Abstract: Safety device to be mounted on a parallelepipedic box comprises a frame (10) constructed to encircle the box and having an insert opening (11) for the box and a blocking element (13) displaceably and pivotably mounted to the frame, the blocking element being adjustable between a blocking position and an off position to prevent in the blocking position the box inserted into the frame from being withdrawn from the frame. A spring blade (22) clamped at one end thereof in the blocking element extends in the displacement path of the blocking element to engage at the other, free end thereof behind a shoulder (25) on the frame and thus to prevent displacement of the blocking element in the blocking position, wherein positive engagement is established between the blocking element and the frame in order to prevent the blocking element from pivoting.

Abstract: In a door locking system of the type having a security mechanism for locking a locking button when a lock cylinder is locked, a switch lever is installed on a lock cylinder main body for rotation therewith, and an operating force transmitting lever is rotatably installed on the lock cylinder main body and operatively connected to the locking button. The switch lever and the operating force transmitting lever are connected in such a manner as to allow, when the lock cylinder main body is rotated from a locking position to a security mechanism unlocking position, the switch lever to rotate relative to the operating force transmitting lever. When the switch lever is rotated into the security mechanism unlocking position, the security mechanism is electrically or electromagnetically actuated to unlock the locking button.

Abstract: A lock for the ignition circuit for an automobile including a Hall effect control sensor which is activated by a control magnet on the cylinder member of the lock so that when the cylinder is rotated by the key to its start position, the control sensor is activated. The activation of the control sensor provides one of several starting criteria to an ignition for starting an automobile. An anti-tampering sensor spaced from and adjacent to the control sensor has a trip level which is lower than the trip level of the control sensor so that magnetic forces induced from the exterior of the lock cannot trip the control sensor. A blocking plate is disposed between the control sensor and the anti-tampering sensor to prevent the anti-tampering sensor from being tripped by the control magnet when the cylinder member is rotated to its start position and to enable the anti-tampering sensor to be tripped first to produce a deactivation signal in response to a magnetic force induced from the exterior of the lock.

Abstract: A locking/unlocking state confirming device includes a drive magnet formed of at least a pair of permanent magnets and a key provided with a key bow. A magnet holding chamber is formed within the key bow. An indicator magnet within the chamber is magnetized in a direction at a right angle relative to a center axis thereof and has first and second outer peripheral surfaces painted different colors. A viewing window is open to the chamber at at least one side surface of the key bow. A holding plate is disposed within the key bow at a location rearwardly of the magnet holding chamber.

Abstract: A closure system composed of a lock and several keys in which the closing of the lock, determined by magnetically controlled tumblers can be modified by a repositioning of at least one tumbler member within the lock to the code of a subsequent key, and in order to obtain a solution which is particularly advantageous with respect to construction and security, the tumbler member (33, 33') is developed as an adjusting part associated with the recoding magnet (42, 43, 44, 45, 46, 48, 49) in such a manner that the tumbler insertion opening (40, 50, 51) for the recoding magnet can be displaced out of the aligned position with respect to the recoding magnet.

Abstract: A lock assembly for locking a door to a frame element, comprising a rotatable locking element and a locking rod connected to the rotatable locking element. Rotation of the locking element in one sense results in the locking rod moving toward a first side of the frame element and rotation in the other sense results in the locking rod moving away from the first side of the frame element. The lock assembly also comprises a pin having a first end and a second end, wherein the first end selectively engages the rotatable locking element at an engagement position so that the locking element is prevented from rotating. The lock assembly comprises a pin actuating mechanism for moving the pin from the engaged position to a disengaged position wherein the pin does not engage the locking element.

