| 摘要 |
A chemical dispensing anti-burglary device is described in which a chemical irritant such as tear gas is discharged into the area to be protected when an intruder opens a window or opens a door or enters an unauthorized area with which the device is associated. The anti-burglary device employs a spring biased pressurized container for discharging a chemical through a passageway and nozzle. A mechanical trigger for releasably retaining the pressurized container in a cocked position, an improved mechanical and electromechanical trigger to release the chemical, and a built in safety to deactivate the device which makes it virtually impossible to accidentally discharge the device are described.
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