Abstract: A dead bolt lock system including a slider member operatively coupled to a dead bolt such that when the slider member is in a first position, the dead bolt is in an extended position. When the slider member is in a second position, the dead bolt is in the retracted position. The system also includes a first movable member positioned in a path of movement of the slider member and configured to be displaced by the slider member to allow the slider member to move to the second position. The system includes a first lock having a first condition preventing the displacement of the first movable member and a second condition allowing the displacement of the first movable member, a second lock having a first condition preventing the displacement of the first movable member and a second condition allowing the displacement of the first movable member.

Abstract: A dead bolt lock system including a slider member operatively coupled to a dead bolt such that when the slider member is in a first position, the dead bolt is in an extended position. When the slider member is in a second position, the dead bolt is in the retracted position. The system also includes a first movable member positioned in a path of movement of the slider member and configured to be displaced by the slider member to allow the slider member to move to the second position. The system includes a first lock having a first condition preventing the displacement of the first movable member and a second condition allowing the displacement of the first movable member, a second lock having a first condition preventing the displacement of the first movable member and a second condition allowing the displacement of the first movable member.

Abstract: In a cylinder lock assembly, a latch operating tube has an enlarged end portion extending into an outer drive tube disposed in an outer handle. A locking spindle is disposed in the latch operating tube and has a locking tongue extending radially and outwardly through the outer drive tube to interlock with an outer rose when the locking spindle is pressed by a push button to move to a locked state. A locking plate is sleeved around the locking spindle and has a radial locking part to engage a protrusion that projects radially and inwardly from an inner surface of the enlarged end portion so that the locking spindle is locked against movements to an unlocked state when the locking spindle is in its locked state.

Abstract: An extendable flush door handle assembly for a door or liftgate of a vehicle includes a base portion and a handle portion movably attached to the base portion. The handle portion is movable between a recessed position, where the handle portion is at least partially received in the base portion, and a partially extended position, where the handle portion extends partially outward from the base portion and is graspable by a user. The handle portion is moved from the recessed position to the partially extended position responsive to a trigger, such as a signal from a key fob or a passive entry system or a vehicle door unlock button or the like. The handle portion, when in its recessed position, is at least partially received in the base portion so as to be not readily graspable by a user until the handle portion is moved toward its partially extended position.

Abstract: The childproof deadbolt includes a standard deadbolt with a thumb turn wherein a childproofing mechanism is integrated into the design of the thumb turn. The childproofing mechanism consists of at least one spring-loaded push button that when depressed engages an internal gear in rotational connection with the deadbolt. Absent depression of said push button the thumb turn is free to rotate independent of the internal gear and the deadbolt.

Abstract: Several new components are provided for a mortise lock. First, a non-handed clutching assembly, including a pair of spindle hubs rotatable within a pair of outer operating cams, is provided for a mortise lock. Second, a spindle-mounted lock-handing selector—which can be removed from one side of the lockset body while the lockset body is installed in the mortise of a door—is provided to set the handing of the clutching assembly. Third, an escapement mechanism is provided for a reciprocating-slide-based clutchworks, enabling the slides to move into a position biasing a clutch lever arm toward a hub-coupling position, even if the outer and spindle hubs are misaligned. Fourth, a guardbolt-actuated blocking assembly for a lockset is provided to block movement of the stop works or clutchworks when the door is closed and the outside door handle is disabled.

Abstract: A locking mechanism is provided that has an unlocked position and a locked position. The locking mechanism comprises the following. A first handle. A first rose attached to the first handle with the first handle adapted for rotational movement relative to the first rose. A first longitudinal slot in the first rose. A locking cartridge cylinder at least partially contained within at least the first handle or the first rose. A locking tab operably connected to the locking cartridge cylinder adapted for movement: at least partially into at least the second slot in the first rose in a locked position; and completely out of the first longitudinal slot in the first rose in an unlocked position.

Abstract: A door lock (10) having a lock body (11), an external handle and an internal handle (12), a rotatable interconnecting member (13) to interconnect the internal handle and the external handle, and a mechanism to allow the lock to have a passage mode, and a privacy mode and a deadlock mode, in one embodiment the mechanism comprises an outer hub (14) and an internal hub (15) which are inside the lock body, in a second embodiment a remote control arrangement is provided to allow at least some of the modes to be operated manually or by remote control.

