Patent ID: 6833067
Filing Date: 2004-12-21
Classification: E04D

Abstract:
A device for draining a flat structure, comprising:an inlet body formed with an inlet and with a collar rim to be placed on a surface of the flat structure when the device is installed, and with a chamber having a substantially flat base; a loose flange member having a collar rim and being formed to be fitted into said inlet, wherein said collar rim of said inlet body and said collar rim of said loose flange member form a space to accommodate a connecting sheet and bracing the connecting sheet therebetween to produce a leaktight connection for a covering layer; a first drainpipe for connecting to a pressure drainage system and a second drainpipe for connecting to a free-flow drainage system each communicating with said chamber of said inlet body; said first drainpipe having an inlet lying directly in said base of said chamber and said second drainpipe having an inlet above said chamber.