Abstract: A locking device for obstructing towing of an unattached trailer has a lock base and a single-armed curved interlock bracket. The lock base has a cylindrical leg. The single-armed interlock bracket has an grooved arm sliding along an aperture on the cylindrical leg and may be permanently attached to the lock base. Grooves on the arm allows a locking means to be engaged with the lock bracket at different height. When engaged, the locking means may restrict the interlock bracket from swirling. The open end of the interlock bracket provides flexibility to accommodate trailer couplers with different cap/rim sizes. The cylindrical leg may have a sealed bottom end and may function as a handle. The locking device may also feature a push-in locking mechanism to lock the interlock bracket in a position without using a key.

Abstract: A security door lock for security back locking of a door lock. The door lock enables back locking of the door lock from inside in such a way that the lock cannot be opened with a key or a picklock. The lock includes a lock body, a lock bolt inside the lock body, a lock bolt shifter inside the lock body, a lock bolt shifting lever protruding from the lock bolt shifter, a slot in the lock body for receiving the lock bolt shifting lever which is turnable between its inclined end positions in the slot when the lock bolt shifter is rotated, a twist knob inside the door for rotating the lock bolt shifter, a key cylinder outside the door, and an opening spindle present between the twist knob and the key cylinder. The opening spindle is in engagement with the lock bolt shifter for shifting the lock bolt by tuning the key or the twist knob.

Abstract: A magnetic coding free pin type lock cylinder structure includes: a lock cylinder housing (101), a lock knob (104) disposed within the lock cylinder housing (101), a lock cylinder front end cover (102) and a lock cylinder rear end cover (103). Pin vertically moving grooves (114) and pin horizontally rotary grooves (113) are provided on an inner wall of the lock cylinder housing (101). An unlocking hole (116) for a magnetic coding key (115) is provided on the lock knob (104). A plurality of pin vertical sliding grooves (112) is provided on an outer wall of the lock knob (104). Free pins are provided in at least one of the plurality of pin vertical sliding grooves (112), and the free pins are big pins (107) or small pins (108).

Abstract: The invention relates to an anti-theft device (1) for a steering column of a motor vehicle, said device (1) comprising: a bolt (7) mounted such that it can move in translation in the device (1) between a position in which the steering column is locked and a position in which the column is released, and a means (15) for controlling the movement of the bolt (7). The device also comprises a drive means (9) connecting the control means (15) and the bolt (7), said drive means (9) including a housing (20) that receives at least part of a locking element (19) when the locking element (19) is in the rest and active positions. The aforementioned locking element (19) is configured to co-operate with the control means such as, in the active position, to lock the drive means (9) when the bolt (7) is in the locked position.

Abstract: An electronic sensor and key operated lock is disclosed which provides users with the option to use at least one of a manually operated mechanism or for example a biometric sensor to unlock the lock. The lock integrates both the manually operated mechanism and a biometric sensor into one device. The manually operated mechanism and a biometric sensor are coupled to a common toggle switch so that operation of at least one of the manually operated mechanism and the biometric sensor moves the toggle switch and a shackle from locked and unlocked positions.

Abstract: A key device (10) includes a generally elongate shaft portion (12) including a key combination surface (16) that has a plurality of key cut stations (18) for forming telescoping key cuts at each key cut station (18). Each key cut station (18) has a telescoping maximum adjacent cut specification (MACS) that defines a maximum depth of adjacent. The key device (10) also has a non-MACS key cut (20), formed at one or more of the key cut stations (18), for interfacing with a first pin (24) of a given telescoping plug pin. The non-MACS key cut (20) is dimensioned to leave material in the elongate shaft portion (12) for forming another key cut (20A) for interfacing with a second pin (26) of the given telescoping plug pin.

Abstract: A secure key storage device integrable with an electronic lock having a mechanical key override activation and a mechanical lock. The storage device contains and provides a key which can open the electronic lock on a mechanical override basis via the mechanical lock and is comprised of a locking key caddy compartment which contains the key, and which is provided with a mechanical lock opening member to effect opening thereof. The secure key storage device has a mounting element with a structure configured to be fitted with and securely supported by the mechanical lock of an existing electronic lock on the door and wherein the locking key caddy compartment element is integrated with the mounting element either by fastening elements or as a one piece structure. Alternatively, or in addition a spare battery compartment element is provided with a spare charged battery.

Abstract: A quick release mechanism for bicycle parts that comprises a locking mechanism and a rod. The locking mechanism comprises a fixed locking core and a rotating housing handle. One end of said rod is attached to the fixed locking core. Said rotating housing handle has a ring-shaped base with two rings separated by an inner cavity. The inner side of said ring-shaped base has several punctures in it. Said rotating housing handle has locking pins designed to be inserted into said punctures in said inner side of said ring-shaped base of the rotating housing handle. Said locking pins are designed to be inserted into said fixed locking core. Said rotating housing handle serves both as a rotating housing of said locking mechanism and as a handle of said quick release mechanism.

Abstract: A self-learning lock cylinder assembly or lock tumbler and tools capable of teaching the self-learning key configuration of a pre-existing key is disclosed. The individual performing the self-learning does not need to have prior locksmith experience. The individual performing the self-learning procedure can verify that the original key and copies of the original key function properly within the lock cylinder prior to final assembly and installation in the lock through a self-learning test housing. The pre-installation testing eliminates problems associated with an incorrectly assembled lock cylinder.