Abstract: A locker structure is disclosed. The structure comprises a housing, latch, bolt, sliding member triggering rod, positioned within the housing, wherein the sliding member has a bottom edge provided with a slot holding a spring and a steel bead such that the sliding member moves to urge at the bolt or disconnected from the bolt form a locking state and the handle cannot be opened, or open the locker via an external handle, the sliding member is provided with a securing hole to lock with a body plate having a vertical long slot, and a spring and steel beads are provided between the plate body and the sliding member such that the plate body can be triggered to slide up and down by means of the long hole so as to change the urging position of the triggering rod and the triangular latch can change into different position adaptable to door opening at the left and right side.

Abstract: A latch assembly for releasably securing a first member in a closed position relative to a second member is disclosed. The latch assembly includes a frame, a rotary pawl, a locking member, a handle, and a lock plug. The frame is adapted for attachment to the first member. The handle is pivotally attached to the frame and is movable between a closed position and an open position. The locking member retains the pawl in the latched position when the locking member is in an undeflected configuration. The handle causes the locking member to deflect and release the pawl from a latched position when the locking member is in an unlocked position and the handle is moved to the open position. The lock barrel is supported by the frame and can selectively move the locking member to a locked position where the locking member cannot be actuated by the handle.

Abstract: A deadbolt mechanism including a lock out mechanism that functions to disable the operation of the deadbolt from at least one side of the deadbolt mechanism. The deadbolt mechanism includes a deadbolt, key cylinder, housing, turn knob and a shaft that connects the key cylinder and turn knob. To place the deadbolt mechanism in lock out mode, a release mechanism is actuated and the turn knob is pulled outward away from the door. By pulling the knob outward, the shaft engages a portion of the housing which prevents rotation of the shaft and thereby prevents movement of the deadbolt from the lock-out position.

Abstract: A panic exit door lock includes a cover (20) mounted to an outer side (10b) of a door (10). A sliding member (34) is slideably received in the cover (20) and operably connected to a latch (12). A handle (24) is pivotably mounted to the cover (20) and operably connected to the sliding member (34) such that rotation of the handle (24) causes sliding of the sliding member (34) to move the latch between an extended position and a retracted position. A limiting member (32) is pivotably received in the cover (20) between a blocking position not allowing movement of the sliding member (34) and a release position allowing movement of the sliding member (34). An inner lock core (54) and an outer lock core (270) are respectively mounted to an inner side (10a) and the outer side (10b) of the door (10). Either of the inner and outer lock cores (54, 270) can be rotated by a key to move the limiting member (32) between the blocking position and the release position.

Abstract: A mortise lock includes a case. A locking slide forms a bore to receive a spring and a steel ball to allow the locking slide to be slidable with respect to the lock case to abut against and/or disengage from a locking latch. The mortise lock is operated by turning an inside knob to drive a deadbolt and a latch lever and the locking slide is moved inward to engage a lever hub assembly thereby ensuring a locked condition. The mortise lock cannot be unlocked by operating an outside lever. When an inside lever is depressed, the lever hub assembly is driven to cause the rocker arm to push away a hooking lever and a knob spindle assembly, thereby retracting the deadbolt and the latch bolt and simultaneously moving the locking slide outward to show an unlocked condition, whereby the mortise lock can be unlocked by operating the outside lever.

Abstract: A door lock includes outer assemblies, latch assemblies and inner assemblies. The inner assemblies has a turning switch, fixing bolts, an interior rose and a detent device that includes an inner plate, a stop plate, a stop seat, a rotating spring, a retaining spring and a sprag. By pressing down the stop plate as the latch bolt is in a casing, a protruding block of the stop seat is engaged with a protruding member of the stop plate. The spindle can not rotate backward and maintains in an unlocked state. After the stop plate is pressed upward, the turning switch returns to a locked state and the latch bolt extends out of the casing. Therefore, the detent device can keep the latch bolt in the casing and keep the lock in the unlocked state.