Abstract: A magnetic lock has a latch magnet positioned on a pivotal latch. An axial section of the pivotal latch is attached pivotally to a latch housing at a latch axis. The latch housing is attached to an inside of a compartment closure that is closeable against a frame to which a latch plate is attached. A plate-contact end of the pivotal latch is extended outward radially from the axial section of the pivotal latch. An axial-end magnetic pole of the latch magnet is positioned proximate the axial section of the pivotal latch. An actuation-end magnetic pole of the latch magnet is positioned proximate the plate-contact end of the pivotal latch. A reset magnet is positioned on the latch housing at an opposite side of the latch axis from a latch-plate side of the pivotal latch. Magnetic poles of the reset magnet are positioned in like-pole-to-like-pole relationship to the latch magnet, such that the reset magnet repels the latch magnet to actuate the pivotal latch in a direction of engagement with the latch plate.

Abstract: 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. A first end of the fence lever is pivotally attached to the bolt, and a second end of the fence lever has a dog which is engagable with a slot in the outer periphery of the cam driver. The cam driver is keyed to the drive shaft and holds two circumferentially spaced permanent magnets, one on each side of the slot. The dog portion of the fence lever also has a permanent magnet mounted thereon. The permanent magnets mounted on the cam driver and on the dog portion of the fence lever are arranged such that opposing magnetic poles generate a repulsive force as the fence lever approaches both sides of the slot in the cam driver.

Abstract: A dead bolt includes an outer lever and an inner lever, a coil disposed in the outer lever, a rod slidably engaged in the coil and having two extensions, a shaft coupled between the two levers, a disc engaged on the shaft and having two grooves for engaging with the extensions of the rod, the extensions of the rod are biased away from the grooves of the disc such that the shaft can not be rotated by the outer lever, and the rod is caused to move toward the disc when the coil is energized such that the extensions of the rod are caused to engage with the grooves of the disc and such that the shaft can be rotated by the outer lever.

Abstract: A power actuator used in combination with a motor-vehicle door latch movable between a locked and unlocked position has a housing, a reversible electric motor in the housing having a rotatable output shaft defining an axis, and an input gear on the shaft. A threaded output spindle spaced from the shaft in the housing carries an output gear out of mesh and out of engagement with the input gear. A nut is threaded on the spindle. An actuating element couples the nut with the latch to switch it between its positions. A support pivotal in the housing about the axis carries a pair of coupling gears in mesh with and flanking the input gear. The support is rockable about the axis from a central position in which neither of the coupling gears meshes with the output gear into a pair of end positions in each of which a respective one of the coupling gears meshes with the output gear and couples same to the input gear.

Abstract: A cylinder lock device (10) includes a lever (15) rotatably disposed between a casing (11) and a key cylinder (13), and a blocking member (17) disposed within a notch (16) formed in the lever (15). A concavity (18) are formed on an inner wall of the casing (11), and a chamfer (19) is formed on the key cylinder (13). When the lever (15) is in the locked position and the key cylinder (13) is further rotated to the dead-locked position over the locked position, the blocking member (17) moves away from the chamfer (19) of the key cylinder (13) and into the concavity (18) of the casing (11). When the key is pulled out from the key cylinder in the dead-locked position, the locking device is forcibly maintained in the locked position to prevent unauthorized unlocking.

Abstract: A lock device includes a lock body with a lock shell, a key plug received in the lock shell, and an anti-dusting cover assembly secured on a front end of the lock shell. The key plug has a front end which is formed with a recess that has an end wall which is formed with a keyhole. The cover assembly includes a cover plate with a key slot that is aligned with the keyhole, and an anti-dusting plate mounted pivotally to a rear wall surface of the cover plate. A magnet is mounted on a rear wall surface of the anti-dusting plate. A magnetic conductor is provided on the front end of the key plug in a pivoting direction of the anti-dusting plate. A magnetic reed switch is provided on the lock shell and is normally disposed adjacent to the magnetic conductor. The magnetic reed switch is activated by the magnet via the magnetic conductor when the anti-dusting plate pivots rearwardly to locate the magnet adjacent to the magnetic conductor due to insertion of an article into the keyhole of the key plug.

Abstract: A magnetic key operated lock has code changing magnet pins 108a, 110a, 112a and 114 a mounted in rotatable carriers 104 and 106 in a slide member 6. Spurious rotation of the carriers is prevented by a spring biassed bar 400 which is only released by keys, coded as code changing keys, when they are fully inserted and pressed against an end 403 of the bar 400 and by carriers 104 and 106 held against rotational movement by one or more of the above pins entering blind bores; the pins also acted upon by such keys in the slide member 6 when they are fully inserted.

