FIELD: transport, package.
SUBSTANCE: invention relates to bottles containing fluids, including those at pressure. Bottle plastic bottom has stiffening recesses comprising first recess that runs along transverse diametre of said base. Note that said first recess is arranged to form first main rib inside said base. Said rigidity recesses comprise additionally second recess running along second transverse diametre perpendicular to first transverse diametre along which first main rib runs. Second recess is arranged to make second additional rib. Note here that distance between first support surface and at least one lowest point of the first main rib exceeds that between at least one lowest point of second rib and bearing surface.
EFFECT: higher stability of bottle, maintaining higher inner pressure and load in piling bottles.
19 cl, 14 dwg
