Pneumatic propulsion transportation system

Claim 1

A PNEUMATIC PROPULSION TRANSPORTATION SYSTEM COMPRISING: (A) MEANS INCLUDING A GENERALLY HORIZONTAL WALL PORTION AND GENERALLY OPPOSED WALL PORTIONS ANGULARLY DISPLACED FROM SAID GENERALLY HORIZONTAL WALL PORTION AND DEFINING AN ELONGATED UPWARDLY OPENING GUIDEWAY, (B) A TRANSPORT VEHICLE DISPOSED IN OVERLYING RELATION TO SAID GENERALLY HORIZONTAL WALL PORTION FOR MOVEMENT LONGITUDINALLY OF SAID GUIDEWAY, (C) SAID VEHICLE HAVING A BOTTOM PORTION IN CLOSELY SPACED RELATION TO SAID GENERALLY OPPOSED WALL PORTIONS AND COOPERATING WITH SAID GENERALLY HORIZONTAL WALL PORTION TO DEFINE A PLENUM, (D) CONDUIT MEANS INCLUDING A DUCT EXTENDING LONGITUDINALLY OF SAID GUIDEWAY, ONE OF SAID WALL PORTIONS HAVING A PLURALITY OF LONGITUDINALLY SPACED OPENINGS FOR COMMUNICATION BETWEEN SAID DUCT AND GUIDEWAY, SAID CONDUIT MEANS BEING ADAPTED TO BE CONNECTED TO A SOURCE OF AIR UNDER PRESSURE AND OPERATIVELY CONNECTED TO SAID GUIDEWAY DEFINING MEANS AND DISPOSED TO DIRECT AIR UNDER PRESSURE TO SAID PLENUM IN A DIRECTION TO LEVITATE SAID VEHICLE AND PROPEL SAID VEHICLE IN ONE DIRECTION LONGITUDINALLY OF SAID GUIDEWAY, (E) A PLURALITY OF NORMALLY CLOSED VALVES EACH INDIVIDUAL TO A DIFFERENT ONE OF SAID LONGITUDINALLY SPACED OPENINGS AND EACH ARRANGED TO OPEN WHEN DISPOSED DIRECTLY BELOW SAID VEHICLE AND TO CLOSE RESPONSIVE TO MOVEMENT OF SAID VEHICLE AWAY THEREFROM LONGITUDINALLY OF SAID GUIDEWAY, (F) AND TIME DELAY DEVICES OPERATIVELY ASSOCIATED WITH EACH OF SAID VALVES TO HOLD SAID VALVES CLOSED FOR A PREDETERMINED TIME INTERVAL AFTER CLOSING THEREOF.