초록 ▼

An easy-open, reseable closure assembly for a beverage can (10) comprises a metal lid (12) and two threadedly connected molded plastic closure elements (40, 60) with engageable annular reseal surfaces (46, 76). The lid is scored (30) to define a circular tear panel (28) and a hinge (32). The spout e

An easy-open, reseable closure assembly for a beverage can (10) comprises a metal lid (12) and two threadedly connected molded plastic closure elements (40, 60) with engageable annular reseal surfaces (46, 76). The lid is scored (30) to define a circular tear panel (28) and a hinge (32). The spout element (40) is attached to the lid (12) with the bottom surface of the cap element (60) directly above and aligned with the periphery of the tear panel (28). Rotation of the cap element (60) by a user ruptures the tear panel and pivots the tear panel (28) downward about the hinge (32), providing a passage through the spout element (40) for pouring and driking. Initial rupture and rupture propagation of the tear panel (28) is controlled by the spacing of the cap element (60) from the tear panel (28) and their configurations. When the cap element (60) is replaced on the spout (40), reseal surfaces (46, 76) engage.

대표청구항 ▼

[I claim:] [1.]a stationary closure element mounted on the lid so as to enclose the tear panel, which stationary closure element has an upwardly facing annular reseal surface and helical threads surrounding an axial pouring passage;a rotatable closure element having a downwardly facing annular resea

[I claim:] [1.]a stationary closure element mounted on the lid so as to enclose the tear panel, which stationary closure element has an upwardly facing annular reseal surface and helical threads surrounding an axial pouring passage;a rotatable closure element having a downwardly facing annular reseal surface, helical threads, and a bottom bearing surface;the threads of the stationary element and rotatable element engaging so that rotation of the rotatable element in one direction drives the rotatable element downward toward the lid and rotation of the rotatable element in the opposite direction, if continued, results in disengagement of the threads and allows removal of the rotatable element from the stationary element;the bottom bearing surface of the stationary element being aligned with the periphery of the tear panel, whereby rotation of the rotatable element in said first direction, if continued, initially ruptures the weakened line at a predetermined place distant from the hinge, propagates the rupture in two directions toward the hinge, and eventually causes the tear panel to pivot downward about the hinge.