Abstract: An apparatus for controlling a primary actuator comprises a primary moveable link connected to the primary actuator, a secondary actuator, and a secondary moveable link connected to the secondary actuator. The secondary moveable link is engageable and disengageable with the primary moveable link and the primary and secondary links are guided for movement along a predefined path. The user of the apparatus is able to control the engagement and disengagement of the primary and secondary links such that movement of the secondary actuator is transferred to the primary actuator when the links are engaged and such that movement of the secondary actuator is not transferred to the primary actuator when the links are disengaged.

Abstract: The invention concerns a lock system for a door, wall, chest, safe or cupboard, etc. The lock system is covered by a cover plate and has a bolt or pin which is linked to a main lever, designed to rotate about a pivot bearing, and which operates in conjunction with a holder plate or bolt. Rotation of the main lever depends on the motion of a first magnetic block mounted on the cover plate. The main lever has at least one bore designed to accommodate at least one locking pin associated with a second magnetic block mounted on the cover plate. The second magnetic block is designed to unlock the lock by pulling the locking pins out of the bores.

Abstract: In a magnetic key operated lock, a slide member carries a plurality of wheels in which are mounted magnetic pins. The position of the pins forms part of a code of the lock. The wheels are caused to rotate by insertion of a code changing key, which has a code for unlocking the lock, and moving the slide member. As the slide member moves, one of the pins which is repelled by the particular code changing key abuts a stop, which thus causes the respective wheel, and so the other wheels, to rotate. By having wheels of two different diameters, the smaller wheels can be made to rotate more than once before a code is repeated. The stops are formed by pressing a tang from a stationary wall in the lock.

Abstract: To assure that door locking can reliably be achieved, two permanent magnets are arranged for a locking device. One of the permanent magnets, i.e., a first permanent magnet is carried on one end of a trigger member of which central part is turnably supported in a lock box, while the other one, i.e., a second permanent magnet is disposed on a door frame at the position located in alignment with the first permanent magnet when a door is closed. The magnetic pole of the first permanent magnet is coincident with that of the second permanent magnet. When the door is closed, the first permanent magnet is displaced away from the second permanent magnet by the magnetic repulsive force appearing between both the permanent magnets, causing the trigger member to be disengaged from an engagement lever made integral with a control gear, resulting in the dead bolt becoming operatively free.

Abstract: The present invention relates to a magnetic card lock with key card which can be inserted into an insertion shaft with gripping opening, the key card being first insertable up to a first stop position, and in which position the key code is requested, and thereupon displaceable by an actuation distance up into the second stop position; in order to obtain a solution which is particularly easily manipulated, it proposes that the broad surface of the key card on its end facing away from the direction of insertion have a visibly differentiated first partial surface (100) which fills up the surface of the gripping opening (107) and is visible in the second stop position.

Abstract: An object of this invention is to provide a key cylinder device which is simple in structure and is able to positively detect the presence or absence of the key. In a key cylinder device, a key cylinder body incorporates a rotor having a key inserting inlet, and a shutter made of a magnetic material is swingably mounted in the rotor to open and close the key inserting inlet, the shutter being urged by a spring to close the key inserting inlet. When the shutter is held closed, the magnetic force of a permanent magnet acts on a normally closed lead switch to hold the switch open. When the shutter is swung open by the key being inserted into the key inserting inlet, it covers the permanent magnet, thus interrupting the action of the magnetic force of the permanent magnet on the lead switch. As a result, the reed switch closes.

Abstract: A security apparatus for attaching a portable unit to be protected to a supporting surface. The security apparatus includes a normally deactivated passive locking unit, which is activated by an electronic key unit, which is portable and moved adjacent to the passive locking unit to power it. The key unit includes a device for coupling electromagnetically the key and the locking units to transmit electrical power therebetween. A magnet is concealed within the security device to activate the electronic key, only when it is placed in the proper position relative thereto. Additionally, a mechanical arrangement for a locking pin is employed to further provide a level of sophistication before the actual unlocking of the device occurs.

