Closure device providing visual confirmation of occlusion
AssigneeThe Glad Products Company
InventorsMichael G. Borchardt, Ronald J. Cisek
Life of this patent
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Abstract
A closure device providing a visual confirmation of occlusion. The closure device includes a first and a second interlocking fastening strips which are arranged to be interlocked over a predetermined length, at least one of the fastening strips having a surface alteration providing visual confirmation of occlusion of the closure device. The surface alteration may be a slit which opens or closes upon occlusion of said closure device. In one embodiment, the surface alteration may extend into a coextruded portion. The color of the coextruded portion is exposed when the surface alteration is open and hidden when the surface alteration is substantially closed.
Claims20
A container comprising first and second sidewalls, said first and second sidewalls including mating first and second fastening strips respectively, said first and second fastening strips comprising a closure device arranged to be interlocked over a predetermined length, said first fastening strip including a first material and a second material wherein a surface alteration extends through said first sidewall and said first material and into said second material, said surface alteration opens or closes upon occlusion of said closure device to provide visual confirmation of occlusion of said closure device.
A container comprising first and second sidewalls, said first and second sidewalls including mating first and second fastening strips respectively, said first and second fastening strips comprising a closure device arranged to be interlocked over a predetermined length, said first fastening strip including a first material and a second material wherein a surface alteration extends through said first material and into said second material but does not extend into the first sidewall, said surface alteration opens or closes upon occlusion of said closure device to provide visual confirmation of occlusion of said closure device.
A container comprising first and second sidewalls, said first and second sidewalls including mating first and second fastening strips respectively, said first and second fastening strips comprising a closure device arranged to be interlocked over a predetermined length, said first fastening strip including a first material and a second material wherein a surface alteration extends through said first material and into said second material but does not extend into the first sidewall, said surface alteration opens or closes upon occlusion to provide visual confirmation of occlusion of said closure device.
Dependencies are inferred from the claim text.