GASKETLESS COVER Russian patent published in 2017 - IPC B65D41/34 B65D41/18 B65D41/04 B65D53/00 

FIELD: packaging industry.

SUBSTANCE: invention relates to plastic gasketless covers, in particular to the gasketless cover, containing the improved sealing design for tighten interaction with the corresponding tank. The gasketless cover contains the integral single-part housing cover, having the upper wall part and annular skirt part, extending from the upper wall part. The cover also contains the annular outer sealing element, extending from the upper wall part for sealing engagement with the facing substantially outward with the sealing surface of the corresponding tank, and the plurality of spaced apart the circle sealing reinforcing elements, positioned on the inner surface of the skirt part, extending from it below and adjacent to the upper wall part.

EFFECT: reinforcing elements are configured to engage the outer sealing element member, while holding at that the impact loading from the influence on the sealing surface arc to limit bending of the outer sealing element outward, increasing the sealing interaction of the outer sealing element with the corresponding tank.

7 cl, 3 dwg