Abstract: A lock with locking function released by inserting a key card with a magnetized region, in which the end edge (8') of the key card (8) drives a slide (25) which is released by the magnetic tumbler pins (31). There is at least one member which is displaceable by the movement of the slide, one end of the member scanning a profile of the key card (8). The member comprises a pin (62) which is tapered on both ends, the pin being displaceable parallel to the tumbler pins (31) in a borehole (61) in the slide (25) within a region which is free of the magnetic tumbler pins (31).

Abstract: 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 magnet is positioned to attempt to open the lock, the magnetic pin is attracted from the holding magnet and extended to bridge the bolt and lock housing, blocking the retraction of the bolt.

Abstract: In a magnetic key operated lock, a slide member carries a plurality of wheels in which are mounted magnetic pins. The position of the pins forms part of a code of the lock. The wheels are caused to rotate by insertion of a code changing key, which has a code for unlocking the lock, and moving the slide member. As the slide member moves, one of the pins which is repelled by the particular code changing key abuts a stop, which thus causes the respective wheel, and so the other wheels, to rotate. By having wheels of two different diameters, the smaller wheels can be made to rotate more than once before a code is repeated. The stops are formed by pressing a tang from a stationary wall in the lock.

Abstract: In a preferred embodiment, a method of limiting access to computer systems which method includes scrambling identification card information with time information so that the resulting code can be used for only a limited period of time, thus preventing unauthorized persons from using the code at a later time. In another aspect of the invention, one or more .mu.-metal shields are embedded in an identification card, thus identifying the card as being valid and also providing means to indicate when a valid card is being removed from a card reader.

Abstract: A lock for the ignition circuit of an automobile is disclosed. The lock includes a Hall effect sensor element which is activated by a control magnet on the cylinder member of the lock so that when the cylinder is rotated by a key to its start position the Hall effect sensor element is activated. The activation of the sensor element provides one of several starting criteria to an ignition circuit for starting an automobile. An anti-tampering magnet on the cylinder member lies directly under the sensor element in the off position and biases the Hall effect sensor element to its off position so hard that other magnetic forces induced from the exterior of the lock cannot overcome the bias and activate the sensor.

Abstract: A magnet card type lock includes an outer case, a slider having a key hole slit formed therein, an engagement member firmly secured to the outer case, a plurality of tumbler holes formed in conformity with a predetermined pattern of arrangement, a plurality of magnet tumblers bridged between the case and the slider, a projection integrated with the slider to be engaged with a locking mechanism and a magnet card adapted to be inserted into the key hole slit of the slider to serve as a fellow key. To prepare a specific key difference among a number of magnet card type locks, a predetermined number of tumbler holes are selected from the tumbler holes which extend at a substantially right angle relative to the slider and the outer case. The magnet card is formed with a pluraltiy of apertures some of which are immovably filled with permanent magnets corresponding to the selected number of tumbler holes.

Abstract: A remote controlled automobile and motorcycle lock comprising a U-shaped lock body, a U-shaped hook rod combined with the lock body to be locked therein, an electronic device mounted on a panel fixed inside the lock body, a remote electronic controller to transmit a signal to operate the electronic device to allow the U-shaped hook rod be pulled out of the lock body for unlocking this lock, and an elongated rod screwing with a female threaded post at a rear end of the lock body to hook with brake pedal so as to fix this lock on a part of a steering wheel of an automobile to lock it.

Abstract: A card lock and a punchable key card having a key card having through holes in the coordinating locatins to and the same number as long pin tumblers provided in a card lock for unlocking the lock without electric power, and a card lock having a plurality of pin tumblers--some long and some short mixed regularly or irregularly--and a dead bolt mover having through holes for the pin tumblers to fit and move is disclosed. The key card functions to push up the short pin tumblers to make the upper ends of all the pin tumblers become positioned in the same level as the upper surface of the dead bolt mover so that the dead bolt mover can be pushed further inward from the locked position to the unlocked position by the key card to retract the dead bolt to unlock the card lock.

