Abstract: A dual key lock core and a key lock core assembly using the same are provided. The dual key lock core of the present invention includes a lock core rod, a driving rod, and an outer barrel. The lock core rod includes a wedging part and an inner barrel disposed at opposite ends. The inner barrel has a hollow guiding groove, an inner barrel protrusion, and a first lock structure. The driving rod is rotatably capped within the inner barrel. One end of the outer surface of the driving rod has a driving protrusion. The other end of the outer surface of the driving rod has a second lock structure. The driving protrusion is in and movable along the hollow guiding groove when the driving rod is capped within the inner barrel.

Abstract: A tubular lock and its operating key have safety features that render the lock and key well suited for use with food freezer appliances and the like where the keyway of the lock extends horizontally. The tubular portion of the operating key, and the keyway of the tubular lock are cooperatively configured so a key inserted into the keyway of the lock fits quite loosely and is minimally supported even when fully inserted. The graspable bow of the operating key is made unusually long causing the center of gravity of an inserted operating key to be spaced far from the front face of the lock—so the weight of the loosely fitting and minimally supported operating key levers the graspable bow downwardly, causing the key to drop from the keyway unless being held in the keyway. Gravity is optimally used to effect key ejection.

Abstract: A system for activating a predetermined set of vehicle features on a vehicle is provided. The system comprises a valet keyfob in wireless communication with the vehicle and configured to activate the predetermined set of vehicle features when enabled, and a first processor coupled to the vehicle and configured to enable the valet keyfob to activate the predetermined set of vehicle features.

Abstract: A latching system 1 has a housing 3 provided with a recess 5 in which a part of the bicycle can be inserted, preferably a frame tube sloping upwards. In the housing 3 a latching element 7 is located which can be moved between a release position in which the latching element opens the recess and a latching position in which the latching element closes the recess. The latching system 1 further comprises a key 19 that is positioned in an opening 21 in the housing 3 and is pushed out of the housing when the latching element is moved from the latching position to the release position. To this end the latching element 7 is equipped with an arm 23 which is fitted to the U-shaped part of the housing. When the latching element 7 turns to the release position, one end 25 of the arm 23 pushes against the key 19 causing it it be pushed out of the opening 21.

Abstract: A valet key storage device includes a valet key storage portion for storing a valet key on which an engaging portion is formed, a locking portion provided with a locking mechanism for locking an ejection of the valet key by engaging with the engaging portion of the valet key, a key cylinder conducting a release operation of the locking mechanism by a mechanical key, and a control section for controlling an unlocking operation of the locking portion based on a release operation of an immobilizing function and the key cylinder by the mechanical key.

Abstract: A valet key storage device, includes a valet key storage portion for storing a valet key having an opening, a locking bar for locking the valet key, a driving section for driving the locking bar to be inserted into the opening of the valet key, and a control section for controlling the driving section to insert the locking bar into the opening of the valet key or remove the locking bar therefrom.

Abstract: A valet key storage device, includes a valet key storage portion for storing a valet key having an opening, a locking bar for locking the valet key, a driving member for driving the locking bar to be inserted into the opening of the valet key, a locking pin for locking the locking bar, a driving section for driving the locking pin to lock the locking bar; and a control section for controlling the driving section to plunge or remove the locking pin into or from the locking bar.

Abstract: A slot device for holding a portable device that communicates with a controller installed in a vehicle. The slot device includes a retainer for retaining the portable device, a shutter for closing the retainer, and a spring received in a spring receptacle for urging the shutter to close the retainer. The spring is supported in an inclined state to contact the inner surface of the spring receptacle and prevent vibrations and noise.

Abstract: A method of multiplexing a plurality of data flows into a single output using hierarchical gating operations instead of queues is disclosed. In the preferred embodiment, the hierarchical multiplexing method comprises sequentially processing a packet at each of a plurality of hierarchical levels by characterizing the flow at each hierarchical level and either passing or discarding the packet. The decision whether to pass or discard a packet is generally made for each packet at one or more hierarchical levels based on traffic parameters and the state of the system such as congestion. In the preferred embodiment, a Three Color Marker algorithm is used to characterize the flow and mark packets subjecting to the discard decision. The invention may be used by a router or multi-layer switch to process multiple data flows in a hierarchical fashion without hierarchical queues, thereby reducing processing and memory requirements.

