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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0822144 (2001-03-30) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 1 인용 특허 : 9 |
A shutter assembly for an intake opening in an exhaust fan for improving heating and cooling efficiency of a structure by preventing air in the structure from flowing through the exhaust fan and out of the structure. The shutter assembly for an intake opening in an exhaust fan includes a door for se
1. A shutter assembly for regulating air flow through an air intake opening in an exhaust fan, the exhaust fan being mounted on a surface, said assembly comprising: a door for selectively positioning over the air intake opening in the exhaust fan, said door being mountable on the surface around t
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