Abstract: The invention relates to a method for synchronizing a bi-directional transmission of data between a transmitter and a receiver based on the transmission of frames (10) having a predefined bit length, with a predefined first bit length (20) being provided in each frame (10) for the transmission of data from the transmitter to the receiver and a predefined second bit length (30) for the transmission of data from the receiver to the transmitter, with a trigger pulse (40) being sent to the receiver parallel to and independently from the transmission of the data between the transmitter and receiver, which pulse triggers a data collection process at the receiver, wherein the frame (10) has a time slot (50), during which no information is transmitted from the transmitter to the receiver and also not from the receiver to the transmitter, and wherein the trigger pulse (40) is transmitted from the transmitter to the receiver during this time slot (50).

Abstract: A latch system includes a latch and a key barrel operably coupled via a clutch to the latch. The clutch has an engaged condition where operation of the key barrel unlatches the latch, and the clutch has a disengaged condition where operation of the key barrel does not unlatch the latch.

Abstract: Disclosed is a cam lock assembly that includes a lock unit, a locking mechanism and a cam, the locking mechanism operating for rotating the cam between open and closed positions thereof; and a separate electrically-driven lock control module connectable to the lock unit and cooperating therewith for selectively switching the lock unit between a locked state in which the cam is in the closed position and an unlocked state in which the cam can be rotated to the open position.

Abstract: An electric door lock includes a transmission wheel driven by a motor and incorporating a spring with a driving end to drive a driven wheel. The transmission wheel and the driven wheel are rotatably sleeved around an inner drive tube connected to an inner handle. A spindle is inserted into the inner drive tube and has an operating end exposed from the inner handle. The driven wheel is connected integrally to the spindle for rotation. Preferably, a coupling piece extends through an arc-shaped slot in the inner drive tube and interconnects the driven wheel and the spindle.

Abstract: A lock system includes a lock mechanism for holding a lid element in a locked state, an electric actuator for driving the lock mechanism to an unlocking side based on an operation of an open switch, and a key cylinder adapted to be operated to rotate by a key so as to be switched through the rotational operation to an “UNLOCK” position where the open switch is enabled to function and a “LOCK” position where the open switch is disabled from functioning, whereby unlocking of the lid element is prohibited through a rotational operation of the key cylinder to the “LOCK” position. An operating unit of the lock system causes the key cylinder and the lock mechanism to be mechanically linked with each other by a wire cable, whereby the lock mechanism is forcibly driven to the unlocking side through a rotational operation of the key cylinder to the “OPEN” position.

Abstract: A lock (10) which includes a body and an actuator (36) which is pivotally displaceable between a rest position and a displaced position. The lock further includes a first member (64) which is longitudinally displaceable by the actuator (36) and a second 5 member (66) which is longitudinally in register with the first member (64) and longitudinally displaceable relative to the body and the first member (64). The lock includes bias means (90) biasing the first and second members (64, 66) away from one another. The lock further includes retaining means (98) which is displaceable from a locked position, in which it inhibits displacement of the second member (66) and a 10 released position in which it permits displacement of the second member (66).

Abstract: A storage cabinet with key is provided with an electronic key having an electronic key ID memory means that stores electronic key ID, a storage box that stores an item to be kept, an opening and closing permission means that permits opening and closing of storage boxes, and an opening and closing control means that, when it reads out the electronic key ID and authenticates the right, makes the opening and closing permission means permit opening and closing of the storage boxes. The electronic key checks individual identification information input by one or more buttons arranged at the electronic key with specific individual identification information registered at an individual identification information memory means arranged at the electronic key.

Abstract: An electro-mechanical lock structure comprises a casing, an electric control mechanism and a manual control member. The casing has a base and an accommodating space. The electric control mechanism is disposed within the accommodating space of the casing comprising a clutch gear, a movable assembly, a rotation member and a motor able to drive the clutch gear. The clutch gear has a first side facing the rotation member, a second side opposite to the first side and at least one pushing block disposed at the first side. The movable assembly contacts against the second side of the clutch gear. The rotation member has at least one protrusion that corresponds to the pushing block and able to be pushed to move by the pushing block. The manual control member has a knob and a spindle coupled to the knob, the spindle penetrates the base of the casing and one end of the spindle is coupled to the rotation member of the electric control mechanism.

