초록 ▼

A container (4) has a closure (15) which consists of a flange (6) and a lid (1) which are joined together all the way round by a failure zone (2). When the container is originally sealed the closure is inserted into the opening and the flange is fixed to a flanged top surface (5) of the container wh

A container (4) has a closure (15) which consists of a flange (6) and a lid (1) which are joined together all the way round by a failure zone (2). When the container is originally sealed the closure is inserted into the opening and the flange is fixed to a flanged top surface (5) of the container which surrounds the opening. The failure zone is located at the point at which the internal surface (3) of the opening meets the top surface of the opening. The lid is dished inwards within the failure zone in such a way that the outer edge of the dishing (7) forms a guide (10) with the internal surface (3). A surface (8) of the lid extending parallel with the top surface is connected to the guide (10). The lid is broken open and is torn along the length of the failure zone by a locally applied force. The application of force inwards will as a rule move the lid over the distance a until the surface (8) makes contact with a ledge (11) located inside the container (4). The surface (8) supporting the material of the lid thus forces the guide (10) against the wall of the container and holds the lid in a sealing position inside the opening. The lid adopts a similar position in a re-sealed container. Gripping devices, preferably in the form of stiffening ribs, make it easier to remove the lid from the position just mentioned.

대표청구항 ▼

A container construction comprising a container body adapted for containing a product and including an annular wall and an annular flange extending outwardly from said wall at an upper edge thereof, said container body defining an open mouth within said wall, openable closure means closing said open

A container construction comprising a container body adapted for containing a product and including an annular wall and an annular flange extending outwardly from said wall at an upper edge thereof, said container body defining an open mouth within said wall, openable closure means closing said open mouth for sealing the product in said container body, said closure means comprising a lid including an annular wall engaged within the annular wall of said container body and an annular flange extending outwardly from said annular wall of the lid adjacent the annular flange of the container body, and sealing means including a continuous, annular seal sealably and permanently connecting said annular flange of the container body with said annular flange of the lid to seal the product within the container body, said lid including an annular failure zone located radially inwards of said sealing means in a position in which the failure zone can be ruptured by application of force to said lid to separate the flange of the lid from the remainder of the lid whereupon said flange of the lid remains secured to the flange of the container body and said remainder of the lid is removable from the container body to gain access to the product in said container body, said remainder of the lid being thereafter insertable into said container body to close the same by re-engaging the annular wall of the lid with the annular wall of the container body, the disposition of said annular failure zone with respect to said sealing means and of said lid and container body being such that rupture of said failure zone is effected by relatively displacing said lid with respect to said container body whereafter said lid is removable from said container body by pulling said lid out of said body.