Abstract: A magnetic latchkey for an access-control lock with a series of magnets fastened to sliding pieces capable of being displaced by means of levers or extensions so that each magnet has three possible positions: north pole, south pole, or a point intermediate to both. This allows the magnet to be moved in front of the appropriate sensor of the lock, in such a way that when there is a particular combination of poles in the latchkey and the same combination of switches on the control panel, in touch with the position of the switches at the control panel will be identical to the positions of the levers of the latchkey. An alternative is for each magnet of the latchkey to have two sensors inside the lock.

Abstract: A key composed of a body with recesses which can be filled with magnetized disks, arranged in a combination of norths and/or souths and/or lack thereof, and with a sliding lid holding the magnetic disks in the recesses. The lock has one or two sets of magnetic sensors geometrically ordered according to the refillable recesses. When the key is placed adjacent to the series of magnetic lock sensors, the sensors detect the magnetized disks, pass the detected signal to a conventional converter-codifier circuit that generates a code that is sent, by cable or radio, to a station which interprets the code and, if correct, allows access.

Abstract: A magnetically operated latch includes one or two latching members, the or each member including a permanent magnet and being turnable or slidable between an engaging position and a disengaged position, and a further member of a magnetically soft material which attracts the magnet(s) to displace the latching member(s) into the engaging position(s). To disengage the latching member(s) a further magnet is brought to a position in which it acts repulsively on the permanent magnet(s) by way of the further member.

Abstract: A lock device which includes a permanent magnetic key, a rotary circular cylinder having a key aperture, a plurality of main apertures which each contain a main locking pin with a main coil spring and permanent magnet, respectively, and a tubular cylinder having a plurality of auxiliary apertures for mating with the main apertures which contain an auxiliary locking pin with an auxiliary spring, respectively, whereby in a locked position, the auxiliary locking pins are located between the rotary circular and tubular cylinders, and in an unlocked position, when the permanent magnetic key is inserted into the key aperture, the auxiliary locking pins and the permanent magnets are moved to the tubular and rotary circular cylinders, respectively, so that the lock device is unlocked.

Abstract: The invention refers to a system for the use of locks of hotel room doors, lockers of bathhouses or similar facilities, having a central delivery station located in the region of an entrance station of the hotel, bathhouse or the like for the issuance of locking elements (keys) each of which fits a given lock of the different doors, lockers or the like, and a locking-element return device which is located in the region of an exit station and scans the locking element and evaluates it, for instance, with respect to a change for use, said return device being connected for data to the delivery station, and in order to obtain optimum handling, it proposes that the locking element bear an additional code (for instance a bar code) in order to trace its path of use.

Abstract: A closure system consists of lock and several keys in which the closing of the lock, determined by mechanically or magnetically controllable tumblers, is variable in such a manner that a closure code of the lock which corresponds initially to the coding of the first key can be varied by rearrangement of at least one tumbler element (28) within the lock, in response to the coding of a successor key. This negates need for a tool or hand knob. Displacement of the tumbler element (28) be effected by means of the corresponding successor key (36) in the manner that successor keys (36) are divided into a first region (A) associated exclusively with a closure code of the tumblers and a second supplementation region E which enters into action when the first region agrees with the closure code of the tumblers. This shifts the tumbler element (28) into the position acted on by the supplementation region of the next successor key.

Abstract: An apparatus for releasing locked components of a theft-deterrent device includes a seat for receiving a component of the theft deterrent device that contains a clutch and a ferromagnetic anvil that is positioned by a spring to force the clutch to apply pressure against an inserted pin that is anchored in another component of the device so as to restrain the pin from release from the clutch; and a magnet with a pole piece coupled thereto, with the magnet and the pole piece being disposed for movement between a protracted position and a retracted position. When magnet and the pole piece are in their protracted position the pole piece is disposed about the sides of the clutch-containing component and applies magnetic flux from the magnet that is directed to overcome the force of the spring and reposition the ferromagnetic anvil to thereby relax the pressure applied against the pin by the clutch so that the pin-anchoring component can be released from the clutch-containing component.

