Abstract: A locking mechanism is provided for use with at least one door and/or window (10) of a structure, the mechanism comprising at least one operating handle (12) and at least one electrical operating device (14). The operating device may comprise a fob (14) which may be manually operated, e.g. by a householder, from outside a building, to unlock a door or window. In a preferred embodiment, the locking mechanism comprises a first rotatable member (23) associated with the handle, a second rotatable member (24) spaced from the first rotatable member (23) and associated with a dead bold (18) and a control member (28) extending between the first and second rotatable members.

Abstract: A locking mechanism is provided operable to restrict unauthorised access to a structure such as a house, the locking mechanism being operable to permit external access by means of at least two remote control devices (14), (21), one of the remote control devices (14) being arranged for use by an occupant of the structure and another of the remote control devices (21) being arranged for use by an authorised official such as a police officer, fire officer or safety officer (e.g. a doctor, nurse, paramedic or ambulance personnel).

Abstract: A locking mechanism is provided which is operable to restrict unauthorised access to a structure such as a house, the locking mechanism being operable to permit external access, by means of at least one remote control device (14) operable from outside the structure, the locking mechanism being arranged to cooperate with at least one internal safety device (17), for example the smoke detector or fire alarm, the locking mechanism being such that if the safety device (17) is activated, this unlocks the locking mechanism to facilitate escape from the structure.