its security.

Abstract: A universal lock and key assembly in which the lock is re-keyable and the key is also changeable. The key has a shank portion having a longitudinally extending tooth slot in its top surface. A plurality of teeth have their bottom ends inserted into the tooth slot in any desired sequence to give a predetermined profile to the teeth of the key. The bottom pin cylinder of the lock has mating bottom pins for each of the respective teeth. These are then arranged in a coordinated sequence in the bottom pin cylinder of the lock. The structure of the system allows an individual to change both the configuration of the key and also the mating structure within the lock so it will be operable.

Abstract: A cylindrical key operated variable code lock provides a shell having a cylindrical inner surface and an orifice for accepting a key. The key may be generally cylindrical in shape carrying a number of lugs thereon that are rotationally variable. The drum is normally rotationally fixed relative to the shell by a plurality of locking elements. In response to the insertion of a key having a predetermined code each of the locking elements, conversely, allow the rotation of the drum relative to the shell. The locking elements may be reconfigured in response to a predetermined varying of the key code. The reconfiguration may particularly entail the turning of the unlocked drum to a predetermined position and removing the key while the locking elements are in a state allowing recoding.

Abstract: A code lock includes an intermediate bead seat, upper and lower bead seats, all of which are provided with tumbler bead holes receiving tumbler beads. The upper and lower bead seats are slidable relative to the intermediate bead seat between a normal position in which the bead holes of the upper and lower bead seats are aligned with first bead holes of the intermediate bead seat and a resetting position in which the bead holes thereof are aligned with second bead holes of the intermediate bead seat. The combination of the tumbler beads can be changed by using a code key which selectively transfers some tumbler beads from the first to the second bead holes.

Abstract: A key device which comprises a base (11) having seven substantially circular apertures (12,13,14,15, 16,17,18) therein. Each aperture (12-18) is adapted to receive a respective element (12a-18a). The base (11) and the elements (12a-18a) are made from a non-electrically conductive material. Each of the elements (12a-18a) has seven predetermined locations on sites (21-27) adapted for the receipt of a metal pin. Thus the electrical characteristic of each site (21-27) may be altered by the presence or absence of the metal pin. A key device can be assembled by a user having a particular combination of pins present. The combination of the pins present together with the orientation of the key device when presented to a detector means, which is adapted and programmed to determine the presence or absence of a pin at each site, may be used to actuate, for example, a lock.

Abstract: A key for a lock of the plunger operated type in which an elongated housing has an internal axially movable plunger which releases locking elements when moved toward the open end of the housing, said key having a body with elongated fingers extending forwardly from the housing and an elongated mandrel disposed between the fingers. A finger depth limiter or spacer is disposed at the rear end of the fingers and protrudes forwardly from the foremost face of the key housing for abutting a portion of the lock to limit the distance the fingers can extend into the lock. In one embodiment of the invention an axially adjustable cap is mounted on the forward end of the housing to allow adjustment of the amount the spacer projects from the housing.In one embodiment of the invention internal structure is provided that allows the fingers to shift forwardly a predetermined distance if the forward end of the housing is removed by grinding in an effort to modify the key for use in locks with which it is not intended for use.

Abstract: A combination key includes a hollow head, a hollow stem connected to the head and a plurality of teeth mounted on racks longitudinally movable in the head and stem. The racks are in meshed engagement with toothed control wheels which are mounted in the head and emerge partially to the outside. The control wheels are located in the head next adjacent the stem. The length of the head is at least equal to the length of the stem so that the racks can be accommodated in the head when the teeth are in a position of maximum retraction.

Abstract: A key for a lock-key system, particularly for a hierarchal lock system, is provided which has an invariable basic profile and a variation or system profile in which the invariable basic profile is allocated to the region of the key facing carrying the classification notches and has at least two profiled formations which cross the centerline of the key. The variation or system profile is allocated to the key region adjacent to the key spine. Variations are provided in the system profile by longitudinal incisions having a rectangular cross-section.

Abstract: A key assembly which can be assembled to a specific code by snapping together the different parts of the key assembly. The key assembly includes a tubular, cylindrical barrel which has a plurality of spaced apart elongated grooves formed in the exterior surface of the barrel. A hole connects with each groove. A pin is to be mountable within each hole. An insert selected from a grouping of a plurality of different lengths of inserts is to be mounted within each groove with the pin for that groove being located within an appropriate opening formed within the insert thereby longitudinally fixing in position the insert with respect to the groove. A collar is then exteriorly mounted on the barrel about the inserts and fixed in position thereby preventing disengagement of the inserts from their respective grooves. A handle is mounted on the barrel.

Abstract: A cycle lock having at least one plurality of disc-like tumblers loosely mounted on a shaft parallel with the axis of rotation of the key rotated lock cylinder. Each tumbler has a two spaced lobes which, in the neutral state of the tumbler, contact the arcuate surface of the cylinder but one of the lobes may drop into the key slot in the cylinder if not occupied by a high segment on the key. A key is initially inserted into the lock at a special location at which all tumblers are in their neutral state, and the rotation of the key to its normal position of insertion and removal will set the lock tumblers according to the key coding. In one embodiment particularly useful for hotels, etc., two sets of tumblers are employed: one set for transient or guest keys, a second set for service personnel keys, and a third key, a grand master key, operates the second tumbler set and can reset both sets of tumblers for accepting new keys with different codings thereon.