Abstract: A multi-functional mortise lock that can be rapidly converted between different functions without opening the mortise lock case by installing blocking screws that extend through threaded blocking openings in a sidewall of the case and into blocking interference with moving components inside the case. The moving components include a lock/unlock lever, a latch retract lever and a spindle hub. The blocking screws are stored in threaded storage openings in the sidewall of the case. The sidewall of the case is marked adjacent to the threaded blocking openings and storage openings to identify functions that will be performed when the blocking screws are installed in one or more of the blocking openings.

Abstract: A bathroom lock device includes an inner locking mechanism and a lock set. The inner locking mechanism includes a manual control rod, an unlocking rotary plate and an inner actuating rotary plate. The manual control rod has a rotatable wheel while the unlocking rotary plate has a pair of actuating protrusions. In a locking operation, the manual control rod is pressed to a locking position so as to limit a rotational movement of the inner actuating rotary plate. In an unlocking operation, the manual control rod is returned to an unlocking position by turning a lever so as to permit turning the inner actuating rotary plate. When the lever turns the unlocking rotary plate, the actuating protrusions of the unlocking rotary plate smoothly push the rotatable wheel of the manual control rod so as to return the manual control rod to the unlocking position.

Abstract: A door lock able to be prevented from being locked by an unexpected exterior force includes a main body, a fixing member and a handle. The main body is provided with a sleeve at the center extended outwards from two sides. One end of the sleeve is matched with a lining tube that is linked with a button. Via rotating the button for an angle, projections of a stopper attached with one end of the button is to be guided into a blocking groove of the lining tube, enabling the button to be locked in the blocking groove so that the button can not be pressed down, able to prevent the button from being locked by an unexpected exterior force.

Abstract: A deadbolt mechanism including a lock out mechanism that functions to disable the operation of the deadbolt from at least one side of the deadbolt mechanism. The deadbolt mechanism includes a deadbolt, key cylinder, housing, turn knob and a shaft that connects the key cylinder and turn knob. To place the deadbolt mechanism in lock out mode, the turn knob is moved to the locked positioned and then pulled outward away from the door. By pulling the knob outward, the shaft engages a portion of the housing which prevents rotation of the shaft and thereby prevents movement of the deadbolt from the locked position.

Abstract: A multi-functional mortise lock that can be rapidly converted between different functions without opening the mortise lock case by installing blocking screws that extend through threaded blocking openings in a sidewall of the case and into blocking interference with moving components inside the case. The moving components include a lock/unlock lever, a latch retract lever and a spindle hub. The blocking screws are stored in threaded storage openings in the sidewall of the case. The sidewall of the case is marked adjacent to the threaded blocking openings and storage openings to identify functions that will be performed when the blocking screws are installed in one or more of the blocking openings.

Abstract: An electric lock with magnetic support of the coupling element, comprising a locking element engaging a selvage, a decoding assembly for a code bearing component, an actuation element, connected to an internal handle and associated with the locking element, and a second actuation element, connected to an external handle and coupled to the locking element by way of an electromechanical device. The actuation element comprises a stem connected to the external handle with a rotating plate and a contrast plate, at an end resting freely on a rotatable sleeve, coupled to the locking element and provided with notches; an electric motor and a slider, aligned with the notches actuatable to perform translational motion, and a magnet supporting a coupling element adapted to enter the notches to rigidly couple to each other the plate, the contrast plate and the sleeve.

Abstract: An electric lock with multiple-function spring, with a locking element, a decoding assembly for a code bearing component, a first actuation element connected to an internal handle, and a second actuation element connected to an external handle both coupled to the locking element by an electromechanical device; the second actuation element comprises a protruding stem that ends with a rotating plate, a rotatable contrast plate that rests freely on a rotatable sleeve coupled to the locking element, the plates and the sleeve being provided with respective notches; the electromechanical device has a motor with a worm screw on its shaft, a slider, coupled to the screw through a spring with one end fixed on the lock body, the central portion engaged on the slider, and the opposite end accommodated between two crests of the screw, and a coupling element for entering notches to couple plates and sleeve.

