Abstract: The present invention provides an easy-opening container lid, having a tear member which is lifted and removed by a small, hard piece, such as a coin, etc. This container lid is specially constructed such that both the container lid body and tear member can be assured with respect to the safety thereof after the container lid has been opened. The container lid is provided with a pressure removing score so as to prevent accidents from occurring due to the internal pressure of the container when the container lid is opened.

Abstract: An extrusion cover for containers, which is made of a thin one-piece plate having a circular cutting line thereon, a frusto-conical recess in the central portion thereof defined by the cutting line, small projections on at least one portion of the tapered wall of the frusto-conical recess, and a circular plate engageable with the frusto-conical recess and adapted to push forwardly that portion of the thin plate which is inside the cutting line so as to allow the thin plate to be torn along the cutting line. This extrusion cover can be torn with a small amount of thrusting force but it is rarely opened by accident so that it is perfectly sealed at all times.

Abstract: The periphery of a tearably detachable portion of a pop-top can lid is defined by a continuous folded wall which extends inwardly of the can lid, by which a sharp edge is formed inwardly of the can lid after the detachable portion is torn from the can lid and, thus, a person is prevented from injuries that would be otherwise caused by the sharp edge.