|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||210/4931 ; 210/4935 ; 210/503 ; 55/484|
|우선권정보||JP-0097036 (1981-06-23); JP-0097037 (1981-06-23)|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 42 인용 특허 : 2|
A filter means for filtering fluid comprises a first filter section and a second filter section. The filter means is formed by using a folded sheet material having a trapezoid or a sector form. The second filter section of the filter means has a filtering performance different from that of the first filter section of the filter means.
A fluid cleaner assembly comprising: a casing; a generally circular filter means for filtering fluid disposed within said casing; an inlet port provided in said casing so as to be communicated with one axial end of said filter means; and an output port provided on said casing so as to be communicated with the other axial end of said filter means and so as to be located adjacent to a substantial centre portion of said filter means, said filter means having two-dimensional wave forms spreading radially from an axis of said filter means and has a first and ...