|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||055/473; 055/385.1; 055/385.2; 055/438; 055/439; 055/471; 055/DIG.0046; 454/187|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 7 인용 특허 : 29|
A portable, light-weight exhaust fan that can be easily and quickly carried to and set up in a localized area to safely, efficiently and substantially remove airborne materials thereby overcoming the above and other drawbacks of conventional exhaust fans. Exhaust fans in accordance with aspects of the present invention may be used to ventilate a localized area such as an enclosed room and may be placed in any aperture such as a window or doorway to remove substantially all airborne material from the air passing therethrough, and to exhaust filtered air d...
1. A fan for removing airborne materials from a localized area comprising:a housing having an inlet opening, a discharge opening and an air passageway coupling said inlet and discharge openings; a blower unit mounted within said housing to draw air into said inlet opening and to cause said drawn air to travel through said air passageway and exit through said discharge opening; and an inlet filter removably secured over said inlet opening to remove from the air drawn into the housing airborne materials that may interfere with the fan's ability to operate ...