Collapsible-stable blown container
AssigneeThe Goodyear Tire & Rubber Company
InventorsClem B. Shriver, Donald E. Richeson, Robert H. Vogliano
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Abstract
A molded extensible-collapsible container having a series of flutes, in the generic sense, in its side to permit the container when subjected to an external force to move to a collapsed position or to the extended position when preferably the yield point of the plastic is no greater than about 5% and it has an ASTM modulus of elasticity greater than about (6.895.times.10.sup.8 pascals) and less than about (2.758.times.10.sup.9 pascals) and preferably about (1.034.times.10.sup.9 pascals to 2.069.times.10.sup.9 pascals). The plastic of the blow molded container can be a blow moldable polyester of less than 5% elongation at yield with polyethylene terephthalate being most preferred.
Claims10
A molded extensible-collapsible plastic container having a series of pleats or flutes in its side to permit the container to be stable in its extended position and in its collapsed position, said extended position having ends of each pair of flutes or pleats displayed essentially evenly above and below a horizontal line through shortest radius of said pair and said collapsed position having the end of said top flute or pleat of said pair moved downward below said horizontal line of said pair, said plastic having an ASTM modulus of elasticity sufficient to yield, but greater than 6.895.times.10.sup.8 and less than 2.069.times.10.sup.9 pascals.
Dependencies are inferred from the claim text.