A particle control screen includes a support layer. A first filter layer is disposed around the support layer. A second filter layer is disposed around the first filter layer. A third filter layer is disposed around the second filter layer. Each of the filter layers has a pore size. The pore size of the third filter layer is greater than the pore size of the second filter layer. The pore size of the second filter layer is greater than the pore size of the first filter layer.
申请公布号
WO2007130195(A2)
申请公布日期
2007.11.15
申请号
WO2007US04473
申请日期
2007.02.22
申请人
PUROLATOR FACET, INC.;HOPKINS, SAM, A.;WELLS, DONALD, G.