Abstract: At least one exemplary embodiment of the present invention provides a removable drive-in housing assembly for securing a latch assembly in a door. The removable drive-in housing assembly can include a cylindrical casing having a longitudinal axis, the casing adapted to at least partially surround the latch assembly. The removable drive-in housing assembly also can include a unitary cylindrical inner collar removably receivable around an outer circumference of the cylindrical casing. Further, the removable drive-in housing assembly can include a unitary cylindrical outer collar removably receivable around an outer circumference of the inner collar. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. This abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: A lock for locking a door panel to a door frame, which includes a knob assembly comprising a front protective housing and a rear knob frame defining a lock cavity therebetween in the door panel; a door latch assembly including a latch actuation member transversely disposed within the lock cavity and a locking latch connected to the latch actuation member in a slidably movable manner; an actuation unit to actuate the door latch assembly; and a lock enhancing device which includes a reinforcing member for substantially mounting to the door panel between the front and the rear side thereof, and a latch guider integrally extended from the reinforcing member within the lock cavity to couple with an inner end portion of the latch actuation member so as to substantially retain the latch actuation member within the lock cavity in position.

Abstract: An adjustable deadbolt assembly including a deadbolt, a cylinder-connecting portion formed with mounting provisions for mounting thereto, a lock cylinder, an actuator formed with a hub connectable to a lock cylinder, the hub being journaled in the cylinder-connecting portion and a link bar that connects the actuator to the deadbolt at at least one of a plurality of attachment points formed on at least one of the deadbolt and the link bar. A method for adjusting an adjustable deadbolt assembly is also disclosed.

Abstract: An auxiliary lock comprises a housing having a faceplate attached thereto. A casing includes a first end received in the housing and having two positioning slots for selectively engaging with a guide member of the housing. A deadbolt is received in the housing and slidable between a retracted position and an extended position. A connecting member is mounted to an end of the deadbolt. An end of a pull rod is mounted in the deadbolt and has two guide grooves each having a longitudinal section and two retaining sections transverse to the longitudinal section and communicated with the longitudinal section. When the connecting member is in the retaining sections, the deadbolt is not movable along the longitudinal direction of the housing. When the connecting member is in the longitudinal section, the deadbolt is movable along the longitudinal direction of the housing relative to the pull rod.

Abstract: The present invention relates to an adjustable latch, having a half-round transmitting member for cooperation with the configuration of the link, the first plate and the second plate. The present invention advantageously provides flexibility in different installation distances and allows the insertion of the transmitting member to rotate and drive the bolt head to be retracted.

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 door lock includes a tubular casing having a front end-plate covered with a panel. The casing receives a bolt, a linking piece, a trigger and a tumbler therein, with the bolt connected to a slider through the linking piece. The slider has two pairs of cogs, and is movable between two opposite guides. An annular follower is positioned in the guides and has a pair of paws for selectively pushing the pairs of cogs in order to move the slider and hence the bolt backward. The slider further has a pair of indentations and one guide have a pair of teeth engagable with rear ends of the indentations when the bolt is fully extended, so as to provide the bolt with an extended position independent from the panel. Additionally, the guide has two pairs of opposite stops located between the pairs of cogs.

Abstract: A fastener device, in particular for a door or a gate, more particularly a double door, including a lock including a frame with a carrier plate and an edge plate, the frame being arranged to be mounted with the edge plate against an upright, at least one bolt slidably mounted on the frame between a retracted and a projecting position and extending in its projecting position with a distal extremity over a predetermined distance out of the edge plate such as to extend through and project with a portion out of the upright when the lock is mounted against this upright, and an actuation mechanism arranged to move the bolt from its retracted to its projecting position and vice versa and including an operating member acting on an abutment element on the bolt, which abutment element is separated by a predetermined length of the bolt from the distal extremity thereof.

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 latch for a tubular door lock employing a cam rotatable by door knob or door lever to retract a bolt extracting plate backward to open the lock which is positioned between two parallel framing plates and adapted to move from anterior position to posterior position with respect to the plates and an exterior box frame enclosing the parallel plates and the cam and supporting the cam for rotation. The external box frame adapted to be moved anteriorly or posteriorly to enable the tubular door lock to be utilized in a 2⅜ or 2¾ setback position.

Abstract: An adjustable-backset latch system for a lockset includes three main subsystems: a bolt retraction system, a backset-adjustment system and a deadlatching system. By virtue of the simplicity of the design of the backset-adjustment subsystem, the user can change the backset from 2⅜″ to 2¾″, and vice-versa with one hand. A pin is simply moved through a “U”-shaped slot formed in a housing and housing and bolt actuation components are extended simultaneously by the desired backset increment. The bolt retraction system of the present invention uses a cam in which the distance from a point about which the cam rotates and the end of the cam, and the distance to a smaller cam pin, are selected to multiply the relatively small angular distance transversed during a half-round rotation of the knob or handle into the desired retraction distance of a main bolt.

Abstract: A door lock core is composed of a latch part, an operating part and a barrel. The latch part is received in the barrel and has a disk with a slot rotatably mounted at a rear end of the barrel. The latch part has a first latch plate extending through the slot and a latch bolt provided at a front end of the first latch plate. The operating part is provided at a rear side of the disk and has a pull plate extending through the slot. The pull plate has a hook attached to the first latch plate and assembled between two side plates. The side plates each have a positioning hole in alignment with each other and a hook attached in the slot. A ring is rotatably mounted at a front end of the barrel and the latch bolt extends out through the ring.

