Stock material or miscellaneous articles – Collapsible article
Patent
1990-02-20
1991-01-01
Epstein, Henry F.
Stock material or miscellaneous articles
Collapsible article
428181, 4285422, 4285428, 446488, A63H 3316
Patent
active
049817329
ABSTRACT:
Self-supporting structures of diverse shapes are disclosed that may be collapsed down to a compact bundle. In them, units are employed that are comprised of a central tapered strip bordered by two elongated strips. The tapered strip is pleated along a series of lines that cross it widthwise and each elongated strip is pleated along a series of lines that cross it widthwise. The central tapered strip is joined to each of the two elongated strips by a series of pleat lines that are connected end-to-end. When the unit is folded, each of the two elongated strips fold into a stack, and the central tapered strip folds in a zig-zag fashion, such that the planes of the tapered strip lie essentially orthogonal to the planes of the stacked elongated strips. The two stacked elongated strips fold towards each other, such that the stacks lie in line with one another.
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