Abstract: A latching system for releasably securing a first structure relative to a second structure. The latching system includes a latch assembly coupled to the first structure and a keeper assembly coupled to the second structure. The latch assembly is selectively engageable with the keeper assembly to hold the first structure against movement relative to the second structure.

Abstract: A door opening and closing device for a vehicle is provided in which a pivoting force of a rotor pivoting in response to a key operation of a cylinder lock is transmitted to a key operating force input member side of a door lock device via a pivot rod, wherein pivoting force transmission means (18) is provided between a pivot rod (17) and the key operating force input member, the pivoting force transmission means (18) being formed by housing within an extension case (103) a driven-side pivot member detachably linked to the key operating force input member in a relatively non-pivotable manner, a drive-side pivot member detachably linked to the other end part of the pivot rod (17) in a relatively non-pivotable manner, and a transmission member transmitting a pivoting force from the drive-side pivot member to the driven-side pivot member, and the extension case (103) is detachably mounted on a casing (25A) of a door lock device (16A) so as to extend from the casing (25A).

Abstract: The locking device contains an axle, a bolt, a positioning plate, and a cylinder. The axle is connected to a thumb-turn knob and, from a circumference of the axle, a lever is extended perpendicularly. The bolt has a vertical trough in a rear section. An end of the lever is embedded in the trough. The positioning plate has an elongated opening inside which the axle is embedded. The cylinder is positioned adjacent to and above the rear section of the bolt. The cylinder has a key hole in the center and an activation bar extended from a circumference of the cylinder. When the thumb-turn knob or a key in the key hole is turned, the positioning plate is moved towards an opposite direction. In turn, the lever of the axle pushes or pulls the bolt in the same directions as the key or the knob is turned.

Abstract: A lock assembly including a latchbolt that may be effectively lengthened to accommodate varied backset distances for doors. The lock assembly may include a housing, a latchbolt including an attachment member, an extension member, a retractor element, and an operator. The extension member may be mounted to the attachment member to extend from the latchbolt for effective lengthening of the latchbolt. The retractor element, operatively responsive to the operator, is disposed within the housing for linear reciprocating movement to move the latchbolt, and is selectively engageable with the attachment member or with the extension member. The extension member defines a recess adapted to receive the attachment member. A latch case may receive the latchbolt, and a cylindrical sleeve may receive the latch case and the latchbolt when the extension member is in use to increase the backset dimension.

Abstract: Disclosed is apparatus and methodology for providing a retrofittable lock assembly for an enclosure. A manually or electronically accessible lock assembly has been provided that may be attached to an enclosure to control access to items stored in the enclosure. In a particular form, the retrofittable lock may be applied to a refrigerator used to store controlled medications. The retrofittable lock contains electronic circuitry that maintains a record of user identification, date, and time of access of users seeking access to items stored in the enclosure.

Abstract: The present invention is an apparatus of joined parts that allows the locking of a gate framed in vinyl parts to a stationary post made of vinyl. The stationary vinyl post is typically hollow with the walls of the post being typically of a thickness of no more than ?of an inch and the outer diameter of the gate framing and post typically ranging from 3½inches by 3½inches square to 5 inches by 5 inches square in size. The apparatus includes a kit where round or square or rectangular cups that have overlapping top flanges and are inserted into and fit snugly in holes drilled or cut into the sides of a hollow vinyl fence post. The cups are configured to accept the installation of standard home deadbolt locks.

Abstract: A locking gate latch includes a latch assembly and a striker bar. The striker bar is attached to a gate frame and the latch assembly is attached to a gate post. The latch assembly includes a latch frame, a lock latch, a locking plate and a locking tongue. The lock latch is pivotally retained by one leg of the latch frame. The locking plate is pivotally retained by the other leg of the latch frame. One end of the locking tongue is attached to an outside key lock and the other end is received by the locking plate. Pivoting the outside key lock to one side locks the locking gate latch. Pivoting the outside key lock to the other side unlocks the locking gate latch. A second embodiment of the gate latch further includes an inside locking assembly, which allows a gate to be locked from an inside.

Abstract: A door lock comprises a housing having two plates to be mounted on opposite sides of a door respectively and a position base at between the plates. A driving mechanism has two handles pivoted on the plates respectively for swing, two pawls provided on the handles respectively having ends thereof extended inwards at between the plates and two arms received in the housing and pivoted thereon to be driven by the pawls respectively. A driven mechanism has gears provided on the position base to be driven for rotation by the arms and a sliding block driven by the gears for reciprocation along a predetermined orientation. A locking mechanism has a button and a pressing plate. The button is pressed to make the pressing plate moving the gears away from the pawl, so that the gears will not be driven by the pawl.

Abstract: This invention involves a locking apparatus for semi-trailers and/or freight delivery units. A pin plate is attached to a standard trailer swing door, roll-up type door or another type of door. A housing is placed in the floor of the semi-trailer. A pin located within the housing is slidable within the housing from an unlocked position to a locked position, whereby the pin is raised to engage a pin plate secured to the semi-trailer door. A cam lock or another lock is used to keep the pin raised in the locked position.

