A tubular lock assembly has a tubular lock, a cover, and a disassembling unit. The tubular lock has an annular keyhole and a cover screw hole enclosed by the keyhole. The cover is detachably assembled with the tubular lock, and has a covering board segment, a screw rod segment, and a first fitting segment. The covering board segment covers the keyhole. The screw rod segment is detachably screwed in the cover screw hole of the tubular lock. The first fitting segment is formed on the covering board segment. The disassembling unit has a second fitting segment. The second fitting segment corresponds in shape and size with the first fitting segment of the cover, such that the second fitting segment is adapted to engage with the first fitting segment, and the disassembling unit is capable of rotating the cover.

A tubular lock assembly has a tubular lock, a cover, and a disassembling unit. The tubular lock has an annular keyhole and a cover screw hole enclosed by the keyhole. The cover is detachably assembled with the tubular lock, and has a covering board segment, a screw rod segment, and a first fitting segment. The covering board segment covers the keyhole. The screw rod segment is detachably screwed in the cover screw hole of the tubular lock. The first fitting segment is formed on the covering board segment. The disassembling unit has a second fitting segment. The second fitting segment corresponds in shape and size with the first fitting segment of the cover, such that the second fitting segment is adapted to engage with the first fitting segment, and the disassembling unit is capable of rotating the cover.

Apparatus and associated methods relate to an access control system having a planar interlocking mechanism including two reflectively symmetric rotating moon gears mechanically coupled by a linear slide configured to respond to rotation of the moon gears. In an illustrative example, the moon gears are mechanically coupled by the linear slide via respective actuating cams. The moon gears may be provided, for example, with locking cams configured to releasably secure the linear slide via a corresponding follower on the linear slide. Rotation of one moon gear into a first mode may, for example, place the other moon gear in a second mode, and vice versa. Each moon gear may be configured, for example, to be operated by a removable peg. Various embodiments may advantageously be configured such that release of a removable peg from one moon gear captures a peg in a corresponding moon gear.

Apparatus and associated methods relate to an access control system having a planar interlocking mechanism including two reflectively symmetric rotating moon gears mechanically coupled by a linear slide configured to respond to rotation of the moon gears. In an illustrative example, the moon gears are mechanically coupled by the linear slide via respective actuating cams. The moon gears may be provided, for example, with locking cams configured to releasably secure the linear slide via a corresponding follower on the linear slide. Rotation of one moon gear into a first mode may, for example, place the other moon gear in a second mode, and vice versa. Each moon gear may be configured, for example, to be operated by a removable peg. Various embodiments may advantageously be configured such that release of a removable peg from one moon gear captures a peg in a corresponding moon gear.

A hoistway landing door locking system includes an elevator shaft and an elevator car disposed within the elevator shaft and moveable therein between a plurality of access openings located at a plurality of levels of the elevator shaft. Also included is a mechanical locking assembly disposed proximate at least one of the access openings, the mechanical locking assembly operable to switch the access opening between a locked condition and an unlocked condition. Further included is an electromagnetic locking assembly operable between an energized condition and an unenergized condition, wherein the energized condition is required to switch the mechanical locking assembly from the locked condition to the unlocked condition.

A hoistway landing door locking system includes an elevator shaft and an elevator car disposed within the elevator shaft and moveable therein between a plurality of access openings located at a plurality of levels of the elevator shaft. Also included is a mechanical locking assembly disposed proximate at least one of the access openings, the mechanical locking assembly operable to switch the access opening between a locked condition and an unlocked condition. Further included is an electromagnetic locking assembly operable between an energized condition and an unenergized condition, wherein the energized condition is required to switch the mechanical locking assembly from the locked condition to the unlocked condition.

The present disclosure relates an electronic locking system. In certain embodiments, the electronic locking system includes a passive electronic lock, active electronic key and passive electronic key. The passive electronic key stores a passive digital key, and the active electronic key stores an active digital key. Each of passive and active electronic keys includes a communication channel and an electronic key power supply port. The active electronic key includes electrical power source providing electrical power supply to active electronic key, passive electronic lock and passive electronic key through passive electronic lock to operate passive electronic lock. When both active and passive electronic keys are inserted into respective electronic keyholes of passive electronic lock, both active and passive digital keys are transmitted to passive electronic lock, passive electronic lock can be locked and unlocked only when both active and passive digital keys received match prestored active and passive digital keys respectively.

A machine lock that can be integrated or a separate device for securing any machine including voting election machines or any other security purpose having adaptability to be used with any and all devices and machines. The machine lock can also be used with an machine involved in the voting process (or any other type of machine not involved with the voting process), including but not limited to ballot openers, poll books, optical scanners, tabulators, printers, electronic voting management systems, universal voting systems, folded ballot processing machines, and voter registration management equipment. It will require two or more opposed observers, each with a unique way to open two or more locks, with a mechanical keys, keypads, combination locks, cards (including magnetic and all other types), or cell phones, remote controls or by any other method to turn on the machine, or to turn on certain functions within any machine.

A machine lock that can be integrated or a separate device for securing any machine including voting election machines or any other security purpose having adaptability to be used with any and all devices and machines. The machine lock can also be used with an machine involved in the voting process (or any other type of machine not involved with the voting process), including but not limited to ballot openers, poll books, optical scanners, tabulators, printers, electronic voting management systems, universal voting systems, folded ballot processing machines, and voter registration management equipment. It will require two or more opposed observers, each with a unique way to open two or more locks, with a mechanical keys, keypads, combination locks, cards (including magnetic and all other types), or cell phones, remote controls or by any other method to turn on the machine, or to turn on certain functions within any machine.

A machine or device lock enclosure that can be integrated or a separate device for securing any machine or device including voting election machine or device or any other security purpose having adaptability to be used with any and all devices and machine or devices. The machine or device lock enclosure can also be used with an machine or device involved in the voting process including but not limited to ballot openers, poll books, optical scanners, tabulators, printers, electronic voting management systems, universal voting systems, folded ballot processing machine or devices, and voter registration management equipment. It will require two or more opposed observers, each with a unique way to open two or more locks, with a mechanical keys, keypads, combination locks, cards or cell phones, or by any other method to turn on the machine or device, or to turn on certain functions within any machine or device.