Filtering device comprising a porous web and at least two maintaning extension hoops

摘要

The device (16) has a filtering sheet (17) applied against a perforated wall of a basket. Two plastic flexible strappings (18, 19) are integrated to the sheet (17) and maintain the sheet in position in the basket. Fixation points between the sheet and strappings maintain the strappings in position with respect to the sheet to avoid all relative movement of the sheet and the strappings irrespective of the fixation in the basket.