Abstract: A lock for a USB connector has a shell with an end opening, multiple lock assemblies mounted rotatably through the shell and an actuator mounted pivotally in the shell. Each lock assembly has a locking notch. The actuator has multiple locking protrusions selectively engaging the locking notches. The USB connector is inserted through the end opening into the shell and is selectively locked by a mounting segment on the actuator.

Abstract: A lock has a housing, a movable cylinder, a stationary cylinder, a limiting slide assembly and a latch bar. The housing has a cavity. The movable cylinder is mounted rotatably in the cavity and has a curved recess. The stationary cylinder is mounted securely in the cavity and adjacent to the movable cylinder and has a rail slot. The limiting slide assembly is mounted in the rail slot and has a limiting slide, a ball and a spring. The limiting slide is mounted slidably in the rail slot and has a ball recess for receiving the ball. The latch bar extends through the movable and stationary cylinders and has an annular groove for receiving the ball. The limiting slide assembly is compact and has a simple structure to improve the production rate and the lower the cost of the lock.

Abstract: A combination padlock with a name card has a housing, a card clamp, multiple dial cores, a shackle, a locking shaft and a key core. The housing has a card surface. The card clamp is mounted detachably on the card surface and holds a name card to indicate who owns the padlock. The dial cores are mounted in the housing, have a combination and provide a combination locking capability. The shackle is U-shaped and has a mounting end and a locking end. The mounting end is mounted through the dial cores. The locking end detaches from the housing. The locking shaft is mounted in the housing and selectively meshes the shackle with the dial cores. The key core is mounted in the housing, locks and releases the shackle by a key and allows a person to unlock the padlock when the combination is forgotten.

Abstract: A dual-mode padlock can be unlatched by dialing a combination assembly or an associated key. The dual-mode padlock has a latching element movably mounted inside to engage with or disengage from a latch. When the dual-mode padlock is locked, the user can directly push the latch into a mounting groove to engage with the latching element and make the dual-mode padlock locked, without use of the associated key or dialing of the combination assembly. This makes it timesaving and convenient to lock the dual-mode padlock.

Abstract: A lock has a shell, an internal sleeve and a locking rod assembly. The shell has multiple protrusions formed inside the shell. The internal sleeve is mounted rotatably in the shell. The locking rod assembly is mounted in the internal sleeve and has multiple locking rods. Each locking rod has a cut selectively aligning with the protrusions in the shell. When the cuts of the locking rods align with the protrusions in the shell, the internal sleeve can be rotated relative to the shell to change the lock or unlock status of the lock.

Abstract: A lock has a shell, an internal sleeve and a locking rod assembly. The shell has multiple protrusions formed inside the shell. The internal sleeve is mounted rotatably in the shell. The locking rod assembly is mounted in the internal sleeve and has multiple locking rods. Each locking rod has a cut selectively aligning with the protrusions in the shell. When the cuts of the locking rods align with the protrusions in the shell, the internal sleeve can be rotated relative to the shell to change the lock or unlock status of the lock.

Abstract: A combination lock has a plurality buttons movably received in the casing and a knob rotatably received in the casing. When specific buttons are pressed downward, rotating the knob from a first position to a second position, the balls in the downward movement buttons are limited in the limiting holes in the buttons by the abutting faces of a frame. Rotating the knob to a third position allows pins of the pressed buttons to be secured and limited in the longitudinal paths. Pressing the returning rod is able to release the arms which are received in the arm stays in the pressed arms. Rotating only the core relative to the combination of the rotator and the body is able to drive the second abutting block to move so as to return all the pins back to their original positions to be ready for next use.

Abstract: A lock assembly has a casing, a securing axle and a wheel. The securing axle is mounted rotatably in the casing and has a threaded end extending out of the casing. The wheel is mounted rotatably in the casing and selectively engages with the securing axle to rotate the securing axle. By rotating the wheel and the securing axle simultaneously, the threaded end of the securing axle can be screwed into an article. When the wheel disengages from the securing axle, the wheel cannot rotate the securing axle to keep the securing axle in the article. Then the article is in a position in cooperation with a cable.

Abstract: A lock assembly has a casing, a securing axle and a wheel. The securing axle is mounted rotatably in the casing and has a threaded end extending out of the casing. The wheel is mounted rotatably in the casing and selectively engages with the securing axle to rotate the securing axle. By rotating the wheel and the securing axle simultaneously, the threaded end of the securing axle can be screwed into an article. When the wheel disengages from the securing axle, the wheel cannot rotate the securing axle to keep the securing axle in the article. Then the article is in a position in cooperation with a cable.

