Fecha de publicación: 13/12/1977 Fuente: WIPO "royal booby" A chemical dispensing anti-burglar booby trap device is disclosed from which a chemical such as tear gas is discharged into an area to be protected when an intruder opens a window or a door or forces open a window or a door to enter an unauthorized area with which the device is associated. The anti-burglar booby trap device employs a spring biased actuating member for discharging a chemical from a pressurized container. An improved trigger for releasably retaining the actuating member in a cocked position and for releasing the chemical are described.