Break-open single-dose sealed package
AssigneeDiapack Limited
InventorChristian Burattini
Life of this patent
Estimating the term…
Abstract
A break-open single-dose sealed package having: a first sheet of semi-rigid plastic material; a second sheet of flexible plastic material set on top of and welded to the first sheet of semi-rigid plastic material to define a sealed pocket that contains a dose of a product; and an incision made in the first sheet of semi-rigid plastic material for guiding controlled breaking of the first sheet along the incision so as to bring about formation, through the first sheet, of an opening for exit of the product; the incision has along its own length a variable depth in order to determine a progressive breaking of the first sheet along the incision.
Claims15
A break-open single-dose sealed package (1), comprising:
- a first sheet (2) of semi-rigid plastic material, which is constituted by a laminate made up of a load-bearing layer (7), a heat-sealable layer (8), and an isolating or barrier layer (9) set between the load-bearing layer (7) and the heat-sealable layer (8);
- a second sheet (3) of flexible plastic material set on top of and welded to the first sheet (2) of semi-rigid plastic material for defining a sealed pocket (4) that contains a dose of a product (5);
- and
- an incision (6) provided in the first sheet (2) of semi-rigid plastic material for guiding controlled breaking of the first sheet (2) along the incision (6) so as to bring about formation through the first sheet (2) of an opening for exit of the product (5);
- wherein the incision (6) is provided on both sides of the first sheet (2) of semi-rigid plastic material and constitutes a first groove (6a) made in an outer wall (10) of the first sheet (2) of semi-rigid plastic material and a second groove (6b) made in a second inner wall (11) of the first sheet (2) of semi-rigid plastic material;
- and
- wherein the second groove (6b) is made so as to bring about local deformation of all three layers (7, 8, 9) of the first sheet (2) of semi-rigid plastic material to maintain the barrier layer intact.
A break-open single-dose sealed package (1), comprising:
- a first sheet (2) of semi-rigid plastic material;
- a second sheet (3) of flexible plastic material set on top of and welded to the first sheet (2) of semi-rigid plastic material for defining a sealed pocket (4) that contains a dose of a product (5);
- and
- an incision (6) provided in the first sheet (2) of semi-rigid plastic material for guiding controlled breaking of the first sheet (2) along the incision (6) so as to bring about formation through the first sheet (2) of an opening for exit of the product (5);
- wherein the incision (6) has along its own length a variable depth in order to determine a progressive breaking of the first sheet (2) along the incision (6) and involves only a central portion of the first sheet (2) leaving intact two side portions of the first sheet (2), each side portion set symmetrically on at opposite ends of the incision (6).
Dependencies are inferred from the claim text.