Abstract: A deadbolt assembly with a latch assembly and a lock cylinder. The deadbolt assembly includes a first torque blade longitudinally extending along a first axis and a second torque blade longitudinally extending along a second axis. The second torque blade is operatively coupled with the latch assembly to actuate the bolt between the retracted position and the extended position. The deadbolt assembly includes a geared arrangement operatively coupling the first torque blade and the second torque blade. The gear arrangement is configured to apply rotational movement of the first torque blade to the second torque blade.

Abstract: An exemplary system includes a mechanical key and an access control device. The access control device includes a housing defining a keyway that has a fixed position within the housing. The access control device further includes a root depth sensor assembly, an insertion depth sensor assembly, a control assembly in communication with the sensor assemblies, and an electronic lock device. The control assembly is configured to determine the bitting code of the mechanical key based upon information received from the sensor assemblies, to compare the bitting code of the mechanical key to a lock/unlock bitting code; and to transmit a lock/unlock command in response to the bitting code matching the lock/unlock bitting code. The electronic lock device is configured to transition between a locked state and an unlocked state in response to receiving the lock/unlock command and without requiring rotation of the mechanical key.

Abstract: An exemplary system includes a mechanical key and an access control device. The access control device includes a housing defining a keyway that has a fixed position within the housing. The access control device further includes a root depth sensor assembly, an insertion depth sensor assembly, a control assembly in communication with the sensor assemblies, and an electronic lock device. The control assembly is configured to determine the bitting code of the mechanical key based upon information received from the sensor assemblies, to compare the bitting code of the mechanical key to a lock/unlock bitting code; and to transmit a lock/unlock command in response to the bitting code matching the lock/unlock bitting code. The electronic lock device is configured to transition between a locked state and an unlocked state in response to receiving the lock/unlock command and without requiring rotation of the mechanical key.

Abstract: A push button lock assembly includes a tray, a button member slidably mounted to the tray, and a securing mechanism is mounted to the back side of the tray movable between a first position and a second position. A locking assembly is mounted to the button member and movable from a locked position to an unlocked position. When the locking assembly is locked, the connection between the button member and the securing mechanism is disconnected.

Abstract: A locking assembly is provided for securing an electronic module to a chassis of a rack enclosure within a mounting slot of the chassis. The locking assembly includes a lock configured to be secured to a vertical rail of the chassis. The lock further is configured to prevent the electronic module from being slidably installed into and removed from its respective mounting slot and to prevent a latch of the electronic module from being opened when the electronic module is secured in place within the chassis of the rack enclosure. The locking assembly further includes a key configured to enable the lock to be removed from the chassis thereby enabling the installation and removal of the electronic module from the chassis.

Abstract: The present invention relates to locking systems in general and in particular to locking systems that can be locked so that they cannot be opened even with a genuine key. The present invention further relates to a method for locking a locking system comprising a lock cylinder connected to a bolt such that it cannot be opened with any key, including with the original, genuine key, the method comprising the steps of: (i) adding a control lever to any cogwheel or cam connecting the lock cylinder to the bolt; (ii) moving the control lever such that the cogwheels or cams connecting the lock cylinder to the bolt are misaligned; wherein the lock cylinder is no longer connected to the bolt and moving the genuine key inside the lock cylinder does not move the bolt.

Abstract: A locking assembly comprising a fastener having a locking stud having a locking cavity and an aperture for receiving the locking stud, a lock having material adapted to contract when activated and having jaws adapted to engage the locking cavity of the locking stud when received in the aperture, and an unlocking mechanism comprising rotating body having an opening for a key.

Abstract: The present invention relates to a lock and a key for the same, and multiple modular lock core units are mounted in the lock. Multiple lock bead units having specific standard are mounted in each lock core unit. Each lock bead unit is detachable and is able to rearrange the permutations of the lock bead units. The key includes a handle, a core bar and multiple unlocking blocks. The core bar is connected with the handle. The unlocking blocks are detachable, are mounted around the core bar and have multiple lock teeth sequentially formed around the inner peripheries of the unlocking blocks. A user can adjust the permutations of the key teeth of the key to unlock the lock that has different permutations of the lock bead units, also can change the permutations of the lock core units to get the same effects.

