公开(公告)号：US3749275A

公开(公告)日：1973-07-31

申请号：US3749275D

申请日：1971-12-27

Applicant: ALUMINUM CO OF AMERICA

Inventor： SMITH G ,  DIEKHOFF H

IPC: B65D17/00 ,  B65D17/32

CPC classification number: B65D17/4012

Abstract: An easy opening device is provided which includes a score line in the container wall defining an opening flap adjacent an edge of the container wall and a tab having a nose end overlying the opening flap and affixed thereto and a handle end toward the opposite edge of the container wall with a line of weakening in the tab between its nose and handle ends for depressing the handle end of the tab to a non-obstructing position on the container wall, and which further includes an upwardly embossed hook in the container wall for engagement over an edge portion of the handle end of the tab to restrain it in a non-obstructing position on the container wall. A method of forming an embossed hook for engaging a tab is also provided.

Abstract translation: 提供了一种容易打开装置，其包括在容器壁中的刻痕线，其限定了邻近容器壁的边缘的开口翼片和突出部，该突出部具有覆盖开口翼片并固定到其上的鼻端部和朝向相对边缘的手柄端部 容器壁在其鼻部和手柄端之间的突舌中具有弱化线，用于将突出部的手柄端压入容器壁上的非阻碍位置，并且还包括在容器壁中的向上压花的钩，用于接合 突出部的手柄端部的边缘部分将其限制在容器壁上的非阻碍位置。 还提供了形成用于接合突片的压花钩的方法。

公开(公告)号：US3741141A

公开(公告)日：1973-06-26

申请号：US3741141D

申请日：1971-09-20

Applicant: ALUMINUM CO OF AMERICA

Inventor： DIEKHOFF H ,  SCHRECKER H

IPC: B21D39/03 ,  B21D51/38 ,  B21D51/26

CPC classification number: B21D51/383 ,  B65D17/28

Abstract: Apparatus for fabricating a tab element having an opening for joinder to a container wall including a female die having an elongated recess and an outwardly disposed annular tab engaging surface. A male die having an upwardly directed boss and a surrounding annular tab supporting surface. The male die having a concave transverse wall connecting the die boss with the annular tab supporting surface. Aligning the tab opening with the die elements and establishing relative closing movement between the dies produces compressive reforming of the opening defining portion of the tab element to provide a convexly curved portion corresponding in curvature to the male die concave transverse wall. A method of reforming an opening defining wall in a tab element to provide a continuous wall which diverges from the upper tab surface to the lower tab surface by compressively reforming the continuous wall. A container wall having a removable sector with a tab element secured thereto by means of an integral rivet including a wall panel having a hollow integral rivet provided with a transverse end wall and a peripheral wall. A tab element having an attachment opening defined by a continuous wall and the rivet extending through the tab element with the continuous opening defining wall in contact with the peripheral rivet wall. The opening defining wall having a lower inwardly convexly curved portion in surface to surface contact with a portion of the peripheral rivet wall having an outwardly concave configuration.