Bi-material closure device for a bag
AssigneeS2F Flexico
InventorHenri Bois
Life of this patent
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Abstract
A closure assembly includes two complementary zippers, respectively with support backing-strips (220) and complementary closure elements (242), wherein at least one of these closure elements includes a widened soleplate (246) that is at least partially surrounded by the associated support backing-strip (220).
Claims17
A closure assembly, having two complementary zippers which respectively include co-extruded support backing-strips (220) and complementary closure elements (242) from thermoplastic materials, wherein at least one of the closure elements in each zipper is integral with a widened soleplate (246), and wherein the associated support backing-strip (220) is co-extruded onto the widened soleplate so that said widened soleplate is located in a cavity formed in the thickness of its associated backing strip and the widened soleplate is embedded in the mass of the associated support backing-strip (220).
Dependencies are inferred from the claim text.