Patent ID: 6819233
Filing Date: 2004-11-16
Classification: B60R

Abstract:
A detainee escape detection device for use in a law enforcement vehicle, said vehicle having a driver's seat, said device comprising:at least one passenger seat having a passenger seat belt, said passenger seat belt having an integral sensor switch which provides an electrical path from a control wire to vehicle chassis ground when and only when said seat beat is unbuckled; a relay having an actuating coil with a first coil terminal and a second coil terminal, a normally open switch which is closed by energizing said actuating coil, said switch having a first switch pole and a second switch pole; a first electrical connection between said passenger seat belt sensor switch and said first coil terminal; a second electrical connection between a vehicle battery voltage source and said second coil terminal; a third electrical connection between a vehicle battery voltage source and said first switch pole; an external audible alerting means selected from the group of a horn, a siren, and a voice annunciator with a public address loudspeaker; and a fourth electrical connection between said vehicle alert means and said second switch pole such that when said passenger seat belt is unbuckled, an electrical path is immediately provided from the vehicle battery voltage source through said actuating coil to vehicle chassis ground, thereby actuating the relay switch to a closed position and providing an electrical path from the vehicle battery voltage source to said external audible alert means such that said alert means is activated immediately.