Abstract: The deadbolt thumbturn assembly of the present invention includes a thumbturn including a thumbturn extension, which is inserted through a bushing collar and rose bearing, then secured with a retaining ring such that the thumbturn extension is able to rotate within the bushing collar. The threaded bushing collar is then inserted through the aperture of the deadbolt rose and secured with a retaining ring forming a deadbolt thumbturn assembly such that the threaded bushing collar is able to rotate with respect to the deadbolt rose. The thumbturn assembly is then attached to the deadbolt lock by fastening the bushing collar to the threaded boss of the inside housing and inserting the extension of the deadbolt actuator into a receptacle of the thumbturn.

Abstract: A latch assembly has a casing, a housing, a latch bolt, a slide, a connecting member, a lever holder, a lever and an adjusting pin. A slot is longitudinally defined in the housing. Two detents are respectively defined in opposite ends of the slot. The slide is connected to the fixed member with the connecting member that engages one of the notches in the fixed member. A notch is defined in the bottom of the slide. A biasing member is arranged between the slide and the connecting member to provide a biasing force to the connecting member to engage the fixed member. The adjusting pin extends through one of the detents, aligns with the notch in the slide and abuts the bottom of the connecting member. With such an arrangement, only one hand is needed to adjust the latch assembly.

Abstract: A two-point locking system for providing controlled access through a doorway is described comprising a controlled deadlatch assembly and a magnetic lock assembly. The controlled deadlatch assembly comprises (i) a deadlatch for selectively latching and unlatching a door, (ii) an input control device for selectively controlling the deadlatch, and (iii) a first wireless transmitter for transmitting a magnetic lock control signal. The magnetic lock assembly comprises (i) a metal housing unit, (ii) an armature plate, (iii) an electromagnetic element coupled to the housing unit and aligned to magnetically engage with the armature plate when selectively electrically energized, and (iv) a wireless receiver capable of receiving the magnetic lock control signal from the wireless transmitter.

Abstract: A dual backset deadbolt assembly includes a deadbolt housing that houses a deadbolt, a crank retainer disposed slidably in an extension housing that is connected to the deadbolt housing, a transmission plate connected to the deadbolt, a linking plate pivoted to the transmission plate, and a crank member retained rotatably in the crank retainer. The extension housing has first and second backset holes. The crank retainer includes an actuating member having a top wall formed with first and second positioning holes and an actuating aperture, and a holding member having side plates formed with crank retaining holes. The linking plate has a rear end extending below the top wall and formed with an upward positioning projection, and is biased upward by a biasing spring so as to engage the positioning projection with one of the first and second positioning holes. The crank member has an actuating protrusion which projects upwardly through the actuating aperture so as to engage the actuating member.

Abstract: A dual backset deadbolt assembly includes a deadbolt housing that houses a deadbolt, a crank retainer disposed slidably in an extension housing that is connected to the deadbolt housing, a transmission plate connected to the deadbolt, a linking plate pivoted to the transmission plate, and a crank member retained rotatably in the crank retainer. The extension housing has first and second backset holes. The crank retainer includes an actuating member having a top wall formed with first and second positioning holes and an actuating aperture, and a holding member having side plates formed with crank retaining holes. The linking plate has a rear end extending below the top wall and formed with an upward positioning projection, and is biased upward by a biasing spring so as to engage the positioning projection with one of the first and second positioning holes. The crank member has an actuating protrusion which projects upwardly through the actuating aperture so as to engage the actuating member.

Abstract: A door latch has an adjustable cam (25) to accommodate two backsets of the bore (24) through a door. The cam (25) is operably attached to a handle 14. Rotation of the handle (24) approximately 45° fully retracts latch bolt (54) and deadbolt (56) through a slide actuator (100) that pulls a link (112) which pivots a cam lever (104) that retracts the bolt (54). The bolt (54) retracting motion is magnified with respect to the motion of actuator (100) via the link (112) and cam lever (104). The link (112) and cam lever (104) are mounted within cylinder section half (52) of housing (28) so as not to interfere with the deadbolt (56) and its slide (150) and deadbolt locking plate (170) that are mounted in a complementary cylinder half (51).

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 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 backset adjustment structure for a dead bolt assembly having a dead bolt connected with an operating plate, a support tube connected to support plates, and an operating lever operating the dead bolt, including cover plates enclosing the support plates and each having a hole for receiving the operating lever; a catch plate installed next to the operating plate to be moved along with the cover plates, and having catch grooves in which a given sized catch boss, provided to the operating plate, is fitted; the operating plate having a front end connected with the dead bolt by a pin and able to be turned down, and a space with a slant at its middle; and a button with a protruded slant formed on one of the cover plates, and operating to turn the operating plate down.

Abstract: An adjustable bolt for a lock has a hollow body, a tongue, and two arms. Two retaining plates sandwich the arms therebetween. Each of the retaining plates has a slot defined therethrough. A sleeve pushing the arms extends through the slots of the retaining plates. The slot in one of the retaining plates has two circular portions defined at two ends thereof, and a middle portion between the circular portions, wherein a diameter of the circular portions is larger than a width of the middle portion. A resilient member is provided on a second end of the sleeve to immovably receive the first step in one of the circular portions. Whereby, by releasing the first step from the circular portion, the sleeve is able to be moved along the first slot for changing a distance from the sleeve to the tongue.

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.