Container with integrated plastic tear away membrane
A container is provided which includes a container body, a cap closure and a plastic membrane. The container body has a receiving area capable of holding a product. An open mouth surrounds the receiving area. A cap closure is arranged over the open mouth. The cap closure includes a fitment engageable around the mouth and a lid hingedly connected to the fitment. The plastic membrane is integrally molded with the cap closure and sealingly prevents leakage from the receiving area. The membrane includes a minor area non-frangibly attached to the fitment having a V-shaped outer border with sections of the border converging to a pivot point, and a major area tangibly attached along its perimeter to the fitment and to the V-shaped outer border. A pull tab is formed on a surface of the membrane at the pivot point.
1. A container comprising:
(i) a container body with a receiving area capable of holding a product, the container having an open mouth surrounding the receiving area;
(ii) a cap closure arranged over the open mouth, the closure comprising a fitment engagable around the mouth and a lid hingedly connected to the fitment: and
(iii) a plastic membrane integrally molded with the cap closure and surrounded by a supporting wall protecting upwards from the fitment, the membrane sealingly closing off the mouth, the membrane comprising:
(a) at one end a minor area non-frangibly attached to the supporting wall which is a shelf having a V-shaped outer border with sections of the border angularly converging to a pivot point and further comprising a pair of intersecting bars formed on the minor area and tracing the V-shaped outer border along at least 80% of a length thereof wherein the bars form an angle at a point of intersection ranging from 90 to 170°;
(b) a major area at a second end of the membrane in part being frangibly attached along a perimeter of said major area to the supporting wall and in another part of the perimeter to the V-shaped outer border; and
(c) a pull tab projecting outwardly from a surface of the membrane comprising a ring and a post, the ring being supported by the post and attached adjacent to the pivot point of the V-shaped outer border.
2. The container according to claim 1 wherein the bars form an angle at a point of intersection ranging from 110 to 150°.
3. The container according to claim 1 wherein the post at an end attached to the membrane features at least two feet broadening the end.
4. The container according to claim 1 further comprising on an undersurface of the shelf a central rib projecting downwardly into the container with a length oriented toward the pivot point.
5. The container according to claim 4 further comprising on the undersurface of the shelf a lateral rib flanking each side of the central rib, the flanking ribs having a longer dimension than that of the central rib.
6. The container according to claim 4 wherein the flanking ribs taper inward toward one another.