FIELD: tare and containers.
SUBSTANCE: invention relates to containers made of polyester which can be filled with hot liquid. Proposed container has side wall with upper part, central part, lower part, and base. Central part includes vacuum wall section with regulating part and initiating part. This section is arranged crosswise relative to longitudinal axis and it folds up vertically parallel to axis. Regulating part is tilted relative to longitudinal axis at more acute angle than initiating part. At not high vacuum force inside container appearing after cooling of hot liquid in container, initiating part will flex inwards forcing regulating part turn out and flex further inwards container to make central part compress. In compressed state, upper and lower parts of central part can contact each other to provide possibility of keeping load from above. Projecting ribs create additional support for container in compressed state. When releasing vacuum by removing cap from container, it regains its initial state.
EFFECT: provision of effective compensation of vacuum gauge pressure in container and stability of its surface, for instance, at labeling.
27 cl, 8 dwg
