Abstract: A security device for tagging a bottle has a body defining a sleeve into which part of the bottle neck and its closure are received. A housing is defined to one side of the sleeve and first and second catch members are pivoted within the housing for movement between free and locking positions. When in their locking positions, the catch members project into the sleeve to engage behind a shoulder on the bottle neck or the closure, to resist removal of the device. An operating member is also pivoted to the housing for movement between open and closed positions, springs being arranged between the operating member and the first and second catch members to urge the catch members to their respective locking positions. A magnetically-releasable latch is arranged to hold the operating member in its closed position unless the latch member is acted upon by an external magnetic field.

Abstract: A security device for a bottle having a neck fitted with a closure comprises a sleeve adapted to fit over the neck of the bottle and a catch member pivoted to the sleeve for movement between free and locking positions. The catch member has an inner portion which projects through an aperture in the sleeve, into the bore thereof, which inner portion is adapted to engage a shoulder of the bottle neck or an edge of the closure, thereby to resist removal of the sleeve from a bottle neck when the device has been fitted thereto. A magnetic armature is connected to the catch member such that an applied magnetic field will move the armature so as then to move the catch member to its free position and thereafter permit removal of the sleeve from the bottle. A housing encloses the release mechanism and also a radio-frequency or other security responder whereby unauthorized removal of a bottle carrying the security device from a protected area will sound an alarm.

Abstract: A security device for a bottle having a neck fitted with a closure comprises a sleeve (10) adapted to fit over the neck of the bottle and a catch member (26) pivoted to the sleeve (10) for movement between free and locking positions. The catch member has an inner portion (13) which projects through an aperture (12) in the sleeve, into the bore thereof, which inner portion (13) is adapted to engage a shoulder of the bottle neck or an edge of the closure, thereby to resist removal of the sleeve (10) from a bottle neck when the device has been fitted thereto. A magnetic armature (38) is connected to the catch member (26) such that an applied magnetic field will move the armature (38) so as then to move the catch member to its free position and thereafter permit removal of the sleeve from the bottle. A housing (11) encloses the release mechanism and also a radio-frequency or other security responder whereby unauthorised removal of a bottle carrying the security device from a protected area will sound an alarm.