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|1. (WO2017190874) ANNULAR FILTER ELEMENT, IN PARTICULAR FOR GAS FILTRATION|
PEREIRA MADEIRA, Pedro Miguel
|Title:||ANNULAR FILTER ELEMENT, IN PARTICULAR FOR GAS FILTRATION|
An annular filter element comprises a filter medium element, on the end face of which a continuous sealing element is placed that has at least one sealing portion with a larger cross-sectional area and another sealing portion with a reduced cross-sectional area; at least one sealing portion having a reduced cross-sectional area includes a groove-type recess which extends at least nearly along the entire length or part of the length of the sealing portion having a reduced cross-sectional area.