Abstract: A slot mechanism having an accommodation space into which an insertion object is inserted through a slot. The slot mechanism includes a shutter located in the accommodation space. The shutter is movable along an insertion direction of the insertion object. When the insertion object is inserted into the accommodation space, the shutter is pressed by the insertion object and moved toward the back of the accommodation space. When the insertion object is removed from the accommodation space, the shutter is moved toward the slot to close the slot. The shutter has a guiding portion that stabilizes the attitude of the insertion object when the insertion object is pressed against the shutter.

Abstract: A system and apparatus for controlling keys or other objects is provided. The key can only be removed when an access control key identifying the individual who is removing the key is inserted. The access control key cannot be removed until the key is returned.

Abstract: A lock core with a related key includes a core body and a housing and a related key. The related key is inserted in a keyhole of the core body and pushed inward to push a stop plate inward in the keyhole at the same time, with projecting ridges of the key moving inward together with engage shafts until projecting members align with an annular groove of the housing. Then the core body can be rotated to be unlocked. When the key is pulled out of the core body, the engage shafts and the stop plate return to their original positions by the springs to lock the core body. Thus the stop plate normally closes up the keyhole, preventing dirt and miscellaneous matters from entering the keyhole. Any matters or even broken key parts may be sprung out of the keyhole by the stop plate, with the keyhole never clogged.

Abstract: A key operated switch is provided for disabling an automobile air bag passive restraint system. The two or four position switch includes a housing, a rotor, a plurality of rotationally actuated electrical switch elements, a key ejecting mechanism, and a positive positioning detent. The switch assembly is arranged such that a transverse surface of the rotor defining a key slot is accessible through the housing. The key slot allows an operating key to be manually inserted into the rotor. In or order to insert the key, however, the therein, a certain minimum amount of force must be applied to the key sufficient to overcome the key ejecting mechanism. In the absence of such minimum insertion force, the key ejecting mechanism will act expel the key from the rotor. Once inserted into the rotor, the key may be manually rotated which causes corresponding rotation of the rotor.

Abstract: A magnetic lock assembly includes a magnetic lock cylinder for actuating a latch assembly, wherein the magnetic lock cylinder including a lock sleeve having an axial rotor hole and a plurality of tumbler sockets radially distributed on an inner surface of the lock sleeve; a plurality of magnet tumblers, each of which has a north pole and a south at two ends respectively, being coaxially placed in the tumbler sockets respectively; a tubular lock rotor being rotatably and coaxially fitted in the axial rotor hole of the lock sleeve, the lock rotor having an axial through hole and a plurality of locking holes radially distributed through a rotor wall thereof; a locker tube being fittedly disposed inside the axial through hole of the lock rotor to define a keyway therethrough; a magnetic key including a round key body having a plurality of magnet sockets provided around the key body corresponding to the axial and radial positions of the magnet tumblers in the magnetic lock cylinder respectively, and a plurality of

Abstract: A key management device, comprising a housing member; an access key; a mechanism for locking a key ring to the housing member and releasing the access key when the locking mechanism is in a first position, and for locking the access key to the housing member and releasing the key ring when the locking mechanism is in a second position; wherein the locking mechanism comprises a first member which is movable between the first position in which the key ring is locked to the housing by the first member and the second position in which the key ring is unlocked therefrom, and a second member which is connected to the first member, wherein when the locking mechanism is in the first position the second member releases the access key from the housing member and when the first member is in the second position the second member locks the access key to the housing; and wherein the access key is slidingly received by the housing member and engages with the first member such that insertion of the access key within the hous

Abstract: A master key board device for the retention, protection, and control of keys. The device is preferably wall mountable, having a face plate containing slots for a desired number of keys. Each key slot has an associated locking device which is controlled by a universal key. The locking device carries an arm which engages specially modified keys to retain them in the key board, and releases them to persons having the proper universal key, but retains the universal key, so that keys can be removed from only one slot by each universal key.

