Matches 1 - 50 out of 59 1 2 >


Match Document Document Title
US20140250960 REKEYABLE LOCK  
A rekeyable lock includes a lock cylinder, a plug, a pin assembly and a stopper, the lock cylinder comprises a plug hole, a plurality of upper pin holes and a lower-pin-replacing hole, the plug is...
US20130312468 SINGLE KEY, INTERCHANGEABLE CYLINDER LOCK  
A re-keyable lock provides a cylinder that may be removed from the cylinder housing when the cylinder is in the unlocked state allowing the lock to be re-keyed with a standard key. A blocking...
US20140150506 Pick-Resistant Lock Cylinder Using Torque Resistance  
A torque augmentor operatively associated with the cylinder assembly and the plug assembly of a pin tumbler lock cylinder increases the threshold torque required to rotate the plug assembly in the...
US20120266640 Lock With Pin Tumblers and Lever Tumblers  
A lock is disclosed having a set of pin tumblers in the lock cylinder in addition to the lever tumblers to prevent rotation of the cylinder without a key to release the driver pins that engage the...
US20130091911 CYLINDER LOCK ASSEMBLY WITH NON-ROTATING ELEMENTS  
A cylinder lock assembly including a plug rotatable in a cylinder lock body and including a plurality of chambers, each of the chambers having a chamber depth axis, and a plurality of plug locking...
US20110214462 Anti-Bump Top Pin for Pin Tumbler Locks  
A pin tumbler lock is key bump resistant by applying a top pin that has an at least partially walled tubular hollow structure. The hollow top pin is reduced in weight compared to a standard top...
US20090107195 Accessory for existing locks to prevent bump lock picking  
A modified pin to be used in an existing tumbler and pin lock to prevent the lock from unauthorized operation by a lock-picking technique known as “bumping.” A modified replacement pin is provided...
US20140223977 BURGLARPROOF LOCK CORE ASSEMBLY  
A burglarproof lock core assembly has a lock shell, a lock core and a pin device. The lock shell has a mounting recess, multiple upper pin chambers and an engaging slot. The lock core is mounted...
US20080202181 ANTI-TAMPERING ARRANGEMENTS FOR PIN TUMBLER CYLINDER LOCKS  
A pin tumbler cylinder lock includes a shell, a plug, and at least first and second tumbler pins and first and second driver pins. At least the first driver pin extends into a corresponding plug...
US20080110220 SECURITY DEVICE FOR LOCK CYLINDERS  
Security device for lock cylinders, which consist of a rotor (1) which rotates in the cavity of a stator (2), which locks use true keys (4) in which the combination for opening is by means of...
US20080202180 SHAPED TOP PIN FOR BUMP RESISTANT CYLINDER  
The present invention provides a pin and tumbler cylinder lock and a retrofitted cylinder lock which minimizes unauthorized openings of the lock by bumping. The cylinder lock utilizes specially...
US20090056396 ANTI-THEFT PIN TUMBLER LOCK  
An anti-theft pin tumbler lock includes a lock core and a lock body having a bore and at least one first bore. The lock core includes a keyway mounted therein, and one second bore formed therein...
US20070074553 Self-locking pin  
The present invention refers to a novelty in the distribution of locking pins in locks and other systems that employ locking pins and unblocking keys that prevent the rotation of the wrong key....
US20050050930 Door lock set and methods of assembling and disassembling the door lock set  
A door lock set including a cylinder lock unit which has a lock shell and a plug is disclosed. The lock shell has an axially extending protrusion which projects outwardly and radially from an...
US20080271507 BUMP RESISTANT PIN TUMBLER LOCK  
Methods and apparatus for improving bump resistance in pin tumbler locks include, in various embodiments, means provided within a tumbler passage for preventing or inhibiting the formation of a...
US20120180537 ANTI-TAMPERING ARRANGEMENTS FOR PIN TUMBLER CYLINDER LOCKS  
A pin tumbler cylinder lock includes a shell, a plug, and at least first and second tumbler pins and first and second driver pins. At least the first driver pin extends into a corresponding plug...
