B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
18/513, 190/26.1
B65D 1/02 (2006.01) B29C 49/00 (2006.01) B29C 49/22 (2006.01) B29C 49/24 (2006.01) B65D 23/08 (2006.01)
Patent
CA 1146312
ABSTRACT OF THE DISCLOSURE The invention relates to the production of a packaging container from a seamless tubular prefabricate, which is provided with an endwall covering one of the tube ends and a ring-shaped member covering the edge of the opposite tube end. The preform of plastic material is heated and the pre- form is blown to a predetermined shape in a mould without changing position or shape of the endwall and the ring-shaped member attached to the ends of the preform, whereby said ring-shaped member is intended to form the opening of the container formed. The invention also provides a packaging container formed in accordance with the method comprising an expanded tubular member having a central cylindrical portion and dished first and second end portions on respective ends of said cylindrical portion, wherein said tubular member is comprised of a laminate which includes a gas barrier layer and at least one additional layer; an end plate, said end plate having an edge groove, which edge groove receives said first end portion of said tubular member such that said end plate closes said tubular member at said first end thereof; and an edge ferrule which receives said second end portion of said tubular member.
333550
Marks & Clerk
Tetra Pak Developpement Sa
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