ONE-PIECE LID FOR CARTONS
First Claim
1. A one-piece lid for carton packages with tab adapted to be placed in the pouring opening of a carton package, comprising:
- a semicircular flat base divided in two circular sections and two diametrically opposed parallel straight sections, such base is locked to the container by means of an induction process;
a circumferential step with a smaller diameter than that of the base;
a semicircular skirt, with a smaller diameter than that of the step and working as a protection wall of a tab, with a back horizontal flat surface and defining further front compartment with rectangular shape in which such tab is located, the compartment formed by a horizontal flat surface with a pouring central orifice, two vertical side walls and one back vertical transverse wall defining the limit of the back horizontal flat surface;
a tab joined to the borders of the central pouring orifice by means of an horizontal tearing line or membrane, joined to the back vertical wall by means of a vertical tearing line and a transversal line in the top border working as a hinge, the tab works as closure of the lid in which the horizontal and vertical tearing lines are fractured when pressing, having a triangular shape with a frontal rounded vertex and provided with a continuous vertical wall occluding the pouring orifice.
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Accused Products
Abstract
A one-piece or monolithic body flat plastic lid for carton packages with thin walls and membrane or a web breaking under pressure, with a semicircular skirt provided with rectangular shaped entrance housing and locked to a closing and opening pivoting tab, joined to the border of a pouring orifice by means of a rupture horizontal perimeter membrane and a vertical breaking or tearing by means of pressure exerted in the vertical or transversal direction to the surface of the tab, which is locked by means of a hinge line to a transverse wall making the rectangular channel.
28 Citations
13 Claims
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1. A one-piece lid for carton packages with tab adapted to be placed in the pouring opening of a carton package, comprising:
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a semicircular flat base divided in two circular sections and two diametrically opposed parallel straight sections, such base is locked to the container by means of an induction process; a circumferential step with a smaller diameter than that of the base; a semicircular skirt, with a smaller diameter than that of the step and working as a protection wall of a tab, with a back horizontal flat surface and defining further front compartment with rectangular shape in which such tab is located, the compartment formed by a horizontal flat surface with a pouring central orifice, two vertical side walls and one back vertical transverse wall defining the limit of the back horizontal flat surface; a tab joined to the borders of the central pouring orifice by means of an horizontal tearing line or membrane, joined to the back vertical wall by means of a vertical tearing line and a transversal line in the top border working as a hinge, the tab works as closure of the lid in which the horizontal and vertical tearing lines are fractured when pressing, having a triangular shape with a frontal rounded vertex and provided with a continuous vertical wall occluding the pouring orifice. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification