公开(公告)号：US3591037A

公开(公告)日：1971-07-06

申请号：US3591037D

申请日：1969-02-24

Applicant: ALUMINUM CO OF AMERICA

Inventor： SCHRECKER HOWARD DALE ,  HEFFNER ROBERT EDWIN

IPC: B65D17/24

CPC classification number: B65D17/4011

Abstract: A container having a removable panel portion in one of its walls defined by a score line around the periphery of such portion and having a pull tab attached to the removable portion at its starting end and a plurality of parallel ribs downwardly embossed in the removable portion adjacent its starting end substantially parallel to a line tangent to the score line at such starting end, and additional parallel ribs downwardly embossed in the removable portion adjacent its terminal end substantially normal to a line tangent to the score line at such terminal end.