US20080127694 Pin Tumbler Lock  
A pin tumbler lock, operating between a locked position and a released position, comprising a first lock member having at least one first bore with a biasing device and a first pin deposing in the...
US20080276675 PROGRAMMABLE LOCK HAVING INCIDENTAL CHANGE CONTROL  
A key-operated cylinder lock for operating a bolt or a latch, that can be programmed for use with one of a plurality of user keys without disassembling the lock or replacing the tumblers, with...
US20100319422 LOCKING DEVICE AND KEY FOR A LOCKING DEVICE  
The invention is concered with a locking cylinder (1) and a matching key (2), wherein the locking cylinder comprises tumbler pins (6) with a head (7) and a tip. (8). The tip (8) engages in a...
US20070271976 Key operated pin tumbler locks and methodology  
Apparatus and associated methodology are provided for key operated pin tumbler locks, some of which may incorporate a removable core pin tumbler lock. A selected tumbler of a type commonly used in...
US20060010945 Programmable lock with temporary access key  
A programmable lock for unlatching a bolt or a latch, that can be programmed for use with one or a set of main user keys without disassembling the lock or replacing the tumblers. The lock can also...
US20080163657 LOCK CYLINDER WITH OFFSET PIN  
A lock cylinder that includes a housing and a plug. The housing includes a wall that defines a hollow portion and a pin portion that defines a first pin chamber that is configured to receive a...
US20070028658 Lock and key system with improved tumblers in the lock  
A lock and key system is disclosed including locks of the kind comprising a cylindrical key plug (203) with locking tumblers (205) having a body part (206a) and an integral key sensing part (206b)...
US20120304717 PROGRAMMABLE CYLINDER LOCK WHICH DOES NOT REQUIRE A SPECIAL CHANGE KEY  
A lock with a programming device, includes a stator, a rotor rotatably inserted therein, a keyhole, a longitudinal groove, a set of key followers and a set of locking pins which, under control of...
US20080314104 Lock cylinder structure  
A lock cylinder structure mainly comprises a cylinder shell, a plug and a pin group. The cylinder shell has a housing and the plug is rotatably positioned within the housing of the cylinder shell....
US20100212383 Bump-Resistant Pin Tumbler Lock  
A bump resistant pin-tumbler lock having a housing; a plug rotatably mounted within the housing and having a keyway; and a shear line defined between the interface between the plug and housing....
US20060096345 SAFETY CYLINDER ASSEMBLY FOR LOCK  
A lock includes a housing, a first cylinder positioned in the housing, and a second cylinder positioned in the housing and located in an inner side of the first cylinder. The housing includes two...
US20080314106 PROGRAMMABLE LOCK CYLINDER ASSEMBLY  
A programmable lock cylinder assembly comprising a lock housing and a cylinder plug mounted for rotation within the housing. A set of rack pins are positioned in the cylinder plug and moveable...
US20080314105 Pin tumbler key lock assembly  
A headed pin for use in pin tumbler locks is provided with a release diameter cylindrical body having an enlarged diameter axially short head at one end, the reduced diameter body being received...
US20080053174 Electronic Cylinder Lock Apparatus And Methods  
A cylinder lock device including: a body housing having a bore, with a direction of elongation defining an axial direction for the device; a rotatable cylindrical plug in the bore, the plug having...
US20110252846 LOCKING SYSTEM  
A locking system is set forth having a key and a lock cylinder. The lock cylinder has a cylinder core journalled in a housing and having a keyway for inserting the key. A plurality of tumblers...
US20110271724 LOCK CYLINDER ASSEMBLY  
A lock cylinder assembly comprises a cylinder body, a plug, a plurality of pin sets and a position block, wherein the plug comprising a keyhole is rotatable within the cylinder body between a...
US20050204790 Lock core structure  
This invention relates to a lock core structure that can be rapidly installed in locks and prevent parts thereof from being detached. The lock core structure mainly comprises a sleeve, a shaft,...
US20110226027 REKEYABLE LOCK CYLINDER  
A rekeyable lock cylinder which inserted a first matched key for unlock in a first direction and utilized a rekeying tool for rekeying includes a plurality of first rack components, a plurality of...