Abstract: An air brake lock assembly helps to prevent air brake actuation knobs from being actuated. The air brake lock in accordance with the present invention is a theft-prevention device that mounts over the air brake knobs on the dash of a semi-truck cab. It is installed between the dash and the knobs and, when locked, the assembly prevents the knobs from being pushed in. If the air brake knobs cannot be pushed back in, the air brake will remain locked and the truck and trailer will remain immobile. In one embodiment of the present invention, the assembly includes a base and an enclosure for each brake knob. An air brake lock is disposed between the knobs such that the knobs can be selectively locked and unlocked. In one embodiment, the assembly is spring-loaded. In another embodiment, the assembly is not spring-loaded.

Abstract: A lock and key combination includes a cylinder rotatably disposed within a shell and a sidebar within the cylinder and movable between a locked position preventing rotation of the cylinder and an unlocked position allowing rotation of the cylinder. A slider is mounted within the cylinder for movement between a first position blocking movement of sidebar from the locked position and a second position not blocking movement of said sidebar. A key has a blade configured to be inserted into a keyway of the cylinder and includes a slider-actuating element mounted within the blade for movement with respect to the blade. As the blade is inserted into the keyway, a cam element within the keyway moves the slider-actuating element to a position engaging the slider so that further movement of the key moves the slider from the first position to the second position.

Abstract: An integrated seatpost bicycle lock is disclosed. The integrated seatpost lock has four solid members that are pivotally interconnected to form a cylinder seatpost in a first position and a lock in a second position. A first solid member has a lock cylinder end portion having a socket and an opening, and a second solid member has a lock head in one end connected to the opening in the first position and secured into the socket to form the lock in the second position.

Abstract: A lockset is actuable by pivoting a handle about a longitudinal axis of the lockset by rotating the handle and by pivoting the handle about an axis transverse to the lockset axis, such as by pushing or pulling. The lockset includes an inside handle and an outside handle, each associated with an independent mechanism, each of which can independently actuate the lockset. A locking mechanism prevents actuation of a first one of the independent handle mechanisms without affecting operation of the other handle mechanism. Upon actuation of the other handle mechanism, a retractor engages a surface of the locking mechanism and removes it from engagement with the first locking mechanism. An adjustment ring has a first configuration that centers the lockset in a door having a first standard thickness and a second configuration that centers the lockset in a door having a second standard thickness.

Abstract: The invention concerns a key whose blade comprises axially a window (18) forming an opening throughout the thickness of the blade between two opposite faces thereof, and a set of rollers (20) mounted in series along said windows with each roller being mounted freely rotating around a spindle (22) fixed transversal to the window. More particularly, it concerns security keys designed to cooperate with a pin tumbler cylinder.

Abstract: A core assembly for use with a core housing of a lock assembly is defined by a bifurcated core body including interconnected first and second cylindrical members disposed in an abutting relationship. The bifurcated core body defines a first end received by an opening disposed in the core housing and a second end defining a substantially continuous surface. A slot is defined crosswise of the interconnected cylindrical members disposed between the first end and the second end of the interconnected cylindrical members. A catch is received in the slot defined by the bifurcated core body. The catch is biased outwardly from the slot for interlocking with the core housing irremovably securing the core body to the core housing.

Abstract: The present invention relates generally to a lockable latch apparatus and a method of using same. More particularly, the invention encompasses a lockable latch that can be locked into place using a key to prevent it from sliding or being opened. The invention also provides a method of using the inventive lockable latch where the lockable latch has color coding or indicia to indicate its position within the latch assembly. The housing could also have an opening to receive and securely hold the latch handle inside the housing when in the locked position, and wherein from that locked position the latch handle can only be released or ejected using a key.

