Example product security devices and associated methods are provided. An example product security device may include a first jaw and a second jaw that are operably coupled together to slide between an open position and a closed position. The example product security device may include a locking mechanism. In a locked state, the locking mechanism may permit movement of the first jaw towards the second jaw but prevent movement away from the second jaw. The example product security device may also include a product engagement pin. The product engagement pin may fasten the product security device to a product by piercing through the product and being received by the second jaw. A shroud having a shroud orifice may surround the product engagement pin and be operably coupled to the first jaw such that the shroud is movable relative to the product engagement pin. The example security device may also include a signal emitting component, a QR code, a barcode, or combination thereof.

A magnetic locking mechanism includes a first housing, a second housing, and an unlocking member. The first housing includes a guiding member including a first through hole. The second housing includes a locking member including a telescopic rod. The unlocking member is configured to adsorb the locking member. When the locking member is moved along the guiding member to a preset position, the telescopic rod protrudes into the first through hole, and the second housing is locked to the first housing. When the unlocking member adsorbs the locking member protruded into the first through hole, the telescopic rod retracts from the first through hole, and the second housing is unlocked from the first housing.

Apparatuses, systems, and methods are disclosed for magnetic keyed locking. A cylinder is disposed in a housing. The cylinder is formed with an end opening and a plurality of side openings. The end opening communicates with an interior recess. A plurality of rotors are disposed in the side openings and pivotably coupled to the cylinder. The rotors include inner portions that extend from pivot points toward the interior recess, and outer portions that extend from the pivot points past an outer surface of the cylinder. One or more blocking bars are affixed to the housing. The one or more blocking bars are formed with a plurality of slots, and are disposed such that rotation of the cylinder is permitted when the rotors are aligned with the slots and limited when at least one rotor is non-aligned with a slot.

A security device for a retail item or packaging has housing that retains a gear that is operably connected to a pawl with two arms. One arm of the pawl is operably engaged by the gear. The other arm of the pawl is operably engaged with an unlocking key within the housing. The unlocking key is operably controlled by an unlocking tool by inserting a portion of the unlocking tool into a complementary portion of the unlocking key through a keyway formed in the housing. The unlocking key may have a magnet or components that are attracted to a magnet that enable the unlocking key to disengage a slot formed in the housing to allow the unlocking key to rotate to move the pawl. The housing may additionally be formed with a channel that allows a plurality of similarly constructed security devices to be tethered or daisy-chained together.

A magnetic child safety cabinet lock comprises a magnetic key, a lock belt and a lock body. The lock body comprises a lock shell and a push button. The lock shell is provided with a lock magnet B. The push button is movably arranged in the lock shell. The push button is provided with a lock tooth and a locking mechanism. The locking mechanism is provided with a lock magnet A. One end of the lock belt is fixedly connected with the lock shell, and the other end can move freely. The lock belt is provided with a tooth groove matching with the lock tooth. The lock magnet B and the lock magnet A control the locking mechanism by magnetic force to make the push button locked and fixed.

Described herein are example fluid guards that can be used with locking devices. Various aspects may be particularly applicable to electrical locks, but they may also be applicable to mechanical locks. A locking device guard can include a guard head, a guard body, and a hinge. The guard head may include a fluid absorber, a frame that is shaped to receive the fluid absorber, and a fastening mechanism. The guard body can be coupled with an electronic lock. The guard body can include an aperture that is configured to expose a face of the electronic lock.

A key comprises a body with a head and a blade and a magnet in the head. The key can be part of a key set including a plurality of keys. Each key can have a hole through the head, for example through approximately a center of the head. The key set can include a hub through the holes in the keys, such that the keys are coupled by and are rotatable around the hub. The magnets in the keys can silence, and resist, index, and lock rotation of the keys around the hub.

The invention relates generally a device that authenticates a user, operator, or object using multiple factors, thus decreasing the likelihood of unauthorized use. These factors preferably are independent from each other and difficult to defeat. By combining a mechanical key with a number of physically unclonable functions (PUF), the resulting system may be impossible to duplicate or defeat. The addition of the PUF can be deployed to mechanical keys or RFID's of different types without reducing the functionality of the first factors operation.

Wine and liquor bottles have a shrink-wrap seal, or other type, that is applied to the cap/cork end of the bottle. This seal material can be loaded with randomly magnetized particles, such as flakes of an alloy of neodymium, iron, and boron (NdFeB). The randomly magnetized particles provide a unique unclonable magnetic fingerprint to the bottle. The magnetic field may be recorded for one or more circumferential bands around the surface of the bottle's neck and used as a magnetic fingerprint to authenticate the bottle. Authentication can be performed by inserting the bottle in an appropriate fixture, which measures the magnetic fingerprint.

A suction-security system includes an adhesion membrane coupled to a swing arm. Rotation of the swing arm lifts a center portion of the adhesion membrane, creating suction and adhesion of the suction-security system to an anchor surface. The swing arm may have a low profile enabling use of the suction security system in an enclosure with minimal loss of available interior space. The system may include a shield protecting the adhesion membrane, and a bushing in the shield permits rotation of a portion of the shield without disturbing adhesion of the adhesion membrane to the anchor surface. The suction-security system may be used in consumer items such as purses, backpacks, briefcases, and suitcases.