Abstract: Disclosed is a locking device which comprises a housing, and a cylinder device rotating within the housing, wherein the housing is provided with a protrusion therein to prevent the cylinder device from being rotated, and the cylinder device includes a motor, a cylinder receiving the motor, a tilting mechanism located at the front of the cylinder, having an upper portion tilted to be fixed to the protrusion of the housing by forward rotation of the motor and a recess released from the protrusion of the housing by reverse rotation of the motor, and a locking plate adapter fixed to the tilting mechanism, and a locking plate fixed to the adapter.

Abstract: A lock device is adapted to unlock a lock by transferring a lock catch from a locking position to a releasing position. The device comprises an electric motor, which is mechanically connected to an axle by means of at least one transmission means, and rotation of said axle actuates the lock catch. The lock device is characterized in that the transmission means comprise a weakening structure adapted to break and disrupt the mechanical connection between the electric motor and the axle if a predetermined threshold force is exceeded.

Abstract: 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 verifies that user-input information is correct for unlocking the lock, the bolt retraction gear and manually-driven gear train are operatively coupled such that the gear train can drive the lock bolt from the extended position to the retracted position.

Abstract: An electrically-operable strike for locking and unlocking doors. The strike is mounted on a face plate which in turn is mounted on a door jamb. The face plate is provided with mounting apertures which receive adjustment inserts each having an offset aperture for a mounting screw for mounting the strike on the face plate. The face plate also has a tongue extending distally from a lip and a break-off portion at the distal end of the tongue. The strike is first mounted with the offset apertures in a distal position. If the strike does not function properly due to preload, the strike is remounted with the offset apertures in a proximal position and the break-off portion is removed.

Abstract: A door lock system for enclosures is provided which includes a screw drive mechanism releasably mounted on a back plate member and coupled via threads to a threaded locking member to linearly drive the locking member to engage with a receptor on an enclosure frame to lock the enclosure. A controller unit has an integrated circuit configured to control the operation of the screw drive mechanism and report the status of the door to a central location. A position switch is used to indicate whether the door is open or closed so that the controller unit can automatically engage the screw drive mechanism to lock the door after a preset time delay. A keypad allows a user to enter a code to unlock the door. A radio in the controller unit permits wireless communication to report status and to allow central command control over the doors.

Abstract: A locking device for a truck is disclosed. The locking device is mounted on the door plank of a container door and is fastened in the doorframe in order to lock the container door. The device comprises a first body, a second body, and a lock. The first body includes a pushing element, a pressing element, and a driver unit. The end of the pressing element is pressed against the end of the pushing element. The driver unit is connected with the pressing element and is next to the second holder. The driver unit is electrically connected to the control unit. The second body includes a rotary element. The rotary element is stopped on the pressing element. The lock is disposed next to the first body. The present invention provides an improved locking device for a truck and ensures the safety of cargo when user forgets to lock the container.

Abstract: An institutional door lock mechanism for retrofitting existing installations with a remotely controllable/monitorable door lock and open/close position indicator is described. A hollow vertical door strike jamb extends along an outside surface of the door frame opposite a hollow vertical columnar striker plate mechanism mounted on a fronting plate of the door. A hollow vertical housing also on the fronting plate contains a first component part of a proximity/alignment detection mechanism including a magnetic reed switch. The door strike jamb is configured as a vertical riser for housing a wiring harness for the catch-extension/retraction mechanism and for the proximity/alignment detection mechanism. The catch-extension/retraction mechanism includes a motor for extending/retracting the catch, the motor being operable by a securely coded manual key placed adjacent a switch mechanism or within a keyway operatively coupled with the switch mechanism.