Abstract: Disclosed in one aspect is the fixed door pull handle assembly that includes an elongated door pull handle with two or more support standoffs projecting away from the elongated door pull handle and securing the elongated door pull handle to the doorframe or to the body of the door. One of the support standoffs is user rotatable, and rotatably engages a door latch assembly within the door. In another aspect, the support standoff is not user rotatable. Instead, a center-pivoting handle is mounted in-line with one of the support standoffs and rotatably engages the door latch assembly within the door. The center-pivoting handle is recessed within the elongated handle.

Abstract: The invention relates to a module for locking a motor vehicle lock. The aim of the invention is to design an easy-to-make and compact locking module for a lock. Said aim is achieved by a locking module comprising a housing (1), a switching nut (2) that can be connected to a locking cylinder so as to rotate the switching nut by means of a key, and a mechanism for converting a rotary movement of the switching nut (2) into a linear movement to lock and unlock a lock. The mechanism comprises a dog (12) which is linearly moved by a rotary movement of the switching nut (2). In the mounted state of the locking module, the linear movement of the dog actuates a mechanism that causes the lock to unlock or lock. In order to minimize the number of parts, the switching nut (2) is rotatably mounted by the module housing (1).

Abstract: An operating attachment (10) for operating a push button or switch, which includes a housing, (12) a handling part (11) having an actuator element (19) supported by said housing (12) for rotation in a direction of rotation (U), an operating element (26) displaceable parallel to a longitudinal axis (L) of the housing for operating a push button or switch, an operating drive (37) for transferring rotary movement of the actuator element (19) into a linear motion of the operating element (26) between an initial position (A) and an operating position (B), and a latching device (42) for latching the actuator element (19) in a latched position (R). The attachment apparatus (10) further includes at least one encoding element (48) moveable between a first encoding position (K1) that allows for rotation of the actuator (11) into the latched position (R) and a second encoding position (K2) which limits rotation of the actuator element (19) prior to reaching the latched position (R).

Abstract: A power locking pull or push button handle assembly is provided for a vehicle door having a lock and a latch. The handle assembly includes a base with a housing. A handle is pivotally mounted on the base, a power lock assembly is mounted within the housing on the base, and a keypad on the handle is operatively connected to the power lock assembly for keyless unlocking of the door. The handle includes a cover and backbone secured together, with the keypad sandwiched between the cover and backbone. The keypad is reinforced with a steel plate. Loads on the handle are shared by the backbone, cover, and keypad.

Abstract: A cam lock includes a cylindrical lock body with a flange extending radially from the distal end to be glued to a surface surrounding a mounting hole. The lock body has a bore extending axially, with an interior shoulder extending radially inwardly at the distal end. The shoulder includes two key channels extending therethrough parallel to the axis and spaced apart 90°. A central spindle extending coaxially in the bore has a distal neck received within the interior shoulder. The distal end of the spindle is provided with a keyway channel extending therein parallel to the axis of the assembly. A pin channel extends annularly in the proximal spindle, and subtends an angle of approximately 90° and a locking pin extends through a hole in the lock body into the pin channel to retain the spindle and limit the spindle rotation. A lock cam is configured to snap-engage a proximal neck portion of the spindle in a fixed attachment.

Abstract: A lock assembly (10) including a plug (12) having a keyway (14) for inserting therein a key (16), and a movable element (18) movingly disposed in the plug (12), the movable element (18) being divided into at least two separate magnetic portions (20, 22) arranged to move relative to one another and having identical magnetic polarity, wherein the magnetic portions (20, 22) are sufficiently near one another such that one of the magnetic portions (20, 22) applies a magnetic repelling force on the other magnetic portion (20, 22).

Abstract: A locking device comprises a key that comprises a key power coil and a key data coil and an electronically-actuatable lock comprising a lock power coil and a lock data coil. The key power coil and the lock power coil are coaxial and at least partially overlapping one another when the key engages the lock. The key data coil lies in a first plane and the lock data coil lies in a second plane. The first plane and the second plane are substantially parallel to one another.

