Matches 1 - 50 out of 72 1 2 >


Match Document Document Title
8091392 High security lock  
A high security lock includes a lock bolt movable between extended and retracted positions, a bolt retraction gear coupled to the lock bolt, and a manually-driven gear train. When a controller...
8047032 Combination lock with two dial plates  
A combination lock includes an outer case with an inner case received therein and the outer case has a chamber which communicates with a passage in which a latch is received. A spring is mounted to...
7975517 Multistage lock apparatus  
A multistage lock apparatus has a base, a disk holder, two selecting devices, two disk sets and at least one interfering element. The base has a mounting panel and a central tube. The disk holder...
7934405 Combination padlock  
A combination lock includes a lock body, a shackle axially moveable between a retracted position and an extended position, a locking mechanism, and a dial secured to the front side of the lock...
7458239 Combination-changeable complex lock  
A combination-changeable complex lock includes a movable plate, a combination lock, and a sliding member. The combination lock is composed of two notched rotating discs, two gearwheels, and a...
7263865 High security lock mechanism  
A self-powered electric lock includes a lock bolt and a first engagement element having disengaged and engageable positions. An electric actuator includes an output operative to move the first...
7216518 Mechanical dial combination lock  
A mechanical dial combination lock for use in safes, file cabinets, security doors, vaults and warehouse doors. The disk type mechanical combination lock features a plurality of annular code discs,...
6904778 Mechanical combination lock  
A combination lock configured to resist surreptitious compromise by radiographic imaging and automatic dialers. In one aspect, the combination lock may include gate wheels having one true gate...
6502438 Electronic combination lock having anti-tampering features  
An electronic combination lock including an electronic combination input device, a lock-bolt mounted for movement between locked and unlocked positions and a rotatable first engagement element...
6341513 Two-in-one combination safe lock  
A two-in-one combination safe lock. The combination safe lock includes lock device and an electronic lock device in a box that is set on the side of a safe door with a lock latch on the upper side....
6295849 High security electronic dial combination lock  
An electronic combination lock is disclosed which allows access to a closed or secure location wherein the lock includes a locking mechanism for operating between a locked condition and an unlocked...
6212923 Lock including means for sensing position of bolt and for indicating whether or not bolt is extended from lock case  
A dead bolt lock automatically blocks the extended bolt to prevent externally-applied force from thrusting the bolt back into the lock case, and in the event of physical attack the lock responds by...
6196037 Lock system enabling user to lock door and extend lock bolt in a single action and push-pull lock with cushioning arrangement for protecting bolt drive components  
A dead bolt lock automatically blocks the extended bolt to prevent externally-applied force from thrusting the bolt back into the lock case, and in the event of physical attack the lock responds by...
6178791 Electronic reset for solenoid activated control in an electronic lock  
The technique for electronically resetting a magnetically sealed solenoid to an unattracted, unactuated position is described for use with solenoids which have either a residual magnetic or a...
6151935 Deadbolt combination lock system with automatic locking spring bolt  
A deadbolt lock and a deadbolt which will extend automatically whenever a container is locked by virtue of a rigid portion of the container engaging a trigger element extending from the end face of...
6094953 Electrically controlled slidebolt lock  
A slidebolt lock, with slidebolt displacement forces provided by a mechanism outside the lock assembly and acting on the slidebolt, is locked by a blocking member carried by the slidebolt and...
6038897 Back cover lock for a combination lock  
A mechanism for locking the back cover of a combination lock to the lock housing is described having two sequentially and phased moveable parts, each having an aperture through which a locking...
6016677 Dead bolt combination lock and push-pull lock, each with integrated re-locking features, lock with auxiliary security features, and lock keypad with tamper detection and response features  
A dead bolt lock automatically blocks the extended bolt to prevent externally-applied force from thrusting the bolt back into the lock case, and in the event of physical attack the lock responds by...
5893283 Solenoid controlled bolt control for an electronic lock  
An electronic combination lock of the self-powered type, wherein the electrical energy for operation of the lock is developed within the lock itself, has a solenoid which magnetically seals in the...
5881589 Gear driven bolt withdrawal for an electronic combination lock  
A gear driven bolt withdrawal mechanism for an electronic lock is disclosed wherein an electromagnetic device such as an electromagnetic device displaces a partial gear into a position to be...
5870914 Electronic combination lock with self-contained power generation  
A self-powered lock incorporates a generator within the dial housing. The generator incorporates a plurality of coils and two concentric rings of magnetic segments. The rings are mounted on a dial...
5862692 Safe door lock with servo motor operated cam  
A safe door lock with a servo motor operated cam is described. A retracting lever is pivotally secured to the locking bolt and is displaced on a pivot connection with the bolt by the cam. The...
5816084 Electronic combination lock with an arrangement for moving a locking lever both into and out of an "engage" position in which lock may be opened  
A user of a self-powered electronic combination lock rotates an outer dial to cause generators to generate energy for storage in a capacitor bank. The user then rotates an inner dial to cause a...
