the piston blocks the reapportioning passageways reallocating more of the available suction to other feet in the same system that remain unextended application_number US 94629497 A description the reapportioning suction foot and its inclusion in a suction foot system and a printing press are improvements in the teachings of u s pat no 4 580 773 the improvement aspects of the present invention are fully discussed herein for a detailed description of common aspects and embodiment dimensions please refer to u s pat no 4 580 773 the disclosure of which is hereby incorporated by reference a preferred embodiment of my invention fig1 is a printing press having a series of reapportioning suction feet 11 the printing press also has a suction system that supplies suction to each foot 11 the typical suction system includes a suction pump not shown a tube 12 and a series of hoses 13 one for each foot 11 each foot 11 includes a cylinder 21 fig2 with external side walls 22 a closed upper end 23 and a lower end 24 with a constricted aperture 25 the interior of the cylinder 21 defines a cavity 26 closely fitted within the cavity 26 is a piston 31 fig3 having a hollow shank 32 that extends downward through the constricted aperture 25 fig2 the hole of the hollow shank 32 fig3 extends upward through the piston 31 also closely fitted within the cavity 26 and pushing upward on the piston 31 is.