Abstract: A combination non-programmable and programmable key for a security device of the type used to display items of merchandise includes a non-programmable portion for cooperating with a mechanical lock of the security device and a programmable portion for cooperating with a sensor of the security device that is operatively coupled to an alarm for indicating a security threat to the security device or to an item of merchandise displayed on the security device. The non-programmable portion includes a side assembly having a magnet that cooperates with a magnetically attractable locking pin to unlock the mechanical lock of the security device. The programmable portion emits an energy signal that cooperates with the sensor of the security device to disarm the alarm and thereby permit the security device to be removed or an item of merchandise to be removed without the alarm indicating a security threat.

Abstract: A locking apparatus includes a fixed housing with a longitudinal elongated bore between two open ends. One end defines an arcuate track with a new rotational displacement range. A pivoting riser extends from a driver to an elongated retainer moving across a locking core configured with a predefined rotational range. A follower on the driver travels within the track. The core and the driver may be connected and inserted via the same open end for rotation within the bore. When the locking core is unlocked and rotated with an operating key, the riser displaces the retainer to retain the core within the housing, while the follower continues to rotate within the track so that the rotational range of the core is changed to the new rotational displacement range. The apparatus may include the core. The apparatus may exclude the core to allow separate installation for combined rotation with the driver.

Abstract: Provided is a push-pull door lock capable of selecting a lever work direction which may be installed without needing to coincide a door opening direction with the lever work direction by driving a driving unit during both a push operation and a pull operation of a lever coupled to each of housings of a front surface and a rear surface of a door to unlock a lock mechanism received in the door. The push-pull door lock includes: a lever that is provided on a front surface of each of housings, which are respectively coupled to an inside and an outside of a door by supports, to pivot in a front-and-back direction and has a protruding portion protruding toward a door; and a selection member that is provided on a rear surface of the housing and limits a pivoting range of the protruding portion in order to select a push operation or a pull operation of the lever.

Abstract: A door lock assembly is provided. The door lock assembly includes a lock lever connected to a knob, an inter-lever connected to the lock lever, a first lock device connected to the inter-lever and reciprocating the inter-lever, and a second lock device disposed on one side of the first lock device and locking the inter-lever.

Abstract: A lock includes a lock sleeve, a lock body is disposed in the lock sleeve in a free rotating manner, a lock assembly, an actuating member, and an actuation key. The lock body includes a lock rotor coaxially and rotatably disposed within the lock sleeve, and a lock core coaxially and rotatably disposed within the lock rotor and defined a keyway at the lock core. The lock assembly normally locks the lock core with the lock rotor in such a manner that the lock body is free to rotate within the lock sleeve. The actuation key is slidably inserted into the keyway of the lock core to unlock the key lock unit, wherein when the lock assembly is unlocked by the actuation key, the lock core is rotated within the lock rotor to drive the actuating member to rotate and to longitudinally move for actuating a latch assembly.

Abstract: A lock includes a cylinder, fixed to a door or door wing, with which a pivot is associated coaxially and rotatably, a lever for closing the door or door wing to a jamb being keyed to the end of the pivot; a separate body can be keyed detachably to the head of the pivot and is provided with magnetic elements for the temporary locking of the rotation of the body with respect to the cylinder.

Abstract: A lock that is inserted and fixed in a receiving body of a motor vehicle is disclosed. The lock includes a stator inside which a rotor rotatably moves. The stator is fixed to the receiving body and includes a cover plate of the rotor fixed to the front face of the stator, where the cover plate has an opening for a key. There is also an anti-pull-out mechanism borne by said cover plate and the stator to fix the cover plate to the stator and to retain the rotor axially in the stator. The anti-pull-out mechanism blocks the cover plate axially on the stator by the positioning of the cover plate and its subsequent pivoting on the stator into an assembled position. The anti-pull-out mechanism includes an element for blocking in rotation the cover plate on the stator interposed between the cover plate and the front face of the stator.

