05-09-2013 дата публикации
Номер: US20130230671A1
An internal tensioning structure for use in an inflatable product fulfills the basic function of maintaining two adjacent inflatable surfaces in a desired geometric arrangement when the inflatable product is pressurized. The tensioning structure is formed by connecting a pair of plastic strips sheets via spaced-apart strands, such as strings or wires. When pulled taut, the strands provide a high tensile strength between the two opposed plastic strips. At the same time, the plastic strips facilitate a strong, long-lasting weld between the tensioning structure and the inflatable product. 1. An inflatable product comprising:a first sheet;a second sheet disposed opposite the first sheet, the first and second sheets spaced apart to define a gap; and a plurality of strands uniformly spaced apart and arranged substantially parallel to one another;', 'a first weld sheet having the plurality of strands uniformly affixed to an upper surface of the first weld sheet and affixed to the first sheet; and', 'a second weld sheet disposed opposite the first weld sheet, the plurality of strands captured between the first and second weld sheets when the first and second weld sheets are affixed to one another., 'a tensioning structure spanning the gap between the first sheet and the second sheet, the tensioning structure comprising2. The inflatable product of claim 1 , wherein each strand includes a first terminal end and a second terminal end claim 1 , the first and second weld sheets are strips claim 1 , the strips include adjacent first longitudinal edges and adjacent second longitudinal edges spaced apart from the adjacent first longitudinal edges claim 1 , and the first terminal ends of the strands are positioned adjacent to the adjacent first longitudinal edge of the strips.3. The inflatable product of claim 2 , wherein the first terminal ends of the strands are sandwiched between the strips.4. The inflatable product of claim 2 , wherein the tensioning structure further includesa ...
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