Abstract: For producing security keys, in a first method step bore patterns differing from one another are produced, each bore pattern having the same number of bore locations. The corresponding bores are standard bores, which however may vary in terms of their bore depth. In a second method step, a prespecified number of selected bore locations in each bore pattern is varied in terms of their positions. In a third method step, each selected bore locations is additionally varied in terms of a prespecified number of bore shapes differing from one another.

Abstract: A combination key permitting the opening of various different locks with a single key. The combination key has a hollow stem with longitudinally extending slots in which a plurality of teeth can be moved in longitudinal direction. A control mechanism arranged within the key facilitates the movement of the teeth, so that the relative positions of the teeth can be adjusted in accordance with the respective lock to be opened.

Abstract: The present invention relates to a lock having a key provided with variable key information elements which are adapted to be scanned during rotation of the key around an axis of the lock. The key preferably includes ten (10) cam plates fixedly joined together in pairs for rotation and mounted in pairs on coaxial hollow shafts. Each shaft is driven by a handwheel in an angularly variable manner. Each cam plate has five (5) different radial steps, so that each pair of cam plates correspondingly has twenty-five (25) different possible combinations of angular positions, each of which can be identified by a letter of the alphabet on the respective handwheel. The key combination is legible through a display window. The lock and its key which are of a relatively simple design, allow the key combination to be easily set and readily recalled.

Abstract: A key for a lock of the plunger operated type in which an elongated housing has an internal axially movable plunger which releases locking elements when moved toward the open end of the housing, said key having a body with elongated fingers forwardly from the housing and an elongated mandrel disposed between the fingers. A spacer is disposed at the rear end of the fingers and protrudes forwardly from the foremost face of the key housing for abutting a portion of the lock to limit the distance the fingers can extend into the lock. The housing has a head portion which is axially adjustable in relation to the spacer to vary the amount the spacer projects forwardly from the housing.In one embodiment of the invention internal structure is provided that allows the fingers to shift forwardly a predetermined distance if the forward end of the housing is removed by grinding in an effort to modify the key for use in locks with which it is not intended for use.

Abstract: The invention relates to a cylinder lock with a key for mechanical and/or electromechanical locking or electrical signal emission with codeable locking means and devices which influence or generate electrical currents. The device includes a cylinder housing with a cylinder core carrying the locking bit and a continuous keyway with conduits discharging therein for core platelets (wafers), whereby the key and locking conduits are provided with mutually cooperating and codeable mechanical devices and devices which influence or generate and electrical currents for mechanical and/or electromechanical locking, or for other given signal triggering. The device is characterized in that the mechanical devices for actuation or for triggering the mechanical locking each form a corresponding structural unit for coding within the keyway and in the key, together with the electrical/electronic devices for the electromechanical locking or signal triggering.

Abstract: A key operated lock having a handle member slidably and rotatably operating within a rose member secured in a door, the rose having a bore therethrough in which a lock cylinder is rotatably mounted but restrained against axial displacement and has an axially displaceable and rotatably mounted latch actuator operably engageable with the handle by a key insertable into the handle transversely to the rotational axis. The lock cylinder has fixed wards extending toward the handle and key member which in the proper position of the key are in alignment with holes in the key which permit interlocking of the handle via the key with the lock cylinder for simultaneous rotation.

Abstract: A cylindrical type lock has a rotatable cylinder within a lock body wherein the cylinder has a stacked array of a plurality of nested and alternating tumbler wheels and spacer discs mounted in a subassembly with the cylinder to the lock body, the spacer discs are held stationary by tab projections which extend radially outwardly into a longitudinal groove in the cylinder into which they slip fit on assembly along with the tumbler wheels in stacked array into the cylinder, the wheels and discs being formed with identical annular projections on one side and mating annular recesses on opposite sides so that the wheels and discs nest in interfitting relation in the stacked array within the cylinder to be operated by an associated key which has a plurality of spaced segmented disc-like coded webs and blank webs which are adapted to align with the tumbler wheels and spacer discs respectively when the key is inserted into the lock and rotated.

Abstract: A lock system has a master-only lock which can be opened only by a master key and a subordinate lock which can be opened by a subordinate key and a master key. The master-key slot of the master-only lock is formed with a plurality of parallel longitudinally extending and inwardly projecting guide ridges and a plurality of parallel longitudinally extending and inwardly open variable recesses interleaved with and parallel to the guide ridges. The master key is complementarily shaped. The subordinate lock has guide ridges and variable recesses identical to that of the master-only lock, and in addition is formed with further variable recesses in which fit corresponding further ridges on the subordinate key. Thus, the subordinate key is of larger cross-sectional area than the master key so that it cannot fit into the master lock.

