Device for releasing tear gas pref. into vehicle esp. taxi - includes logic guarding against inadvertent release or operation in circumstances posing threat to safety of traffic

摘要

The gas is released from the outlet (8) of a valve (7) on its container (6) when a lever (3) carrying a rotary wheel (5) is pivoted (4) by an electromagnet (2) in the same housing (1). The gas tube passes through connections (9-11) into the protected space. Overheated gas can escape only through a vent (12) to atmos. outside the vehicle.The electromagnet (2) is controlled by a timer (42) of the integrated output (40) from a logic circuit operating on the signal from e.g. an intrusion monitor (34). ADVANTAGE - Unwanted entry of gas into protected space is prevented reliably even in exceptional circumstances.