Abrégé

The invention relates to a cellular filter with an across the row of cells riding flushing bridge that is provided with the means for the water and air flushing and with along the cells advancing injection nozzle for flushing water and air. There are adjusting means providing a movement of the nozzle perpendicular to the advancing direction along the cells to press the nozzle onto the injection port during cell treatment and to keep it spaced from the cells during advancement. The with the injection nozzle provided injection tube is pivoting mounted and the adjusting means provide a forced pivoting of the injection tube.

Classes IPC  ?

• B01D 24/00 - Filtres à substance filtrante non agglomérée, c.-à-d. à substance filtrante sans aucun liant entre les particules ou les fibres individuelles qui la composent

Abrégé

This invention relates to a method to make a pit to withdraw or store or infiltrate water; a pit to withdraw or store or infiltrate water; a method to withdraw water from a water bearing package or to store or infiltrate water, particularly wherein use is made of a filter tube contrary to a drainage tube. The filter tube can be provided with a sheath/ jacket of filter sand of gravel.

Classes IPC  ?

• E03B 3/26 - Filtres de puits formés de matériaux meubles, p. ex. de graviers avec un matériau tassé pour le filtrage
• E21B 43/04 - Réalisation de filtres à graviers
• E21B 43/08 - Tubes filtres ou crépines