Envelopes – wrappers – and paperboard boxes – Paperboard box – Including a polygonal bottom wall and a curved sidewall
Patent
1989-08-29
1990-06-19
Price, William
Envelopes, wrappers, and paperboard boxes
Paperboard box
Including a polygonal bottom wall and a curved sidewall
2291602, 2291231, 220258, 220270, 220276, B65D 308, B65D 326
Patent
active
049345850
ABSTRACT:
The invention describes a packaging container for jams, comprising a tube-shaped part (6) which consists of synthetic plastics coated paper and on one edge (9) of which there is an integrally molded closure means (5) which consists only of synthetic plastics material, with no carrier material and which has an annular surface (13) and an opening device (16 to 20), with a closure wall (16) at the end of an annular collar (4), the wall (16) being adapted to be torn out along a line of weakness (17) by a gripper device (20).
The invention of such a container with a screwed closure means which has the necessary sealing-tightness and which can be produced in a similar way to milk containers is characterized in that the annular collar (4) is provided with an external screwthread (3) and in that a separate screwed lid with an internal screwthread can be screwed onto the annular collar (4), covering the closure wall (16) and gripper device (20).
REFERENCES:
patent: 2309341 (1943-01-01), Condon
patent: 2398505 (1946-04-01), Pepin
patent: 2415906 (1947-02-01), Paige
patent: 4564139 (1986-01-01), Reil
Price William
Tetra Pak Finance & Trading S.A.
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