Abstract: A system for electronically and remotely activating a deadbolt lock to actuate and either extend or retract a deadbolt into a door or barrier. The system can be activated by remote control or by a manual knob. The system is constructed so as to fit on any standard single cylinder, cylindrical deadbolt system and utilize the existing deadbolts keys. The system can be used in homes, apartments, or other buildings.

Abstract: A locking apparatus for a garage door which utilizes a pair of actuators with one actuator being mounted at a side edge of the garage door and the other actuator mounted at the opposite side edge of the garage door. One actuator is mounted on a carrier gear which connects to a worm gear which is driven by an electric motor. Each operator connects with a locking bolt with there being a separate locking bolt for each actuator. Each locking bolt is to be movable in conjunction with the door jamb of the garage door to lock the garage door to the jamb. Both actuators pivot in the same direction. Both locking bolts are linearly slidable. A connecting member connects between the first actuator and the second actuator so that the actuators move in unison. One actuator has a back end which extends through a slot formed in a latch housing. This back end is manually accessible to cause the actuator to move manually if electricity fails.

Abstract: A magnetic lock comprises an actuation portion; a positioning seat having a slot at a rear end thereof for receiving the actuation portion and a circuit board; a tongue embedded at the slot at the lower end of the positioning seat and being fixed to the connecting sheet; the tongue being movable within the positioning seat; a retaining seat having a displace unit; a core embedded into the slot of the retaining seat and to combine with the displace unit; thereby the movable post, driving sheet, connecting sheet and tongue being interconnected. The magnetic lock is suitable for doors of various specifications. Furthermore, the magnetic lock has an open mode in power-on state and a close-mode in power-off state. Moreover, a pin serves to achieve the object of function setting modes. The magnetic lock has the functions of a mechanical lock and an electronic lock.

Abstract: An electronic deadbolt lock arrangement including a lock having a bolt movable between locked and unlocked conditions. The lock includes a manual control and a power drive to operate the lock that are connected by a decouplable transmission enabling the lock to be operated by either the manual control or the power drive. The transmission includes two concentric cylinders that can be locked or unlocked for relative rotational movement, with manual operation of the lock decoupling the power drive. A biased pin engages co-operating apertures in the cylinders to lock the two cylinders to each other. A cam operated by the manual drive acts against the pin to cause the two cylinders to be decoupled.

Abstract: An apparatus to secure a door of a cargo container. The apparatus includes a latching device and a cover can be positioned over at least a portion of the latching device. The latching device is positioned within a housing. At least one pad is positioned between the latch and the housing. The latching device includes a screw for moving the latch between an open position and a closed position and a rotary motor for turning the screw. A pre-compressed spring is coupled to the latch and the screw for exerting a force to Increase friction and prevent back rotation of the screw.

Abstract: An electromagnetic lock device includes a receptacle, a deadbolt slidably engaged in the receptacle and extendible out of the receptacle, for locking a door panel to a door frame, a shaft attached to one end of the deadbolt. A housing is attached to the receptacle, and includes a plunger core slidably received in a coil and actuatable by the coil and having a pin. An elbow includes an arm pivotally secured to the receptacle, an opening formed in an intermediate connecting portion to slidably receive the pin, and another arm having an oblong hole to slidably receive the shaft, and to allow the deadbolt to be forced in and out of the receptacle by the plunger core via the elbow. A spring member may bias the plunger core out of the housing, when the coil is not energized.

Abstract: A door entry system includes control means for controlling operation of the door entry system and a deadbolt assembly that is operable to selectively lock a door. The deadbolt assembly includes: a first bolt member movable between an extended and a retracted position; switch means arranged on said first bolt member, the switch means conveying a signal to the control means to move said first bolt member between the extended and retracted positions when the switch means is activated; and, driving means for selectively moving the first bolt member between the extended and retracted positions.

