A reusable filter frame adapted to receive a replaceable filter element includes a base and a cover connected with the base. The base includes a plurality of longitudinal rails and a plurality of transverse ribs for supporting and spacing the filter element. The filter frame also includes means for securing the filter element to the frame and maintaining the filte r element in its expanded condition.
申请公布号
CA2489371(A1)
申请公布日期
2003.12.24
申请号
CA20032489371
申请日期
2003.05.21
申请人
3M INNOVATIVE PROPERTIES COMPANY
发明人
KUBOKAWA, JAMES O.;TEDHAM, THOMAS A.;ROGOWSKI, BEN G.