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| Number | Title | Issue Date |
| 7318331 | Combination lock having a knob rotatably mounted therein to activate/deactivate the locking mechanism of the combination lock A combination lock has a plurality buttons movably received in the casing and a knob rotatably received in the casing. When specific buttons are pressed downward, rotating the knob from a first position to a second position, the balls in the downward movement button... | 01/15/2008 |
| 7317401 | Method and mechanical tamper-evident case fastener A method and apparatus are provided for identifying product tampering. A mechanical fastening screw, a sleeve and a movable follower disk are arranged to show evidence of tampering. The movable follower disk is received within a cavity defined by the sleeve. The sle... | 01/08/2008 |
| 7287405 | Drill resistant lock A drill resistant lock (30) comprises a bolt member (33) for fitting into a similar sized and shaped slot (35) to secure closure of entry to a property, a locking mechanism (31, 32) associated with a bolt member (33), whereby relea... | 10/30/2007 |
| 7100406 | Locking mechanism for a safe door A locking mechanism that allows a live bolt lock plate and a primary vertical lock plate to move relative to one another irrespective of the plates connection with a drive mechanism is provided. The drive mechanism includes first and second gears and is used to move... | 09/05/2006 |
| 7007524 | Dead bolt lock system having multiple security features A dead bolt lock system which may use one or more security locks in conjunction with a dead bolt to provide various levels of security access to a door. Generally, the lock system tests the condition of the security lock or locks before allowing retraction of the de... | 03/07/2006 |
| 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 positioned among a plurality of false gates in which the true gate is con... | 06/14/2005 |
| 6679087 | Safe lock mechanism The invention relates to a safe mechanism for resistance to drilling, by use of a door mounted crankshaft mechanism. The crankshaft includes a shoulder which transfers force to the safe door rather than transmitting it to other lock mechanism components. ... | 01/20/2004 |
| 6672117 | Shielded window structure of numeral lock Shielded window structure of a numeral lock. A window member is disposed on one side of the housing of the lock. The window member is formed with a row of windows through which the numerals of a row of numeral wheels are shown. The linking member is drivi... | 01/06/2004 |
| 6568225 | Theftproof lock device for a suitcase A theftproof lock device for a suitcase includes a housing, and a closure plate mounted on an opened side of the housing, and further includes multiple number wheel sets, two opposite press members, a drive plate, a slide, and a circuit board each mounted... | 05/27/2003 |
| 6494067 | Drive apparatus and portable power source for computerized combination locks A drive apparatus for use with a computerized combination dial lock includes a rotating or longitudinally translating member which imparts motion to an electrical generator for powering the electrical components of the computerized combination dial lock. ... | 12/17/2002 |
| 6434987 | Motorized security locking system A motorized security locking system which is intended to be placed on the door of a high security enclosure and whose operation is reliable and more compact. The motorized security locking system includes: a case (1); a sliding bolt (3) movable in transla... | 08/20/2002 |
| 6434986 | Lock protection A secure container comprises an external wall including a door (56) and a lock (36) for securing the door (56). The lock (36) comprises a lock mechanism (47) located internally of the wall (56) and a plate (40) mounted between the wall (56) and the lock m... | 08/20/2002 |
| 6318134 | Safe locking mechanism A lockable enclosure including a safe, a suitcase, a briefcase, and the like has an interior sized to receive articles and an electronic key assembly actuating a cam mechanism upon entry of a preprogrammed entry code. The cam mechanism has a cam that depr... | 11/20/2001 |
| 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 prolonging or perpetuating the dead bolt blocking conditi... | 04/10/2001 |
| 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 prolonging or perpetuating the dead bolt blocking conditi... | 03/06/2001 |
| 6145355 | Pushbutton lock Various enhancements are provided to a pushbutton lock to enhance its security. One is the provision of button tips that are mounted on the ends of the button assemblies and spring-loaded to protrude from the face of the lock, regardless of whether the un... | 11/14/2000 |
| 6098433 | Lock for safes and other security devices A lock for safes and other security devices is disclosed having a case mountable on the inside of a safe door. A locking bolt in a slidable relationship within an opening in the case, moves between locked and unlocked positions. A gate, constrained in sli... | 08/08/2000 |
| 6094952 | Dead bolt combination lock with integrated re-locking 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 prolonging or perpetuating the dead bolt blocking conditi... | 08/01/2000 |
| 6082153 | Anti-tampering device for use with spring-loaded electronically moved pin locking mechanisms in electronic locks and the like An anti-tamper locking assembly for locking a position of a block, such as a locking bolt in an electronic lock, electrically moves a pin to engage or dis-engage the block. When dis-engaged, the block can be moved and access or the like can be made. The p... | 07/04/2000 |
| 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 member may be inserted, the apertures are disposed in parts mo... | 03/21/2000 |
| 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 prolonging or perpetuating the dead bolt blocking conditi... | 01/25/2000 |
| 5942973 | Locking system for a security container A locking system for a security container includes a frame in cabinet form, a jamb formed on the frame, a movable locker plate which determines opening and closing of a door by overlapping with the jamb and which is formed on the door, a combination lock ... | 08/24/1999 |
| 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 activated position, thus preserving the "open" condition o... | 04/13/1999 |
| 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 engaged by a manual drive. The partial gear, in turn, drives sub... | 03/16/1999 |
| 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 housing, capable of rotation, and rotation of the dial hou... | 02/16/1999 |
| 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 position of the cam and the bolt are detected by microswitches.... | 01/26/1999 |
| 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 microcontroller to sequentially display a combination of numb... | 10/06/1998 |
| 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 attached to the bolt, and has a nose portion engageable wi... | 05/12/1998 |
| 5647235 | Tamper-evident electronic combination lock having integral bearing/retaining member 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 microcontroller to sequentially display a combination of numb... | 07/15/1997 |
| 5640862 | Electronic combination lock including a sensor arrangement which senses the position and direction of movement of the combination dial 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 microcontroller to sequentially display a combination of numb... | 06/24/1997 |
| 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 microcontroller to sequentially display a combination of numb... | 05/27/1997 |
| 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 proper combination dialing, the driving cam having a cam ... | 05/27/1997 |
| 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 microcontroller to sequentially display a combination of numb... | 03/25/1997 |
| 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 cover plate of the lock housing.... | 01/14/1997 |
| 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 attached to the fence lever, and a set of tumbler wheels. ... | 12/12/1995 |
| 5473922 | Motorized electronic lock A motorized electronic lock is disclosed including an electric motor, a screw powered by the motor, a nut threadedly engaged with the screw and having two extending arms projecting therefrom, one of which arms is a cam follower arm that rides along a cam ... | 12/12/1995 |
| 5473921 | Combination lock with arrangement for defeating automatic dialer A circular rotating member, having an outer peripheral surface, is rotatably mounted in a ring member. The rotating member includes an elongated central slot and four peripheral slots extending inwardly from the peripheral surface of the rotating member a... | 12/12/1995 |
| 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 combination during lock manipulation. A drive cam-travel arm a... | 09/06/1994 |
| 5271253 | Electronic combination lock with magnetic anti-attack interlock To prevent the opening of an electronic combination lock by using a strong magnet to operate a stepper motor, a magnetic interlock is included in the lock structure. A magnetic pin is held in a retracted position by a small magnet when a strong attack mag... | 12/21/1993 |
| 5267460 | Combination lock A combination lock for a key safe has an over-center spring for biasing a unitary bolt in an extended or retracted position. A switch for actuating the bolt has a break-away button to foil vandals. The bolt includes checkers for engaging notches in a plur... | 12/07/1993 |