Abstract: An electronic locking device consisting of a lock and key cards and the lock electronics of which has a data storage and which can be coupled with a mobile printer which can be connected to the lock electronics and retrieve data, the locking device having an insert shaft for the key cards in which shaft a card reader is arranged and which shaft is provided at its end with a socket device connected to the lock electronics for a card-shaped coupling element of the printer which can be inserted into the insert shaft and has electrical contacts.

Abstract: A lock cylinder suitable for mortise locks comprises mechanically operating tumbler pins controlled by a key and at least one electromagnetic tumbler. The cylinder is arranged in a cylinder casing and comprises a coil as well as a locking member which can be displaced by electromagnetic forces for an additional tumbler pin which is spring-loaded in the locking direction and with a reading device which detects a key code. The locking member is pivotally mounted in a recess in the additional tumbler pin and enters the locking position in front of a stop on the cylinder casing.

Abstract: The invention relates to a magnetic-card operated mechanism for closing and opening safes and to safes embodying it. The mechanism is powered by batteries and comprises means for reading a magnetic card, an electronic activating circuit and a locking mechanism, and is provided with electronic means for permanently storing information, with means for changing the power drawn from the batteries between at least one high level and one low level, with means for checking the correctness of the card code and of its reading, and with means for enabling the card to actuate the mechanism only if the result of the check is positive. The mechanism comprises an electrically actuated locking device powered by an electric motor and may also comprise additional manual locking means, which are blocked in the locking position or are released therefrom by the electrically actuated device.

Abstract: A magnetically releasable pin lock which comprises catch elements mounted to pivot about axes perpendicular to and displaced from the pin axis and elongated magnetizable actuation elements which extend from the catch elements along the pin axis to be acted upon by applied magnetic decoupling fields and to move in response to such fields to pivot the catch elements and release the pin.

Abstract: This lock, which may be coded-keycard operated, has a set-table device on the inside of the door by which the maid, for instance, can be locked out. The lockout setting device is preferably in the form of a pushbutton or deadbolt turnpiece which manipulates a switch in the code-receiving circuitry. The lockout setting is automatically cancelled when the latch is retracted. When the setting device comprises a deadbolt turnpiece, the deadbolt is biased toward retracted position and the setting device holds the deadbolt extended. When the latch is retracted in the latter version, the retraction cancels the lockout setting and permits the deadbolt to retract under the power of the deadbolt biasing spring.The invention also includes a non-code-operated embodiment in which a deadbolt is spriing driven to retracted position as the latch is retracted in latching to protect the deadbolt, lock and door frame.

Abstract: A novel locking mechanism and specific applications for same are disclosed. One aspect of the invention provides a product security system having a locking mechanism for preventing sliding movement between a slidably juxtaposed product container and product container locking structure, and a separate decoupling unit. The decoupling unit has a frame adapted to receive the slideably juxtaposed parts, and means within the frame adapted to disengage the locking mechanism, thereby permitting sliding decoupling of the parts. The locking mechanism has a magnetically attractable pin in a blind hole in the first part and a detent opening or recess in the second part. The pin is moveable between a first position in which the pin enters the detent, thereby preventing sliding movement between the first and second parts, and a second position in which the pin is retracted into the blind hole from the detent, thereby permitting sliding movement. Means are provided for biasing the pin into the first position.

Abstract: A device for confirming whether a lock is locked or unlocked in which a display magnet consisting of a sheet- or plate-like permanent magnet is rotatably disposed within a key head. Two magnet pairs, each consisting of a first drive magnet, and a second drive magnet are located at angular positions, respectively, on the front end face of a cylinder lock at opposite sides, respectively, of an intermediate angular position within a range of rotation of a key for locking and unlocking the cylinder lock. The direction of magnetization of one magnet pair is opposite to that of the other magnet pair.

