|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||55/337 ; 15/353 ; 55/4591 ; 55/DIG ; 3|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 65 인용 특허 : 0|
A cyclonic vacuum cleaner for compacting dirt within a receptacle is disclosed. The vacuum cleaner includes a receptacle having a top side and bottom wall with an air inlet opening in the side wall. A frustoconical air flow structure is disposed within the receptacle to separate air entering the inlet from the top wall. A filter spanning from the side wall to the air flow producing structure is disposed within the receptacle between the air inlet and an outlet disposed within the receptacle between the air inlet and an outlet disposed in the side wall ne...
A vacuum cleaning apparatus comprising: a receptacle having a side wall, a top wall and a bottom wall to define a volume therebetween; a first opening in said side wall; means for producing a downwardly spiralling air flow from air entering said receptacle through said first opening, said downwardly spiralling air flow producing means having an imperforate exterior surface, an upper section, and a lower section, said downwardly spiralling air flow producing means being stationary within said receptacle and being positioned so that said upper section is o...