|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||210/315; 055/520; 096/154; 210/489; 210/494.1; 210/497.01; 210/502.1|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 34 인용 특허 : 27|
The present invention provides a filtration device. The invention employs filter media wrapped into spirals about an apertured core. Fluid may flow radially inward or radially outward during filtration. Embodiments using multiple filter media and embodiments achieving a low pressure drop are also disclosed.
What is claimed is: 1. A filtration device, comprising: an unfiltered fluid inlet surface, through which unfiltered fluid may enter the filtration device; a first filter media in fluid communication with the unfiltered fluid inlet surface, said first filter media being spirally wound and being positioned with respect to said unfiltered fluid inlet surface so that unfiltered fluid entering the filtration device through the unfiltered fluid inlet surface is directed to flow radially inward and through the first filter media, said first filter media being ...