TOILET MODULE Russian patent published in 2012 - IPC E03D3/00 

FIELD: personal use articles.

SUBSTANCE: toilet module contains a toilet bowl, a soil appliance, a sewage pipe with a discharge valve; a device of flush with a water pump, a vacuum device, a controller. The vacuum device is connected to the sewage pipe. Between the sewage pipe and the soil appliance a self-slamming check valve is installed. The self-slamming check valve is designed as a cylindrical thin-walled tube of elastic material such as rubber. In the middle part of the pipe a deepening is stamped. The deepening is directed with its outer convex part into the cavity of the tube with an ability of complete overlap of the sewage pipe opening.

EFFECT: design enables to minimise the sound pressure level in the toilet cabin and improve the reliability of operation of the toilet unit.

5 dwg