Coil spring for cosmetic material and cosmetic container
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United States of America Patent
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Dec 6, 2016
Grant Date -
Jan 22, 2015
app pub date -
Jun 19, 2014
filing date -
Jul 18, 2013
priority date (Note) -
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Abstract
A coil spring for cosmetic material is a one spring where a first spring part and a second spring part whose winding wire diameters and spring constants differ from one another are continuously and integrally formed via a stepped part. Accordingly, the use of the first spring part and the second spring part allows, for example, achieving absorbing an impact in both directions of an axial direction and sequential movements of the components constituting the cosmetic container, thus allowing providing wide variety of functions with the one spring. For example, the use of the stepped part also allows locking the component constituting the cosmetic container.
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