Zipper Slide for Double-Layer Nylon Zipper
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United States of America Patent
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N/A
Issued Date -
Aug 13, 2015
app pub date -
Feb 12, 2014
filing date -
Feb 12, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A zipper slide so configured that the retracted design of the rear side of the bottom slide body block relative to the top slide body block provides sufficient space for allowing the inner layer of the double-layer nylon zipper to be smoothly curved when the zipper slide is cornering, reducing zipper friction resistance and prolonging the zipper lifespan; the upper guard flanges are relatively longer than the lower guard flanges so that the upper guard flanges are kept relatively closer to the center block than the lower guard flanges to shift the fulcrum forward, enabling each of integrated opposing left and right series of interlocking teeth of the double-layer nylon zipper to face toward the fulcrum and the center block when each of integrated opposing left and right series of interlocking teeth of the double-layer nylon zipper is opened to the extent.
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