Abstract: The present invention comprises a simple deadbolt assembly for hinged doors. The deadbolt assembly includes a deadbolt slideably mounted between two side plates for movement between an extended position and a retracted position. A cam is rotatably mounted between the side plates and actuates movement of the deadbolt upon rotation of the cam. The cam is mounted through an elongated opening in the deadbolt and includes an actuating arm with a guide. The guide is positioned within a corresponding guide channel formed in the deadbolt. Upon rotation of the cam, the guide is rotated through the guide channel and the force of the cam guide is transferred to the deadbolt causing the deadbolt to move between its extended and retracted positions. Opposing leaf springs are mounted to the deadbolt, along the length of the elongated opening to engage the cam and prevent binding between the cam and deadbolt during actuation of the deadbolt.

Abstract: A lock mechanism has a housing and a latch extending from the housing. The latch has an extended position and a retracted position. The mechanism includes apparatus for biasing the latch to the extended position, apparatus for defining a locked mode and an unlocked mode, and apparatus including a clutch for transferring an operator input motion to move the latch to the retracted position in the unlocked mode. The clutch includes a cam surface and a cam follower. A spring biases the cam follower toward the cam surface and a second override spring which biases the cam follower to compensate for any off-center relationship due to wear, excessive force and/or assembly misalignment and to prevent jamming.

Abstract: A mortise lock is provided including a housing for a latch bolt and a deadbolt which are mounted in the housing for movement between a retracted position where the latch bolt and deadbolt are inside the housing and an extended position where a portion of the latch bolt and deadbolt extend from the housing. A key-operated cylinder in the housing operates to move the deadbolt between the retracted and extended positions. A latch operator is also provided for retracting both the latch bolt and the deadbolt. A moveable blocking element in the housing prevents movement of the latch operator in one position of the blocking element. A locking lever operatively connects the deadbolt and the blocking element so that when the deadbolt is extended the blocking element is automatically moved to the position blocking the latch operator. The locking lever comprises an arm member integral with the locking lever.

Abstract: Mailbox locks and mailboxes comprising such locks are disclosed. The lock includes a key lock mechanism and a strike bar that can be mounted on exterior surfaces of a housing and a door that defines an interior volume into which mail is deposited. In an embodiment, the key lock mechanism includes a key lock cover plate defining a slot for mounting the key lock mechanism to the door with screws or other fasteners inserted through the door and into the slot. Sliding the key lock mechanism along the slot permits alignment of the key lock mechanism. The strike bar also defines a respective slot. The strike bar also defines a locking cavity and an opening cavity such that, with the lock in a locked position, a bolt of the key lock mechanism can be captured by the locking cavity so that the door can be opened only by unlocking the lock. Whenever the bolt is engaged in an opening cavity, the door is readily openable without a key.

Abstract: A door lock device is disposed on a door (1). The door (1) has an upper through hole (11) and a lower through hole (12). The door lock device has a latch bolt device (6) disposed on the door (1), a case frame (2) having an upper hollow cylinder (22) inserted through the upper through hole (11) and a lower hollow cylinder (23) inserted through the lower through hole (12), a first pressing plate (8) disposed on the case frame (2), a core (3) disposed in the upper hollow cylinder (22), a lock fastener device (4) disposed in the upper hollow cylinder (22), and a drive mechanism (5) disposed in the upper hollow cylinder (22). The drive mechanism (5) has a rack (53) to drive the latch bolt device (6). A locking plate (71) covers the upper through hole (11) and the lower through hole (12). A decoration plate (72) is disposed on the locking plate (71). A second pressing plate (8′) is disposed on the decoration plate (72).

Abstract: A lock with a latch bolt (41) has a translating part (65), which can be moved by a hub which can be turned by a button and/or key operation so that it controls an additional extension of the latch bolt (41) into a locking position and blocks the latch bolt in this locking position.

Abstract: This invention relates to a bolt unit and frame arrangement. In particular it relates to a lockable bolt unit having a slidable bolt, typically for securing two moveable panels together or for securing one moveable panel to a fixed frame.

Abstract: A lock mechanism comprises a plug slidably to a home position into a cavity of a block which plug has a recess for receiving side-by-side plates.Said block has a receptacle for receiving a similar set of spring biased plates. The front base of said plug a keyway with rectangular cross section communicates with said recess at a position close to the bottom thereof. A key is also provided for said mechanism which is made up of as many bars as are the plates.The plates in said recess have a bevelled corner. The bevel plane of the plates and of the key bars being the same.When the key is inserted home into said plug the bevelled point of each bar of the key engages the bevelled corner of a corresponding plate in the recess and lifts it to come flush with its upper edge with said recess aperture whereby the mechanism is unlocked.When the key is withdrawn from said slot the plates in said receptacle are moved by the related springs to enter the plug recess and block the mechanism thereby.

Abstract: A lockset has a die cast, monolithic body pivotally supporting a lever handle which upon actuation and through fingers engages tabs of a lock bolt assembly for selective linear retraction of the latter. A rotatable knob carried by the body through a spindle and a guide plate mounts a cam plate which acts, upon rotation of the knob in either direction, to retract the bolt assembly. The bolt has opposed U-shaped guides which receive the guide plate and guide the bolt laterally and vertically. A lock has a lock lever which positively engages the bolt assembly to lock the latter in place. A follower lever and the lock lever are pivoted about a common axis. The follower responds to a barrel lock between two positions to lock and unlock the lock lever from the bolt assembly. The lock lever also responds to a latch pin independently of the follower on the opposite side of the lockset from the barrel lock, to lock and unlock the bolt assembly.