초록 ▼

A renewable, multi-layered filter apparatus (20) is disclosed. The filter apparatus (20) includes a housing (22) having a fluid inlet (24) for ingress of a contaminated fluid flow and a fluid outlet (26) for egress of a filtered fluid flow. A filter element (28) is supported intermediate of the flui

A renewable, multi-layered filter apparatus (20) is disclosed. The filter apparatus (20) includes a housing (22) having a fluid inlet (24) for ingress of a contaminated fluid flow and a fluid outlet (26) for egress of a filtered fluid flow. A filter element (28) is supported intermediate of the fluid inlet (24) and the fluid outlet (26). The filter element (28) includes a nested, pleated filter media (30) having multiple filter media layers (30a,b,c) which are independently removable from the filter element (28) so as to enable renewal of the filter function by simply removing one of the filter layers (30a,b,c).

대표청구항 ▼

A filter apparatus constructed and arranged so as to be renewable at least once, said filter comprising: a housing including inlet means for ingress of a contaminated fluid flow and outlet means, separate from said inlet means, for egress of a filtered fluid flow; a filter element providing a single

A filter apparatus constructed and arranged so as to be renewable at least once, said filter comprising: a housing including inlet means for ingress of a contaminated fluid flow and outlet means, separate from said inlet means, for egress of a filtered fluid flow; a filter element providing a single passageway for fluid flow from said inlet means to said outlet means, said filter element being positioned intermediate said inlet means and said outlet means and constructed from a pleated filter media and having a depth, said filter element including a first layer of said filter media and a second layer of said filter media, said first layer being positioned upstream from said second layer with respect to the direction of a fluid flow therethrough which is in a downstream direction, said first and second layers constructed so as to nest together across said filter element depth; and means, formed integral with said filter media, for removing said first layer from said filter element leaving said second layer intact within said filter element.