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7621163 |
High security key blade and key
A high security key blade and key for use with a lock having a cylindrical shell, a key plug which is rotatably mounted in the shell, a longitudinal key slope in the key plug, and at least one...
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7571629 |
Positional multiplex keyway system
A method and apparatus for extending an existing simplex or multiplex lock-and-key system that includes a family of first keys each having a first profile and of a corresponding plurality of first...
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7552608 |
Lock, key blank, and key of a hierarchical lock system
A lock system includes keys, key blanks, keyways, and lock cylinders, and the keys or key blanks have opposite sides formed with grooves for cooperating with a conforming keyway. More particularly,...
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7484392 |
Cylinder lock and key
A cylinder lock provided with a thick key including an elongated base having two surfaces. A serrated wall extends from one surface of the base. A key groove is formed by the serrated wall. A rib...
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7421869 |
Cylinder lock device
Tumbler pins 2 are movably housed in a plug 1 . A locked/unlocked state is determined by the turning position on the moving direction center axes of the tumbler pins 2 . An unlocking key 4 to...
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7412860 |
Key blank and key
A key blank or key has a rectangular parallel metal shaped blade which has side edges formed with grooves for cooperating with a complementary shaped keyway; the sides of the blank having a portion...
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7392676 |
Key blank with projection
A key blank for a cylinder lock comprising a bow 308 , a blade longitudinally extending from the bow to a tip, and having a longitudinally extending upper edge 306 to be cut with coded bitting...
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7377146 |
Cylinder lock with an axially moving sidebar
A cylinder lock plug that utilizes an axially moving sidebar. The sidebar is displaced axially by a key positioning mechanism on the blade of a uniquely configured key. Also on the key are unique...
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7370502 |
High security lock and key blade combination
A high security cylinder lock ( 1 ) and key ( 2 ) combination comprising a cylindrical shell ( 140 ), a key plug ( 130 ) which is rotatably mounted in the shell ( 140 ), a longitudinal key slot (...
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7337639 |
Method of making a key for a pin tumbler lock
An exemplary method of making a key is provided. A bitted surface is formed in a key blade of a key blank. A groove is formed in a first side of the key blade. At least one receptacle is formed in...
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7240525 |
Master-keyed cylinder comprising tumblers and corresponding master key
Master-keyed pin tumbler lock and relative master-key, where each pin has an inner window with an outer protuberance, which a spring acts upon and an inner projection, which the key acts upon,...
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7207200 |
Key with compound actuator ramps in recessed longitudinal channel
A key blank and key for mating with a core having a plurality of cutouts penetrating from the core surface to the keyway, and a plurality of activator inserts and filler inserts, such that the...
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7181941 |
Lock system with improved auxiliary pin tumbler stack
In a pin tumbler-type cylinder lock having an auxiliary tumbler stack, the bottom pin of the auxiliary tumbler stack has a recessed underside for receiving a projection on the key to form a detent....
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7174757 |
Lock cylinder and key set
Disclosed is a lock cylinder and key set, which includes a lock cylinder, which has a keyway with two keyholes separated by a partition, and a key, which has two blades insertable into the two...
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7159424 |
Lock and key system with extra code combinations
A high security lock and key system with an increased number of code combinations is disclosed. The system is of the kind where the blade of the key has a wave-like guiding surface ( 104 ) at the...
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7100409 |
Burglarproof lock core structure
The present invention provides a burglarproof lock core structure which forms a curved passage between a key slot of a plug and a lower pin chamber, such that at least a bending concave surface...
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7040126 |
Discriminating mechanism for a pin tumbler lock
A pin tumbler lock is provided with one or more additional chambers for housing a secondary locking member for engagement with a portion of a key. The invention also provides a lock system...
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6986272 |
Ignition lock for a motor vehicle
The invention relates to an ignition lock ( 1 ), in particular for a driving authorization system in a motor vehicle that interacts for authentication purposes with an electronic key or the like...
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6957556 |
Disk tumbler lock and key, improved means and methods of manufacturing for
An improved disk-tumbler lock and key for use with a gun-lock device includes a key specifically adapted to be ring-mounted so that it may be worn by and is thus available for the user at all...
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6945082 |
Key blank, key and master keying system
A key blank, key and master keying system for a twisting tumbler sidebar lock of the type where the sidebar is blocked or unblocked by a selectively positioned longitudinally extending slider, has...
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6925844 |
Lock having a helical keyway and accompanying key and methods therefor
The present application advantageously provides at least one keyway in a lock core that poses tremendous difficulty for a lock breaker by not allowing the lock breaker to see all of the pin...
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6912881 |
Security reversible key and locking system
The security reversible key with an assigned cylinder (Z) has a blocking groove (BN) with a coded blocking depth (B 1 , B 2 , B 3 ), which runs parallel to the axis of the key (x) from the tip of...
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6851292 |
Lock-key system
The invention relates to a lock-key system comprising a flat key ( 1 ), which is insertable into the keyway of a cylinder core ( 3 ), wherein grooves ( 4 ) and ribs ( 5 ) inside the keyway are...
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6842742 |
System for providing early warning preemptive postal equipment replacement
An improved system for providing early warning preemptive postal equipment replacement. Selected performance parameters the postal equipment are monitored and compared against predetermined...
