SPILLWAY DEVICE FOR SEWAGE SYSTEM Russian patent published in 2006 - IPC E03C1/12 F16L17/06 

FIELD: sanitary equipment, particularly flexible spillways to be attached to sewage system including waste water discharge means.

SUBSTANCE: spillway device comprises pipe with corrugated central part and wide end provided with rim to connect the pipe with sanitary equipment. The pipe also has narrow end with outlet connection tube arranged inside the pipe. The connection tube comprises flange extending outside the pipe and brought into contact with it. The flange is adapted to connect the pipe with sewage system pipeline. Both pipe ends are provided with elastic seals. Elastic seal connected with wide pipe end is made as sleeve having cylindrical part arranged between the rim and outer pipe wall and conical part located in pipe interior. Elastic seal connected to narrow pipe end is made as bush having row of annular ribs formed on outer surface thereof.

EFFECT: improved performance characteristics due to increased air-tightness thereof without the use of additional components, simplified mounting and increased angle of possible corrugated pipe inclination without inner pipe profile deformation.

8 cl, 10 dwg