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특허 상세정보

Dual fan hepa filtration system

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F24F-007/007   
미국특허분류(USC) 454/230 ; 55/473 ; 55/502
출원번호 US-0047597 (1993-04-14)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 62  인용 특허 : 0
초록

A device for use with at least one workspace, to produce an umbrella of clean room air for a distance of one meter from the device and 98% fewer particles than the air in the area three meters from the device. The device has a chamber defined by an outer wall, end walls and a filter as the inner wall. The filter functions as tile sole outlet of air. A motor with an axially extending drive shaft is mounted inside said filter. The shaft has an intake fan mounted on one end to define a sealed path which is the sole air inlet to the chamber. An exhaust fan i...

대표
청구항

A device for use with at least one workspace, comprising: a chamber including an outer wall and end walls forming the chamber; filter means defining an inner wall of said chamber and being the sole outlet of air entering said chamber; a fan motor mounted inside said filter means and including a drive shaft extending axially out from motor in two directions; an intake fan mounted on one end of the shaft, including first path defining means for defining a sealed path which is the sole air inlet to said chamber; an exhaust fan mounted on the other end of sh...

이 특허를 인용한 특허 피인용횟수: 62

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