Abstract: A key assembly for operating a coded security system is structured with a plurality of information carrier members mounted on a longitudinal member of the key assembly and angularly arranged thereon to define a code for a security system operated by the key. Alteration of the code is effected by changing the relative orientation of the information carrier members by threadedly loosening the longitudinal member upon which the carrier members are held, readjusting the position of the carrier members and tightening the longitudinal member to hold the information carrier members fixed in a desired relative position defining the code.

Abstract: A lock system has a master-only lock which can be opened only by a master key and a subordinate lock which can be opened by a subordinate key and a master key. The master-key slot of the master-only lock is formed with a plurality of parallel longitudinally extending and inwardly projecting guide ridges and a plurality of parallel longitudinally extending and inwardly open variable recesses interleaved with and parallel to the guide ridges. The master key is complementarily shaped. The subordinate lock has guide ridges and variable recesses identical to that of the master-only lock, and in addition is formed with further variable recesses in which fit corresponding further ridges on the subordinate key. Thus, the subordinate key is of larger cross-sectional area than the master key so that it cannot fit into the master lock.

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 and a lock in a lock device having variable bit and ward patterns, respectively. The key has two pieces of bit members, one member of which is slidably fitted in a groove defined in the other member, while the other is stationary. The lock has ward members cooperative to those of the key, one of the ward members being movable, and the other being stationary. Thus, when the key is inserted into the lock and turned to its angularly displaceable end, and the position of the movable bit member of the key is varied, then the cooperative movable ward member in the lock may be moved thereby accordingly. The both movable members are then rigidly fixed in desired position. Thus, the lock can no longer be opened by a duplicate key or a master key. Alternatively, the two bit and ward members in a key and a lock may be so designed as to be movable, respectively.

Abstract: A pick for tubular cylindrical locks which includes a central substantially cylindrical member which has a plurality of grooves thereon, each groove to accommodate an elongated pin. The pins are capable of axial movement with respect to the cylindrical member against the action of a frictional brake in the form of rubber O-ring assembly. The very tip of the pins connect with a head which is adapted to be placed about the rotatable cylinder portion of a tubular lock. The head includes a series of axial slots and upon being moved axially into the cylindrical member, the head slightly deflects and frictionally secures to the cylinder portion of the lock. The head is moved axially by a fastener which connects between the rearwardmost end of the first member and the head.

Abstract: A device for opening locks with magnetically actuated tumblers or pins is provided with a housing of non-magnetizable composition and a plurality of interlocking gear wheels, pivotably retained in the housing, and also constructed from materials not susceptible to permanent magnetization. The gear wheels are pierced by a plurality of orifices across their thickness and cylindrical permanent magnets are inset into each orifice with a substantially random distribution of their North and South poles with respect to the faces of the wheels. Means are provided to rotate the wheels simultaneously around their pivot axes, thereby generating a changing, random distribution of magnetic fields arising from the interaction of the inset permanent magnets.

Abstract: A cylindrically shaped lock structure adapted to receive an associated rod-shaped key is disclosed. The lock comprises a rotor case having an annular rotor member disposed therein. The rotor member contains a plurality of slidable pin members radially extending into a central key opening in the rotor member. The key opening is arranged and configured to receive the associated rod key such that when the rod key is inserted, the pin members retract into the rotor case and selectively render the rotor movable therein. A latch actuating system is coupled to the rotor member via an arm member whereby rotation of the rotor member causes the actuating system to render a latch movable from its initially closed position to an open position.

Abstract: A barrel key apparatus wherein there is a handle section attached to a cylindrically shaped tubular section, within the cylindrically shaped tubular section there is located a plurality of spaced apart elongated grooves which are of the same length and extend from the outer free end of the tubular section. Within each of the grooves there may be selectively located one of a group of different length push pins. At the inner end of each groove is located an opening extending to the interior of the tubular section. The push pin includes an attaching means comprising a plurality of spaced apart annular ridges successively connected together along a single longitudinal axis. The attaching means is to be inserted within the opening at the end of the groove with the under surface configuration of the push pin matingly cooperating within the groove and the outer surface of the push pin cooperating with the outer surface of the tubular section to form a flush, smoothly contoured surface.

Abstract: A lock and key assembly wherein the key is adapted to co-operate with the lock is characterized in that the key has adjustable formations thereon, and the lock has complementarily adjustable tumblers so as to afford a variable combination of the lock and key assembly.

Abstract: A key for a magnetic lock is provided with a plurality of dials, which are manually rotatable to position magnet devices carried thereby in desired combination setting positions determined by visual observation of dial carried indicia.

Abstract: A lock mechanism comprises a plug slidably to a home position into a cavity of a block which plug has a recess for receiving side-by-side plates.Said block has a receptacle for receiving a similar set of spring biased plates. The front base of said plug a keyway with rectangular cross section communicates with said recess at a position close to the bottom thereof. A key is also provided for said mechanism which is made up of as many bars as are the plates.The plates in said recess have a bevelled corner. The bevel plane of the plates and of the key bars being the same.When the key is inserted home into said plug the bevelled point of each bar of the key engages the bevelled corner of a corresponding plate in the recess and lifts it to come flush with its upper edge with said recess aperture whereby the mechanism is unlocked.When the key is withdrawn from said slot the plates in said receptacle are moved by the related springs to enter the plug recess and block the mechanism thereby.