Abstract: A product dispensing machine of the type having conveyor means for moving successive product carriers, each divided into a plurality of separate product carrying compartments, into registry with a product dispensing zone, including separately shiftable access doors or closures for the paths to the various compartments, is provided and employs reliable, predominantly mechanical, control means for normally maintaining the access closures in closed and locked condition denying access to the products, for automatically both unlocking and opening the access closures in a predetermined sequence in response to successive actuation of a dispense cycle actuating means (such as a coinage deposit unit) permitting removal of the product from each of the compartments of the registered carrier in turn, and for automatically moving the next product carrier into registry with the dispensing zone, after all of the products have been sequentially dispensed from the preceding carrier, permitting the sequential dispensing of all