Abstract

The present invention relates to a barrier assembly comprising a barrier (16) adapted to move between a first raised position and a second lowered position; actuating means (rack 12 and pinion 14) adapted to actuate the barrier between the first and second positions; and means in the form of a diaphragm arrangement comprising a diaphragm (7), a diaphragm cage (8) and a cup mechanism (9), adapted for transferring a fluid pressure associated with a variable head of a first fluid to the actuating means wherein the fluid pressure associated with the variable head of the first fluid is translated to the actuating means in order to actuate the barrier.

IPC Classes  ?

• E02B 3/10 - DamsDykesSluice ways or other structures for dykes, dams, or the like

Abstract

A flushing valve suitable for reducing water wastage from a cistern of a toilet is described. The flushing valve comprising an inlet valve, an outlet valve and a timer valve. The timer valve is mechanically connected to both the inlet valve and the outlet valve so as to control their movement between an open and a closed position such that the timer valve prevents both the inlet valve and the outlet valve from simultaneously being in their open positions. By preventing the inlet valve and the outlet valve from simultaneously being in their open positions results in the fact that the flushing valve does not allow the cistern to start to refill until after the flush process is complete. This results in a significant reduction in the volume of water passing through the cistern during each flushing cycle.

IPC Classes  ?

• E03D 1/06 - Cisterns with tube siphons
• E03D 1/36 - Associated working of inlet and outlet valves