EASILY OPENABLE CONTAINER LID Russian patent published in 2018 - IPC B65D41/32 B65D53/06 B65D41/42 

FIELD: storage.

SUBSTANCE: easily openable container lid (2) which has a shell (4) and a liner (6), embossed on the inner surface of a top panel wall (8) of the top shell panel and has a pair of scores (20a and 20b) formed in the shell, is improved as follows: when the liner is embossed, it is neither deformed nor damaged. Liner is adhered over the entire surface thereof to the inner surface of the top panel wall. Second portions (20a-2 and 20b-2) of the pair of scores are formed by forming grooves on the inner surface side of the shell, and are extended along the peripheral edge of the liner radially outwardly of the liner. Moreover, the liner has a thin-walled central section (22) and a thick-walled peripheral edge section (24), and is configured to have a downwardly protruding outer sealing ridge (26) formed in a radially outward region of the thick-walled peripheral edge section. Thickness (T1) of the thin-walled central section and the thickness (T2) of the thick-walled peripheral edge section are set within required ranges.

EFFECT: when making an impact on the lid of the container, it is possible to avoid damage to the seal of the throat section as far as possible; while it is possible to achieve a sufficient reduction in the cost of production.

5 cl, 4 dwg, 1 tbl, 5 ex