SANITARY DEVICE SIPHON AND SIPHON NECK Russian patent published in 2006 - IPC E03C1/29 

FIELD: sanitary equipment, particularly siphon and neck thereof adapted for common and waste water discharge into sewage system.

SUBSTANCE: siphon comprises body connected with cup from one side and with transition pipe from another side thereof. Neck formed of solid polymeric material is installed on the transition pipe and provided with flange. Connected to the flange is sealing gasket made of elastic polymeric material. The gasket is produced simultaneously with the neck by binary molding method. Spaced through orifices for sealing gasket material receiving are created in neck flange and extend along a circle. Each orifice is cylindrical and provided with ledge and expanded part created at flange side opposite to that carrying sealing gasket. Sealing gasket surface adapted to contact with sanitary device wall is provided with concentric sealing ribs. Siphon neck comprises body made of solid polymeric material and having flange and sealing gasket made of elastic polymeric material. The body and the sealing gasket are formed by binary molding method. Spaced through orifices for sealing gasket material receiving are created in neck flange and extend along a circle. Each orifice is cylindrical and provided with ledge and expanded part created at flange side opposite to that carrying sealing gasket. Sealing gasket surface adapted to contact with sanitary device wall is provided with concentric sealing ribs.

EFFECT: improved performance properties due to enhanced air-tightness and reduced number of details to be connected one to another.

8 cl, 2 dwg