Folded filter, with zigzag folds, has closure at least at one end side with three legs structured so that third leg projects over free end of second leg to lie against holder wall in sealed fit

摘要

A filter element (10), to fit into a filter housing, is a zigzag folded pack (12) with a frame strip (14). A closure (18) is at least at one end side (16) parallel to the folds, as a stiffener and as a seal against the wall of the holder. The closure has three legs (20, 22, 24), where the width of the second and third legs is structured so that the third leg projects over the free end (30) of the second leg.