Abstract: An electronic lock utilizes two microprocessors remote from each other for enhanced security. The first microprocessor is disposed close to an input device such as a keypad, and the second microprocessor is disposed close to the lock mechanism and well protected from external access. The first microprocessor transmits a communication code to the second microprocessor when it receives via the input device an access code that matches a preset access code. The second microprocessor opens the lock if the transmitted communication code matches a preset communication code. The dual-microprocessor arrangement is advantageously used in a voice controlled access control system and in a motorcycle ignition control system. The present invention further provides an electronic access control system which has a master electronic key having a preset number of access, and an electronic alarm system for a bicycle that has a remote control mounted in the helmet of the rider.

Abstract: The present invention relates to a lock arrangement having a lock (14) and including a first locking device (52) adapted to operate the lock to lock and unlock the lock. A second locking device (68) includes a member (32) moveable between a first and a second position wherein when the member (32) is in the first position the lock is locked and when in the second position the lock is unlocked. Generally the first locking device (52) is key operated and the second locking device (68) is driven by an electric motor (72). The first locking device (52) can operate the lock independently of the member (32) and regardless of its position and when used to lock or unlock the lock can decouple through a clutch mechanism (80) the second locking device (68) from controlling the lock.

Abstract: A signal transfer assembly supplies a signal to unlock a door by controlling a lock of the door. The signal transfer assembly includes a transfer strip assembly in the door frame for receiving a deactuation signal, for passing the deactuation signal to a transfer tip assembly in the door, and for passing the deactuation signal to the lock to unlock the lock.

Abstract: An electric padlock includes a lock casing, a shackle member, a latch member, and a battery cap member. The lock casing is formed with a battery compartment to receive a battery unit, and a battery access hole. The shackle member extends movably into the lock casing, and is formed with a shackle groove. The latch member is received in the lock casing, and is movable to engage the shackle groove so as to lock the shackle member on the lock casing, and to disengage from the shackle groove so as to unlock the shackle member from the lock casing. The battery cap member is mounted movably on the lock casing to close the battery access hole, and is formed with a stop projection that engages the shackle member so as to inhibit opening movement of the battery cap member when the shackle member is locked on the lock casing.

Abstract: An internal lock (E) for safes and similar applications, with an outer console (A) that includes software with the instructions required by the user, which is connected by that passes through the wall of the safe to the lock. The latter includes a printed circuit linked to the one in the console and is operated by a power supply (D) connected to the mains. A simple mechanism composed of a latch (5), a motor (7), gears and a trigger are responsible for the operation of the latch, in accordance with the orders received.

Abstract: The system for monitoring and dispensing medical items which are dispensed for administration to patients includes a data terminal (76, 338) which is connected through a network (82, 328) to at least one remote computer (84, 324) having a processor and a data store. The system also includes a reading device (348) which is connected to the network. A user of the data terminal or the reading device is enabled to select a patient for whom medical items will be used, and responsive to a request to dispense items the requested items are dispensed from dispensing devices (96, 100, 344, 346, 450, 527) connected to the data terminal. A report generating device (384) generates reports (388) which include machine readable indicia corresponding to patients and/or medical items. Users may select patients and dispense medications by reading the indicia from the reports using the reading device.

Abstract: A main body has a drive unit and a bar. When the drive unit is driven, the bar is inserted into frames. Accordingly, an inner panel and an outer panel are fixed.

Abstract: A remote control lock structure comprising a receiving box, a locking member, a transmission mechanism, an electric circuit element and a cover, the locking member is placed in the receiving space align a screw hole of a positioning block with a round hole on the receiving box; an axle rod is extended into and out of the round hole, one end of the axle rod is connected to a main gearing wheel of the transmission mechanism. The main gearing wheel is connected at its lateral sides with the two power transmission wheels, two power motors are connected with the electric circuit element which provides electric power to activate one of the power motors, thereby one of the two power transmission wheels and the main gearing wheel are driven to rotate; the axle rod further drives the locking rod in front of it to rotate to make the latching rod on the front end of the locking rod extend out and retract in between the screw hole and the round hole.