US20080307842 LOCK CYLINDER WITH LOCKING MEMBER  
A lock cylinder that includes a housing and a plug. The housing defines a cylindrical cavity, and an outer pin chamber in communication with the cavity. The plug is rotatable within the cavity,...
US20090031774 REKEYABLE LOCK CYLINDER  
A rekeyable lock cylinder includes a cylinder body with a longitudinal axis. A plug assembly is disposed in the cylinder body and is rotateable between a first position and a second position, the...
US20140298871 Lock Cylinder  
A lock cylinder includes a housing and first and second key plugs rotatably received in the housing about an axis. The first and second key plugs are axially spaced in the housing and each...
US20090173121 Bump Proof Locks  
A bump proof lock has stationary part and movable part in lockable sliding contact with each other. The stationary part has first passages and a driver pin slidably disposed in each first passage....
US20110011140 PROGRAMMABLE LOCK HAVING INCIDENTAL CHANGE CONTROL  
A key-operated cylinder lock for operating a bolt or a latch, that can be programmed for use with one of a plurality of user keys without disassembling the lock or replacing the tumblers, with...
US20080105017 CYLINDER LOCK IMPROVEMENT TO PREVENT OPENING BY A BUMP KEY  
A cylinder lock (10) includes a lock cylinder (12) having a central bore (14). A series of bores (16) extend orthogonally of the lock cylinder and open into the central bore. A barrel (18) fits...
US20140290317 LOCK CYLINDER CAPABLE OF CHANGING A KEY MEMBER  
A lock cylinder includes a cylinder housing with a upper pin hole set and a replacing opening, a cylinder body with a lower pin hole set, a upper locking pin set, a second locking pin set and a...
US20060027006 Key stop positioning system  
An improved cylinder lock and key combination is provided. The lock comprises a housing having a lock cylinder comprising a plurality of pin chambers each having a movable tumbler pin disposed...
US20130036782 PROGRAMMABLE CYLINDER LOCK HAVING A DEVICE FOR PROTECTION OF THE CODIFICATION, AND THE KEYS FOR THE OPERATION THEREOF  
A programmable cylinder lock includes a stator and a cylindrical rotor, mounted therein for rotation around its own axis, has a keyhole, and comprising inside the rotor key followers movable along...
US20100199733 PROGRAMMABLE LOCK WITH TEMPORARY ACCESS KEY  
A programmable lock for unlatching a bolt or a latch, that can be programmed for use with one or a set of main user keys without disassembling the lock or replacing the tumblers. The lock can also...
US20130319058 CYLINDER LOCK  
A locking mechanism is provided for a lock body and a rotatable key plug. The locking mechanism comprises pins having recesses, each of the pins adapted to be disposed in pin bores in the key plug...
US20130276490 CYLINDER LOCK  
A locking mechanism is provided for a lock body and a rotatable key plug. The locking mechanism comprises pins having recesses, each of the pins adapted to be disposed in pin bores in the key plug...
US20090113965 IMPROVED LOCKING APPARATUS  
A lock and a cooperating key combination is disclosed, the lock comprising a stator and a rotor with a keyway, the key comprising a penetrating portion for insertion in the keyway. The penetrating...
US20100199732 DEVICE AND METHOD FOR REMOVING A PIN STOPPER FROM A CHAMBER IN A LOCK HOUSING  
A pin remover device for removing a pin stopper from the upper end of its chamber in a lock housing. The pin stopper has a hole bored from the end of the pin stopper open to the outside of said...
US20130327102 LOCK ASSEMBLY WITH MOVABLE ELEMENT  
A lock assembly (10) including a plug (12) having a keyway (14) for inserting therein a key (16), the plug (12) arranged for movement in a bore (18) formed in a lock body (20) along a shear line...
US20120291505 PROGRAMMABLE CYLINDER LOCK HAVING A HIGH NUMBER OF COMBINATIONS  
A programmable cylinder lock includes a stator and a cylindrical rotor, mounted therein for rotation around its own axis and having a keyhole, a number of key followers movable along their own...

Matches 1 - 50 out of 59 1 2 >