Apparatus comprising planar elements which may be assembled toge

Details Apparatus comprising planar elements which may be assembled toge Apparatus comprising planar elements which may be assembled toge

1986-05-30

1987-08-11

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Wrapper

Bottle

217 32, 229 42, B65D 548

Patent

active

046856099

ABSTRACT:
The invention concerns an apparatus comprising first and second planar elements, e.g. of cardboard, which may be assembled together to form a structure, e.g. a cross brace of a bottle crate. Each of these elements has a slit which extends to an edge of the respective element and into which the other element may be introduced. The slits of the two elements have linear portions which are aligned in a predetermined direction when the elements are assembled. The slit of the first element is formed to provide a flap which extends transversely with respect to the predetermined direction and which is pivotable about a folding line which extends obliquely with respect to the predetermined direction. The second element has an aperture in which the flap is engaged with the elements are assembled. Assembly of the elements in a mutually orthogonal position permits the flap to be freely pivoted about the folding line without engaging an edge of the aperture, while subsequent movement of the elements from the orthogonal position to a further position in which they lie against one another prevents the flap from pivoting freely about the folding line without engaging an edge of the aperture.

REFERENCES:
patent: 203356 (1878-05-01), McCarren
patent: 529173 (1894-11-01), Herr
patent: 533331 (1895-01-01), Williams
patent: 652126 (1900-06-01), Lion berger
patent: 2466275 (1949-04-01), Ringel
patent: 3767106 (1973-10-01), Morgan
patent: 4544092 (1985-10-01), Palmer
patent: 4548350 (1985-10-01), Engle et al.
patent: 4591090 (1986-05-01), Collins et al.

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