Abstract: A remote-controlled door lock includes a housing installed inside with a battery base, a circuit board and an electromagnetic valve. The electromagnetic valve is fitted with a lateral valve rod controlled by the circuit board to extend out of the through hole in a sidewall of the housing and engage in the insert hole in a sidewall of the bolt base of a doorjamb. A remote controller is operated to control the valve rod of electromagnetic valve to move outward and extend out of the through hole of the housing and engage in the insert hole of the bolt base to lock the door at a limited position. Thus, the door lock is impossible to be unlocked only by a key before the valve rod of the electromagnetic valve is released by the remote controller to disengage from the insert hole of the bolt base, having best effect of anti-theft.

Abstract: Highly preferred embodiments of the present invention have a lock bolt extendible and retractable by movement of a power transmission assembly driven by an actuator and having a cam thereon which cams against the lock bolt to retract the lock bolt and unlock the steering column. In some preferred embodiments, the cam has a curved surface with varying distance from the axis of rotation of the cam or pivot to produce smooth and controlled lock bolt camming action with little to no jarring motion. In order to significantly reduce manufacturing and assembly time and cost, some or all of the power transmission assembly can be assembled prior to installation in the lock assembly frame. More preferably, some or all of the power transmission assembly is integrally formed. Preferably, part or all of the lock assembly can be assembled without turning, flipping, or otherwise re-orienting the lock assembly during assembly.

Abstract: A remote-controlled door lock in the present invention has a case body provided with a battery base, a circuit board and a bolt-locking device therein. A bolt rod of the bolt-locking device can be actuated by the battery base and the circuit board under the control of a remote controller to extend out of a through hole of the case body to be inserted into and engaged with an engagement hole of a strike base installed in a door frame, thereby locking a door plate in a limited position. When the door plate is locked with the bolt rod still engaged with the engagement hole of the strike base, the door plate is unable to be completely unlocked only by a key without using the remote controller to actuate the bolt rod to be disengaged from the engagement hole of the strike base, thereby achieving a best effect of anti-theft.

Abstract: An electronically operated lock (1) includes a two-part lock unit (2), a latch (5), and a transmission shaft (4). The lock unit includes a base (80), a top cover (20) covering the base, a driving unit (60), a handle assembly (30), and a clutch (50). The driving unit includes a gear plate (64). The gear plate includes a pair of driving protrusions (641). The handle assembly includes a controller shaft (32) fittingly receiving the transmission shaft therein, and a pinion (35). A first annular gear portion (321) is formed on a bottom of the controller shaft. The clutch includes a pair of driven protrusions (521), and a second annular gear portion (56). The driving protrusions engage the driven protrusions to rotate the clutch. The second annular gear portion meshes with the first annular gear portion via the pinion. Accordingly, the latch can be actuated between a locked state and an unlocked state.

Abstract: An electronically-driven lock (1) includes an inner lock unit (2), an outer lock unit (5), a bolt assembly (3) having a latch, and a transmission shaft (4) extending through the bolt assembly to actuate the latch. The inner lock unit includes a base (80), a driving unit (60), a clutch (50), a knob (30), and a top cover (20) covering the base. The driving unit includes a gear plate (64). The gear plate includes a pair of driving protrusions (641). The knob has a mating shaft (32) fittingly receiving the transmission shaft therein. The clutch includes a pair of driven protrusions (541), and defines a generally rectangular mating slot (52) fittingly receiving the mating shaft therethrough. The driving protrusions engage the driven protrusions to rotate the clutch. The clutch accordingly rotates the mating shaft of the knob to rotate the transmission shaft. Thus the latch can be actuated to locked position or unlocked.

Abstract: A remote-controlled lock includes a shell, an engage base, a fix base, a motor, a circuit board, an actuating member, a passive member and a spring. The circuit board receives a locking signal from a remote controller and starts the motor to rotate clockwise together with the actuating member, which pushes the passive member to move outward and has its projections engaged with the projections of the passive member, which compresses the spring to force its deadbolt extend outward and inserted in the insert groove of the engage base to finish locking of the lock. The circuit board receives an unlocking signal and starts the motor to rotate reversely together with the actuating member, letting the passive member moved inward by the recovering resilience of the spring and the deadbolt disengaged from the insert groove of the engage base to finish unlocking of the lock.