Abstract: A combination padlock has a housing, a dial core, a connector, a key core and a shackle. The housing has a cavity. The dial core is mounted in the cavity and has multiple dials and a shaft extending through the dials and having a bottom end. The connector is mounted in the cavity and has a cylinder and a lateral arm. The cylinder has a through hole, an open slot and a slid pin extending through the open slot. The lateral arm abuts the bottom end of the shaft. The key core is mounted rotatably in the through hole and has a rail slot holding the slide pin. The combination padlock can be unlocked by either operating the dial core or inserting a corresponding key into the key core so using the combination padlock is convenient.

Abstract: A cable lock has a hollow shell, a lock assembly, a cable, a driving wheel and a locking rod. The lock assembly is mounted in the shell and has a lock cylinder and an actuating rod that is allowed to move axially when the lock cylinder is unlocked. The cable is attached to the shell and is fastened to a specific place. The driving wheel is mounted in the shell and has a non-circular central hole. The locking rod has a non-circular head and a threaded rod extends out of the shell. The locking rod is pushed to engage the head and the central hole in the driving wheel. Then rotating the driving wheel screws the threaded rod into an electrical appliance. Therefore, the electrical appliance is securely attached to any specific place with the cable lock.

Abstract: A lock has a housing, a movable cylinder, a stationary cylinder, a limiting slide assembly and a latch bar. The housing has a cavity. The movable cylinder is mounted rotatably in the cavity and has a curved recess. The stationary cylinder is mounted securely in the cavity and adjacent to the movable cylinder and has a rail slot. The limiting slide assembly is mounted in the rail slot and has limiting slide, a ball and a spring. The limiting slide is mounted slidably in the rail slot and has a ball recess for receiving the ball. The latch bar extends through the movable and stationary cylinders and has an annular groove for receiving the ball. The limiting slide assembly is compact and has a simple structure to improve the production rate and the lower the cost of the lock.

Abstract: A controlling assembly for a locking device includes a latch bolt adapted to be engaged with the axle and rotatably extending out of the casing, the latch bolt having a threading formed on a free end of the latch bolt, a dial ring adapted to be movable and rotatable relative to the axle and a clutch device provided to selectively engage the dial ring and the latch bolt. When the latch bolt is engaged with the dial ring and the locking device is in an unlocked status to allow the axle to move axially inside the casing, rotation of the dial ring is able to drive the latch bolt to rotate simultaneously so that the latch bolt is able to threadingly engage with an object to be protected.

Abstract: A combination lock has a plurality buttons movably received in the casing and a knob rotatably received in the casing. When specific buttons are pressed downward, rotating the knob from a first position to a second position, the balls in the downward movement buttons are limited in the limiting holes in the buttons by the abutting faces of a frame. Rotating the knob to a third position allows pins of the pressed buttons to be secured and limited in the longitudinal paths. Pressing the returning rod is able to release the arms which are received in the arm stays in the pressed arms. Rotating only the core relative to the combination of the rotator and the body is able to drive the second abutting block to move so as to return all the pins back to their original positions to be ready for next use.

Abstract: A lock assembly includes a securing axle rotatably extending out of the casing and having a threading formed on an upper portion thereof for threading connection to an object to be protected and a push movably received in the casing to be selectively engaged with a lower portion of the securing axle to allow the rotation of the securing axle to drive the push to rotate simultaneously such that when the securing axle is rotated, the lock assembly is rotated and the object to be protected is threadingly connected to the securing axle.

Abstract: The connector lock for a USB port has a tubular body, a rotatably limit, a lock activator, a plug and a faceplate. Aligning a rotating diametric recess in the rotatable limit with a stationary diametric recess formed in the proximal end of the tubular body allows the tubular lock activator to slide on the tubular body and unlock the connector lock from a USB port. Then the connector lock can be removed from the USB port so the USB port can be used.

Abstract: An apparatus is provided having a casing to firmly engage a first and second object. The apparatus contains a control knob assembly rotatably connected to the casing. A hooking engagement mechanism is operably connected to the control knob assembly to transform the control knob assembly rotation into lateral movement within the hooking engagement mechanism. The hooking engagement mechanism has a follower member with a hole therethrough. The follower member is capable of engaging the second object. A cam is operably connected to the control knob assembly. Rotation of the control knob assembly results in rotation of the cam. The rotation of the control knob assembly causes the follower member to move linearly so as to attach to and detach from the second object.

Abstract: The connector lock for a USB port has a tubular body, a rotatably limit, a lock activator, a plug and a faceplate. Aligning a rotating diametric recess in the rotatable limit with a stationary diametric recess formed in the proximal end of the tubular body allows the tubular lock activator to slide on the tubular body and unlock the connector lock from a USB port. Then the connector lock can be removed from the USB port so the USB port can be used.

Abstract: A lock includes a control knob with a keyway and a receiving space defined in a distal end face of the control knob to correspond to the receiving hole of the sliding seat. The sliding block is able to selectively be received at a joint of the control knob and the sliding block to allow movement of the control knob to drive the latch to move accordingly.