| 摘要 |
A filter cartridge which comprises a filter pack ( 3 ) formed by a flat filtering medium, a tubular sheath ( 2 ) with a perforated wall, surrounding the filtering pack, and two respective end caps ( 5 ) having a first disc ( 16 ) and a second disc ( 17 ) placed one on top of the other, each made from thermoplastic, with a portion of the filtering pack ( 3 ) situated along one of its edges and a portion of the sheath ( 2 ) situated along one of its edges ( 33 ) which are embedded in the second disc ( 17 ), with the first disc ( 16 ) having a peripheral rim ( 19 ) which surrounds the relevant portion of the sheath ( 2 ) and with the sheath having a shoulder ( 34 ) opposite the edge of the rim ( 19 ) of the first disc ( 16 ).
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