5749252 Manipulation resistant combination lock and method  
A manipulation resistant combination lock includes a housing, a drive cam attached a drive shaft, a moveable bolt, a fence attached to a fence lever, and tumbler wheels. A fence lever is pivotally...
5632170 Combination lock preventing manipulation for unauthorized access  
An improved combination lock, such as for a safe, for the lock type having a plurality of tumbler wheels mounted coaxially with a driving cam, the tumbler wheels having fence gates to be aligned by...
5632169 Self powered electronic combination lock having comprehensive monitoring of power levels for various functions  
A user of a self-powered electronic combination lock rotates an outer dial to cause generators to generate energy for storage in a capacitor bank. The user then rotates an inner dial to cause a...
5613388 Electronic combination lock entering a lockout mode after a number of successive incorrect combination entries  
A user of a self-powered electronic combination lock rotates an outer dial to cause generators to generate energy for storage in a capacitor bank. The user then rotates an inner dial to cause a...
5609051 Keyless entry system for replacement of existing key locks  
A keyless entry system is disclosed for use with a deadbolt latch mechanism on a door. The latch mechanism includes an arm having a slot for engaging and disengaging an associated deadbolt. The...
5592838 Anti-attack interlocks for a combination lock mechanism  
Interlocks are described that prevent the bolt of a bolt lock from being displaced to the unlocked position by the use of impact and inertial of the lock parts, heat and the displacement of the...
5575164 Combination lock  
A combination lock includes a dial shaft adapted to be rotated with a user's hand, a fore lock plate, at least one intermediate lock plate and a rear lock plate arranged in parallel with each...
5542272 Numerical combination lock with turning knob, cam plate, and drop lever  
A numerical combination lock 1 has a turning knob 3, by means of which a cam plate 4 can be turned in order to operate a drop lever 5 that is hinged to a locking bolt 2 of the lock 1 and in this...
5511401 Lock bolt and deadbolt interconnection mechanism  
A combination lock/deadbolt assembly connection technique is disclosed for connecting the bolt of the combination lock to the deadbolt of the deadbolt assembly to provide a lost motion connection...
5473919 Manipulation resistant combination lock with magnets  
A manipulation resistant combination lock is shown which has a housing, a drive shaft, a cam driver attached to the drive shaft, a bolt slidable into and out of the housing, a fence lever, a fence...
5473920 Manipulation proof combination lock  
A combination lock is provided having a housing with a lock dial shaft rotatably mounted thereto. A lock bolt is slidably mounted to the housing, and a fence lever is pivotally coupled to the lock...
5343723 Combination lock  
In accordance with one aspect of the invention, a kicker arm-pawl lock mechanism rotates a number one wheel of a combination lock a predetermined distance to require resetting each number of a...
5257519 Dead bolt assembly for combination dial lock assembly  
A dead bolt assembly for use with a combination dial lock assembly includes a housing structure adapted to receive a combination dial lock assembly. The housing structure includes a bolt hold back...
5184491 Combination lock with motor-driven tumblers  
A combination lock wherein the tumblers can be moved to predetermined positions, preparatory to retraction of the locking bolt from extended position, by an electric motor which is controlled by a...
5134870 Electro-mechanical lock with rotary bolt  
An electronic lock for a safe door is provided with a digital keypad entry device, a mechanical bolt works and associated handle for retracting the door bolts, and a spring biased rotary bolt which...
4967577 Electronic lock with manual combination override  
An electronic lock with manual combination override for opening of a lock by both an electronic and manual means. The electronic lock has a bolt operating release mechanism which operates to allow...
4961332 Combination disk lock comprising means for automatic scrambling on locking  
A lock comprising notched combination disks, a bolt movable in translation and urged to its extended position which may be moved solely when a coded combination has been formed by rotation of the...
4910981 Automatically locking and tumbler scrambling manipulation proof lock  
An automatically self locking and self scrambling combination lock is disclosed wherein a spring biased bolt is moveable by its bias toward a locking position and a detent is provided on an end of...
4841759 Auto guiding combination lock  
A fast opening, high security combination lock includes a case, a dial connected to a rotatable spindle, and a plurality of rotatable tumblers mounted coaxially therewith. A movable impeller...
4831851 Combination/electronic lock system  
A lock mechanism having a mechanical combination lock and an electronic lock, wherein the mechanical combination lock serves for effecting a fail safe entry in case of failure of the electronic...
4776190 Radiological detection resistant key changeable combination lock  
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...
4756176 Fence lever control device for a combination lock  
A fence lever control device for a combination lock provides a pivoted plate having an arm positioning a spring to normally bias the fence lever of the lock in a position out of engagement with the...
4745784 Electronic dial combination lock  
An electronic dial combination lock has a spindle journalled within the lock for movement in two degrees of freedom, i.e., both rotational and axial displacement, to cause engagement of a push pin...
4722207 Security systems  
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...
4694670 Combined key and combination lock  
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...
4574603 Dial-type combination lock  
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,...
4512167 Variable position quick mount combination lock  
A quick mount combination lock constructed to be readily installed or changed to assume any of the four right hand, left hand, vertical up, or vertical down installation positions from externally...
Matches 1 - 50 out of 72 1 2 >