초록 ▼

An improved filter element assembly for use in an air cleaner on an internal combustion engine comprises a perforated liner. A replaceable filter element comprising a pleated filter medium is releasably coupled to the liner. A safety sleeve assembly is interposed between the filter medium and the li

An improved filter element assembly for use in an air cleaner on an internal combustion engine comprises a perforated liner. A replaceable filter element comprising a pleated filter medium is releasably coupled to the liner. A safety sleeve assembly is interposed between the filter medium and the liner. An outer liner surrounds the filter medium and exerts a radially inward force thereon to bias the pleats into engagement with the liner. The filter element assembly can be reconditioned when the filter medium becomes used with a replacement kit which includes a new filter element, safety sleeve assembly, and outer liner. The used filter element assembly is disassembled and the worn components thereof replaced with the new components of the kit. The filter medium is expandable from a collapsed cylindrical form in which the filter element is shipped to an expanded conical form for use during filtering operations.

대표청구항 ▼

An improved filter element assembly for use in an air cleaning device having a filter body which defines a filter chamber, said filter element assembly being releasably contained in said filter body, wherein said filter element assembly comprises: (a) an elongated perforated liner assembly, said lin

An improved filter element assembly for use in an air cleaning device having a filter body which defines a filter chamber, said filter element assembly being releasably contained in said filter body, wherein said filter element assembly comprises: (a) an elongated perforated liner assembly, said liner assembly being made from a material which is sufficiently durable to enable said liner assembly to be reused during successive air cleaning operations over the life of the air cleaning device; (b) a disposable and elongated filter element which includes a filter medium having a plurality of pleats, said filter medium being made from a material which is substantially porous to air and substantially nonporous to predetermined particulate matter suspended in the air, whereby said filter medium removes the particulate matter from the air; (c) locking means for releasably coupling said filter element to said liner assembly with said filter medium surrounding said liner assembly in a face-to-face relationship, whereby said filter element may be detached from said liner assembly when said filter medium becomes plugged with the particulate matter to allow said liner assembly to be reused; and (d) an elongated porous outer liner surrounding and engaging said filter medium, wherein said outer liner has means for applying a radially inward force to said filter medium to press said pleats into engagement with said liner assembly.