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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||98/43R ; 98/116 ; 248/58|
|발명자 / 주소||
|출원인 / 주소||
|인용정보||피인용 횟수 : 67 인용 특허 : 3|
A fan housing assembly includes a fan and an air permeable, decorative grill mounted on a U-shaped bracket in a housing and two rotatably mounted, semi-circular damper plates in said housing, said plates being movable by air blown by said fan between a normal horizontal position blocking the air discharge opening of said housing and a vertical position not blocking said opening; and a mounting device for said housing, said mounting device being rigidly affixed to a support member and being adapted to extend through an opening in the wall of said housing ...
A fan housing assembly for attachment to a supporting structure of an enclosure to be exhausted comprising: (a) a fan housing comprising a generally cylindrical hollow casing which includes openings at its two ends and means securing said casing to said supporting structure, said casing being vertically positioned on said supporting structure, with the opening at its lower end serving as an air intake opening and the opening at its upper end serving as an air discharge opening, (b) a blower means for drawing air from said enclosure and blowing the same t...