Abstract: The present invention relates to a lockable latch for securing together a first panel to a second panel or keeper on a second panel or frame. The latch has a housing, a lockplug configured for a key, a lock collar and a return spring. When a user turns a key to rotate the lockplug and thereby lock the lockplug, the lock collar rotates through 90 degrees and a portion thereof occupies the space or gap between an edge of the first panel and a portion of the latch housing configured and dimensioned to receive the edge of the first panel or frame. As a result, space between an edge of the housing and the first panel is taken up by a portion of the locking collar due to rotation of the locking collar in the housing.

Abstract: A tubular lockset includes a push button locking actuator with an automatic kick-off feature. A spindle assembly extends between an interior knob or lever and an exterior knob or lever. A latch assembly includes a bolt and a locking member that is movable between a locking position, where the locking member engages the spindle assembly, and an unlocking position. When the latch bolt is moved about ? inch, a locking member is disengaged from the spindle assembly to unlock the lockset. The disengagement occurs independently of any movement of the interior knob or lever.

Abstract: A lock mechanism operated by inner and outer lever handles provides a security classroom function and includes inner and outer lock mechanisms that are independently switchable between locked and unlocked states by inner and outer lock cylinders and keys. The inner handle always operates the lock mechanism to retract a latch bolt. The outer handle can only retract the latch bolt when both the inner and outer lock mechanisms are in the unlocked state. The outer key can retract the latch bolt when the inner lock mechanism is in the locked state, but cannot change the inner lock mechanism to the unlocked state or enable the outer handle, thereby ensuring positive control over the locked state of the outer handle from the inner side.

Abstract: An unlocking device for the lever handle door lock includes an inner lever, an outer lever, an inner mounting plate, an outer mounting plate, a spindle, an inner actuating rod and an outer actuating rod. The inner mounting plate and the outer mounting plate mount the inner lever and the outer lever. Each of the inner lever and the outer lever has an assembling hole so that the inner lever and the outer lever are correspondingly connected to the inner actuating rod and the outer actuating rod for separately operating a latch bolt unit. The inner actuating rod has an end capable of disengaging from that of the outer actuating rod so as to avoid driving the inner actuating rod.

Abstract: A lock mechanism for use with lever handles includes a lock core and a latch mechanism that is rigidly connected to the lock core to prevent the lock core from rotating in the door. Through-bolts are not needed, allowing a small diameter rose to be used. Stops and a spring return mechanism are entirely located within the lock core, allowing the rose to be thin. The lock core defines the rest position for the lever handles at an angle slightly above horizontal. To avoid the necessity for producing different locks in left and right-hand configurations, the lock core is made substantially symmetrical about a vertical plane, instead of a horizontal plane, and the inner and outer sides of the lock mechanism can be interchanged. A heavy-duty locking piece, including a pair of locking lugs that directly engage the lock core near its inner perimeter, allow the lock to withstand abusive forces applied through the lever handle.

Abstract: A lock for a door comprising a casing, a bolt operable to extend from or retract into the casing and manually operable bolt retention means to retain the bolt in its retracted state even when an automatically operating bolt holding member is released by inwards movement of a bolt release member. The bolt retention means comprises a snib having a part receivable in an opening in the bolt when the bolt is manually moved into the case from its normally retracted position. Once the snib part is in the opening and the inwards force on the bolt removed, the spring acting on the bolt moves the bolt to its normally retracted position, where it is then retained by the snib. To release the retention, the bolt is again moved further into the case, whereupon the snib part is moved clear of the bolt opening under spring bias, and the unretained bolt is moved by its bias to its normally retracted position.

Abstract: A lock with an electromechanical coupling device, which only consumes little electrical power, comprises an operating handle which constantly is in operative connection with a drive member of an electromechanical coupling device and upon recognition of an authentication code makes an operative connection with a driven member, which in turn is in constant operative connection with the operating mechanism of the lock. The drive member and the driven member of the coupling device are each spring-loaded into a rest position and can be coupled via a locking mechanism, which by means of an electromechanical transducer can be switched between a disengaged position and an engaged position.