Abstract: An improved structure of electric lock disclosed herein employs only one electromagnetic coil and a DC power source formed of 4 3A-type dry battery unit for operating the lock instead of using two coils and an AC large power source along with a clumsy conductor layout, and a skilful arrangement of mutual positions between the driven rod and the extended portion of the actuated rod can produce an amplified driving torque effect from this minimized DC power source. Besides, the key function is controlled by a coded chip attached thereon to identify the visitor.

Abstract: In an electric door lock, a spindle with a manually operable rotary knob is connected operably to a deadbolt, and has a spindle coupling ring sleeved co-rotatably thereon, and a rotary seat sleeved rotatably thereon. The rotary seat has a clutch portion surrounded by a stationary seat and provided with angularly displaced resilient locking units that normally engage the stationary seat, and is disengaged from the stationary seat to permit operation of the rotary knob to rotate the spindle. An electric driving motor has a transmission shaft coupled to the rotary seat. The locking units are disengaged from the stationary seat and engage the spindle coupling ring when the motor is operated to rotate the rotary seat, thereby resulting in co-rotation of the spindle. The locking units include ball members which move rollingly out of locking grooves in the stationary seat when the rotary seat is rotated.

Abstract: A keyless locking system comprises a housing with a planar plate constituting a front wall and peripheral walls extending inwardly to form an open housing. A rotatable assembly is rotatably secured within the housing. The rotatable assembly includes a rotator with a cylindrical shaft, a spring loaded retention member, a channel member and a trapezoidal end plate. The channel member has a parallel plate with a pair of sidewalls to encompass and contact the sides of a deadbolt. The first end has a retention bar between the sidewalls. A gearing assembly and an associated motor are provided. An electronic assembly is provided to effect the driving of the motor and worm gear. An associated switch initiates the driving of the electronic assembly and motor. Provided last is a control member. The member is adapted to be pressed to drive the motor rotating the gear assembly and channel member and deadbolt.

Abstract: A remote control locking system for use in combination with a deadbolt lock and a doorknob lock mechanism in a conventional door locking device. The locking system includes a first gear assembly coupled to the deadbolt lock mechanism; and, a second gear assembly coupled to the doorknob lock mechanism. A receiver is coupled to a control unit, which is disposed for controlling the first gear assembly and the second gear assembly for enabling the lock mechanisms to lock or unlock. A remote control device including a transmitter is used for sending a signal to the receiver for activating the locking system. The locking system also includes a first motor disposed for driving the first gear assembly and operative in response to a first signal from the receiver; and, a second motor disposed for driving the second gear assembly and operative in response to a second signal from the receiver.

Abstract: An electrically operated lock including a latch mechanism, a spindle for displacing a dead bolt of the latch mechanism, and an actuating unit which includes a swing member, a slider, a first cam mechanism, a wheel member, a second cam mechanism, and a motor for actuating the spindle. The swing member coacts with the spindle and swings along with rotation of the spindle. The slider coacts with the swing member and is movable between a first and a second position. The first cam mechanism coacts with the slider and the swing member so as to move the slider between the first and second positions in a manual operation mode. The wheel member coacts with the slider. The second cam mechanism coacts with the slider and the wheel member so as to move the slider between the first and second positions in an electrical operation mode.

Abstract: A remote control door entry system, which may be installed in a door jamb/frame, in the center frame post of a door assembly that has a side light glass unit, or centered in the edge of the stationary door of a double door arrangement. The slim design of the present invention contributes to its significant versatility.

Abstract: The present invention concerns a control device for a lock mechanism, in particular a lock mechanism comprising a housing; a hollow hand knob to be pressed on which is mounted on the housing such that it can rotate and which has a far end with teeth inside this housing; an electric motor situated in the hollow hand knob, applied on the housing in a fixed manner and situated with its drive shaft in this housing; a mesh element mounted in the housing in a rotatable manner and provided with teeth for meshing with a key part of the lock mechanism and a gear wheel which can be axially moved by the hand knob.