Abstract: An environment friendly metal mechanical password lock cylinder capable of setting repeatedly password keys comprises password rebound leaves, a label panel, a fastener locking plate, a positioning plate, a fastener reset plate, an axis panel and a control plate. The label panel is fixedly connected with the positioning plate; the fastener locking plate is disposed between the label panel and the positioning plate; the fastener reset plate is slideably disposed on the positioning plate; the axis panel is matched and connected with the label panel; the control plate is slideably disposed on the axis panel; the password rebound leaf runs through the label panel and the positioning plate in sequence and corresponds to the control plate; the number of the password rebound leaves is set to be several; and at least one password rebound leaf in the plurality of password rebound leaves is provided with positioning blocks matched with the control plate.

Abstract: The chain lock of the present invention includes a lock body and a linkage chain. The lock body has a combination lock core and a socket, wherein the combination lock core has a plurality of discs. The linkage chain is formed via linking a plurality of link plates and has a first end portion and a second end portion, wherein the first end portion is joined with the lock body. The second end portion can be inserted into and secured to the socket. The combination lock core locks the second end portion when the second end portion has been inserted into the socket The linkage chain can be wound around the lock body when the second end portion is unlocked.

Abstract: A key cylinder device includes a rotor resiliently mounting tumblers that are aligned by insertion of a mechanical key, a rotor case rotatably housing the rotor that is inserted in a direction opposite to an insertion direction of the mechanical key, and a cylindrical sleeve arranged around an outer peripheral surface of the rotor and fixed to an inner surface of the rotor case. The sleeve includes a hole that allows the tumblers to be disengaged when the mechanical key is inserted and to be engaged when the mechanical key is extracted.

Abstract: A group of embodiments for enabling the replacement of damaged shackles for multiple types of portable locks is disclosed. The embodiments have the ability to alter the shackle size and configuration for multiple types of portable locks by substituting one type of shackle with a different shackle, with no tools or special skills required.

Abstract: A lock system for controlling access, for example to a room or building, is disclosed. The lock system comprises a bolt module in which control of the bolt can be configured differently on the two sides of a leaf or door. Control of the bolt module may be provided by various locking modules, which are also disclosed herein. The bolt module is reversible for left handed or right handed operation. In one embodiment the bolt module comprises: a bolt moveable between a thrown position and a retracted position; and a first rotor assembly capable of accepting a drive element, the first rotor assembly arranged to drive the bolt. The bolt module may also comprise a second rotor assembly. The bolt module may comprise an anti-thrust member obstructing driving back of the bolt under action of an external force on the bolt. The bolt module may comprise a lockable cover.

Abstract: A code combination lock comprises a lock body whereto a first latch hook and a second latch hook are connected, a first catch 18 fixed in the first opening direction of the case, a second catch 19 fixed in the second opening direction of the case. When locked, the first latch hook engages with the first catch and the second latch hook engages with the second catch. The code combination lock further comprises a push module, a drive module, a lock blade and a code module. The code module is arranged to push the lock blade to fix or unfix the push module such that the push module could push the drive module to lock/unlock. With this kind of code combination lock, one can lock/unlock without having to put in code repeatedly.

Abstract: The plow lock is a device that is adapted for use with a plow or a snowplow in order to immobilize the plow or snowplow from use. The plow lock includes a first plate affixed to a second plate. The second plate forms a right angle with the first plate. The first plate includes a first lock hole thereon. The second plate is further defined with an outer surface. The outer surface of the second plate is affixed to a wedge member. The wedge member extends outwardly from the second plate. The plow attachment bracket includes a plow lock hole that aligns with the first lock hole of the first plate such that a lock is locked thereon so as to secure the plow lock onto the plow attachment bracket thereby preventing a vehicle from attachment to the plow attachment bracket.

Abstract: A gun lock for use in securing a weapon within a gun rack of a police vehicle or the like utilizes a housing supporting a pair of curved lock gates in curved travel paths between an abutting closed configuration and a separated open configuration. The curved lock gates are constrained in curved travel paths by a top plate and a lower plate and each define a curved gear rack. A coupling gear is rotatably supported within the housing and simultaneously engages both curved gear racks to provide movement of the lock gates between open and closed configuration. A solenoid operated latching mechanism secures the lock gates from movement away from the closed and locked configuration in the absence of an electrical activation. A key override is provided in the event of an electrical failure within the host vehicle.

Abstract: A combination lock and pump for use with a bicycle. The combination lock and pump has a flexible cable including an inflation tube running parallel with a metal rope or chain. The flexible cable has a male end preferably including a lock bolt or shackle and a piston-cylinder pump. The flexible cable also has a female end preferably including a lock cylinder with a key hole and one or more apertures to receive either a bicycle tire's valve stem or the male end's lock bolt or shackle. When used as a lock, the combination secures the bicycle from theft by looping the flexible cable around the bicycle and locking together its male and female ends. When used as a pump, the combination's female end attaches to the bicycle tire's valve stem and inflates the tire by actuating the pump of the male end.

Abstract: A closure device for containers for transporting radioactive substances, having a first and a second component each with a comb-like portion, wherein the comb-like portions, with the closure device locked, has a bolt element passing through them. The bolt element has a head with an accommodating recess running transversally to the longitudinal axis of the bolt element, that one of the components has a through-opening which, with the bolt passing through the comb-like portions, is aligned with an accommodating recess.

Abstract: A combination lock is provided, the combination lock having a rotary latch configured for rotation between a locked position and an unlocked position, the rotary latch rotating in a first plane; and a bolt configured for movement between a first position and a second position along a second plane the second plane being oriented at a different location than the first plane, the bolt engaging the rotary latch in the first position such that rotation of the rotary latch from the locked position to the unlocked position is prevented.