Abstract: A combination structure of the assembly plates and the cylinder of a lock latch includes a cylinder, a first assembly plate, and a second assembly plate. The cylinder is formed with a slot which has a top end and a bottom end each formed with a locking recess, and has a first side and a second side each formed with at least one side recess. The first assembly plate is provided with at least one locking groove locked with the side recess of the first side of the slot, and is provided with a reinforcement plate locked in the locking recess of the slot of the cylinder. The second assembly plate is provided with multiple hooks locked in the side recess of the second side of the slot, and at least one recess for locking the side plate of the first assembly plate.

Abstract: A signal jitters detection system and its correction method are disclosed to detect minute time intervals (called “jitters”) between a clock signal and the upper and lower ends of a high-speed data stream. The system uses an optical head to read out an approximate relation between the amplitude variation and time variation of a radio frequency (RF) signal around the central level of an analog RF signal. Such a voltage difference is equalized as a time difference to obtain signal the jitters.

Abstract: A lock structure for bathroom use comprises an outer rose, an inner rose, an outer unlatching mechanism mounted to the outer rose, and an inner unlatching mechanism mounted to the inner rose. The inner unlatching mechanism includes a turnable inner unlatching rod on which a locking wheel is mounted to turn therewith. The locking wheel includes an engaging block for selectively engaging with a first engaging notch and a second engaging notch in a fixing member securely mounted in the inner rose. When the engaging block is engaged in the second engaging notch of the fixing member, the locking wheel is engaged in a notch of a follower wheel mounted on an inner spindle. The follower wheel can be turned when the inner handle is turned such that rotation of the follower wheel returns the locking wheel, thereby achieving the unlatching operation.

Abstract: A lock assembly has an outer cap, an inner cap, three latch devices and a transmitting device. The latch devices are mounted between the outer cap and the inner cap, and each has a cylinder and a bolt. An actuating shaft is connected to the first cylinder, and an inner handle is connected to the actuating shaft at one end of the actuating shaft corresponding to the inner cap. The transmitting device is connected to the cylinders of the latch devices to actuate the cylinders to an unlocked condition simultaneously. Accordingly, when the inner handle is rotated, the cylinders of the latch devices will be simultaneously unlocked.

Abstract: A lock assembly has an outer cap, an inner cap, three latch devices and a transmitting device. The latch devices are mounted between the outer cap and the inner cap, and each has a cylinder and a bolt. An actuating shaft is connected to the first cylinder, and an inner handle is connected to the actuating shaft at one end of the actuating shaft corresponding to the inner cap. The transmitting device is connected to the cylinders of the latch devices to actuate the cylinders to an unlocked condition simultaneously. Accordingly, when the inner handle is rotated, the cylinders of the latch devices will be simultaneously unlocked.

Abstract: A reinforcing structure of a latch of an auxiliary lock includes a lock tongue set having a lock tongue provided with at least one concave portion. A reinforcing plate is fixed in the gap between the concave portion of the lock tongue and the housing, so that the housing may withstand and support a larger external impact force.

Abstract: A strength reinforcing structure of a lock outer handle includes a disk seat defining a first hole rotatably receiving a handle and a drive shaft tube. The handle has a drive plate rotated by a lock core to drive a lock snapping plate to move longitudinally. The drive shaft tube has one end secured in the handle, and the other end provided with locking grooves for securing locking blocks of a driven ring which is combined with a drive tube which is combined with a restoring member which defines fitting slots combined on the drive shaft tube. The drive tube passes through a positioning plate which defines a second hole provided with locking edges engaged or disengaged with end edges of the lock snapping plate.

Abstract: A drawing plate structure of a latch of an auxiliary lock includes a drawing plate having a top portion extended toward one side, thereby forming a top flat portion. A lock tongue is provided with a slot, and the top flat portion of the drawing plate is inserted into the slot of the lock tongue.

Abstract: A remotely controllable lock includes a turn knob rotatably mounted to a main housing. The turn knob includes an axle rod with a non-circular hole through which a spindle of the lock extends. A power element is mounted in the main housing for driving a relatively larger gear of a power device. The relatively larger gear and a relatively smaller gear are integrally formed on a common shaft that has two ends to which two slide blocks are pivotally mounted, respectively. The slide blocks are mounted in a receiving hole in the main housing and a receiving hole in a fixing plate. The slide blocks are biased by elastic elements. One of the slide blocks includes a stub that extends beyond the associated receiving hole to come in contact with a sensor. The sensor sends out a signal to stop the power element. The relatively smaller gear meshes with a control gear of a control device. The control gear is rotatably mounted around the axle rod of the turn knob.

Abstract: A latch bolt mechanism of a tubular lock allows adjustment in backset by using an extension casing. The latch bolt mechanism has a latch bolt housing having a latch bolt mounted therein, the latch bolt being movable beyond a face plate or retracted into the face plate. Two plates are connected together and mounted to an inner end of the latch bolt. The plates includes aligned two first positioning holes, aligned second positioning hole, and aligned openings. An actuating plate is mounted between the plates and includes an end operably connected to the latch bolt. The other end of the actuating plate includes two teeth each having a block formed thereon. The blocks are pressed against by a follower plate that also includes two teeth. When either tooth of the actuating plate or the follower plate is pressed against by a spindle of the lockset, the latch bolt is retracted. An extension casing is mounted around the plates and movable toward or away from the latch bolt housing.

Abstract: A tubular lock includes a latch bolt cylinder engaged with a casing consisting of two casing parts. An actuating plate is mounted between the casing parts and includes two separate teeth and two protrusions. A follower plate is in close contact with the follower plate and to which the protrusions bear against. The follower plate also includes two separate teeth. A spindle of the tubular lock bears against two teeth of the follower plate, thereby allowing the actuating plate to retract the latch bolt indirectly. Alternatively, the actuating plate can be directly actuated to retract the latch bolt.

Abstract: A tubular lock includes a latch bolt cylinder with a latch bolt that may be extended beyond the doorplate or retracted into the doorplate. A casing consisting of two casing parts is engaged to an inner end of the latch bolt cylinder. An actuating plate is mounted between the casing parts and includes two teeth and a number of protrusions. A follower plate is removably held by the protrusions and also has two teeth. A spindle of the tubular lock bears against the teeth of the follower plate or the actuating plate, thereby allowing the actuating plate to retract the latch bolt directly or indirectly. A movable plate is mounted between the casing parts. The movable plate may be extended beyond the casing parts and includes a positioning hole through which one of two mounting posts of the tubular lock extends.

Abstract: A lock assembly includes an inner handle assembly having a first control plate and an inner handle, an outer handle assembly having a latching plate, and a latch assembly. The lock assembly is shifted from an unlatched status to a latched status upon operation of the first control plate, and rotation of either of the inner handle and the latching plate may unlatch the lock assembly.

Abstract: This invention relates to an improved door catch and in particular to one utilizing an integrally formed door catch to catch a door knob by pushing a door backward, the knob of the door will push the elastic door catch upward and when the knob has passed through the hook of the catch and the door catch will, because of its elastic force, return to its original position and hook the knob thus the door is held at a fixed place.