APPARATUS FOR PREVENTING A DRUNKEN DRIVER FROM OPERATING A MOTORCAR

摘要

An apparatus for preventing a drunken driver from operating a motor vehicle in which a suction pipe is connected at one end to a pump and its other end is open and faces into the interior of the passenger compartment of the vehicle so as to constitute a suction device for sucking air thereinto adjacent the driver's seat. A detecting device is also mounted in the passenger compartment for detecting the alcohol content in the air flowing through the suction pipe and upon operation of the detecting device due to the presence of excess alcohol, the vehicle is rendered inoperative. The apparatus may also include a sensing device for detecting pressure change within the suction pipe to render the vehicle inoperative due to excess pressure change.