A padlock has a shackle having a long leg and a short leg, and a spindle with an extended member, the extended member engaged with the long leg of the shackle for movement together. The padlock also has a cylinder to receive a key for key operation, a stack of clutches and a plurality of dials engageable with the clutches to form a combination code, each clutch having an opening to receive the spindle. When the padlock is unlocked by the combination code, the spindle is engaged with the clutch stack for movement together along with the shackle. When the padlock is unlocked by the key operation, the spindle is disengaged with the clutch stack, allowing the spindle and the shackle to move upward relative to the clutch stack.

A helmet with lock assembly device for coupling to a bicycle helmet includes a helmet removably positioned on a head of a user. A strap is coupled to the helmet and releasably retains the helmet to the head of the user. A lock assembly is coupled to the helmet and includes a combination lock and a cord. The cord is releasably coupled to the combination lock and releasably secures the helmet to an extrinsic structure.

A novel portable padlock designed for operation in outdoor environments. The lock mechanism can be operated by built-in control electronics. The lock mechanism can be designed to be waterproof. The disclosed novel smart lock can communicate via GSM, Bluetooth and/or WIFI, with an easy-to-use web platform or app in order to control or operate various functions of the novel smart padlock. The integrated control electronics can additionally be equipped with a GPS that allows its traceability to be displayed. The padlock can include a built-in touch keyboard that allows the padlock to be opened with a passkey, in places where there is no cellular coverage and remote unlocking is not possible. The padlock can be opened via RFID card or GPRS, Wifi and/or Bluetooth signal, using a web application or app. The padlock can also include one or more integrated sensors to provide information concerning the opening, closing and cutting events for the padlock.

An electronic combination lock has a touch panel for combination code entry. If the combination code matches a preset code, a solenoid in energized to unlock the lock, allowing a user to pull up the shackle to open the lock. The user can be a master user, a regular user or a temporary user with each type of users having different level of access. For example, the master user can have unlimited number of times to use the master combination code, while a temporary user has only a limited number of times to use its temporary code as designated by the master user. In one embodiment, the lock can be opened with a key. In another embodiment, the user can enter the combination code from a detached electronic device.

A padlock comprising a lock body, a combination mechanism to control the movement of the cam-spindle vertically, a key mechanism to control the movement of the cam-spindle rotationally, more than one clutch that is mounted in the cam-spindle which controls the vertically movement of the cam-spindle, wherein the cam-spindle is configured to control the locking and unlocking of the combination mechanism, and wherein more than one dial is mounted in the lock body, a locking bolt contacts the shackle, and the shackle has a long leg and a short leg with a bolt-receiving-cutout.

A lockable enclosure includes a housing and an access door assembled with the housing and movable between a closed position and an open position. A latch is carried by the access door and is slideable along a first axis between a door latching and a door releasing position. A plurality of dials are carried by the access door and rotatable about a post extending along a second axis. When each of the plurality of dials is rotated to an unlocking orientation, an outer peripheral recess on each of the dials aligns with a corresponding dial engaging portion of the latch, allowing the latch to slide along the first axis from the door latching position to the door releasing position.

A padlock has a shackle having a long leg and a short leg, and a spindle with an extended member, the extended member engaged with the long leg of the shackle for movement together. The padlock also has a cylinder to receive a key for key operation, a stack of clutches and a plurality of dials engageable with the clutches to form a combination code, each clutch having an opening to receive the spindle. When the padlock is unlocked by the combination code, the spindle is engaged with the clutch stack for movement together along with the shackle. When the padlock is unlocked by the key operation, the spindle is disengaged with the clutch stack, allowing the spindle and the shackle to move upward relative to the clutch stack.

The disclosed embodiments include a method for tamper-proof protection of containers used for shipment of goods. The system contains a lock with electronic and mechanical components and a controller. A sensor is connected to a lock so that if forms a closed loop. The sensor can be an optical fiber or a distributed arrangement with an optical or an electrical shield. The electronics in the lock provide real time monitoring of the status of the lock. The lock cannot be opened or reproduced due to the signature of the closed loop which is stored in a remote server. Intrusions detected are relayed to an authorized recipient via a variety of communication channels. The data and control of the entire system is protected with several programs targeted to provide cybersecurity.

A lock, including: a retractable knob; and a knob release mechanism for retaining the retractable knob in a retracted position, wherein the knob release mechanism includes a damper with a gear that is slidably received within a set of grooves located in the retractable knob, and wherein the gear prevents rotation of the retractable knob unless it is in an extended position.

Some designs of combination padlock allow users of the padlocks to set the combinations that unlock the padlocks. However, the operations which a user must perform to set the combination of a padlock typically involve manipulating the shank of the padlock by pulling the shank away from the housing of the padlock or pushing part of the shank further into the housing of the padlock, rotating the shank through a certain angle, and holding or fixing the shank in this position while rotating dials of the padlock to change the combination. Such operations are fiddly, and it can be difficult to remember what steps are required to change the combination. Thus there is provided a combination padlock which goes some way towards overcoming or at least ameliorating one or more of the above problems.