发明名称 Ceiling fan with integral blade and neck
摘要 A combination of a blade and a support of a ceiling fan includes a blade portion and a support portion, the blade portion being an elongate plate which has one end to be a free end, the support portion including a base and a neck which extends from the base and integrally connects to the other end of the blade portion, the blade portion having a curved surface defined in an under surface thereof along a longitudinal axis of the blade portion, the blade portion having two upper longitudinal edges and two lower longitudinal edges, each of the two upper longitudinal edges and the lower longitudinal edges being shaped to have an inclined surface so as to reduce resistance of air.
申请公布号 US5669760(A) 申请公布日期 1997.09.23
申请号 US19960679340 申请日期 1996.07.11
申请人 CHEN, JUNG-SAN 发明人 CHEN, JUNG-SAN
分类号 F04D29/38;(IPC1-7):F04D29/34 主分类号 F04D29/38
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