Abstract: A lock mechanism for use with lever handles includes a lock core and a latch mechanism that is rigidly connected to the lock core to prevent the lock core from rotating in the door. Through-bolts are not needed, allowing a small diameter rose to be used. Stops and a spring return mechanism are entirely located within the lock core, allowing the rose to be thin. The lock core defines the rest position for the lever handles at an angle slightly above horizontal. To avoid the necessity for producing different locks in left and right-hand configurations, the lock core is made substantially symmetrical about a vertical plane, instead of a horizontal plane, and the inner and outer sides of the lock mechanism can be interchanged. A heavy-duty locking piece, including a pair of locking lugs that directly engage the lock core near its inner perimeter, allow the lock to withstand abusive forces applied through the lever handle.

Abstract: An inside locking device of a flat handle lock includes an inner handle unit having a fixing disk provided with a sleeve for combination with an inner handle having an elongated shank. The sleeve has an inside provided with a bottom plate, an unlocking plate, a first elastic member, a control cylinder, and a push button. The unlocking plate is received in the control cylinder, and has at least one ear plate locked in at least one guide slot of the control cylinder. The control cylinder is provided with a protruding plate that is locked in a straight slot formed in the sleeve, and the other end of the control cylinder is combined with the push button. The push button protrudes outward from the hole provided in the inner handle.

Abstract: A door lock-and-handle assembly includes a housing receiving a latch bolt and a dead bolt adjacent to the latch bolt, an escutcheon defining a recess, a handle mounted on the escutcheon, a spindle coupled to the dead bolt, a locking member received in the recess and movable to a locked position to prevent turning of the handle when the dead bolt is moved to an extended position, and a lock releasing member extending from the dead bolt and capable of driven by the latch bolt so as to move the dead bolt from the extended position to a retracted position and the locking member from the locked position to an unlocked position when the latch bolt turns from an extended position to a retracted position.

Abstract: A lock device that may be locked automatically includes a base fixed on a door plate. An actuating tube received in the hole of the base is provided with a locking member combined with a handle. The lock core unit has a lock core that may drive an actuating plate to rotate. The drive wheel has a drive slot for insertion of the actuating plate, so that the drive wheel and the actuating plate may be rotated simultaneously. An elastic member has two stop ends rested on the leg of the restoring wheel, and rested on the two sides of the ear plate of the locking plate. The drive plate has a first end inserted into an unlocking rotation knob of the other side of the door plate, and a second end inserted into the drive slot of the drive wheel.

Abstract: A door lock-and-handle assembly includes a housing receiving a latch bolt therein, a spindle for driving the latch bolt between extended and retracted positions, a handle coupled to the spindle, a sliding member connected to the latch bolt, a driving member coaxially coupled to the spindle and engageable with the sliding member, a locking member movable between locked and unlocked positions to engage and disengage the driving member, and a lock releasing member including a cam mechanism that has a cam member and a cam follower formed on the sliding member and the locking member, respectively, for moving the locking member from the locked position to the unlocked position when the latch bolt is pushed toward the retracted position by an external force.

Abstract: A deadbolt manipulation adjunct permitting user selection between dual cylinder, single cylinder, and disabled modes.

Abstract: The invention relates to a handle (10) for operating an opening leaf of a motor vehicle comprising an operating lever handle (14) which is intended to be moved by the user from a position of rest into a position for opening, and a transmission member (22) which normally moves with the lever handle (14) from a position of rest into a position of opening and which is connected to a linkage (64) for operating a lock, wherein the transmission member (22) is connected to the lever handle (14) by means of a disengageable mechanism (49, 22, 68, 66), the engagement of which is brought about by the vehicle antitheft unit and which, in its disengaged state, stores up at least some of the mechanical energy of opening applied to the lever handle by the user so as then to restore this energy to the transmission member during engagement.

Abstract: A locking apparatus of a game machine has the following components: a locking bar provided with a plurality of first engaging portions; engaging members having second engaging portions engageable with the first engaging portions; and a locking bar actuating member for actuating the locking bar from an engaging position where the first engaging portions engage with the second engaging portions to a disengaged position where the first engaging portions are out of engagement with the second engaging portions. A locking device performs, in accordance with operation of a key, a change-over between an unlocked state which permits the actuation of the locking bar into a disengaged position by the locking bar actuating member and a locked state which prohibits the actuation of the locking bar into the disengaged position by the locking bar actuating member.

