Patent ID: 6616375
Filing Date: 2003-09-09
Classification: E03F,Y10T

Abstract:
An arrangement in a drain system, said drain system havinga first system section located in a building (6) and arranged to receive drain media from one or a plurality of units, and a second system section having a main drain conduit (19) in common to a plurality of buildings provided with the first system section and arranged to conduct the drain media to one or a plurality of devices (27-31) for taking care thereof, wherein the main drain conduit (19) is structured and arranged as a closed ring conduit, pumping members (17, 18, 42, 43) are structured and arranged to pump the drain media emanating from said first system section to and into the ring conduit (19) for transport therein through pumping action, said devices (27-31) are each connected to the ring conduit (19) through a respective branch (26), and valve members (24, 25, 44, 45) are structured and arranged in each connection to the ring conduit (19) and to either open and allow pumping of the drain media into the ring conduit (19) in the case of a feed connection and drainage from the ring conduit (19) in the case of a device connection, or close to prohibit the drain media from flowing into or out of the ring conduit (19) at said respective connection.