发明名称 Blade arm
摘要 The apparatus of the present invention comprises a user adjustable variable axial length and variable pitch ceiling fan blade arm. The blade arm includes a pair of extension elements. Each element is threadably engaged with each other. At the other end of the extension elements are custom flanges for the purpose of attaching a fan blade and connecting the blade arm to a ceiling fan motor. The user can adjust the axial length and radial pitch of the blade arm by screwing in or out a threaded connection between the extension elements, and once the desired length and pitch is selected, the connection is secured by a connector, such as a hand adjustable threaded lock.
申请公布号 US2005220623(A1) 申请公布日期 2005.10.06
申请号 US20050094063 申请日期 2005.03.30
申请人 DELEON JOHN C 发明人 DELEON JOHN C.
分类号 B63H1/20;F04D25/08;F04D29/36;(IPC1-7):B63H1/20 主分类号 B63H1/20
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