A foam sheet material prepared by a single die-cut operation, to provide a foam sheet material with three foam panels connected by a living hinge, and with closure means on the outer edges of two of the panels. The die-cut sheet material is adapted to move between a flat, stacked, storing or packagi
A foam sheet material prepared by a single die-cut operation, to provide a foam sheet material with three foam panels connected by a living hinge, and with closure means on the outer edges of two of the panels. The die-cut sheet material is adapted to move between a flat, stacked, storing or packaging position and a vertically upright, cone-like-structure position.
대표청구항▼
A sheet material adapted to form an upright, three-sided, cone structure, which sheet material comprises: a) a generally flat, shaped sheet material composed of a semirigid or flexible plastic-foam material; b) the sheet material having straight-line cuts therein, to form first, second and third, ad
A sheet material adapted to form an upright, three-sided, cone structure, which sheet material comprises: a) a generally flat, shaped sheet material composed of a semirigid or flexible plastic-foam material; b) the sheet material having straight-line cuts therein, to form first, second and third, adjacent, triangular or trapezoidal foam-sheet sections, the straight-line cuts only partially extending through the depth of the foam; c) hinge means formed by the uncut line sections of the sheet material, to permit the flat-foam sheet sections to move between a flat, folded, compact, storing or shipping position, with said foam sections stacked adjacent and overlapping each other, and a three-sided, upright, cone structure position formed by the three, inclined, flat-foam sections; and d) integrally formed fastening means on the outer edges of the first and third flat-sheet foam sections, to provide for the snap-fastening together of the outer edges of the first and third foam sections, to form the cone structure.
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이 특허를 인용한 특허 (13)
Karow, Mark P.; Neal, Timothy A., Collapsible construction barrier.
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