Abstract: A motor-driving lock includes a lock bolt for mounting in a door and having a rotary core and a latch drivably connected with the core. An inner lock unit having a base for being attached to an inside of the door, having a transmission mechanism having a rotary shaft rotated by a drive device. An outer lock unit for being attached to an outside of the door and having an elongated rotor rotatably mounted in the outer lock unit and fittingly extending through the rotary core and the rotary shaft such that when the rotary shaft rotates, the rotary core rotates accordingly, thereby to motivate the latch to extend or retract. The drive device includes a motor for driving a worm via a group of gears. The worm is use for driving a furcated component to move linearly. The furcated component has a rack engaging with a driven gear which is secured with the rotary shaft.

Abstract: The present invention provides a novel method for selectively dispensing inventoried items, such as pharmaceutical and therapeutic agents in a hospital.

Abstract: A motor vehicle door lock system including a vehicle lock adapted to be locked and unlocked, a lock element adapted to be moved between a locked position and an unlocked position for locking and unlocking respectively the vehicle lock, a central interlock drive having a slow running drive element for moving the lock element, a remote control module, control electronics with a passive entry function to at least passively unlock the vehicle lock, and a high-speed electromagnetic drive for rapidly moving the lock element from the locked position to the unlocked position to thereby unlock the vehicle lock quicker than by operating the drive element. The passive unlocking of the vehicle lock occurs over time requiring a reaction phase with a starting interval, an authorization check interval, and an action interval, the starting interval being initiated by an operator.

Abstract: In an electric door lock, a spindle with a manually operable rotary knob is connected operably to a dead bolt, and has a spindle coupling plate sleeved non-rotatably thereon, and a gear plate unit sleeved rotatably thereon. The spindle coupling plate is provided with a ball member which is biased to project from the spindle coupling plate and engage one of a plurality of angularly displaced ball recesses formed in the gear plate unit. An electric driving motor has a transmission shaft engaging the gear plate unit. The ball member disengages the spindle coupling plate from the gear plate unit when the rotary knob is operated to rotate the spindle and the spindle coupling plate. The motor is operable to rotate the gear plate unit which rotates the spindle coupling plate by virtue of the engagement between the ball member and the ball recesses, thereby resulting in co-rotation of the spindle.

Abstract: In an electric door lock, a spindle with a manually operable rotary knob is connected operably to a deadbolt, and has a spindle coupling ring sleeved co-rotatably thereon, and a rotary seat sleeved rotatably thereon. The rotary seat has a clutch portion which is surrounded by a stationary seat and which is provided with angularly displaced resilient locking units that normally engage the stationary seat, and is disengaged from the stationary seat to permit operation of the rotary knob to rotate the spindle. An electric driving motor has a transmission shaft coupled to the rotary seat. The locking units are disengaged from the stationary seat and engage the spindle coupling ring when the motor is operated to rotate the rotary seat, thereby resulting in co-rotation of the spindle.

Abstract: An electronic lock comprises a control structure having a threaded sleeve which is fitted into an actuating ring and an insertion seat. The actuating ring is provided with an outer projection having a retaining slot. The outer projection is received in the insertion slide slot of the insertion seat. The threaded sleeve is fastened with an inner sleeve seat in which a motor is mounted. The motor has a threaded shaft which is engaged with the threaded sleeve. The inner sleeve seat is fastened with the external side of a door such that the insertion slot of the insertion seat is fitted over the lock core. The inner sleeve seat is fitted into an outer sleeve seat having a plurality of retaining teeth.

Abstract: An electronic chip functioned lock whose tongue piece revolving mechanism is either manually operatable with a mechanical key, or by an electronic chip attached key. The lock mechanism is connected to a computer for reading input information to confirm the code stored in the chip so as to avoid unauthorized entry, and to amend, store, or erase the data in case of need. The computer can further be interconnected to a local security system.