Utensil for opening e.g. jam container, has body closed by membrane seal having tab on its periphery, where tab has length equal to or higher than one third of dimension of body`s opening plane and force is applied on tab to un-stick seal

摘要

The utensil (B) has a body (2) of a rigid container (A) with a depth lesser than or equal to half of the dimension of the body`s opening plane, where the body is made of stamped aluminum or thermoformed plastic material. A membrane seal (1) closes the body, and has a tab (4) on its periphery and below a bending zone (8). The tab has a length equal to or higher than one third of the dimension of the plane, and a tensile force (T) is applied on the tab for progressively un-sticking the seal. A retractable stop (6) supports the container to limit descending movement of the container by gravity.