Abstract: A locking device includes a lock and key and has tumblers which can be brought by a key into a release position, and provides, in particular, for a large number of closing combinations, that at least one of the tumblers can be brought, in addition or alternatively to its direct control by the base code of the corresponding key, by means of a magnet coil into a release position. The coil is energizable by a reading device which detects at least one supplementary code of the key.

Abstract: There is provided a lock with a locking function of a bolt to be released by the inserting of a coded card scanned in the lock, and carried out by means of a key, in particular for use in safety deposit boxes or compartments of public swimming pools or the like with an outwardly open card insertion shaft on the casing of the lock. For the purpose of obtaining a lock design that is easy to use and that excludes operating errors and which is safely protected against misuse, a locking repeat barrier is utilized that is associated with the bolt and actuated by the locking movement of the bolt even with the card inserted in the lock.

Abstract: Relative movement of members (10,11) of a lock is normally obstructed by an element (14) which can be moved by a solenoid (18) entirely into a recess in one of the members so that the one (11) and the obstructing element (14) can turn together relative to the other member (10) and solenoid. The arrangement may be used to prevent turning of a key-receiving member relative to a housing or as a clutch between two members mounted rotatably in a housing.

Abstract: The touch bar release locking system includes a hollow metal channel which affixes to a door at two points via insulating spacer blocks. Within the channel is housed a capacitive sensor which functions by detecting the additional capacitance coupled to the hollow channel by the act of a person touching it (even through gloves or clothing). When the additional capacitance is detected, a relay energizes and actuation of the relay contacts releases an electric lock which had been securing the door, thereby providing free egress. In the event of catastrophic sensor failure, egress can still be accomplished by pressing an electromechanical push button, mounted on the rear of the hollow channel, which duplicates the effect of energization of the sensor relay.

Abstract: A method for clearing unlocking key codes in an electronic locking device in which the unlocking circuit is arranged to be actuated when the code of a magnetic card read by the card reader agrees with an unlocking key code set in the memory, the method comprising using a first clearing card which will function only when the door associated with the locking device is open and a second clearing card which will function only when the door is closed, setting the codes of the first and second clearing cards in specified separate addresses in the memory in the code setting mode for setting the codes of the clearing cards in the processing unit (CPU) of the electronic locking device, determining whether the door is open or closed in the normal operation mode of the CPU, and clearing the unlocking key codes only when the code read by the card reader is identical to the code of the first clearing card set in the above-mentioned manner and the door is open, or when the code read by the card reader is identical to the c

Abstract: A non-commutated linear motor particularly suitable for use as an electric door lock actuator for an automobile is disclosed. The linear motor may include a series of cup-shaped portions each having a winding appropriately connected to provide the desired travel stroke, in a direction determined by polarity of D.C. power applied to the winding, and power for the linear motor or a segmented armature designed to achieve the same flexibility in motor design and assembly.

Abstract: The invention adapts to an electronic lock comprising a housing, and a plug supported for rotation within the housing and having a keyway to receive the blade of a key which rotates the plug during operation of the locking apparatus. A locking member is movable into engagement with the plug to prevent the movement of the plug and the operation of the locking apparatus and movable out of engagement with the plug to allow the rotation of the plug and the operation of the locking apparatus. A solenoid having a core coupled to the locking member moves the locking member into and out of engagement with the plug. A permanent magnet is movable between a first position to receive and hold the solenoid core to maintain the locking member out of engagement with the plug, and a second position to release the solenoid core, and a driving means moves the magnet in at least one direction between the first and second positions.

Abstract: A device for selectively locking a door in a closed position against a door frame member having a body with a substantially planar mounting surface for engaging the face of the door and a throughbore in the body substantially parallel to the mounting surface. A mounting mechanism included for coupling the body to the door. A magnetic bolt is disposed within the throughbore for slidable movement between a retracted position and an extended position wherein a portion of the bolt extends outwardly from the body when in the extended position. A retainer is included for limiting the travel of the bolt between the retracted and extended positions. A striker is mounted to the door frame member for engaging the bolt in the extended position so as to secure the door against the door frame member in the closed position.