Abstract: Apparatus for arming and disarming a vehicle alarm in response to locking and unlocking of an entranceway to the vehicle has a cylinder mounted in the housing and adapted to be rotated relative thereto by the turning of a key inserted therein in one direction for locking said entranceway and the opposite direction for unlocking said entranceway. A slidable member signals that the alarm has been armed. The alarm is armed and disarmed by the movement of a first cam fixedly mounted on one of the cylinder and the housing and a plurality of switches fixedly mounted on the other of the housing and the cylinder. The first cam engages one of the switches to arm the alarm when the cylinder is rotated to one position and engages another of the switches to disarm the alarm when the cylinder is rotated to another position. A second cam freely mounted in circumscribing relationship to the cylinder rotates upon the turning of said cylinder with an unauthorized key thereby actuating another switch to sound the alarm.

Abstract: In combination with a building door, there is provided a key safe for a door key comprising an open ended housing secured within and projecting through the door. A safe door is hinged to and closes one end of the housing and has a retractable latch bar engageable with the building door to lock the safe door. A combination lock on the safe door includes a normally open printed circuit connected to a power source. A solenoid is connected to the circuit and includes a plunger connected to the latch bar. A tamper proof key tray is nested within the housing and normally spring biased for ejection inwardly of the building door. A first detent assembly is interposed between the safe door and tray so that any forceful opening of the safe door disengages the detent assembly.

Abstract: A lock having a low co-efficient of thermal conductivity for use with appliances having a large thermal differential between their interior and exterior. The lock includes a self-mounting body having an axial bore therethrough, a rotatable latch carrying a plug located in said bore and a constantly axially spring-urged key ejector means which carries locking means cooperating with complementary means in said body.

Abstract: A key ejector lock adapted for use in the door of a cabinet or other enclosure and which will eject the lock key in any rotational position thereof.

Abstract: A key ejector lock adapted for use in the door of a cabinet or other enclosure and which will eject the lock key in any rotational position thereof comprises a tubular barrel, a front end plug rotatable and axially reciprocally movable in the barrel and having a keyway extending therethrough, a rear end plug rotatable in the barrel and adapted for connection to a locking member, drive means interposed between the plugs and fixed to the rear end plug for rotation therewith, means providing a sliding drive connection between the front end plug and the drive means, means resiliently urging the front end plug forwardly in the barrel, means on the barrel providing rearwardly opening circumferentially spaced internal notches, lug means projecting outwardly from the front end plug and removably received in the notches for securing the rear end plug in respective locked and unlocked rotational positions, a key ejector axially reciprocally movable in the barrel between the front end plug and the drive means and engagi

Abstract: A key ejector lock adapted for use in the door of a cabinet or other enclosure and which will eject the lock key in any rotational position thereof comprises a tubular barrel, a front end plug rotatable in the barrel and having a keyway extending therethrough, a rear end plug rotatable in the barrel and adapted for connection to a locking member, rotatable drive means interposed between the plugs for driving the rear end plug, means providing a sliding drive connection between the front end plug and the drive means, one member of the front end plug and the drive means being mounted for axial reciprocal movement in the barrel, means resiliently urging the one member forwardly in the barrel, means on the barrel providing rearwardly opening internal notches, lug means projecting outwardly from the one member and removably received in the notches for securing the rear end plug in respective locked and unlocked rotational positions, a key ejector axially reciprocally movable in the barrel between the front end plu

Abstract: A handle set door lock comprised of an outer assembly with a handle, a thumb piece actuator, a key operated cylinder, a latch bolt and operating mechanism, and a selective control member is disclosed. When the selective control member is in a first position, depression of the thumb piece actuator engages the operating mechanism causing the retraction of the latch bolt. When the selective control member is in a second position, the thumb piece actuator is disengaged from the operating mechanism permitting depression of the thumb piece actuator but without causing retraction of the latch bolt. The latch bolt can always be retracted by the conventional key operated cylinder located on the outer assembly when the selective control member located on the inner knob is in either the first or second position.