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6823702 |
Cylinder lock-key combination
A cylinder lock-key combination including a cylinder housing, a key and a plug which has a circular-cylindrical barrel surface and which is rotatable in an opening in the housing. The barrel...
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6799447 |
Cylinder lock-key-combination
A cylinder lock includes a turnable lock cylinder located inside a lock body and a set of code locking discs located inside the lock cylinder. Each locking disc has a key opening and is turnable in...
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6758074 |
High-security round key and lock therefor
A key has a blade formed with a part-cylindrical face and with a pair of relatively shallow, outwardly open, and generally parallel but spaced grooves formed in the face extending generally...
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6698264 |
Core assembly for a lock
A core assembly for a lock includes a core, a sleeve, and a housing. The core has a keyhole longitudinally defined therein. An elongated slot is defined beside and communicated with the keyhole....
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6681609 |
Moveable element key and key handle and lock
A key is provided with an actuator. The key also has operation structure and interaction structure. When the key is inserted into a lock, a force is applied to the operation structure and the...
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6666057 |
Lock with a fixable key
A lock with a fixable key includes a shell, an upper half core, a lower half core, an elastic member and a fixable key. The upper and the lower half core contained in the shell respectively have a...
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6615628 |
Picklock-proof key slot for a lock device and a key thereof
A picklock-proof key slot for a lock device and a key thereof, which comprises a rotary cylinder and a lock casing, between which plural upper tumblers and lower tumblers are furnished; the center...
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6584819 |
Lock with two layers of lock mechanism
A lock with two layers of lock mechanism, which comprises a body casing, an upper lock body, a lower lock body, a connection plate and a key; the chamber of the body casing is used for mounting the...
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6532781 |
Built-in safety device and key for a safety lock
The invention relates to a built-in safety device comprising a housing ( 3 ) and a rotor ( 4 ) mounted therein. Tumblers ( 8 ) are mounted in the housing ( 3 ) and in the rotor ( 4 ). The maximal...
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6526791 |
High security cylinder lock and key
A cylinder lock includes a shell and a plug inside the shell. A locking pin, a sensor pin and a flexible coupling are mounted within the plug. The sensor pin moves the flexible coupling and the...
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6519989 |
Lever lock unit
A lever lock unit includes a housing, a dogging element adapted to actuate a lock bolt, a plurality of lever tumblers that are actuable via the dogging element and movable relative thereto, and a...
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6494068 |
Lock core assembly
A lock core assembly. The assembly includes an external cylinder, an inner cylinder rotatably fitted in the external cylinder, alignment elements provided in the inner cylinder, at least a limiting...
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6490898 |
Cylinder lock
A cylinder lock comprises a cylinder ( 10 ) having a series of locking tumblers ( 16 ) which are rotatably mounted around respective axes. The introduction of the key causes rotation of each...
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6481255 |
High security side bar lock
A side bar type cylinder lock includes a locking segment which is movable relative to the side bar and lock shell only in response to insertion of a key blade having a uniquely configured and...
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6477876 |
Lock construction
A lock construction that minimizes the friction coefficient between the slide pin and the slide pin hole through the design of an arc-shaped indentation formed on each interior wall of the slide...
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6427506 |
Flat-key lock
A lock has a flat key having a flat blade extending along a key axis and having an axially extending edge formed to each side of a central axially extending key plane with a pair of axially...
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6397649 |
Keyhole barrier system and method
A keyhole barrier system for use with tumbler locks containing a keyway and a plurality of tumblers. The system contains a keyhole block having both retention and signaling portions. The retention...
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6378345 |
Soft key
A soft key includes a main body, a shank casing, and a shank. The main body includes a compartment defined by a pair of wall tracks. The shank casing is mounted in the main body and movable along...
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6374654 |
Locking arrangement comprising a lock cylinder and an associated key
Locking arrangement having a lock cylinder with an associated key ( 1 ), in particular a flat turning key, wherein a core ( 2 ) of the lock cylinder has a keyway ( 3 ) which is open in the...
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6308543 |
Key plate and method for manufacturing the same
A key plate includes a key plate body that extends longitudinally and has a grip portion and a keyhole insertion portion connected to the grip portion. The keyhole insertion portion includes a flat...
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6301942 |
Accessories for a modular removable core cylinder assembly
A removable core cylinder assembly utilizes a plurality of modular parts to create a key-removable interchangeable core which will fit all existing interchangeable core locks of this kind. The...
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6257033 |
Cylinder lock with rotatable pins
A cylinder lock has a plug deployed within a bore in a cylinder housing. The plug defines a keyway which communicates with a number of pin channels. Disposed within the channels are a number of...
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6173595 |
Lock picking apparatus
The method and apparatus for picking a lock which utilizes a single blade or pair of elongated thin, rigid, interchangeable blades which are to be inserted within the keyway of the lock. Each of...
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6134929 |
Cylinder lock and key combination with a guiding profile ridge in the lock
A cylinder lock and key combination, wherein the lock comprises a side profile ridge (60) disposed in the key slot (53) and having a relatively shallow recess (61), in which a projection (55) on a...
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6109081 |
Key and cylinder lock system
A dual cam, reversible key includes first and second patterns of notches in first and second edges of the shank of the key on a common side of the key shank of the key, providing a dual cam key....
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6105404 |
Squiggle keys and cylinder locks for squiggle keys
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...
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