Flush control for water closet has air storage chamber inside cistern connected to atmosphere by vent line

摘要

The water closet flush control has an air storage chamber (20) inside the cistern (3) and connected to atmosphere by a vent line (30) with a controlled opening. The opening of the vent line operates as a function of the duration of use of the flush so that the amount of water stored is a function of the usage. Claims include a toilet using the flush system