Abstract: An auxiliary lock includes an exterior lock assembly having a knob and an actuating plate that is connected to the knob to rotate therewith. A casing is mounted inside a door for rotatably supporting a knob that is also connected to the actuating plate to rotate therewith. A control plate is mounted in the casing and includes a first end extended beyond the casing for manual operation. A second end of the control plate includes a notch releasably engaged with one of a number of teeth of an engaging wheel mounted in the casing. The control plate is movable vertically and retained in place by a positioning element. The engaging wheel is connected to the actuating plate to rotate therewith.

Abstract: The present invention relates to an arrangement for a locking mechanism comprising a lock bolt spring-assisted in the intended direction of locking, which is contained inside a lock casing connected to a plate capable of attachment along the side of a door. An actuating arm projects laterally form said lock bolt and capable of actuation by means of a handle connection extending through a door of the intended kind and a handle projecting on either side of the door. A pivoting follower acts between said handle and actuating arm for the purpose of actuating the actuating arm and the lock bolt. The arrangement has a lock component capable of being caused to move in a linear direction arranged in such a way as to be capable of displacement by means of a pivotally mounted lock component carrier.

Abstract: A door lock has a first handle, a second handle, and a lock device disposed between the first handle and the second handle. The lock device has a disk disposed on the second handle, an annular cover disposed on the first handle, a sleeve disposed on the disk, an annular dish, an annular spring, a cage ring, and an annular cage seat disposed in the annular cover in order, a case disposed between the sleeve and the annular cage seat, a draft block inserted in the case, a core inserted in the first handle, a tube inserted in the second handle, a button inserted in a rear end of the tube, an extended rod extending from the button and inserted in the tube, a pipe inserted in the first handle, a collar inserted in the disk, a positioning plate inserted in the sleeve, a hollow cylinder device inserted in the pipe, a compression spring inserterd in the hollow cylinder device, and a block seat disposed in the draft block.

Abstract: A manual control device includes an actuated tube which is connected to the stem member contacting against the rod movably received in the plug of the pickproof lock, an operating member securely connected to the actuating tube by receiving the boss thereof in the groove defined in the actuating tube, wherein the operating member has a rib so as to be frictionally received in the actuating tube. Both of the actuating tube and the operating member are received in the sleeve which has an L-shaped groove into which the protrusion extending from the actuating tube is movably received. The stem member pushes the rod of the pickproof lock by pushing the combination of the actuating tube and the operation member and rotating the combination to let the protrusion be securely positioned in the L-shaped groove of the sleeve.

Abstract: A positioning device for a cylindrical lock includes two first upper protrusions and two first lower protrusions respectively extending from an inside hub of the lock, two second upper protrusions and two second lower protrusions respectively extending from an outside hub. A chassis receiving a retractor therein has two first plates extending from a top surface thereof and two second plates extending from a bottom surface thereof. The two first plates of the chassis are received between the two first upper protrusions and two second upper protrusions, and the two second plates are received between the two first lower protrusions and two second lower protrusions such that the chassis is stationed between the inside and outside hub so as to let a pair of screws extend through these easily.

Abstract: A door lock includes an external locking unit and an internal locking unit mounted on the door body of a door at outer and inner sides to hold a lock cylinder, and a locking bolt unit controlled by the external locking unit to lock/unlock the door, the internal locking unit having a circular base block fixedly fastened to the door body, a rotary cover rotatably mounted on the circular base block, a shaft forced by a spring member into engagement with the spindle of the lock cylinder, and a sliding knob mounted on the rotary cover and shifted between a first position wherein the rotary cover and the spindle of the lock cylinder are stopped from rotary motion, and a second position where the rotary cover and the spindle of the lock cylinder are allowed to be rotated between the locking position and the unlocking position.

Abstract: A tubular lock includes an outside handle assembly and an inside handle assembly. A push button has an end that is normally extended beyond an inside handle when the tubular lock is in an unlocked status. When the push button is pushed, the tubular lock can be unlocked by rotating the inside handle to prevent the user from being inadvertently locked out.