Abstract: A latch has a displaceable latching element in a housing for engagement with a separate striker arm to be latched behind an engagement shoulder of the latching element. The housing mounts a cylinder lock to receive a key from the front. A rotor is mounted on the rear of cylinder lock and rotation of the key causes rotation of the rotor to drive a locking element to engage and lock the latching element. The rotor may also be axial displaceable against spring biasing responsive to a rear unit pushing element whereby unlocking from a rear cylinder lock may rotate the rotor to unlock and pushing causes the latching element to be displaced against its biasing to release the striker arm.

Abstract: An exemplary lock cylinder includes a shell, a plug positioned in the shell, and a locking assembly. The locking assembly is configured to prevent rotation of the plug when no key is inserted, and to permit rotation of the plug upon insertion of any of a plurality of keys having different bitting profiles. The locking assembly may further be configured to prevent key extraction when the plug is in a rotated position.

Abstract: A locking apparatus is configured to lock a first panel and a second panel to a computer device. The locking apparatus includes a lock rotatable between a first position and a second position, a mounting panel, a driving lever pivotably attached on the mounting panel, a blocking member attached to the mounting panel, and a latch member. When moved to the first position, the rotatable post rotates the driving lever, the driving lever pushes the latch member to unlatch from the second panel, and the rotatable post is disengaged from the blocking member to unlock the first panel. When moved to the second position, the rotatable post is blocked by the blocking member for locking the first panel, the driving lever is rotated to its original position, and the latch member latches the second panel.

Abstract: The invention relates to an electrically operable locking device for locking a gate. The electrical lock has a frame for mounting the locking device to the gate, and a housing slidably movable with respect to the frame between an upper position and a lower position and comprising a drop bolt arranged to move between an extended drop bolt position and an retracted drop bolt position and a mechanical locking mechanism arranged to lock and unlock the housing to the frame and comprising a key-operated cylinder lock to unlock the housing to the frame. The gate is locked if said housing is in the lower position and said drop bolt is in the extended position. The locking device further has a resilient element positioned between the frame and the housing and arranged to lift the housing relative to the frame when the housing is unlocked from the frame by operation of the key-operated cylinder lock.

Abstract: A lock system includes a lock, a key and a cover. The lock has a key hole defined therein. The key has a signal projector fixed thereon. The signal projector is capable of emitting a signal with a predetermined code. The cover shelters on the key hole and a signal receiver is fixed on the cover. The signal receiver is configured for receiving the signal emitted by the signal projector, and moved to expose the key hole when determining the signal emitted by the signal projector with a matched code. The present discloser also provides a method for opening the lock system.

Abstract: A lock (100) is described, comprising: a body (1) suitable for defining a housing (2) having a main development direction (D) along a direction of insertion (I) of the key; a first rotor (30) suitable for being rotationally housed inside said housing (2) of such a body (1) around the main development direction (D) of such a body (1), said first rotor (30) being suitable for defining a further housing to receive a second rotor (40) that can rotate inside said first rotor (30) around the main development direction (D) of such a body (1). The lock (100) is characterised in that said second rotor (40) can be rotated by the key between a position of disengagement and a position of engagement with said first rotor (30), in said position of engagement said first rotor (30) and said second rotor (40) being suitable for translating as a unit along the main development direction (D) of the body (1) to reach a position in which the lock (100) is actuated.

Abstract: A lock apparatus includes a housing, a rotor having a bearing portion, rods, a return spring, and a knob having a holding portion and a presser element. The presser element is formed so as to overlap the bearing portion with a predetermined overlap width. When the rods are kept engaged with the engagement portions, a rotating center of the knob is positioned closer to the holding portion than a contact point between the bearing portion and the presser element.

