Ventilating system for the passenger compartment of motor vehicles

Claim 1

IN A MOTOR VEHICLE BODY HAVING A PASSENGER COMPARTMENT, A ROOF STRUCTURE, PILLARS SUPPORTING SAID ROOF STRUCTURE AT THE REAR THEREOF, AND A REAR WINDOW LOCATED BENEATH THE REAR EDGE OF SAID ROOF STRUCTURE AND EXTENDING TRANSVERSELY OF SAID VEHICLE BODY BETWEEN SAID PILLARS; A VENTILATION SYSTEM COMPRISING AN EXHAUST DUCT WITHIN SAID ROOF STRUCTURE EXTENDING LATERALLY THEREACROSS ABOVE SAID WINDOW, AIR INLET OPENINGS PROVIDING COMMUNICATION BETWEEN SAID PASSENGER COMPARTMENT AND EXHAUST DUCT, AT LEAST ONE OF SAID PILLARS HAVING SPACED INTERIOR AND EXTERIOR WALLS FORMING A CHAMBER THEREIN IN COMMUNICATION WITH SAID EXHAUST DUCT, AT LEAST ONE BAFFLE BEING PROVIDED AT THE TOP OF SAID CHAMBER TO PREVENT WATER CARRY-OVER FROM SAID CHAMBER INTO SAID EXHAUST DUCT, AND OPENINGS IN SAID EXTERIOR WALL PLACING SAID CHAMBER IN COMMUNICATION WITH THE ATMOSPHERE, SAID AIR INLET OPENINGS, EXHAUST DUCT, PILLAR CHAMBER AND INTERIOR WALL OPENINGS PROVIDING FOR EXHAUST AIR FLOR FROM SAID PASSENGER COMPARTMENT TO THE ATMOSPHERE.