Mechanical can vending system

Claim 1

AN ARTICLE DISPENSING SYSTEM COMPRISING MEANS PROVIDING A DISCHARGE OPENING FOR ARTICLES ARRANGED IN EACH OF A PLURALITY OF ADJACENT ARTICLE STORING COLUMNS A DOOR FOR EACH COLUMN MOUNTED FOR MOVEMENT TO A POSITION TO EXPOSE SAID OPENING AND DISCHARGE AN ARTICLE FROM ITS COLUMN, ELECTRICAL MEANS ENERGIZED ONLY IN RESPONSE TO THE PRESENCE OF COINAGE IN A COIN CONTROL MECHANISM, AND MEANS CONTROLLED BY SAID MECHANISM UPON ENERGIZATION THEREOF AND OPERATIVELY CONNECTED TO ALL OF SAID DOORS TO PERMIT AN OPENING OF ONLY ONE THEREOF TO DISCHARGE AN ARTICLE IN THE PRESENCE OF COINAGE IN SAID MECHANISM, SAID CONTROLLED MEANS COMPRISING A BLOCKING MEMBER FOR EACH DOOR ENGAGEABLE BY A PART ON THE LATTER TO BLOCK OPENING THEREOF, AN OPERATING MEMBER FOR EACH DOOR ENGAGEABLE WITH ONE OF SAID BLOCKING MEMBERS TO SHIFT THE SAME OUT OF BLOCKING POSITION, AND MEANS OPERATIVE WHEN SAID ELECTRICAL MEANS IS DE-ENERGIZED TO PREVENT ALL OF SAID OPERATING MEMBERS FROM SO SHIFTING ALL OF THE RESPECTIVE BLOCKING MEMBERS.