Abstract: A lock assembly for a lever type handle is disclosed. In the lock assembly for the lever type handle according to an aspect to the invention, the lever type handle is for opening and closing a door by a rotation of a handle portion. The lock assembly includes a key module rotated by a key member, wherein the key module being positioned in the handle portion, a rotary shaft rotated by a rotation of the key module and locking or unlocking the door through a dead lock member, and a rotation transmitter for transmitting the rotation of the key module to the rotary shaft.

Abstract: A compression latch is provided having a lock bolt operated via a codable cylinder lock. The lock bolt includes a guide having first and second inner surfaces. The lock includes a rotatable portion having a cam with a projection that is movable between the first and second inner surfaces. When the rotatable portion of the cylinder lock rotates via the key to cause the projection to move from a first position to a second position, the projection contacts the second inner surface and urges the lock bolt to engage a control member which prevents a handle of the compression latch from rotating. When the rotatable portion rotates via the key to cause the projection to move from the second position to the first position, the projection contacts the first inner surface and urges the lock bolt to disengage from the control member, which enables the handle to rotate.

Abstract: A lock has a body holding a locking member that can be locked to or released from the body by, for example, operation of a key. The lock includes an alarm that is triggered by the locking of the locking member. If, however, the lock is unlocked and relocked within a predetermined time interval, the alarm is disarmed. In this way, the lock can remain locked but with the alarm disarmed. The signals that cause the alarm to arm and disarm can be produced in any convenient way.

Abstract: The present invention, and inventive system, describes a locking system that reinforces an existing recessed cover or tubular. In many embodiments of the present invention, the present invention reinforces an existing recessed cover by preventing the recessed covers from being easily removed by unauthorized persons and prevents any unauthorized personnel from accessing a locked down tubular. In one embodiment of the present invention, the inventive system is designed to maximize the overall strength of the locking unit for recessed covers or tubulars by using applied force on both the recessed cover and the circumference, curves, or straight, edge of the recessed unit or tubular interior.

Abstract: A lock includes a body, a key-operable locking mechanism and a rotational indicator. The locking mechanism includes a spindle and a block. The spindle includes a key hole in an end and is connected, at another end, to the block to allow the block to be rotated from a locking position to an unlocking position. The indicator is disposed in the lock body, and includes, at a front end, a recess for receiving the block. With the indicator in the original position, as the block is rotated to the unlocking position, the block pushes a first side wall of the recess of the indicator to rotate the indicator to an indicating position. When the indicator is in the indicating position, a space is defined between a second side wall of the recess of the indicator and the block, and the block is moved in the space.

Abstract: A lock comprises a lock casing, a shackle, an indicating device and a button component. The shackle is Movably disposed on the lock casing. The indicating device is disposed in the lock casing, and moves from one original position to an indicating position with respect to the lock casing. The button component connects to the indicating device for restricting the movement of the shackle, the button component moves from a first position to a second position, for enabling the indicating device to move from the indicating position back to the original position.

Abstract: A switch restricting assembly includes a mechanical joiner that is placed around a switch of an electronic device, such as a smart phone, to prevent the device from being turned on or off. In another embodiment, the assembly includes a case that surrounds the power button to prevent access. The joiner locks the case in position over the switch. The switch can also be a power switch, volume switch, a frequency switch, and a configuration switch. The joiner forms a physical barrier over the power switch for restricting access to the power switch. Also, the joiner can secure an external physical barrier, such as a case over the power switch to restrict access. A key releases the joiner from the power switch. Restricting access to the power switch allows a tracking device in the electronic device to remain powered on to facilitate recovery of stolen devices.

Abstract: A door lock includes a deadbolt and a latchbolt each movable between a thrown position and a retracted position, an inside lever operable to move the latchbolt between the thrown and retracted positions, and an outside lever configured in one of a locked and unlocked state in which the outside lever is operable to move the latchbolt between the thrown and retracted position. A thumbturn is coupled to the deadbolt and is movable between a first position in which the deadbolt is in the thrown position, the latchbolt is in the thrown position, and the outside lever is locked, a second position in which the deadbolt is in the retracted position, the latchbolt is in the thrown position, and the outside lever is locked, and a third position in which the deadbolt is in the retracted position, the latchbolt is in the thrown position, and the outside lever is unlocked.

