TONG LUNG METAL INDUSTRY CO., LTD.
|TONG LUNG METAL INDUSTRY CO., LTD. Patent applications|
|Patent application number||Title||Published|
|20150308157||METHOD FOR CORRECTLY MOUNTING AN ELECTRONIC DOOR LOCK ON A LEFT-HANDED OR RIGHT-HANDED DOOR - A method of mounting an electronic door lock on a door includes: a manual operation to rotate a protrusion of a rotational actuator to initially press a switch; and an operating procedure implemented by the electronic lock for determining a correct mounting direction of the electronic door lock. The operating procedure includes controlling, in response to a signal sent by the switch that is initially pressed, a driving unit to rotate the protrusion in a direction from the initially pressed switch to the other initially un-pressed switch and to drive a latch to move from an unlatched position toward a latched position, followed by stopping and subsequently controlling the driving unit to rotate the protrusion in a reverse direction and to drive the latch to move toward the unlatched position.||10-29-2015|
|20140041422||Transmission Mechanism Of A Lock Assembly - A transmission mechanism of a lock assembly includes a base; a core assembly partially received in the base and having therein a core adapted to connect to the rod so as to control movement of the rod; an operating element rotatably connected to the base; a clutch device movably received in the base and selectively engaged with the operating element; a driving device received in the core assembly to drive the clutch device to move toward/away from the operating element; and an activation device connected to the base to control operation of the driving device such that the latch is moved with assistance of the rotation of the operating element when the clutch device is connected to the operating element and the latch is immovable when the clutch device is away from engagement with the operating element.||02-13-2014|
|20130241216||LOCK SHELL ASSEMBLY - A shell assembly includes a first shell having an elastic joint component securely formed on a side face of the first shell, a second shell received in the first shell having a concavity to correspondingly partially receive therein the joint component, such that the first shell and the second shell are separably connected together for a replacement application.||09-19-2013|
|20130118218||LOCK ASSEMBLY HAVING OUTER AND INNER LOCK UNITS - In a lock assembly, a spindle that is inserted into a rectangular latch operating tube is arranged to be rotatable from an unlocked state to a first locked state, and to be movable axially from the unlocked state to a second locked state. The spindle is connected to a key-operated lock of an outer lock unit and to an operator of an inner lock unit. The key-operated lock is rotatable to operate the spindle to the first lock state from the unlocked state, and the operator is pressable to move the spindle to the second locked state from the unlocked state.||05-16-2013|
|20120304712||PUSH-BUTTON TYPE CYLINDER LOCK ASSEMBLY - 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.||12-06-2012|
|20120235429||HANDLE-RETURNING DEVICE FOR A CYLINDER LOCK ASSEMBLY - In a handle-returning device of a cylinder lock assembly, a support base has an inner annular flange and an axial spring-retaining lug. A rotation driver has an inner tubular wall extending into the inner annular flange of the support base, and a spring driving element. A torsion spring is disposed around the inner annular flange and between the support base and the rotation driver, and has a spring leg abutting the spring-retaining lug and the spring driving element. A rotary plate abuts the support base opposite to the rotation driver, and has an engaging part engaging a tongue projecting from the rotation driver. A reinforced structure is thus provided to oppose high torsional stresses produced upon rotation of a lever handle.||09-20-2012|
|20120204611||EXCHANGEABLE CYLINDER LOCK ASSEMBLY - An exchangeable cylinder lock includes a plug shell connected to a pin chest. A locking pin is disposed in a radial pin hole in the pin chest and is biased to protrude from an aperture in a cover plate and to engage a lock housing. The locking pin is depressable to retract for disengaging from the lock housing. A locking ring is disposed around the plug proximate to the locking pin, and has at least one indentation. When the plug is rotated using a right key, the locking ring can be rotated to align the indentation with the locking pin so as to permit depression of the locking pin, or to move the indentation away from the locking pin so as to prevent depression of the locking pin.||08-16-2012|
|20110289987||DOOR LOCK ASSEMBLY HAVING PUSH/PULL HANDLES - In a door lock assembly, a push/pull handle is connected to a slide plate through an actuator. When the handle is operated, the actuator drives a rotary cam to rotate a spindle tube, which in turn operates a latch cam connected to a latch. The slide plate is mounted movably within a housing in proximity to the rotary cam to slide transversely of a rotation axis of the spindle tube, and has two drive elements to respectively drive two driven elements of the rotary cam. The actuator is formed as a strip having one end connected to the handle, and another end connected to the slide plate. The strip is pivotal along with the handle to actuate the slide plate.||12-01-2011|
|20110067464||ELECTRIC DOOR LOCK - An electric door lock includes a transmission wheel driven by a motor and incorporating a spring with a driving end to drive a driven wheel. The transmission wheel and the driven wheel are rotatably sleeved around an inner drive tube connected to an inner handle. A spindle is inserted into the inner drive tube and has an operating end exposed from the inner handle. The driven wheel is connected integrally to the spindle for rotation. Preferably, a coupling piece extends through an arc-shaped slot in the inner drive tube and interconnects the driven wheel and the spindle.||03-24-2011|
|20100225126||LATCH-BOLT MECHANISM OPERABLE TO ALLOW FOR IDLE ROTATION OF AN EXTERIOR HANDLE - A latch-bolt mechanism includes a housing, a latch-bolt, and a drive member. The latch-bolt is movable between an extended position and a retracted position, and includes a bolt body and an engaging member operable to move relative to the bolt body between an engagement position and a disengagement position and having an engaging portion. The drive member has a driving portion. When the engaging member is at the engagement position, the driving portion can be activated to contact and push the engaging portion so as to move the latch-bolt from the extended position to the retracted position. When the engaging member is at the disengagement position, contact between the driving portion and the engaging portion can be prevented.||09-09-2010|
|20100225123||LATCH-BOLT MECHANISM WITH A DISTANCE-ADJUSTING DEVICE - A latch-bolt mechanism includes a housing, a latch-bolt, and a distance-adjusting device. The latch-bolt is movable relative to the housing between an extended position and a retracted position. The distance-adjusting device includes a movable unit movable in the housing between first and second vertical positions and including a first drive member for driving movement of the latch-bolt from the extended position to the retracted position when the movable unit is disposed at either the first or second vertical positions, and a fastener unit for locking the movable unit releaseably at a selected one of the first and second vertical positions.||09-09-2010|
Patent applications by TONG LUNG METAL INDUSTRY CO., LTD.