Abstract: A keyless entry system for use with conventional locksets is provided. The system employs a battery operated motor and a gear train mounted on the inside of a door. The motor and gear train rotate the inside handle of the lockset in the same manner as a user would rotate the handle to unlatch the door. Misalignments between the gear train and the lockset are accommodated by a pawl which connects the gear train to the connecting shaft between the lockset's inside and outside door handles. The electric motor is activated by a control system responsive to a RF signal generated by a transmitter pendant carried by the user. The RF signal includes a user code, and the control system has a learning mode and an operating mode, with the learning mode serving to record a list of one or more authorized user codes and the operating mode employing that list to determine if the door should be unlatched in response to a particular user code.

Abstract: A locking slide latch comprises components that are easily assembled without the need for separate fasteners or adhesives. A preferred latch comprises a gripable base member having a spring member mounted thereon, a locking member rotatably mounted on the spring member and a rotatable lock plug mounted in the spring member and contacting the locking member. These components are assembled together without the use of separate fasteners or adhesives, thereby simplifying assembly and allowing for interchangeability of parts to meet varying latch requirements. The latches are preferably manufactured from corrosion resistant materials such as plastics, composites and corrosion resistant metals, and are highly suitable for use in automotive, recreational vehicle and marine applications.

Abstract: Opening of a motor vehicle door, having a door lock, is controlled by a system which includes: a door handle pivoted on the door for displacement between a rest position and an open position and connected to the door lock through a linkage; an intermediate lever which is pivoted about a pivot axis on the door and which is connected to the linkage; and a motorized mechanism interposed between the door handle and the intermediate lever. The motorized mechanism is arranged to assume, selectively, an inhibiting state in which manipulation of the door handle has no effect on the intermediate lever, and an operational state in which manipulation of the handle causes simultaneous displacement of the intermediate lever. When this mechanism is actuated to shift it from its inhibiting state to its operational state, the intermediate lever is displaced until the door lock is unlocked.

Abstract: A locking mechanism for security door assemblies, in particular but not exclusively, to a security door assembly which is fitted temporarily on a building. The locking mechanism for such a security door comprises a locking member movable between a locking state and non-locking state. A lock releasably engagable with the locking member prevents the locking member moving to the non-locking state. The lock mechanism further includes an operating device that is coupled to the locking member by a connecting structure which includes a force limiter. The force limiter limits the force the operating device can apply to the locking member without damage to any of the parts of the locking mechanism.

Abstract: The invention is a mortise lock constructed for very simple conversion between multiple functions and left and right hand openings. The lock can include or omit retraction of the latch bolt from either side with a key, permanent locking of either side's retractor, removal of the stopworks, simultaneous retraction of the latchbolt and deadbolt, or locking the retractor when the deadbolt is thrown. All of these conversions are accomplished without opening the case cover by the insertion or removal of screws or parts through holes in the cover or case, with the screws either stopping a part from moving or providing a catch upon which a part acts. The changeover between right and left handed openings is accomplished through the backplate with removal of only the armor plate, by removing, reversing, and reinstalling the latchbolt.

Abstract: A latch and lockset system comprises a common unit having a socket (30) that houses a rotor (40) pivotably supporting a catch (50) on a pin (53) and attached to latch means (handles 20, 22). As the lockset (10) is assembled, its components (50, 53, 40, 33/34, 23) secure themselves successively. The unit is mounted in a transversal bore (Q) of a door leaf (T) by introducing a handle (20) sideways so as to point outwardly towards the free door edge whereby the common unit becomes seated in the transversal bore (Q); then the handle main portion (24) is pivoted by 180.degree. to reach its idle position in which the handle (20) is biased by a returning spring block (34) on the rotor (40). A guide bush (18) radially screwed into the socket (30) for securing it in a longitudinal bore (L) receives a spring-biased bolt (15).

Abstract: A lock cylinder set to a lock has an outer cylinder serving as a housing. In the outer cylinder, a first inner cylinder into which an electronic key is inserted and a second inner cylinder connected to a locking/unlocking mechanism of the lock are rotatably set. A connecting pin is movably held by the first inner cylinder to connect the first inner cylinder with the second inner cylinder when the pin advances. A connecting pin control mechanism advances the connecting pin to mechanically hold the advance state of the pin when a proper key is inserted and retreats the connecting pin when the key is extracted. The connecting pin control mechanism has a cam plate contacting the protrusion of the connecting pin. The connecting pin retreats when the cam plate tilts and advances when the cam member rises.