Cap structure having an inner surface concave feature and zipper head assembly structure using the same
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United States of America Patent
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Jun 23, 2015
Grant Date -
Nov 20, 2014
app pub date -
Jul 5, 2013
filing date -
May 20, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A cap structure includes a cap body and an elastic piece. The cap body has at least two first inner concave grooves corresponding to each other, at least two first retaining blocks corresponding to each other and respectively extended outwardly from the at least two first inner concave grooves, and at least two first outer concave grooves corresponding to each other and respectively adjacent to the at least two first retaining blocks. The at least two first inner concave grooves are disposed on the inner surface of the cap body, and the at least two first outer concave grooves are disposed on the outer surface of the cap body. The elastic piece is disposed on the inner surface of the cap body, and the at least two first retaining blocks contact the elastic piece for retaining the elastic piece.
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