Material and device for draining, and manufacturing method

Abstract

Abstract A drainage device comprises an inner core 4 formed with a number of projections 5 and corresponding recesses 6 having flat apexes or tops and disposed in staggered rows, to define non-linear drainage channels between the core and two non-woven fitter sheets 8, 9 which are mounted adjacent the two surfaces of core 4. A drain pipe 2 is inserted between two extending edge portions 12, 13 of the filter sheets 8 and 9. The drainage device, when disposed underground, can thus collect underground water, which is suitably filtered by sheets 8, 9 and flows through the channels adjacent core 4 so as to be discharged through pipe 2. <IMAGE>

Inventors

• 👤 Joseph Glasser
• 👤 François Lede

Bibliographic Details