U-BEND Russian patent published in 2014 - IPC E03D11/18 

FIELD: machine building.

SUBSTANCE: proposed invention relates to pipe joints. An U-bend pipe 10 consists of a case 1 comprising an inlet branch pipe 1b passing through the wall 1a of the case 1 and an outlet branch pipe 1e passing through the wall 1d of the case 1. The inlet branch pipe 1b is ended inside the U-bend case with an inlet hole 1c, and the outlet branch pipe 1e is ended inside the U-bend case 1 with an outlet hole 1f. Inside the U-bend case 1 there is installed a removable insert 6 blocking the odour and comprising the insert casing 6a+6b where a bent channel 6e is made so that to be impermeable for fluid, in particular, the channel with at least one U-shape section comprising an inlet hole 6c and an outlet hole 6d of the channel 6e. The inlet hole 6c and outlet hole 6d of the channel 6e in the odour blocking insert 6 are made with the possibility of sealed connection with the inlet hole 1c and the outlet hole 1f respectively. The inlet hole 1c of the inlet branch pipe 1b and the outlet hole 1f of the outlet branch pipe 1e are turned to the front wall 1g of the U-bend case 1. The inlet hole 6c and outlet hole 6d of the channel 6e in the odour blocking insert 6 are made in the back wall 6f of the insert 6 casing body 6a.

EFFECT: invention provides for efficient blocking of odour, simplified maintenance.

12 cl, 7 dwg