Pipe for underdraining

Details Pipe for underdraining Pipe for underdraining

E - Fixed Constructions

02

B

61/32

E02B 11/00 (2006.01) A01G 25/06 (2006.01)

Patent

CA 1073227

TITLE OF THE INVENTION Pipe for Underdraining ABSTRACT OF THE DISCLOSURE A pipe for underdrainage comprises (1) a liquid collecting pipe; (2) a plurality of discontinuous protrusions on the outer surface of the liquid -collecting pipe; (3) a filter layer capable of passing substantially liquid only, not solid, the filter layer being disposed around the liquid- collecting pipe and contacting the top portions of the pro- trusions; and (4) a liquid-conducting way composed of a space communicating both in the longitudinal direction and in the peripheral direction as the liquid collecting pipe and defined by the protrusions, the outer surface of the liquid- collecting pipe and the inner surface of the filter layer.

298804

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