发明名称 |
Box fans |
摘要 |
A box fan comprising a box-like structure containing an electric motor and a fan blade assembly operable by the motor, which structure consists of a front section and a rear section forming a box having front and rear openings which are interconnected to form a duct through said box, the fan blade assembly being positioned for causing air flow through the duct when the motor is operating, wherein the two sections are held securely together by a locking means including external resiliently operable disguised clamps which are disposed transversely of the interface between said sections.
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申请公布号 |
US4120615(A) |
申请公布日期 |
1978.10.17 |
申请号 |
US19770765628 |
申请日期 |
1977.02.04 |
申请人 |
ALLWARE AGENCIES LIMITED |
发明人 |
KEEM, PHILLIP WILLIAM;KAIMINS, LAIMONS;GRAHAM, JAMES |
分类号 |
F04D29/42;F04D25/10;F04D29/52;F04D29/64;(IPC1-7):F04B39/02 |
主分类号 |
F04D29/42 |
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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