Caroma Industries Limited

Colin William Wooldridge

David Chelchowski

Sam Robertson England

Terry Hall

A lifting lever () for a cistern flush valve. The lever includes a first end () adapted for operative engagement with the cistern flush valve, a second end () adapted for operative engagement with a flush actuation button () and a pivot mounting () between the first () and second () ends. The second end () has first and second engagement regions () which are respectively closer and farther to the pivot mounting (). Initial movement of the button () causes it to engage the second engagement region () and pivot the lever () through a first predetermined range of movement whereafter further movement of the button () in the same direction causes it to engage the first engagement region () and further pivot the lever ().

Lifting lever for a cistern flush valve

Operating buttons (2, 3; 102, 103; and 202, 203) for a dual flush cistern or flush tank include different operating surface area of each button presented to the user and provide an indication as to which button provides the reduced flush and which button provides the full flush. A hinge and latch assembly is used to fabricate such buttons (2, 3) by folding from a moulded form into an operational form.

Dual flush cistern button arrangement

The present invention discloses an operating mechanism for a cistern (1) or flush tank which is able to be used for a wide variety of cisterns, irrespective of their volume to depth profile. The preferred mechanism takes the form of a generally cup-shaped weir (22) which surrounds the flush valve (18) and from which a support frame (7) extends. The height of the rim of the weir is able to be selected or adjusted, for example by the use of a number of rupturable panels (24) located in the walls of the weir (22). A mechanism (26,27) to adjust for height variations between the flush actuators (14) and the flush operating mechanism (15) is also disclosed.

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Modbury, Australia

Colin William Wooldridge