Title: Method for the production of composite containers

Abstract: The invention is concerned with a method for making an article such as a container having a circular end wall and a side wall folded from the arcuate edge of the end wall, the article being first formed as a flat blank having two panels conforming to the base and side walls, the peripheries of the panels intersecting each other with a slit being formed in the common intersecting portions to form a pair of hinges at the ends of the slit enabling one panel to be folded upwardly with respect to the other between two mold tools without rupturing the hinges, plastic material being injected into the mold to join the folded panels into a unitary container or similar article.

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Inventors: Sutch, Brian Leo Chudleigh (Thames Ditton, EN)

Application Number: 441892
Filing Date: 1974-02-12
Publication_date: 1976-01-06
Assignee: Airfix Industries Limited (London, EN)
Primary Class(es): 264/154 229/4.5, 229/400, 264/251, 264/259, 425/112, 425/129.1
Other Classes:
US Patent Ref:

3154617	Oct, 1964	Schenk et al.	264/328.
3476852	Nov, 1969	Shattuck	425/129.
3511902	May, 1970	Santangelo	264/251.

Other Refs: 45-37,870

Jan, 1970	JA

Primary Examiner: Silbaugh, Jan H.
Assistant Examiner:
Attorney: Scrivener Parker Scrivener and Clarke