发明名称 |
Two button safety umbrella |
摘要 |
A two button safety umbrella is provided having an inner tube, a middle tube, and an outer tube, which are respectively coupled to related ribs of the umbrella. A coil spring is disposed within the inner tube and the middle tube is disposed over the inner tube. Two button assemblies are coupled to the middle and the outer tubes, respectively, to control the opening and closing of the umbrella, which is thereby operated easily and safely.
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申请公布号 |
US5297571(A) |
申请公布日期 |
1994.03.29 |
申请号 |
US19920948306 |
申请日期 |
1992.09.22 |
申请人 |
CHU, CHIN-TANG;HAONG, WEN-CHING |
发明人 |
CHU, CHIN-TANG;HAONG, WEN-CHING |
分类号 |
A45B25/14;(IPC1-7):A45B25/14;A45B25/16 |
主分类号 |
A45B25/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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