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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0754907 (1985-07-15) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 22 인용 특허 : 1 |
A turbo fan vent for use on the roof of a building and having a close-louvered low profile turbine affixed to a rotary shaft which is rotationally supported by bracing and bearing means associated with a lower concentric collar. The collar is spaced inwardly of said turbine and is vertically overlap
A turbo fan vent capable of being rotated by wind currents comprising: a turbine having a solid upper wall and side wall, said side wall having a plurality of closed louvers therearound, said side wall having a height substantially less than its diameter; a rotary shaft removably fastened at a top e
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