Abstract: A sealed push button latch. It includes a housing with an upper cavity and a lower cavity and a rim which provides a seal contact seat. The lower cavity has a latch opening formed therein at a first side thereof, and at least one drain/return clip aperture formed at a second side thereof. A push button with a keyed lock is slidably received in the upper cavity. A biasing device biases the push button to a closed position. A seal positioned on the push button provides sealing between the seal contact seat of the rim of the housing and the push button. A locking latch is slidably positioned in the lower cavity, and is slidably movable between a protruding position through the latch opening, and a retracted position, wherein pushing the push button down into the housing retracts the locking latch into the lower cavity.

Abstract: A locking device having a housing installed in a stationary manner in or at a leaf. The locking device has a locking element that is movable translationally into and out of the housing and has at least a first actuating device including a handle piece accessible from outside the housing that is operatively connected to the locking element such that the locking element is moved when this handle piece is moved along a predetermined movement path. The locking device has a second actuating device received in the housing that includes a transmission device which can be rotationally actuated and turned or rotated by a turning part. The turning part is accessible from outside the housing and is operatively connected to the locking element so that the locking element is moved out of the housing by turning the turning part in a locking direction.

Abstract: A combination non-programmable and programmable key for a security device of the type used to display items of merchandise includes a non-programmable portion for cooperating with a mechanical lock of the security device and a programmable portion for cooperating with a sensor of the security device that is operatively coupled to an alarm for indicating a security threat to the security device or to an item of merchandise displayed on the security device. The non-programmable portion includes a side assembly having a magnet that cooperates with a magnetically attractable locking pin to unlock the mechanical lock of the security device. The programmable portion emits an energy signal that cooperates with the sensor of the security device to disarm the alarm and thereby permit the security device to be removed or an item of merchandise to be removed without the alarm indicating a security threat.

Abstract: A cylindrical lockset comprises a multiple-compartment lock cage subassembly. A retractor is housed within a middle lock cage compartment. Spindle return torsion springs, for biasing corresponding handle-carrying spindles to their default positions, are housed within axially adjacent lock cage compartments. A torque plate transfers torque from the lock cage subassembly to relatively radially distal trim posts. A knob catch assembly seated in each handle-carrying spindle comprises a generally elliptically-shaped wrap around catch spring and a knob catch backup washer to resist axial loads produced by efforts to pull a handle off of the spindle. A key spindle provides a dog travel window defined by a closed, continuous edge of the key spindle, which window is positioned opposite of an axially-extending seam of the key spindle.

Abstract: A cylindrical lockset comprises a multiple-compartment lock cage subassembly. A retractor is housed within a middle lock cage compartment. Spindle return torsion springs, for biasing corresponding handle-carrying spindles to their default positions, are housed within axially adjacent lock cage compartments. A torque plate transfers torque from the lock cage subassembly to relatively radially distal trim posts. A knob catch assembly seated in each handle-carrying spindle comprises a generally elliptically-shaped wrap around catch spring and a knob catch backup washer to resist axial loads produced by efforts to pull a handle off of the spindle. A key spindle provides a dog travel window defined by a closed, continuous edge of the key spindle, which window is positioned opposite of an axially-extending seam of the key spindle.

Abstract: A clutch mechanism includes a rotating member, a clutch member and a key assembly. The rotating member has at least one pushed structure, and the clutch member has at least one second pushed member. The at least one second pushed structure abuts against the at least one first pushed structure. The key assembly is used for driving the rotating member to rotate in a first rotating direction and for driving the at least one first pushed structure of the rotating member to engage with the at least one second pushed structure for displacing the clutch member relative to the rotating member, so as to push the clutch member to an unlocked position.